Gas separation membrane, method of producing gas separation membrane, gas separation membrane module, and gas separator
US-2017182469-A1 · Jun 29, 2017 · US
Gas separation membrane and gas separation membrane module
US2016354731A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016354731-A1 |
| Application number | US-201615244181-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 23, 2016 |
| Priority date | Feb 28, 2014 |
| Publication date | Dec 8, 2016 |
| Grant date | — |
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Abstract
Official abstract text for this publication.
Provided is a gas separation membrane including a support, a separation layer, and a protective layer in this order, in which the separation layer contains inorganic particles, the protective layer contains a resin and inorganic particles having an average particle diameter of 10 nm or greater which is less than 0.34 times the film thickness of the protective layer, and the content of the inorganic particles contained in the protective layer is 40% by mass or less with respect to the content of the resin contained in the protective layer, the gas separation membrane being capable of being made into a spiral type gas separation membrane module while maintaining high permeability; and a gas separation membrane module which uses the gas separation membrane.
First claim
Opening claim text (preview).
What is claimed is: 1 . A gas separation membrane comprising: a support; a separation layer; and a protective layer in this order, wherein the separation layer contains inorganic particles, the protective layer contains a resin and inorganic particles having an average particle diameter of 10 nm or greater which is less than 0.34 times the film thickness of the protective layer, and the content of the inorganic particles contained in the protective layer is 40% by mass or less with respect to the content of the resin contained in the protective layer. 2 . The gas separation membrane according to claim 1 , wherein the inorganic particles contained in the separation layer are an inorganic molecular sieve. 3 . The gas separation membrane according to claim 1 , wherein the content of the inorganic particles contained in the protective layer is in a range of 1% by mass to 40% by mass with respect to the content of the resin contained in the protective layer. 4 . The gas separation membrane according to claim 1 , wherein the inorganic particles contained in the separation layer are an inorganic molecular sieve. 5 . The gas separation membrane according to claim 1 wherein the film thickness of the protective layer is 1000 nm or less. 6 . The gas separation membrane according to claim 1 , wherein the resin contained in the protective layer is polysiloxane. 7 . The gas separation membrane according to claim 1 wherein the separation layer further includes a resin, and the content of the inorganic particles contained in the separation layer is in a range of 5% by mass to 40% by mass with respect to the content of the resin contained in the separation layer. 8 . The gas separation membrane according to claim 1 , further comprising: a resin layer between the support and the separation layer, wherein the resin layer contains a resin and inorganic particles having an average particle diameter of 10 nm or greater which is less than 0.34 times the film thickness of the resin layer, and the content of the inorganic particles contained in the resin layer is 40% by mass or less with respect to the content of the resin contained in the resin layer. 9 . A gas separation membrane module which uses the gas separation membrane according to claim 1 . 10 . The gas separation membrane module according to claim 9 which is a spiral type gas separation membrane module.
Assignees
Inventors
Classifications
Organic/inorganic mixed matrix membranes · CPC title
characterised by specific membranes · CPC title
- B01D71/70Primary
Polymers having silicon in the main chain, with or without sulfur, nitrogen, oxygen or carbon only · CPC title
Spiral-wound membrane modules · CPC title
- B01D71/701Primary
Polydimethylsiloxane · CPC title
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Frequently asked questions
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- What does patent US2016354731A1 cover?
- Provided is a gas separation membrane including a support, a separation layer, and a protective layer in this order, in which the separation layer contains inorganic particles, the protective layer contains a resin and inorganic particles having an average particle diameter of 10 nm or greater which is less than 0.34 times the film thickness of the protective layer, and the content of the inorg…
- Who is the assignee on this patent?
- Fujifilm Corp
- What technology area does this patent fall under?
- Primary CPC classification B01D71/70. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Dec 08 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).