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Title: Membrane-augmented cryogenic methane/nitrogen separation

A membrane separation process combined with a cryogenic separation process for treating a gas stream containing methane, nitrogen and at least one other component. The membrane separation process works by preferentially permeating methane and the other component and rejecting nitrogen. The process is particularly useful in removing components such as water, carbon dioxide or C.sub.3+ hydrocarbons that might otherwise freeze and plug the cryogenic equipment.
  1. (Menlo Park, CA)
Issue Date:
OSTI Identifier:
Membrane Technology and Research, Inc. (Menlo Park, CA) OAK
Patent Number(s):
US 5647227
Application Number:
Contract Number:
Research Org:
Membrane Technology and Research, Inc. (Menlo Park, CA)
Country of Publication:
United States
membrane-augmented; cryogenic; methane; nitrogen; separation; membrane; process; combined; treating; gas; stream; containing; component; preferentially; permeating; rejecting; particularly; useful; removing; components; water; carbon; dioxide; hydrocarbons; otherwise; freeze; plug; equipment; separation process; carbon dioxide; gas stream; particularly useful; stream containing; membrane separation; nitrogen separation; containing methane; rejecting nitrogen; permeating methane; moving components; preferentially permeating; /62/95/96/