Acid gas scrubbing by composite solvent-swollen membranes

Patent · Tue Apr 12 00:00:00 EDT 1988

OSTI ID:7078877

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

A composite immobilized liquid membrane suitable for acid gas scrubbing is disclosed. The membrane is a solvent-swollen polymer and a microporous polymeric support, the solvent being selected from a class of highly polar solvents containing at least one atom selected from nitrogen, oxygen, phosphorus and sulfur, and having a boiling point of at least 100 C and a solubility parameter of from about 7.5 to about 13.5 (cal/cm[sup 3]-atm)[sup 1/2]. Such solvents are homogeneously distributed through the solvent-swollen polymer from 20% to 95% by weight. Also disclosed are methods of acid gas scrubbing of high- and low-Btu gas effluents with such solvent-swollen membranes. 3 figs.

• Research Organization: Bend Research Inc
• DOE Contract Number: AC03-83ER80035
• Assignee: Bend Research, Inc., OR (United States)
• Patent Number(s): US 4737166; A
• Application Number: PPN: US 6-947996
• OSTI ID: 7078877
• Resource Relation: Patent File Date: 30 Dec 1986
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
03 NATURAL GAS
CARBON DIOXIDE
MEMBRANE TRANSPORT
HIGH BTU GAS
SCRUBBING
HYDROGEN SULFIDES
LOW BTU GAS
SUPPORTED LIQUID MEMBRANES
DESIGN
SOLVENT PROPERTIES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROGEN COMPOUNDS
MEMBRANES
OXIDES
OXYGEN COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
030300 - Natural Gas- Drilling
Production
& Processing