Gas separation by composite solvent-swollen membranes

Patent · Tue Apr 25 00:00:00 EDT 1989

OSTI ID:7073867

Matson, S L; Lee, E K.L.; Friesen, D T; Kelly, D J

There is disclosed a composite immobilized 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, phosphorus or sulfur atom, and having a boiling point of at least 100 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. 3 figs.

• Research Organization: Bend Research Inc
• DOE Contract Number: AC03-83ER80035
• Assignee: Bend Research, Inc., OR (United States)
• Patent Number(s): US 4824443; A
• Application Number: PPN: US 7-178452
• OSTI ID: 7073867
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
DESIGN
FLUIDS
GASES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MEMBRANES
ORGANIC SOLVENTS
OXIDES
OXYGEN COMPOUNDS
REMOVAL
SCRUBBING
SEPARATION PROCESSES
SOLVENTS
SULFIDES
SULFUR COMPOUNDS
SUPPORTED LIQUID MEMBRANES