Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups
Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Lv, Min [verfasserIn] Luo, Guangqian [verfasserIn] Zou, Renjie [verfasserIn] Ji, Qingyu [verfasserIn] Fang, Can [verfasserIn] Wang, Li [verfasserIn] Li, Xian [verfasserIn] Yao, Hong [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Fuel - New York, NY [u.a.] : Elsevier, 1970, 322 |
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| Übergeordnetes Werk: |
volume:322 |
| DOI / URN: |
10.1016/j.fuel.2022.124229 |
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| Katalog-ID: |
ELV057917817 |
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| 245 | 1 | 0 | |a Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups |
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| 520 | |a Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. | ||
| 650 | 4 | |a Mercury | |
| 650 | 4 | |a Activated carbon | |
| 650 | 4 | |a C-Cl functional groups | |
| 650 | 4 | |a Polyvinyl chloride | |
| 650 | 4 | |a Co-pyrolysis | |
| 700 | 1 | |a Luo, Guangqian |e verfasserin |4 aut | |
| 700 | 1 | |a Zou, Renjie |e verfasserin |4 aut | |
| 700 | 1 | |a Ji, Qingyu |e verfasserin |4 aut | |
| 700 | 1 | |a Fang, Can |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Li |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Xian |e verfasserin |4 aut | |
| 700 | 1 | |a Yao, Hong |e verfasserin |4 aut | |
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10.1016/j.fuel.2022.124229 doi (DE-627)ELV057917817 (ELSEVIER)S0016-2361(22)01084-5 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Lv, Min verfasserin aut Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. Mercury Activated carbon C-Cl functional groups Polyvinyl chloride Co-pyrolysis Luo, Guangqian verfasserin aut Zou, Renjie verfasserin aut Ji, Qingyu verfasserin aut Fang, Can verfasserin aut Wang, Li verfasserin aut Li, Xian verfasserin aut Yao, Hong verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 322 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:322 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 322 |
| spelling |
10.1016/j.fuel.2022.124229 doi (DE-627)ELV057917817 (ELSEVIER)S0016-2361(22)01084-5 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Lv, Min verfasserin aut Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. Mercury Activated carbon C-Cl functional groups Polyvinyl chloride Co-pyrolysis Luo, Guangqian verfasserin aut Zou, Renjie verfasserin aut Ji, Qingyu verfasserin aut Fang, Can verfasserin aut Wang, Li verfasserin aut Li, Xian verfasserin aut Yao, Hong verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 322 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:322 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 322 |
| allfields_unstemmed |
10.1016/j.fuel.2022.124229 doi (DE-627)ELV057917817 (ELSEVIER)S0016-2361(22)01084-5 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Lv, Min verfasserin aut Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. Mercury Activated carbon C-Cl functional groups Polyvinyl chloride Co-pyrolysis Luo, Guangqian verfasserin aut Zou, Renjie verfasserin aut Ji, Qingyu verfasserin aut Fang, Can verfasserin aut Wang, Li verfasserin aut Li, Xian verfasserin aut Yao, Hong verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 322 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:322 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 322 |
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10.1016/j.fuel.2022.124229 doi (DE-627)ELV057917817 (ELSEVIER)S0016-2361(22)01084-5 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Lv, Min verfasserin aut Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. Mercury Activated carbon C-Cl functional groups Polyvinyl chloride Co-pyrolysis Luo, Guangqian verfasserin aut Zou, Renjie verfasserin aut Ji, Qingyu verfasserin aut Fang, Can verfasserin aut Wang, Li verfasserin aut Li, Xian verfasserin aut Yao, Hong verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 322 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:322 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 322 |
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10.1016/j.fuel.2022.124229 doi (DE-627)ELV057917817 (ELSEVIER)S0016-2361(22)01084-5 DE-627 ger DE-627 rda eng 660 VZ 58.21 bkl Lv, Min verfasserin aut Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. Mercury Activated carbon C-Cl functional groups Polyvinyl chloride Co-pyrolysis Luo, Guangqian verfasserin aut Zou, Renjie verfasserin aut Ji, Qingyu verfasserin aut Fang, Can verfasserin aut Wang, Li verfasserin aut Li, Xian verfasserin aut Yao, Hong verfasserin aut Enthalten in Fuel New York, NY [u.a.] : Elsevier, 1970 322 Online-Ressource (DE-627)300898584 (DE-600)1483656-7 (DE-576)09555176X 0016-2361 nnns volume:322 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 322 |
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Enthalten in Fuel 322 volume:322 |
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Mercury Activated carbon C-Cl functional groups Polyvinyl chloride Co-pyrolysis |
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Lv, Min @@aut@@ Luo, Guangqian @@aut@@ Zou, Renjie @@aut@@ Ji, Qingyu @@aut@@ Fang, Can @@aut@@ Wang, Li @@aut@@ Li, Xian @@aut@@ Yao, Hong @@aut@@ |
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2022-01-01T00:00:00Z |
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Lv, Min |
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Lv, Min ddc 660 bkl 58.21 misc Mercury misc Activated carbon misc C-Cl functional groups misc Polyvinyl chloride misc Co-pyrolysis Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups |
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660 VZ 58.21 bkl Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups Mercury Activated carbon C-Cl functional groups Polyvinyl chloride Co-pyrolysis |
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Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups |
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Lv, Min Luo, Guangqian Zou, Renjie Ji, Qingyu Fang, Can Wang, Li Li, Xian Yao, Hong |
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10.1016/j.fuel.2022.124229 |
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study on the elemental mercury removal performance of co-pyrolyzed cl-loading activated carbon and the formation mechanism of c-cl functional groups |
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Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups |
| abstract |
Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. |
| abstractGer |
Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. |
| abstract_unstemmed |
Co-pyrolysis is a convenient method to load chloride on an adsorbent to improve its mercury removal ability. However, as a main reactive species, the formation mechanism of C-Cl functional groups remained unclear. In this study, the coconut shell activated carbon (AC) was co-pyrolyzed with polyvinyl chloride (PVC) to prepare a Cl-loading activated carbon, and it presented the best mercury removal efficiency (greater than 85%) at 140 °C. NO, O2 and HCl promoted the mercury removal ability of Cl-loading activated carbon, while SO2 inhibited. By comparing the performance of Cl-loading adsorbents using different Cl sources and supporters, we found that there were two formation paths for C-Cl functional groups. The first path was that some organic chlorine in PVC was reformed at low temperature (∼300 °C), and adhered to the surface of the adsorbent in the form of C-Cl functional groups. As the co-pyrolysis temperature increased, unstable C-Cl functional groups were decomposed and the mercury removal ability became weak. The second path was that the Cl first released out from PVC as gaseous HCl, and then combined with newly exposed carbon atom sites, which were generated owing to the devolatilization process of AC at high temperature (∼800 °C), to form C-Cl functional groups for mercury removal. |
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Study on the elemental mercury removal performance of co-pyrolyzed Cl-loading activated carbon and the formation mechanism of C-Cl functional groups |
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| score |
7.4021015 |