CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed

The waste ion-exchange resin–based activated carbon (WIRAC) was utilized for CO2 adsorption. The effect of adsorption temperature, gas flow, CO2 concentration, and adsorbent filling content on CO2 adsorption properties of WIRAC and the effect of desorption temperature and sweep gas flow on CO2 desor...

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Main Authors: Mengqi Wei, Qiuyue Zhao
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-11-01
Series:Frontiers in Energy Research
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fenrg.2021.772710/full
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author Mengqi Wei
Mengqi Wei
Qiuyue Zhao
author_facet Mengqi Wei
Mengqi Wei
Qiuyue Zhao
author_sort Mengqi Wei
collection DOAJ
description The waste ion-exchange resin–based activated carbon (WIRAC) was utilized for CO2 adsorption. The effect of adsorption temperature, gas flow, CO2 concentration, and adsorbent filling content on CO2 adsorption properties of WIRAC and the effect of desorption temperature and sweep gas flow on CO2 desorption performances of WIRAC were researched. In the adsorption process, with the increase of adsorption temperature, the CO2 adsorption capacity and adsorption rate decrease; as the gas flow increases, the CO2 adsorption capacity decreases, but the adsorption rate increases; with the increase of CO2 concentration and adsorbent filling content, the CO2 adsorption capacity and adsorption rate both increase. In the desorption process, the higher the desorption temperature and the smaller the sweep gas flow, the higher the CO2 purity of product gas and the longer the desorption time. In order to make sure the adsorbent be used efficiently and the higher CO2 concentration of product gas, the adsorption and desorption conditions selected should be a suitable choice.
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spelling doaj.art-070f406f76bb40e2831d3c51ad3089622022-12-21T19:38:51ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2021-11-01910.3389/fenrg.2021.772710772710CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed BedMengqi Wei0Mengqi Wei1Qiuyue Zhao2Jiangsu Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, ChinaJiangsu Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, ChinaThe waste ion-exchange resin–based activated carbon (WIRAC) was utilized for CO2 adsorption. The effect of adsorption temperature, gas flow, CO2 concentration, and adsorbent filling content on CO2 adsorption properties of WIRAC and the effect of desorption temperature and sweep gas flow on CO2 desorption performances of WIRAC were researched. In the adsorption process, with the increase of adsorption temperature, the CO2 adsorption capacity and adsorption rate decrease; as the gas flow increases, the CO2 adsorption capacity decreases, but the adsorption rate increases; with the increase of CO2 concentration and adsorbent filling content, the CO2 adsorption capacity and adsorption rate both increase. In the desorption process, the higher the desorption temperature and the smaller the sweep gas flow, the higher the CO2 purity of product gas and the longer the desorption time. In order to make sure the adsorbent be used efficiently and the higher CO2 concentration of product gas, the adsorption and desorption conditions selected should be a suitable choice.https://www.frontiersin.org/articles/10.3389/fenrg.2021.772710/fullCO2 adsorptionwaste ion-exchange resin–based activated carbonfixed bedbreakthrough curvedesorption
spellingShingle Mengqi Wei
Mengqi Wei
Qiuyue Zhao
CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed
Frontiers in Energy Research
CO2 adsorption
waste ion-exchange resin–based activated carbon
fixed bed
breakthrough curve
desorption
title CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed
title_full CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed
title_fullStr CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed
title_full_unstemmed CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed
title_short CO2 Adsorption and Desorption by Waste Ion-Exchange Resin–Based Activated Carbon on Fixed Bed
title_sort co2 adsorption and desorption by waste ion exchange resin based activated carbon on fixed bed
topic CO2 adsorption
waste ion-exchange resin–based activated carbon
fixed bed
breakthrough curve
desorption
url https://www.frontiersin.org/articles/10.3389/fenrg.2021.772710/full
work_keys_str_mv AT mengqiwei co2adsorptionanddesorptionbywasteionexchangeresinbasedactivatedcarbononfixedbed
AT mengqiwei co2adsorptionanddesorptionbywasteionexchangeresinbasedactivatedcarbononfixedbed
AT qiuyuezhao co2adsorptionanddesorptionbywasteionexchangeresinbasedactivatedcarbononfixedbed