Gas prepurification process
US-9221008-B2 · Dec 29, 2015 · US
Separation of a target substance from a fluid or mixture using encapsulated sorbents
US11117091B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11117091-B2 |
| Application number | US-201816036411-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 16, 2018 |
| Priority date | Feb 18, 2011 |
| Publication date | Sep 14, 2021 |
| Grant date | Sep 14, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Method and apparatus for separating a target substance from a fluid or mixture. Capsules having a coating and stripping solvents encapsulated in the capsules are provided. The coating is permeable to the target substance. The capsules having a coating and stripping solvents encapsulated in the capsules are exposed to the fluid or mixture. The target substance migrates through the coating and is taken up by the stripping solvents. The target substance is separated from the fluid or mixture by driving off the target substance from the capsules.
First claim
Opening claim text (preview).
The invention claimed is: 1. A capsule for separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from a fluid or mixture, comprising: a capsule body, a surface layer on said capsule body that is permeable to carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide, stripping solvents encapsulated within said capsule body, wherein said stripping solvents are soluble to carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide and wherein carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide migrates through said surface layer and is taken up by said stripping solvents separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from the fluid or mixture, and a catalyst or enzyme layer between said surface layer and said stripping solvents. 2. The capsule for separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from a fluid or mixture of claim 1 wherein said surface layer is a surface layer of that includes carbon nanotubes. 3. The capsule for separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from a fluid or mixture of claim 1 wherein said stripping solvents are primary, secondary, tertiary, and hindered amines, caustic solutions, ionic buffer solutions, ammonia, or other solvents having solubility of carbon dioxide. 4. The capsule for separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from a fluid or mixture of claim 1 wherein said stripping solvents are amines. 5. The capsule for separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from a fluid or mixture of claim 1 wherein said surface layer is made of a porous solid. 6. The capsule for separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from a fluid or mixture of claim 1 wherein said surface layer includes carbon fibers. 7. The capsule for separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from a fluid or mixture of claim 1 wherein said surface layer includes nanotubes. 8. The capsule for separating carbon dioxide, nitrous oxides, sulfites, or hydrogen sulfide from a fluid or mixture of claim 1 wherein said surface layer is made of polystyrene, polyethylene, polypropylene, or nylon.
Assignees
Inventors
Classifications
Removing hydrogen sulfide · CPC title
Flue gases · CPC title
Tertiary amines · CPC title
containing free carbon, e.g. activated carbon · CPC title
Ammonia · CPC title
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Frequently asked questions
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- What does patent US11117091B2 cover?
- Method and apparatus for separating a target substance from a fluid or mixture. Capsules having a coating and stripping solvents encapsulated in the capsules are provided. The coating is permeable to the target substance. The capsules having a coating and stripping solvents encapsulated in the capsules are exposed to the fluid or mixture. The target substance migrates through the coating and is…
- Who is the assignee on this patent?
- L Livermore Nat Security Llc, Univ Illinois
- What technology area does this patent fall under?
- Primary CPC classification B01D53/1475. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 14 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).