Research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation*

The paper presents the results of research for sorbents preparation when combining the processes of chemical modification and steam-gas activation of lignite from the Kharanorsk deposit (Zabaikalsky Krai). The experimental studies were carried out by two ways of activation methods combination: paral...
Ausführliche Beschreibung

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Autor*in:	Vorsina Elena [verfasserIn] Moskalenko Tatiana [verfasserIn] Mikheev Valery [verfasserIn] Bilen Mehmet [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch ; Französisch

Erschienen:	2020

Schlagwörter:	lignite alkaline activation steam-gas activation carbon sorbents active carbon iodine adsorption activity isothermal time thermal shock

Übergeordnetes Werk:	In: E3S Web of Conferences - EDP Sciences, 2013, 192, p 02025(2020)
Übergeordnetes Werk:	volume:192, p 02025 ; year:2020

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1051/e3sconf/202019202025

Katalog-ID:	DOAJ051595257

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authorswithroles_txt_mv	Vorsina Elena @@aut@@ Moskalenko Tatiana @@aut@@ Mikheev Valery @@aut@@ Bilen Mehmet @@aut@@
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callnumber-first	G - Geography, Anthropology, Recreation
author	Vorsina Elena
spellingShingle	Vorsina Elena misc GE1-350 misc lignite misc alkaline activation misc steam-gas activation misc carbon sorbents misc active carbon misc iodine adsorption activity misc isothermal time misc thermal shock misc Environmental sciences Research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation*
authorStr	Vorsina Elena
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topic_title	GE1-350 Research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation* lignite alkaline activation steam-gas activation carbon sorbents active carbon iodine adsorption activity isothermal time thermal shock
topic	misc GE1-350 misc lignite misc alkaline activation misc steam-gas activation misc carbon sorbents misc active carbon misc iodine adsorption activity misc isothermal time misc thermal shock misc Environmental sciences
topic_unstemmed	misc GE1-350 misc lignite misc alkaline activation misc steam-gas activation misc carbon sorbents misc active carbon misc iodine adsorption activity misc isothermal time misc thermal shock misc Environmental sciences
topic_browse	misc GE1-350 misc lignite misc alkaline activation misc steam-gas activation misc carbon sorbents misc active carbon misc iodine adsorption activity misc isothermal time misc thermal shock misc Environmental sciences
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title	Research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation*
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title_full	Research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation*
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author_browse	Vorsina Elena Moskalenko Tatiana Mikheev Valery Bilen Mehmet
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title_sort	research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation*
callnumber	GE1-350
title_auth	Research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation*
abstract	The paper presents the results of research for sorbents preparation when combining the processes of chemical modification and steam-gas activation of lignite from the Kharanorsk deposit (Zabaikalsky Krai). The experimental studies were carried out by two ways of activation methods combination: parallel and successive exposure on feedstock. The lignite processed by chemical reagent (KOH) was exposed to steam during the whole period of thermolysis under the parallel action. Under successive exposure, the thermolysis was performed in two stages - first without steam supply, then with steam-gas activation. In the work the optimal parameters of the process of combining the chemical and steam-gas lignite activation methods were determined and the quality of the generated sorbents was studied. The efficiency of combined activation was estimated by comparing the sorption characteristics of the samples with the results obtained during chemical and steam-gas activation as autonomous processes and with the requirements to these characteristics of industrially produced active carbon grades. Combined activation of lignite allowed to increase the value of iodine adsorption activity in comparison with autonomous steam-gas activation by 1.8-2 times, chemical activation - by 2.7-10 %. The obtained values of iodine adsorption activity at combination of chemical modification and steam-gas activation exceed the value of 100 % (1000 mg/g) that meets the requirements to high quality industrially produced active carbons of SKT-0 grade.
abstractGer	The paper presents the results of research for sorbents preparation when combining the processes of chemical modification and steam-gas activation of lignite from the Kharanorsk deposit (Zabaikalsky Krai). The experimental studies were carried out by two ways of activation methods combination: parallel and successive exposure on feedstock. The lignite processed by chemical reagent (KOH) was exposed to steam during the whole period of thermolysis under the parallel action. Under successive exposure, the thermolysis was performed in two stages - first without steam supply, then with steam-gas activation. In the work the optimal parameters of the process of combining the chemical and steam-gas lignite activation methods were determined and the quality of the generated sorbents was studied. The efficiency of combined activation was estimated by comparing the sorption characteristics of the samples with the results obtained during chemical and steam-gas activation as autonomous processes and with the requirements to these characteristics of industrially produced active carbon grades. Combined activation of lignite allowed to increase the value of iodine adsorption activity in comparison with autonomous steam-gas activation by 1.8-2 times, chemical activation - by 2.7-10 %. The obtained values of iodine adsorption activity at combination of chemical modification and steam-gas activation exceed the value of 100 % (1000 mg/g) that meets the requirements to high quality industrially produced active carbons of SKT-0 grade.
abstract_unstemmed	The paper presents the results of research for sorbents preparation when combining the processes of chemical modification and steam-gas activation of lignite from the Kharanorsk deposit (Zabaikalsky Krai). The experimental studies were carried out by two ways of activation methods combination: parallel and successive exposure on feedstock. The lignite processed by chemical reagent (KOH) was exposed to steam during the whole period of thermolysis under the parallel action. Under successive exposure, the thermolysis was performed in two stages - first without steam supply, then with steam-gas activation. In the work the optimal parameters of the process of combining the chemical and steam-gas lignite activation methods were determined and the quality of the generated sorbents was studied. The efficiency of combined activation was estimated by comparing the sorption characteristics of the samples with the results obtained during chemical and steam-gas activation as autonomous processes and with the requirements to these characteristics of industrially produced active carbon grades. Combined activation of lignite allowed to increase the value of iodine adsorption activity in comparison with autonomous steam-gas activation by 1.8-2 times, chemical activation - by 2.7-10 %. The obtained values of iodine adsorption activity at combination of chemical modification and steam-gas activation exceed the value of 100 % (1000 mg/g) that meets the requirements to high quality industrially produced active carbons of SKT-0 grade.
collection_details	GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700
title_short	Research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation*
url	https://doi.org/10.1051/e3sconf/202019202025 https://doaj.org/article/4ecd2b2d9990477e995e9636fa371a5c https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/52/e3sconf_pcdg2020_02025.pdf https://doaj.org/toc/2267-1242
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author2	Moskalenko Tatiana Mikheev Valery Bilen Mehmet
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up_date	2024-07-03T21:14:39.384Z
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Research of efficiency of lignite chemical modification and steam-gas activation combining for sorbents preparation*

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