Different Approaches for the Development of Low-Cost CO2 Adsorbents
Different carbon materials were tested as precursors for the production of CO2 adsorbents. The chemical modification of the surface of the prepared adsorbents was studied by means of three different approaches: impregnation with amines, electrophilic aromatic substitution and heat treatment in the presence of ammonia. The samples were chemically characterized and the porous texture was evaluated from the N2 adsorption isotherms at -196 ºC. The CO2 adsorption capacities of the adsorbents at 25 and 100 ºC were evaluated in a thermogravimetric analyzer. In general, the incorporation of basic nitrogen functionalities enhanced the CO2 capture capacities of the modified carbons but this increase depended on the textural properties of the support and the surface modification methodology. CO2 adsorption capacities of up to 111 mg CO2/ g at room temperature were attained. All the tested samples were completely regenerated when subjected to heat treatment at 100 ºC under inert atmosphere.
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Format: | artículo biblioteca |
Language: | English |
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American Society of Civil Engineers
2009-03
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Subjects: | Carbon dioxide capture, Adsorption, Waste management, Surface chemistry-modification, |
Online Access: | http://hdl.handle.net/10261/103002 |
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dig-incar-es-10261-1030022020-01-22T12:26:55Z Different Approaches for the Development of Low-Cost CO2 Adsorbents González Plaza, Marta Pevida García, Covadonga Arias Rozada, Borja Casal Banciella, María Dolores Fernández Martín, Claudia Fermoso Domínguez, Javier Pis Martínez, José Juan Rubiera González, Fernando Carbon dioxide capture Adsorption Waste management Surface chemistry-modification Different carbon materials were tested as precursors for the production of CO2 adsorbents. The chemical modification of the surface of the prepared adsorbents was studied by means of three different approaches: impregnation with amines, electrophilic aromatic substitution and heat treatment in the presence of ammonia. The samples were chemically characterized and the porous texture was evaluated from the N2 adsorption isotherms at -196 ºC. The CO2 adsorption capacities of the adsorbents at 25 and 100 ºC were evaluated in a thermogravimetric analyzer. In general, the incorporation of basic nitrogen functionalities enhanced the CO2 capture capacities of the modified carbons but this increase depended on the textural properties of the support and the surface modification methodology. CO2 adsorption capacities of up to 111 mg CO2/ g at room temperature were attained. All the tested samples were completely regenerated when subjected to heat treatment at 100 ºC under inert atmosphere. This work was carried out with financial support from the Spanish MEC (Project CTM2005-03075/TECNO). M.G.P., C.F.M. and J.F. acknowledge funding from the CSIC I3P Program co-financed by the European Social Fund, CSIC JAE Program and Plan Regional de Investigación del Principado de Asturias, respectively. Peer reviewed 2014-10-07T12:09:19Z 2014-10-07T12:09:19Z 2009-03 artículo http://purl.org/coar/resource_type/c_6501 Journal of Environmental Engineering 135(6): 426-432 (2009) 0733-9372 http://hdl.handle.net/10261/103002 10.1061/(ASCE)EE.1943-7870.0000009 1943-7870 en Postprint http://dx.doi.org/10.1061/(ASCE)EE.1943-7870.0000009 Sí open American Society of Civil Engineers |
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Carbon dioxide capture Adsorption Waste management Surface chemistry-modification Carbon dioxide capture Adsorption Waste management Surface chemistry-modification González Plaza, Marta Pevida García, Covadonga Arias Rozada, Borja Casal Banciella, María Dolores Fernández Martín, Claudia Fermoso Domínguez, Javier Pis Martínez, José Juan Rubiera González, Fernando Different Approaches for the Development of Low-Cost CO2 Adsorbents |
description |
Different carbon materials were tested as precursors for the production of CO2
adsorbents. The chemical modification of the surface of the prepared adsorbents was
studied by means of three different approaches: impregnation with amines, electrophilic
aromatic substitution and heat treatment in the presence of ammonia. The samples were
chemically characterized and the porous texture was evaluated from the N2 adsorption
isotherms at -196 ºC. The CO2 adsorption capacities of the adsorbents at 25 and 100 ºC
were evaluated in a thermogravimetric analyzer. In general, the incorporation of basic
nitrogen functionalities enhanced the CO2 capture capacities of the modified carbons
but this increase depended on the textural properties of the support and the surface modification methodology. CO2 adsorption capacities of up to 111 mg CO2/ g at room
temperature were attained. All the tested samples were completely regenerated when
subjected to heat treatment at 100 ºC under inert atmosphere. |
format |
artículo |
topic_facet |
Carbon dioxide capture Adsorption Waste management Surface chemistry-modification |
author |
González Plaza, Marta Pevida García, Covadonga Arias Rozada, Borja Casal Banciella, María Dolores Fernández Martín, Claudia Fermoso Domínguez, Javier Pis Martínez, José Juan Rubiera González, Fernando |
author_facet |
González Plaza, Marta Pevida García, Covadonga Arias Rozada, Borja Casal Banciella, María Dolores Fernández Martín, Claudia Fermoso Domínguez, Javier Pis Martínez, José Juan Rubiera González, Fernando |
author_sort |
González Plaza, Marta |
title |
Different Approaches for the Development of Low-Cost CO2 Adsorbents |
title_short |
Different Approaches for the Development of Low-Cost CO2 Adsorbents |
title_full |
Different Approaches for the Development of Low-Cost CO2 Adsorbents |
title_fullStr |
Different Approaches for the Development of Low-Cost CO2 Adsorbents |
title_full_unstemmed |
Different Approaches for the Development of Low-Cost CO2 Adsorbents |
title_sort |
different approaches for the development of low-cost co2 adsorbents |
publisher |
American Society of Civil Engineers |
publishDate |
2009-03 |
url |
http://hdl.handle.net/10261/103002 |
work_keys_str_mv |
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