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Process, including PSA and membrane separation, for separating hydrogen from hydrocarbons

United States Patent

February 6, 2001
View the Complete Patent at the US Patent & Trademark Office
An improved process for separating hydrogen from hydrocarbons. The process includes a pressure swing adsorption step, a compression/cooling step and a membrane separation step. The membrane step relies on achieving a methane/hydrogen selectivity of at least about 2.5 under the conditions of the process.
Baker; Richard W. (Palo Alto, CA), Lokhandwala; Kaaeid A. (Union City, CA), He; Zhenjie (Fremont, CA), Pinnau; Ingo (Palo Alto, CA)
Membrane Technology and Research, Inc. (Menlo Park, CA)
09/ 316,498
May 21, 1999
This invention was made in part with Government support under SBIR award number DE-FG03-98ER82618 awarded by the Department of Energy. The Government has certain rights in this invention.