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Methods for applying microchannels to separate methane using liquid absorbents, especially ionic liquid absorbents from a mixture comprising methane and nitrogen

United States Patent

October 4, 2011
View the Complete Patent at the US Patent & Trademark Office
Methods of using microchannel separation systems including absorbents to improve thermal efficiency and reduce parasitic power loss. Energy is typically added to desorb methane and then energy or heat is removed to absorb methane using a working solution. The working solution or absorbent may comprise an ionic liquid, or other fluids that demonstrate a difference in affinity between methane and nitrogen in a solution.
Tonkovich; Anna Lee Y. (Dublin, OH), Litt; Robert D. (Westerville, OH), Dongming; Qiu (Dublin, OH), Silva; Laura J. (Plain City, OH), Lamont; Micheal Jay (Plain City, OH), Fanelli; Maddalena (Plain City, OH), Simmons; Wayne W. (Plain city, OH), Perry; Steven (Galloway, OH)
Velocys, Inc. (Plain City, OH)
12/ 184,843
August 1, 2008
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with Government support under Contract DE-FC26-03NT41905 awarded by the United States Department of Energy. The Government has certain rights in this invention.