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.

公开(公告)号：US20190126207A1

公开(公告)日：2019-05-02

申请号：US16092975

申请日：2017-04-24

Applicant: TORAY INDUSTRIES, INC.

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

IPC: B01D63/10 ,  C02F1/44

Abstract: 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, wherein the permeate-side channel material is a rugged sheet object having a recess and a protrusion on at least one face thereof, the rugged sheet object is composed of a porous region formed of a through-hole in a thickness direction of the rugged sheet and a non-porous region other than the porous region, and a rate of a number of the through-hole in the recess of the rugged sheet object to a total number of the through-hole present in the rugged sheet object is 80% or more.