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.
Abstract:
An acidic gas separation module 10, which improves gas separation efficiency and reduces pressure loss, includes: a permeating gas collecting tube 12 having tube walls in which through holes 12A are formed; a layered body 14 that has at least an acidic gas separation layer 32 and that is wound on the permeating gas collecting tube 12; and telescope prevention plates 18 (a gas supply side 18A and a gas discharge side 18B) provided at both end faces in an axial direction of the wound layered body 14, wherein the ratio (D2/D1) of the open area ratio D2 of the telescope prevention plate on the gas discharge side 18B relative to the open area ratio D1 of the telescope prevention plate on the gas supply side 18A is from 0.5 to 0.9. An acidic gas separation device includes the acidic gas separation module 10.
Abstract:
A gas separation membrane containing a support and a separating layer formed on the support, the separating layer containing a main body and a hydrophilic layer; the main body being disposed on the side of the support; the hydrophilic layer being disposed on the far side of the support and containing a hydrophilic polymer.
Abstract:
A gas separation membrane, containing: a support; and a separating layer formed on the support, the separating layer containing a resin; the separating layer containing, at the side thereof opposite to the support, a hydrophilic modification treatment surface, the hydrophilic modification treatment surface involved in a layer having a film thickness of 0.1 μm or less, and the hydrophilic modification treatment surface provided with a surface contact angle measured by using water thereon in the range of 60 degrees or less.
Abstract:
Provided is a gas separation membrane 10 including a separation layer 1 which comprises a block copolymer having at least a first segment and a second segment, in which the separation layer 1 has a phase separation structure that has at least a first structure 11 derived from the first segment and a spherical second structure 12 derived from the second segment. The gas separation membrane in which the spherical second structure satisfies Formula 1, the first structure and the spherical second structure satisfy the following Formula 2, and the first structure 11 has a structure that is continuous in the thickness direction over the entire thickness of the separation layer 1 has high gas permeability and high gas separation selectivity. Also provided is a gas separation membrane module. R/L
Abstract translation:提供了一种气体分离膜10,其包括分离层1,其包含具有至少第一段和第二区段的嵌段共聚物,其中分离层1具有至少具有衍生自第一区段的第一结构11的相分离结构 第一段和从第二段导出的球形第二结构12。 其中球形第二结构满足式1,第一结构和球形第二结构的气体分离膜满足下式2,并且第一结构11具有在分离的整个厚度上在厚度方向上连续的结构 层1具有高气体渗透性和高气体分离选择性。 还提供了气体分离膜组件。 R / L <0.4式1:Ps / Pf <1式2 :( R表示球形第二结构的平均直径,L表示分离层的厚度,Ps表示第一结构的渗透系数,Pf表示 在这种情况下,Ps和Pf表示在两种气体中第一结构中具有较高渗透系数的气体的渗透系数。)
Abstract:
An acidic gas separation laminate including: a porous support formed by laminating a porous film and an auxiliary support film; an acidic gas separation facilitated transport film; a permeating gas channel member; a sealing unit which is formed by impregnating the porous film, the auxiliary support film, and the gas channel member with an adhesive in the lamination direction thereof along the peripheral edge at a width of 5 mm or greater such that the permeation rate becomes 60% or greater; and a stress buffer unit which is adjacent to the sealing unit, has a permeation rate of the adhesive of less than 60% at least in the porous film, and is formed by impregnating at least the gas channel member with the adhesive.
Abstract:
An acidic gas separation laminate includes a composite film formed of a porous support which is formed by laminating a porous film and an auxiliary support film and an acidic gas separation facilitated transport film which is disposed on the porous film side of the porous support; a permeating gas channel member which is laminated so as to face the auxiliary support film of the porous support and in which acidic gas permeated and passed through the acidic gas separation facilitated transport film flows; and a film protection unit in which an adhesive becomes impregnated into the porous film at an impregnation rate of 10% or greater in the lamination direction of the porous support and the impregnation rate of the adhesive in the auxiliary support film is smaller than the impregnation rate of the adhesive in the porous film.
Abstract:
Provided is an acidic gas separation module 10 which contains: a permeated gas collection tube 12 having through-hole 12As formed on the wall thereof; a layered body 14 in which a feed gas flow path member 30 through which an acidic gas-containing source gas is fed, an acidic gas separation layer 32 that contains a carrier reacting with the acidic gas and a hydrophilic compound supporting the carrier, and a permeated gas flow path member 36 through which the acid gas that has reacted with the carrier and permeated through the acidic gas separation layer 32 flows toward the through-hole 12As are layered; and heat/moisture-resistant adhesive parts 34 and 40 which adhere the both side edges of the acidic gas separation layer 32 and the permeated gas flow path member 36 along the circumferential direction in a state where the layered body 14 is wound in layers on the permeated gas collection tube 12, the adhesive parts 34 and 40 also adhering the circumferential direction edges of the acidic gas separation layer 32 and the permeated gas flow path member 36.
Abstract:
A gas separation composite membrane, containing a gas-permeable supporting layer and a gas separating layer containing a crosslinked polyimide resin over the gas-permeable supporting layer, in which the crosslinked polyimide resin has structure in which a polyimide compound is crosslinked and linked, and the polyimide compound is a copolymer having at least an imide group-containing monomer component and a monomer component having a specific polar group; and a module, a gas separation apparatus and a gas separation method using the same.
Abstract:
A crystalline polymer microporous membrane, which contains a laminate containing two or more layers and a plurality of pores piercing through the laminate in a thickness direction thereof, where the two or more layers include a layer containing a first crystalline polymer, and a layer containing a second crystalline polymer stacked to form the laminate, wherein the first crystalline polymer has a higher melting point than a melting point of the second crystalline polymer, wherein at least the layer containing the second crystalline polymer in the laminate has a microstructure containing at least fibrils having an average long axial length of 1 μm or shorter, and wherein at least one of the layers constituting the laminate has a plurality of pores whose average pore diameter is constant without any variation at least at part along a thickness direction of the laminate.