| abstract |
A spiral type gas separation membrane element having a central tube and a laminate (7) wound around the central tube, the laminate (7) comprising: a supply side flow path member (3), a gas separation membrane (2), and a permeate side flow path member (4) has one or more structures superimposed in this order, the permeation-side flow path member 4 has a thickness of 400 µm to 1300 µm, and the gas separation membrane 2 includes a hydrophilic resin composition layer 20 and a porous structure. The layer 21 and the transmission-side surface layer 22 are films superimposed in this order, and the transmission-side surface layer 22 faces the transmission-side flow path member 4 and has a Young's modulus of 20 MPa to 400 MPa. In-spiral gas separation membrane element. |