METHOD FOR USING A CO2-FACILITATED TRANSPORT MEMBRANE TO REMOVE CARBON DIOXIDE FROM A GAS

摘要

A method of removing CO2 from a gas is provided, comprising bringing a CO2-facilitated transport membrane, which has CO2/H2 selectivity, into contact with a gas. The CO2-facilitated transport membrane is formed such that a gel layer is supported by a hydrophilic porous membrane, and the gel layer is obtained by adding at least one of cesium carbonate, cesium bicarbonate and cesium hydroxide, or at least one of rubidium carbonate, rubidium bicarbonate and rubidium hydroxide, to a gel membrane. Preferably, the gel membrane is a polyvinyl alcohol-polyacrylic acid copolymer gel membrane.