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Title: Membrane-augmented cryogenic methane/nitrogen separation

Abstract

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.

Inventors:
 [1]
  1. Menlo Park, CA
Issue Date:
Research Org.:
Membrane Technology and Research, Inc. (Menlo Park, CA)
OSTI Identifier:
871047
Patent Number(s):
5647227
Application Number:
08/608707
Assignee:
Membrane Technology and Research, Inc. (Menlo Park, CA)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25J - LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS {OR LIQUEFIED GASEOUS} MIXTURES BY PRESSURE AND COLD TREATMENT {OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
FG03-94ER81809
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Lokhandwala, Kaaeid. Membrane-augmented cryogenic methane/nitrogen separation. United States: N. p., 1997. Web.
Lokhandwala, Kaaeid. Membrane-augmented cryogenic methane/nitrogen separation. United States.
Lokhandwala, Kaaeid. Wed . "Membrane-augmented cryogenic methane/nitrogen separation". United States. https://www.osti.gov/servlets/purl/871047.
@article{osti_871047,
title = {Membrane-augmented cryogenic methane/nitrogen separation},
author = {Lokhandwala, Kaaeid},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

Patent:

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