Gas separation membrane element, gas separation membrane module and gas separation apparatus
AssigneeSumitomo Chemical Company, Limited
InventorsTsutomu TASAKI, Shinichi FURUKAWA
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Abstract
The gas separation membrane element contains a gas separation membrane, and a sealing portion for preventing mixture of a source gas and a specific gas permeated through a gas separation membrane. The gas separation membrane has a first porous layer including a porous membrane, and a hydrophilic resin composition layer disposed on the first porous layer. The sealing portion is a region in which a cured material of a sealant penetrates in at least the first porous layer in the gas separation membrane, and a thermal expansion coefficient A of the sealing portion and a thermal expansion coefficient B of a material forming the first porous layer satisfy a relation (I): 0.35≤A/B≤1.0 (I).
Claims12
A gas separation membrane element which separates a specific gas from a source gas containing the specific gas, the gas separation membrane element comprising:
- a gas separation membrane;
- and
- a sealing portion for preventing mixture of the source gas and the specific gas permeated through the gas separation membrane,
- the gas separation membrane including
- a first porous layer including a porous membrane, and
- a hydrophilic resin composition layer selectively permeating the specific gas contained in the source gas,
- the hydrophilic resin composition layer being disposed on the first porous layer,
- the sealing portion being a region in which a cured material of a sealant penetrates in at least the first porous layer,
- a thermal expansion coefficient A of the sealing portion and a thermal expansion coefficient B of a material forming the first porous layer satisfying a relation (I):
- 0.35≤A/B≤1.0 (I).
A method for manufacturing a gas separation membrane element which separates a specific gas from a source gas containing the specific gas, the method comprising:
- preparing a gas separation membrane including
- a first porous layer including a porous membrane, and
- a hydrophilic resin composition layer selectively permeating the specific gas contained in the source gas, the hydrophilic resin composition layer being disposed on the first porous layer;
- and
- forming a sealing portion for preventing mixture of the source gas and the specific gas permeated through the gas separation membrane, by causing a sealant to be penetrated and cured in at least the first porous layer,
- a thermal expansion coefficient A of the sealing portion and a thermal expansion coefficient B of a material forming the first porous layer satisfying a relation (I):
- 0.35≤A/B≤1.0 (I).
Dependencies are inferred from the claim text.