公开(公告)号：US20190046929A1

公开(公告)日：2019-02-14

申请号：US16073604

申请日：2017-01-27

Applicant: TORAY INDUSTRIES, INC.

Inventor： Hiroho HIROZAWA ,  Keita WADA ,  Satoko MORIOKA ,  Kentaro TAKAGI ,  Hiroyuki YAMADA ,  Kiyoshi MINOURA ,  Hiroshi NAGAI

IPC: B01D63/10 ,  C02F1/44 ,  B01D61/02 ,  B01D65/08

Abstract: The present invention provides a separation membrane element packed with a rugged sheet object, the separation membrane element being effective in attaining both stabilization of steps for producing the separation membrane element and an increase in fresh-water production rate. The present invention relates to a separation membrane element including: a separation membrane; and a permeate-side channel material disposed on a permeate side of the separation membrane, in which the permeate-side channel material is a porous sheet object having a recess and a protrusion on at least one face thereof, the recess being a coarsely porous region and the protrusion being a densely porous region.