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Process, including membrane separation, for separating hydrogen from hydrocarbons

United States Patent

6,264,828
July 24, 2001
View the Complete Patent at the US Patent & Trademark Office
Processes for providing improved methane removal and hydrogen reuse in reactors, particularly in refineries and petrochemical plants. The improved methane removal is achieved by selective purging, by passing gases in the reactor recycle loop across membranes selective in favor of methane over hydrogen, and capable of exhibiting a methane/hydrogen selectivity of at least about 2.5 under the process conditions.
Baker; Richard W. (Palo Alto, CA), Lokhandwala; Kaaeid A. (Union City, CA), He; Zhenjie (Fremont, CA), Pinnau; Ingo (Palo Alto, CA)
Membrane Tehnology and Research, Inc. (Menlo Park, CA)
09/ 317,106
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.