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Title: Substituted polyacetylene separation membrane

Abstract

A separation membrane is described which is useful for gas separation, particularly separation of C{sub 2+} hydrocarbons from natural gas. The invention encompasses the membrane itself, methods of making it and processes for using it. The membrane comprises a polymer having repeating units of a hydrocarbon-based, disubstituted polyacetylene, having the general formula shown in the accompanying diagram, wherein R{sub 1} is chosen from the group consisting of C{sub 1}-C{sub 4} alkyl and phenyl, and wherein R{sub 2} is chosen from the group consisting of hydrogen and phenyl. In the most preferred embodiment, the membrane comprises poly(4-methyl-2-pentyne) [PMP]. The membrane exhibits good chemical resistance and has super-glassy properties with regard to separating certain large, condensable permeant species from smaller, less-condensable permeant species. The membranes may also be useful in other fluid separations. 4 figs.

Inventors:
;
Issue Date:
Research Org.:
Membrane Technology and Research, Inc
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
570515
Patent Number(s):
5707423
Application Number:
PAN: 8-663,906
Assignee:
Membrane Technology and Research, Inc., Menlo Park, CA (United States)
DOE Contract Number:  
FG03-94ER81811
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 13 Jan 1998
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; NATURAL GAS; MEMBRANES; SEPARATION PROCESSES; FABRICATION; POLYACETYLENES; CORROSION RESISTANCE; ETHANE; PROPANE; MATERIALS RECOVERY

Citation Formats

Pinnau, I, and Morisato, Atsushi. Substituted polyacetylene separation membrane. United States: N. p., 1998. Web.
Pinnau, I, & Morisato, Atsushi. Substituted polyacetylene separation membrane. United States.
Pinnau, I, and Morisato, Atsushi. Tue . "Substituted polyacetylene separation membrane". United States.
@article{osti_570515,
title = {Substituted polyacetylene separation membrane},
author = {Pinnau, I and Morisato, Atsushi},
abstractNote = {A separation membrane is described which is useful for gas separation, particularly separation of C{sub 2+} hydrocarbons from natural gas. The invention encompasses the membrane itself, methods of making it and processes for using it. The membrane comprises a polymer having repeating units of a hydrocarbon-based, disubstituted polyacetylene, having the general formula shown in the accompanying diagram, wherein R{sub 1} is chosen from the group consisting of C{sub 1}-C{sub 4} alkyl and phenyl, and wherein R{sub 2} is chosen from the group consisting of hydrogen and phenyl. In the most preferred embodiment, the membrane comprises poly(4-methyl-2-pentyne) [PMP]. The membrane exhibits good chemical resistance and has super-glassy properties with regard to separating certain large, condensable permeant species from smaller, less-condensable permeant species. The membranes may also be useful in other fluid separations. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}