Membrane process for separating gases from gas-liquid charge streams

Patent · Tue Jan 30 04:00:00 EST 1990

OSTI ID:6915718

Pasternak, M; Beaupre, R F

This patent describes the process for separating a gas from a gas-liquid charge. It comprises maintaining, as a non-porous membrane separating layer, a membrane of the polymeric reaction product of a poly oxyalkylene polyamine and a dissocyanate; passing into contact with the charge side of the membrane a gas-liquid charge; maintaining a pressure drop access the membrane whereby maintaining at least a portion of the gas of the gas-liquid charge passes through the membrane as permeate and the gas-liquid charge is converted to a lean liquid retentate containing less gas than is present in the gas-liquid charge; recovering from the low pressure side of the non-porous membrane separating layer the permeate gas; and recovering from the high pressure side of the non-porous membrane separating layer the lean liquid rentenate containing less gas than is present in the gas-liquid charge.

• Assignee: Texaco Inc., White Plains, NY
• Patent Number(s): A; US 4897091
• Application Number: PPN: US 7176895A
• OSTI ID: 6915718
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
AMINES
CARBONIC ACID DERIVATIVES
CYANATES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
NATURAL GAS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
POLYMERS
SEPARATION PROCESSES