High capacity immobilized amine sorbents
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United States of America Patent
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Oct 30, 2007
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app pub date -
Jan 13, 2005
filing date -
Jan 13, 2005
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Abstract
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.
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