公开(公告)号：US11911725B2

公开(公告)日：2024-02-27

申请号：US17598437

申请日：2020-03-12

Applicant: NITTO DENKO CORPORATION

Inventor： Kazuya Yoshimura ,  Daiki Iwasaki ,  Naomichi Kimura ,  Shinya Nishiyama

IPC: B01D53/22 ,  B01D69/14 ,  B01D71/02 ,  B01D71/70 ,  B01D71/52 ,  B01D69/12 ,  B82Y30/00

CPC classification number: B01D53/228 ,  B01D69/1218 ,  B01D69/148 ,  B01D69/14111 ,  B01D71/021 ,  B01D71/027 ,  B01D71/5211 ,  B01D71/5222 ,  B01D71/701 ,  B01D2257/504 ,  B82Y30/00

Abstract: The present invention provides a separation membrane that is suitable for separating an acid gas from a gas mixture containing the acid gas and has a high acid gas permeability. A separation membrane (10) of the present invention includes: a separation functional layer (1); a porous support member (3) supporting the separation functional layer (1); and an intermediate layer (2) disposed between the separation functional layer (1) and the porous support member (3), and including a matrix (4) and nanoparticles (5) dispersed in the matrix (4).