Acidic-gas separation module

Patent metadata

Field	Value
Publication number	US-2016151740-A1
Application number	US-201615015726-A
Country	US
Kind code	A1
Filing date	Feb 4, 2016
Priority date	Aug 19, 2013
Publication date	Jun 2, 2016
Grant date	—

Abstract

In a spiral type acidic-gas separation module which is obtained by winding a laminate including an acidic gas separation layer that includes a facilitated transport film, a permeating gas channel member which includes a channel regulation member regulating an acidic gas channel that is a channel of an acidic gas having permeated through the facilitated transport film allows a difference in high-pressure deformation amount between a region where the channel regulation member is formed and a region other than the region to be set to 100 μm or less. In this manner, an acidic-gas separation module which prevents damage to the facilitated transport film and exhibits a predetermined performance for a long period of time is provided.

First claim

What is claimed is:

1 . An acidic-gas separation module comprising:
a central tube in a tube wall of which through-holes are formed; a supply gas channel member which becomes a channel of raw material gas; an acidic gas separation layer which separates acidic gas from raw material gas flowing in the supply gas channel member and includes a facilitated transport film that contains a carrier reacting with the acidic gas and a hydrophilic compound for carrying the carrier, and a porous support that supports the facilitated transport film; and a permeating gas channel member which is a channel in which the acidic gas having permeated through the acidic gas separation layer flows into the central tube, and is provided with a channel regulation member that regulates an acidic gas channel in the inside, and in which a difference in high-pressure deformation amount between a position at which the channel regulation member is formed and a position other than such a position is 100 μm or less, wherein at least one laminate including the supply gas channel member, the acidic gas separation layer, and the permeating gas channel member is wound around the central tube.

2 . The acidic-gas separation module according to claim 1 , wherein the permeating gas channel member is formed of any one of ceramic, glass, carbon, polyphenylene sulfide, and modified polypropylene.

3 . The acidic-gas separation module according to claim 1 , wherein the thickness of the permeating gas channel member is 600 μm or less.

4 . The acidic-gas separation module according to claim 1 ,
wherein the permeating gas channel member is woven fabric, and fibers extending in the same direction as the direction in which the permeating gas channel member is formed are laminated on each other in a thickness direction.

5 . The acidic-gas separation module according to claim 1 ,
wherein the laminate includes a pinching body formed by folding the acidic gas separation layer into two and interposing the supply gas channel member between the acidic gas separation layers and has a structure obtained by laminating the permeating gas channel member on the pinching body.

6 . The acidic-gas separation module according to claim 1 , wherein the channel regulation member is formed to have a rectangular shape in which a side of the central tube is open in the plane direction of the permeating gas channel member.

7 . The acidic-gas separation module according to claim 1 , wherein the acidic gas is separated from the raw material gas containing moisture under a temperature condition of 50° C. or higher.

8 . The acidic-gas separation module according to claim 1 , further comprising a hydrophobic intermediate layer having gas permeability between the porous support and the facilitated transport film.

9 . The acidic-gas separation module according to claim 8 , wherein the intermediate layer is a silicone resin layer.

10 . The acidic-gas separation module according to claim 1 , wherein the facilitated transport film contains at least one metal element selected from a group consisting of Ti, Zr, Al, Si, and Zn.

11 . The acidic-gas separation module according to claim 10 , wherein the content of the metal element in the facilitated transport film is in a range of 0.1% by mass to 50% by mass with respect to the total mass of the hydrophilic compound.

12 . The acidic-gas separation module according to claim 10 , wherein the facilitated transport film contains a structural unit represented by Formula (1):
M-(O—*) m   Formula (1)
M represents a metal element selected from the group consisting of Ti, Zr, Al, Si, and Zn, m represents the valence of the metal element represented by M, and the symbol “*” represents a binding site.

Assignees

• Fujifilm Corp

Inventors

• Ouchi Ryo
• Sawada Makoto
• Hiraki Daisuke
• Narita Takeshi
• Ishizuka Kenichi

Classifications

• B01D53/228 Primary

  characterised by specific membranes · CPC title

• B01D2053/221

  Devices · CPC title

• B01D71/021

  Carbon · CPC title

• B01D63/10

  Spiral-wound membrane modules · CPC title

• B01D2257/504

  Carbon dioxide · CPC title