Abstract:
A method for manufacturing a complex for carbon dioxide separation, the complex for carbon dioxide separation including a support and a carbon dioxide separation layer on the support, and the method including: applying, on the support, a coating liquid for forming the carbon dioxide separation layer including: a water-absorbing polymer, an alkali metal salt, and a filler having a density lower than a density of the alkali metal salt, a new Mohs hardness of 2 or greater, and a volume average particle diameter that is 30% or less of a thickness of the carbon dioxide separation layer; and drying the coating liquid applied for forming the carbon dioxide separation layer to obtain the carbon dioxide separation layer.
Abstract:
A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin has structure in which a polyimide compound is crosslinked through a specific crosslinking chain, the specific crosslinking chain has at least one kind of linking group selected from the group consisting of —NRaC(═O)—, —NRbC(═O)O—, —CH2OCH2—, —CH2SCH2—, —OC(═O)O—, —C(═O)O−N+(Rc)3—, —SO3−N+(Rd)3— and —PO3−N+(Re)3—, and Ra, Rb, Rc, Rd and Re each independently represent a hydrogen atom or a substituent.
Abstract:
A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin is formed by a polyimide compound being crosslinked by a radically crosslinkable functional group thereof, and a ratio [η] of a crosslinked site to an imide group of the polyimide compound (the number of crosslinked sites/the number of imide groups) in the crosslinked polyimide resin is 0.0001 or more and 0.45 or less; a method of producing the same; and a gas separating module, a gas separation apparatus and a gas separation method using the same.