Membrane-augmented cryogenic methane/nitrogen separation

Patent · Wed Jan 01 00:00:00 EST 1997

OSTI ID:871047

Lokhandwala, Kaaeid ^[1]

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1. Menlo Park, CA

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.

• Research Organization: Membrane Technology and Research, Inc. (Menlo Park, CA)
• DOE Contract Number: FG03-94ER81809
• Assignee: Membrane Technology and Research, Inc. (Menlo Park, CA)
• Patent Number(s): US 5647227
• Application Number: 08/608707
• OSTI ID: 871047
• Country of Publication: United States
• Language: English

Related Subjects

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/