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Closed Access item CO2 capture by adsorption with nitrogen enriched carbons

Authors:González Plaza, Marta
Pevida García, Covadonga
Arenillas de la Puente, Ana
Rubiera González, Fernando
Pis Martínez, José Juan
Keywords:CO2 capture, Sorption, Amine impregnation
Issue Date:2-Jul-2007
Publisher:Elsevier
Citation:Fuel 86(14): 2204-2212 (2007)
Abstract:The success of CO2 capture with solid sorbents is dependent on the development of a low cost sorbent with high CO2 selectivity and adsorption capacity. Immobilised amines are expected to offer the benefits of liquid amines in the typical absorption process, with the added advantages that solids are easy to handle and that they do not give rise to corrosion problems. In this work, different alkylamines were evaluated as a potential source of basic sites for CO2 capture, and a commercial activated carbon was used as a preliminary support in order to study the effect of the impregnation. The amine coating increased the basicity and nitrogen content of the carbon. However, it drastically reduced the microporous volume of the activated carbon, which is chiefly responsible for CO2 physisorption, thus decreasing the capacity of raw carbon at room temperature.
Description:9 pages, 7 figures, 3 tables.-- Printed version published Sep 2007.-- Issue title: The 6th European Conference on Coal Research and its Applications.
Publisher version (URL):http://dx.doi.org/10.1016/j.fuel.2007.06.001
URI:http://hdl.handle.net/10261/10990
ISSN:0016-2361
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