Gas separation by composite solvent-swollen membranes

Patent · Sat Dec 31 23:00:00 EST 1988

OSTI ID:866926

Matson, Stephen L ^[1]; Lee, Eric K. L. ^[2]; Friesen, Dwayne T ^[3]; Kelly, Donald J ^[3]

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1. Harvard, MA
2. Acton, MA
3. Bend, OR

There is disclosed a composite immobulized liquid membrane of a solvent-swollen polymer and a microporous organic or inorganic support, the solvent being at least one highly polar solvent containing at least one nitrogen, oxygen, phosphorous or sulfur atom, and having a boiling point of at least 100.degree. C. and a specified solubility parameter. The solvent or solvent mixture is homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. The membrane is suitable for acid gas scrubbing and oxygen/nitrogen separation.

• Research Organization: Bend Research Inc
• DOE Contract Number: AC03-83ER80035
• Assignee: Bend Research, Inc. (Bend, OR)
• Patent Number(s): US 4824443
• OSTI ID: 866926
• Country of Publication: United States
• Language: English

Related Subjects

/95/96/423/
100
20
95
acid
acid gas
atom
boiling
composite
composite solvent-swollen
containing
degree
disclosed
distributed
gas
gas scrubbing
gas separation
highly
highly polar
homogeneously
homogeneously distributed
immobulized
inorganic
liquid
liquid membrane
membrane
membranes
microporous
mixture
nitrogen
nitrogen separation
organic
organic support
oxygen
parameter
phosphorous
polar
polar solvent
polymer
porous organic
scrubbing
separation
solubility
solubility parameter
solvent
solvent containing
solvent mixture
solvent-swollen
solvent-swollen membranes
solvent-swollen polymer
specified
suitable
sulfur
sulfur atom
support
swollen membrane
weight