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Membrane-augmented cryogenic methane/nitrogen separation

Patent ·
OSTI ID:871047
 [1]
  1. Menlo Park, CA
+ Show Author Affiliations

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

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Related Subjects

/62/95/96/
carbon
carbon dioxide
combined
component
components
containing
containing methane
cryogenic
dioxide
equipment
freeze
gas
gas stream
hydrocarbons
membrane
membrane separation
membrane-augmented
methane
moving components
nitrogen
nitrogen separation
otherwise
particularly
particularly useful
permeating
permeating methane
plug
preferentially
preferentially permeating
process
rejecting
rejecting nitrogen
removing
separation
separation process
stream
stream containing
treating
useful
water