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Layered solid sorbents for carbon dioxide capture

United States Patent

February 25, 2014
View the Complete Patent at the US Patent & Trademark Office
A solid sorbent for the capture and the transport of carbon dioxide gas is provided having at least one first layer of a positively charged material that is polyethylenimine or poly(allylamine hydrochloride), that captures at least a portion of the gas, and at least one second layer of a negatively charged material that is polystyrenesulfonate or poly(acryclic acid), that transports the gas, wherein the second layer of material is in juxtaposition to, attached to, or crosslinked with the first layer for forming at least one bilayer, and a solid substrate support having a porous surface, wherein one or more of the bilayers is/are deposited on the surface of and/or within the solid substrate. A method of preparing and using the solid sorbent is provided.
Li; Bingyun (Morgantown, WV), Jiang; Bingbing (Morgantown, WV), Gray; McMahan L. (Pittsburgh, PA), Fauth; Daniel J. (Pittsburgh, PA), Pennline; Henry W. (Bethel Park, PA), Richards; George A. (Morgantown, WV)
West Virginia University (Morgantown, WV)
13/ 611,651
September 12, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH Certain embodiments of this invention were made with Government support in conjunction with the National Energy Technology Laboratory, Pittsburgh, Pa., under RES contract number DE-FE0004000 awarded by the U.S. Department of Energy. The Government may have certain rights in the invention.