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Gel-coated polymeric solid amine for sorption of carbon dioxide from humid air

Chen, ZW and Chanda, M (2002) Gel-coated polymeric solid amine for sorption of carbon dioxide from humid air. In: Journal of Polymer Materials, 19 (4). pp. 381-387.

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Polyethyleneimine (PEI) cross-linked with glutaraldehyde has been coated on granular silica and on partially hydrolyzed polyacrylonitrile in fiber or fabric form, by a copper-mediated gel-coating process. For carbon dioxide sorption from humid air at the ambient temperature (30degreesC) under static conditions, the gel-coated fiber or fabric,containing 15% resin (w/w on dry basis), exhibits several times higher sorption capacity and initial rate of sorption, as compared to the corresponding gel-coated particulate sorbent. Carbon dioxide can be removed by the wet sorbents from the humid air containing as low as 0.5% CO2. While the equilibrium sorption data on both the particulate and fiber fabric form sorbents fit well to the Freundlich isotherm equation, the initial rate data on both the sorbents show pseudo first order kinetics.

Item Type: Journal Article
Publication: Journal of Polymer Materials
Publisher: A.A.Balkema Publishers
Additional Information: Copyright of this article belongs to A.A.Balkema Publishers.
Keywords: Fast Kinetics;High-Capacity;Silica;Resin.
Department/Centre: Division of Mechanical Sciences > Chemical Engineering
Date Deposited: 22 Jul 2009 12:05
Last Modified: 22 Jul 2009 12:05
URI: http://eprints.iisc.ac.in/id/eprint/16699

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