04597777 is referenced by 44 patents and cites 7 patents.

This invention relates to membrane gas separation of carbon dioxide and methane containing gas mixtures. More particularly the invention relates to apparatus and processes for recovering a methane-enriched non-permeate gas of natural gas pipe line quality from mixtures of carbon dioxide and methane where membrane permeate gases contain substantially all of the carbon dioxide of the feed gas mixture. An aspect of the process of this invention is that a significant portion of the carbon dioxide containing permeate gas can be utilized as combustion engine fuel to drive feed gas compressors utilized in the process.

Title
Membrane gas separation processes
Application Number
6/466686
Publication Number
4597777
Application Date
February 15, 1983
Publication Date
July 1, 1986
Inventor
Tommy E Graham
Raleigh
NC, US
Agent
H Croskell
Assignee
Monsanto Company
MO, US
IPC
B01D 53/22
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