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Process and apparatus for the production of hydrogen by steam reforming of hydrocarbon

United States Patent

6,103,143
August 15, 2000
View the Complete Patent at the US Patent & Trademark Office
In the steam reforming of hydrocarbon, particularly methane, under elevated temperature and pressure to produce hydrogen, a feed of steam and hydrocarbon is fed into a first reaction volume containing essentially only reforming catalyst to partially reform the feed. The balance of the feed and the reaction products of carbon dioxide and hydrogen are then fed into a second reaction volume containing a mixture of catalyst and adsorbent which removes the carbon dioxide from the reaction zone as it is formed. The process is conducted in a cycle which includes these reactions followed by countercurrent depressurization and purge of the adsorbent to regenerate it and repressurization of the reaction volumes preparatory to repeating the reaction-sorption phase of the cycle.
Sircar; Shivaji (Wescosville, PA), Hufton; Jeffrey Raymond (Fogelsville, PA), Nataraj; Shankar (Allentown, PA)
Air Products and Chemicals, Inc. (Allentown, PA)
09/ 225,803
January 5, 1999
RIGHTS OF THE UNITED STATES GOVERNMENT The subject matter presented in this patent application was funded in part by the United States Department of Energy (DOE) under Cooperative Agreement No. DE-FC36-95G010059. The DOE may possess certain rights under the claims presented.