Abstract: The present invention aims to improve the separation selectivity for light gases such as hydrogen and helium. The gas separation membrane according to the present invention includes a porous support layer and a separation functional layer containing a cross-linked polyamide and laid on the porous support layer, wherein: the separation functional layer has a protuberance structure containing a plurality of protrusions and recesses; randomly selected 20 of the protrusions on the surface of the separation functional layer indented under a load of 3 nN and observed in pure water at 25° C. by atomic force microscopy give an average deformation of 5.0 nm or more and 10.0 nm or less; and they give a standard deviation of the deformation of 5.0 nm or less.

Abstract: A gas separation membrane module includes a center pipe; a plurality of separation membranes each having a feed surface and a permeate surface, the separation membranes arranged such that the feed surfaces face each other and the permeate surfaces face each other; a feed channel material arranged between the feed surfaces; and a permeate channel material arranged between the permeate surfaces, wherein the separation membranes, the feed channel material, and the permeate channel material are wound around the center pipe, an average pore size on a front surface and an average pore size on a back surface of the feed channel material are each 0.95 mm or less, and an average pore size on a front surface and an averaged pore size on a back surface of the permeate channel material are each 0.95 mm or less.

Abstract: A power generation system, includes: a fuel cell that includes a negative electrode and a positive electrode and is configured to generate electric power by chemical reaction between hydrogen and oxygen; a separator that includes a hydrogen-permselective separation membrane and is configured to obtain permeated gas and non-permeated gas from mixed gas; and a negative electrode gas supply passage configured to supply the mixed gas containing hydrogen to the separator and supply the permeated gas obtained by the separator to the negative electrode. The separation membrane includes a porous support layer and a separation functional layer provided on the porous support layer. The separation functional layer contains at least one kind of chemical compound selected from the group consisting of polyamide, graphene, MOF (Metal Organic Framework), and COF (Covalent Organic Framework).

Abstract: A power generation system, includes: a fuel cell that includes a negative electrode supplied with hydrogen-containing gas and a positive electrode supplied with oxygen-containing gas, and is configured to generate electric power by chemical reaction between hydrogen and oxygen; a separator that includes a hydrogen-permselective separation membrane and is configured to obtain permeated gas and non-permeated gas from mixed gas; and a circulating passage through which negative electrode-side exhaust gas of the fuel cell is sent to the separator, and through which the permeated gas is supplied to the negative electrode. The separation membrane includes a porous support layer and a separation functional layer provided on the porous support layer. The separation functional layer contains at least one kind of chemical compound selected from the group consisting of polyamide, graphene, MOF (Metal Organic Framework), and COF (Covalent Organic Framework).

Abstract: A power generation system, includes: a fuel cell that includes a negative electrode and a positive electrode and is configured to generate electric power by chemical reaction between hydrogen and oxygen; a separator that includes an oxygen-permselective separation membrane and is configured to obtain permeated gas and non-permeated gas from mixed gas; and a positive electrode gas supply passage through which the mixed gas is supplied to the separator and the obtained permeated gas is supplied to the positive electrode. The separation membrane includes a porous support layer and a separation functional layer provided on the porous support layer. The separation functional layer contains at least one kind of chemical compound selected from the group consisting of polyamide, graphene, MOF (Metal Organic Framework), and COF (Covalent Organic Framework).