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CO2 capture by adsorption with nitrogen enriched carbons

AutorGonzález Plaza, Marta ; Pevida García, Covadonga ; Arenillas de la Puente, Ana ; Rubiera González, Fernando ; Pis Martínez, José Juan
Palabras claveCO2 capture
Amine impregnation
Fecha de publicación2-jul-2007
CitaciónFuel 86(14): 2204-2212 (2007)
ResumenThe 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.
Descripción9 pages, 7 figures, 3 tables.-- Printed version published Sep 2007.-- Issue title: The 6th European Conference on Coal Research and its Applications.
Versión del editorhttp://dx.doi.org/10.1016/j.fuel.2007.06.001
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