▎ 摘　　要

NOVELTY - A membrane comprises a support layer, and a selective polymer layer arranged on the support layer, and comprising a selective polymer matrix and graphene oxide dispersed within the selective polymer matrix. USE - Membrane in the form of flat sheet, spiral-wound, hollow fiber, and plate-and-frame configuration used for separating gas from feed gas stream such as hydrogen, carbon dioxide, hydrogen sulfide, hydrogen chloride, carbon monoxide, nitrogen, methane, steam, sulfur oxides, nitrogen oxides and syngas (all claimed) for producing electricity through gas turbine or fuel cell. ADVANTAGE - The membrane has excellent selective membrane performance in the syngas separation modality. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) separation of gas (A) from a feed gas stream; and (2) formation of membrane.