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Title: Methane/nitrogen separation process

Abstract

A membrane separation process is described for treating a gas stream containing methane and nitrogen, for example, natural gas. The separation process works by preferentially permeating methane and rejecting nitrogen. The authors have found that the process is able to meet natural gas pipeline specifications for nitrogen, with acceptably small methane loss, so long as the membrane can exhibit a methane/nitrogen selectivity of about 4, 5 or more. This selectivity can be achieved with some rubbery and super-glassy membranes at low temperatures. The process can also be used for separating ethylene from nitrogen. 11 figs.

Inventors:
; ; ;
Issue Date:
Research Org.:
Membrane Technology and Research, Inc
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
541738
Patent Number(s):
5,669,958
Application Number:
PAN: 8-608,743
Assignee:
Membrane Technology and Research, Inc., Menlo Park, CA (United States) PTO; SCA: 030300; PA: EDB-97:140745; SN: 97001865626
DOE Contract Number:  
FG03-94ER81809
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 23 Sep 1997
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; METHANE; MEMBRANE TRANSPORT; ETHYLENE; NITROGEN; REMOVAL; NATURAL GAS; MEMBRANES

Citation Formats

Baker, R.W., Lokhandwala, K.A., Pinnau, I., and Segelke, S. Methane/nitrogen separation process. United States: N. p., 1997. Web.
Baker, R.W., Lokhandwala, K.A., Pinnau, I., & Segelke, S. Methane/nitrogen separation process. United States.
Baker, R.W., Lokhandwala, K.A., Pinnau, I., and Segelke, S. Tue . "Methane/nitrogen separation process". United States.
@article{osti_541738,
title = {Methane/nitrogen separation process},
author = {Baker, R.W. and Lokhandwala, K.A. and Pinnau, I. and Segelke, S.},
abstractNote = {A membrane separation process is described for treating a gas stream containing methane and nitrogen, for example, natural gas. The separation process works by preferentially permeating methane and rejecting nitrogen. The authors have found that the process is able to meet natural gas pipeline specifications for nitrogen, with acceptably small methane loss, so long as the membrane can exhibit a methane/nitrogen selectivity of about 4, 5 or more. This selectivity can be achieved with some rubbery and super-glassy membranes at low temperatures. The process can also be used for separating ethylene from nitrogen. 11 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {9}
}