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Nanostructured carbon materials for adsorption of methane and other gases

United States Patent

June 30, 2015
View the Complete Patent at the US Patent & Trademark Office
Provided are methods for storing gases on porous adsorbents, methods for optimizing the storage of gases on porous adsorbents, methods of making porous adsorbents, and methods of gas storage of optimized compositions, as in systems containing porous adsorbents and gas adsorbed on the surface of the porous adsorbent. The disclosed methods and systems feature a constant or increasing isosteric enthalpy of adsorption as a function of uptake of the gas onto the exposed surface of a porous adsorbent. Adsorbents with a porous geometry and surface dimensions suited to a particular adsorbate are exposed to the gas at elevated pressures in the specific regime where n/V (density) is larger than predicted by the ideal gas law by more than several percent.
Stadie; Nicholas P. (Pasadena, CA), Fultz; Brent T (Pasadena, CA), Ahn; Channing (Pasadena, CA), Murialdo; Maxwell (Westminster, CA)
California Institute of Technology (Pasadena, CA)
14/ 050,755
October 10, 2013
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under Grant No. DE-SG0001057/T-105949 awarded by the Department of Energy. The government has certain rights in the invention.