Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions

In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional group...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Guo, Shengli [verfasserIn] Yuan, Shujie [verfasserIn] Geng, Weile [verfasserIn] Dong, Ziwen [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	Mine fires Spontaneous combustion Coal self-heating Coal oxidation Eroded coal oxidation

Übergeordnetes Werk:	Enthalten in: Fuel - New York, NY [u.a.] : Elsevier, 1970, 293
Übergeordnetes Werk:	volume:293

DOI / URN:	10.1016/j.fuel.2021.120422

Katalog-ID:	ELV005713404

Internformat


LEADER	01000caa a22002652 4500
001	ELV005713404
003	DE-627
005	20240104093328.0
007	cr uuu---uuuuu
008	230504s2021 xx \|\|\|\|\|o 00\| \|\|eng c
024	7		\|a 10.1016/j.fuel.2021.120422 \|2 doi
035			\|a (DE-627)ELV005713404
035			\|a (ELSEVIER)S0016-2361(21)00298-2
040			\|a DE-627 \|b ger \|c DE-627 \|e rda
041			\|a eng
082	0	4	\|a 660 \|q VZ
084			\|a 58.21 \|2 bkl
100	1		\|a Guo, Shengli \|e verfasserin \|4 aut
245	1	0	\|a Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions
264		1	\|c 2021
336			\|a nicht spezifiziert \|b zzz \|2 rdacontent
337			\|a Computermedien \|b c \|2 rdamedia
338			\|a Online-Ressource \|b cr \|2 rdacarrier
520			\|a In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion.
650		4	\|a Mine fires
650		4	\|a Spontaneous combustion
650		4	\|a Coal self-heating
650		4	\|a Coal oxidation
650		4	\|a Eroded coal oxidation
700	1		\|a Yuan, Shujie \|e verfasserin \|4 aut
700	1		\|a Geng, Weile \|e verfasserin \|4 aut
700	1		\|a Dong, Ziwen \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Fuel \|d New York, NY [u.a.] : Elsevier, 1970 \|g 293 \|h Online-Ressource \|w (DE-627)300898584 \|w (DE-600)1483656-7 \|w (DE-576)09555176X \|x 0016-2361 \|7 nnns
773	1	8	\|g volume:293
912			\|a GBV_USEFLAG_U
912			\|a GBV_ELV
912			\|a SYSFLAG_U
912			\|a SSG-OLC-PHA
912			\|a GBV_ILN_20
912			\|a GBV_ILN_22
912			\|a GBV_ILN_23
912			\|a GBV_ILN_24
912			\|a GBV_ILN_31
912			\|a GBV_ILN_32
912			\|a GBV_ILN_40
912			\|a GBV_ILN_60
912			\|a GBV_ILN_62
912			\|a GBV_ILN_63
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
912			\|a GBV_ILN_74
912			\|a GBV_ILN_90
912			\|a GBV_ILN_95
912			\|a GBV_ILN_100
912			\|a GBV_ILN_105
912			\|a GBV_ILN_110
912			\|a GBV_ILN_150
912			\|a GBV_ILN_151
912			\|a GBV_ILN_224
912			\|a GBV_ILN_370
912			\|a GBV_ILN_602
912			\|a GBV_ILN_702
912			\|a GBV_ILN_2003
912			\|a GBV_ILN_2004
912			\|a GBV_ILN_2005
912			\|a GBV_ILN_2006
912			\|a GBV_ILN_2008
912			\|a GBV_ILN_2010
912			\|a GBV_ILN_2011
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_2015
912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2038
912			\|a GBV_ILN_2044
912			\|a GBV_ILN_2048
912			\|a GBV_ILN_2049
912			\|a GBV_ILN_2050
912			\|a GBV_ILN_2056
912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2065
912			\|a GBV_ILN_2068
912			\|a GBV_ILN_2088
912			\|a GBV_ILN_2111
912			\|a GBV_ILN_2112
912			\|a GBV_ILN_2113
912			\|a GBV_ILN_2118
912			\|a GBV_ILN_2122
912			\|a GBV_ILN_2129
912			\|a GBV_ILN_2143
912			\|a GBV_ILN_2147
912			\|a GBV_ILN_2148
912			\|a GBV_ILN_2152
912			\|a GBV_ILN_2153
912			\|a GBV_ILN_2190
912			\|a GBV_ILN_2336
912			\|a GBV_ILN_2470
912			\|a GBV_ILN_2507
912			\|a GBV_ILN_2522
912			\|a GBV_ILN_4035
912			\|a GBV_ILN_4037
912			\|a GBV_ILN_4046
912			\|a GBV_ILN_4112
912			\|a GBV_ILN_4125
912			\|a GBV_ILN_4126
912			\|a GBV_ILN_4242
912			\|a GBV_ILN_4251
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4322
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
936	b	k	\|a 58.21 \|j Brennstoffe \|j Kraftstoffe \|j Explosivstoffe \|q VZ
951			\|a AR
952			\|d 293

Indexfelder

author_variant	s g sg s y sy w g wg z d zd
matchkey_str	article:00162361:2021----::rsoefcomcotutrcagadxdtobhvoolnfaeoln
hierarchy_sort_str	2021
bklnumber	58.21
publishDate	2021
allfields	10.1016/j.fuel.2021.120422 doi (DE-627)ELV005713404 (ELSEVIER)S0016-2361(21)00298-2 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Guo, Shengli verfasserin aut Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion. Mine fires Spontaneous combustion Coal self-heating Coal oxidation Eroded coal oxidation Yuan, Shujie verfasserin aut Geng, Weile verfasserin aut Dong, Ziwen verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 293 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:293 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.21 Brennstoffe Kraftstoffe Explosivstoffe VZ AR 293
spelling	10.1016/j.fuel.2021.120422 doi (DE-627)ELV005713404 (ELSEVIER)S0016-2361(21)00298-2 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Guo, Shengli verfasserin aut Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion. Mine fires Spontaneous combustion Coal self-heating Coal oxidation Eroded coal oxidation Yuan, Shujie verfasserin aut Geng, Weile verfasserin aut Dong, Ziwen verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 293 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:293 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.21 Brennstoffe Kraftstoffe Explosivstoffe VZ AR 293
allfields_unstemmed	10.1016/j.fuel.2021.120422 doi (DE-627)ELV005713404 (ELSEVIER)S0016-2361(21)00298-2 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Guo, Shengli verfasserin aut Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion. Mine fires Spontaneous combustion Coal self-heating Coal oxidation Eroded coal oxidation Yuan, Shujie verfasserin aut Geng, Weile verfasserin aut Dong, Ziwen verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 293 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:293 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.21 Brennstoffe Kraftstoffe Explosivstoffe VZ AR 293
allfieldsGer	10.1016/j.fuel.2021.120422 doi (DE-627)ELV005713404 (ELSEVIER)S0016-2361(21)00298-2 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Guo, Shengli verfasserin aut Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion. Mine fires Spontaneous combustion Coal self-heating Coal oxidation Eroded coal oxidation Yuan, Shujie verfasserin aut Geng, Weile verfasserin aut Dong, Ziwen verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 293 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:293 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.21 Brennstoffe Kraftstoffe Explosivstoffe VZ AR 293
allfieldsSound	10.1016/j.fuel.2021.120422 doi (DE-627)ELV005713404 (ELSEVIER)S0016-2361(21)00298-2 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Guo, Shengli verfasserin aut Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion. Mine fires Spontaneous combustion Coal self-heating Coal oxidation Eroded coal oxidation Yuan, Shujie verfasserin aut Geng, Weile verfasserin aut Dong, Ziwen verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 293 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:293 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 58.21 Brennstoffe Kraftstoffe Explosivstoffe VZ AR 293
language	English
source	Enthalten in Fuel 293 volume:293
sourceStr	Enthalten in Fuel 293 volume:293
format_phy_str_mv	Article
bklname	Brennstoffe Kraftstoffe Explosivstoffe
institution	findex.gbv.de
topic_facet	Mine fires Spontaneous combustion Coal self-heating Coal oxidation Eroded coal oxidation
dewey-raw	660
isfreeaccess_bool	false
container_title	Fuel
authorswithroles_txt_mv	Guo, Shengli @@aut@@ Yuan, Shujie @@aut@@ Geng, Weile @@aut@@ Dong, Ziwen @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	300898584
dewey-sort	3660
id	ELV005713404
language_de	englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV005713404</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20240104093328.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230504s2021 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.fuel.2021.120422</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV005713404</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0016-2361(21)00298-2</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">58.21</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Guo, Shengli</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mine fires</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Spontaneous combustion</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coal self-heating</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coal oxidation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Eroded coal oxidation</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yuan, Shujie</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Geng, Weile</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dong, Ziwen</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Fuel</subfield><subfield code="d">New York, NY [u.a.] : Elsevier, 1970</subfield><subfield code="g">293</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)300898584</subfield><subfield code="w">(DE-600)1483656-7</subfield><subfield code="w">(DE-576)09555176X</subfield><subfield code="x">0016-2361</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:293</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_63</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_90</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_100</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_150</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_224</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_370</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_702</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2003</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2004</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2005</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2006</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2008</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2010</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2011</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2015</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2021</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2025</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2027</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2034</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2038</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2044</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2048</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2049</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2050</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2056</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2059</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2061</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2064</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2065</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2068</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2088</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2111</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2113</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2118</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2122</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2129</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2143</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2147</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2148</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2152</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2153</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2190</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2336</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2470</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2507</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2522</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4035</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4046</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4126</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4242</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4251</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4322</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4326</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4333</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4334</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4335</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4338</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4393</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">58.21</subfield><subfield code="j">Brennstoffe</subfield><subfield code="j">Kraftstoffe</subfield><subfield code="j">Explosivstoffe</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">293</subfield></datafield></record></collection>
author	Guo, Shengli
spellingShingle	Guo, Shengli ddc 660 bkl 58.21 misc Mine fires misc Spontaneous combustion misc Coal self-heating misc Coal oxidation misc Eroded coal oxidation Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions
authorStr	Guo, Shengli
ppnlink_with_tag_str_mv	@@773@@(DE-627)300898584
format	electronic Article
dewey-ones	660 - Chemical engineering
delete_txt_mv	keep
author_role	aut aut aut aut
collection	elsevier
remote_str	true
illustrated	Not Illustrated
issn	0016-2361
topic_title	660 VZ 58.21 bkl Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions Mine fires Spontaneous combustion Coal self-heating Coal oxidation Eroded coal oxidation
topic	ddc 660 bkl 58.21 misc Mine fires misc Spontaneous combustion misc Coal self-heating misc Coal oxidation misc Eroded coal oxidation
topic_unstemmed	ddc 660 bkl 58.21 misc Mine fires misc Spontaneous combustion misc Coal self-heating misc Coal oxidation misc Eroded coal oxidation
topic_browse	ddc 660 bkl 58.21 misc Mine fires misc Spontaneous combustion misc Coal self-heating misc Coal oxidation misc Eroded coal oxidation
format_facet	Elektronische Aufsätze Aufsätze Elektronische Ressource
format_main_str_mv	Text Zeitschrift/Artikel
carriertype_str_mv	cr
hierarchy_parent_title	Fuel
hierarchy_parent_id	300898584
dewey-tens	660 - Chemical engineering
hierarchy_top_title	Fuel
isfreeaccess_txt	false
familylinks_str_mv	(DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X
title	Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions
ctrlnum	(DE-627)ELV005713404 (ELSEVIER)S0016-2361(21)00298-2
title_full	Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions
author_sort	Guo, Shengli
journal	Fuel
journalStr	Fuel
lang_code	eng
isOA_bool	false
dewey-hundreds	600 - Technology
recordtype	marc
publishDateSort	2021
contenttype_str_mv	zzz
author_browse	Guo, Shengli Yuan, Shujie Geng, Weile Dong, Ziwen
container_volume	293
class	660 VZ 58.21 bkl
format_se	Elektronische Aufsätze
author-letter	Guo, Shengli
doi_str_mv	10.1016/j.fuel.2021.120422
dewey-full	660
author2-role	verfasserin
title_sort	erosion effect on microstructure change and oxidation behavior of long-flame coal under different ph conditions
title_auth	Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions
abstract	In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion.
abstractGer	In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion.
abstract_unstemmed	In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion.
collection_details	GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393
title_short	Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions
remote_bool	true
author2	Yuan, Shujie Geng, Weile Dong, Ziwen
author2Str	Yuan, Shujie Geng, Weile Dong, Ziwen
ppnlink	300898584
mediatype_str_mv	c
isOA_txt	false
hochschulschrift_bool	false
doi_str	10.1016/j.fuel.2021.120422
up_date	2024-07-06T18:54:29.448Z
_version_	1803856977015603200
fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV005713404</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20240104093328.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230504s2021 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.fuel.2021.120422</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV005713404</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0016-2361(21)00298-2</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">660</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">58.21</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Guo, Shengli</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">In order to study the effect of aqueous solutions with different pH values on coal oxidation behavior, coal samples were eroded in aqueous solution of various pH values (4, 5, 7 and 8) for 30 days and to study its microstructure change and oxidation behaviors. The pore structure and functional groups were characterized by low-temperature N2 adsorption and Fourier transform infrared spectroscopy. The oxidation characteristics of coal were investigated by temperature-programmed experiments. Compared with raw coal, larger average pore diameter and pore volume, more active functional groups, such as methyl, methylene, hydroxy and ether, were found in the eroded coal. Among them, the microstructure of coal eroded in acid water changes most obviously. Eroded coal samples have more pores with diameter > 20 nm and an obvious increase in particle surface roughness, which facilitates the adsorption and transportation of O2 in coal body. The O2 consumption and CO production of dried eroded coal, especially eroded in aqueous solution with pH = 4, are more than those of raw coal, and its apparent activation energy decreases both in the slow oxidation stage and the fast oxidation stage, which indicates that the eroded coal is more prone to spontaneous combustion.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Mine fires</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Spontaneous combustion</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coal self-heating</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coal oxidation</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Eroded coal oxidation</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Yuan, Shujie</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Geng, Weile</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Dong, Ziwen</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Fuel</subfield><subfield code="d">New York, NY [u.a.] : Elsevier, 1970</subfield><subfield code="g">293</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)300898584</subfield><subfield code="w">(DE-600)1483656-7</subfield><subfield code="w">(DE-576)09555176X</subfield><subfield code="x">0016-2361</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:293</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_63</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_90</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_100</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_150</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_224</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_370</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_702</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2003</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2004</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2005</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2006</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2008</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2010</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2011</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2015</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2021</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2025</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2027</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2034</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2038</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2044</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2048</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2049</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2050</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2056</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2059</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2061</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2064</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2065</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2068</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2088</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2111</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2113</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2118</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2122</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2129</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2143</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2147</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2148</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2152</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2153</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2190</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2336</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2470</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2507</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2522</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4035</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4046</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4126</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4242</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4251</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4322</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4326</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4333</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4334</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4335</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4338</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4393</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">58.21</subfield><subfield code="j">Brennstoffe</subfield><subfield code="j">Kraftstoffe</subfield><subfield code="j">Explosivstoffe</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">293</subfield></datafield></record></collection>
score	7.400505

Nicht das Richtige dabei?

Schreiben Sie uns!

Erosion effect on microstructure change and oxidation behavior of long-flame coal under different pH conditions

Nicht das Richtige dabei?

Zugang & Verfügbarkeit

Vorhandene Bände

Nicht das Richtige dabei?