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High capacity immobilized amine sorbents

United States Patent

October 30, 2007
View the Complete Patent at the US Patent & Trademark Office
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A method is provided for making low-cost CO.sub.2 sorbents that can be used in large-scale gas-solid processes. The improved method entails treating an amine to increase the number of secondary amine groups and impregnating the amine in a porous solid support. The method increases the CO.sub.2 capture capacity and decreases the cost of utilizing an amine-enriched solid sorbent in CO.sub.2 capture systems.
Gray; McMahan L. (Pittsburgh, PA), Champagne; Kenneth J. (Fredericktown, PA), Soong; Yee (Monroeville, PA), Filburn; Thomas (Granby, CT)
United States of America Department of Energy (Washington, DC)
11/ 034,008
January 13, 2005
CONTRACTUAL ORIGIN OF INVENTION The United States Government has rights in this invention through an employer-employee relationship between the U.S. Department of Energy and The National Energy Technology Laboratory.