Separation membrane sheet, separation membrane element, separation membrane module, and manufacturing method for separation membrane sheet
AssigneeSumitomo Chemical Company, Limited
InventorsShohei Kasahara, Kosuke Makiguchi
Life of this patent
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Abstract
A separation membrane sheet that causes a specific fluid component to selectively permeate therethrough, comprises: a first porous layer; and a resin composition layer formed on the first porous layer. The resin composition layer has a filtration residue fraction of greater than or equal to 20% and less than or equal to 90%; and contains a resin having an ionic group or a salt thereof, and has an ion exchange capacity of greater than or equal to 1 millimole equivalent per 1 g of a dry resin in a filtration residue.
Claims21
A separation membrane sheet that causes an acidic gas component to selectively permeate therethrough,
- the separation membrane sheet comprising:
- a first porous layer;
- and
- a resin composition layer formed on the first porous layer,
- wherein:
- the resin composition layer has a filtration residue fraction of greater than or equal to 20% and less than or equal to 90%;
- and
- contains a resin having an ionic group or a salt thereof, and has an ion exchange capacity of greater than or equal to 1 millimole equivalent per 1 g of a dry resin in a filtration residue.
A manufacturing method for a separation membrane sheet that causes an acidic gas to selectively permeate therethrough,
- the method comprising forming a resin composition layer on a first porous layer,
- wherein the forming the resin composition layer comprises irradiating an application layer formed on the first porous layer with an electron beam having an irradiation amount of greater than or equal to 10 kGy and less than 1000 kGy;
- and
- the resin composition layer has a filtration residue fraction of greater than or equal to 20% and less than or equal to 90%, and
- the resin composition layer comprises a resin having an ionic group or a salt thereof, and an ionic exchange capacity of greater than or equal to 1 millimole equivalent per 1 g of a dry resin in a filtration residue.
Dependencies are inferred from the claim text.