SEPARATION MEMBRANE FOR TREATING ACID GAS-CONTAINING GAS, AND METHOD FOR MANUFACTURING SEPARATION MEMBRANE FOR TREATING ACID GAS-CONTAINING GAS

摘要

Provided is a separation membrane for treating an acidic gas-containing gas, with which it is possible to optimize an intermediate layer provided to a support, and to treat a mixed gas containing an acidic gas and methane gas and/or nitrogen gas to separate these into individual gas components, and efficiently obtain an acidic gas and methane gas and/or nitrogen gas. The membrane is provided with an inorganic porous support, an intermediate layer including a polysiloxane network structure formed on the surface of the inorganic porous support, and a separation layer including a hydrocarbon group-containing polysiloxane network structure formed on the intermediate layer.