04869894 is referenced by 63 patents and cites 11 patents.

High yields of hydrogen of high purity are obtained from a methane-rich gas stream, such as natural gas, by a particular combination of operations wherein the methane-rich gas undergoes primary steam reforming under less severe operating conditions including lower steam to carbon ratio, supplemented by secondary reforming with oxygen, the obtained hydrogen is separated from accompanying carbon dioxide in the reformer effluent by a special five step pressure swing adsorption sequence having the steps of selective CO.sub.2 adsorption at superatmospheric pressure, rinsing with desorbed carbon dioxide, depressuring and then evacuating without additional rinsing, followed by repressuring the bed with part of the recovered pure hydrogen.

Title
Hydrogen generation and recovery
Application Number
7/38819
Publication Number
4869894
Application Date
April 15, 1987
Publication Date
September 26, 1989
Inventor
William R Koch
Fleetwood
PA, US
Shoou I Wang
Allentown
PA, US
Agent
William F Marsh
Keith D Gourley
James C Simmons
Assignee
Air Products and Chemicals
PA, US
IPC
C01B 1/13
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