Membranes for natural gas sweetening and CO/sub 2/ enrichment

Journal Article · Fri Oct 01 00:00:00 EDT 1982 · Chem. Eng. Prog.; (United States)

OSTI ID:6130695

Mazur, W H; Chan, M C

Describes how the Gasep membrane, which has been field tested for sweetening natural gas, can also be used for enhanced oil recovery and oxygen enrichment. The cellulose acetate membrane is produced in flat sheet form and to retain its asymmetric character the membrane is heat-treated and dried by proprietary techniques. This produces a highly selective, dense, active layer with a thick porous support layer having high mechanical stability to withstand high feed gas pressures and high pressure differentials. The membrane is then incorporated into spiral-wound elements similar to those for reverse osmosis applications. Enhanced oil-recovery membrane separation technology is finding increasing application in programs where the ability to recycle CO/sub 2/ for re-injection offers substantial savings compared to the purchased CO/sub 2/. Advantages of gas separation utilizing Gasep membrane technology include: reduced capital costs; low operating costs with minimal operator attention or maintenance; short delivery lead times; reduction in process heat or fuel requirements; compact low weight skid design for quick delivery, minimal space requirements, economic installation, and easy start-up; and readily scaleable systems to respond to changes in feed conditions.

• Research Organization: Envirogenics Systems Co, El Monte, CA 91731
• OSTI ID: 6130695
• Journal Information: Chem. Eng. Prog.; (United States), Vol. 78:10
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
NATURAL GAS
SEPARATION EQUIPMENT
CAPITALIZED COST
CARBON DIOXIDE
INDUSTRY
OPERATING COST
POLYMERIZATION
PURIFICATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COST
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
OXIDES
OXYGEN COMPOUNDS
030300* - Natural Gas- Drilling
Production
& Processing