Method for regenerating cos hydrolysis catalyst
US-2016136636-A1 · May 19, 2016 · US
Method for regenerating COS hydrolysis catalyst
US9604206B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9604206-B2 |
| Application number | US-201414898325-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 20, 2014 |
| Priority date | Oct 23, 2013 |
| Publication date | Mar 28, 2017 |
| Grant date | Mar 28, 2017 |
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Abstract
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A method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst for hydrolyzing COS which is contained in a gas obtained by gasifying a carbon material, wherein a spent COS hydrolysis catalyst is immersed in an acid solution for a prescribed time thereby removing poisoning substances adhering to the surface of the COS hydrolysis catalyst; and thus regenerating the COS hydrolysis catalyst.
First claim
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The invention claimed is: 1. A method for regenerating a carbonyl sulfide (COS) conversion catalyst by hydrolyzing COS which is contained in a gas obtained by gasifying a carbon raw material, wherein a spent COS hydrolysis catalyst is immersed in an acid solution for a prescribed amount of time. 2. A method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst by hydrolyzing COS which is contained in a gas obtained by gasifying a carbon raw material, wherein a spent COS hydrolysis catalyst is immersed in an alkali solution for a prescribed amount of time; and then immersed in an acid solution for a prescribed amount of time. 3. A method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst by hydrolyzing COS which is contained in a gas obtained by gasifying a carbon raw material, wherein a spent COS hydrolysis catalyst is immersed in an acid solution for a prescribed amount of time; and then immersed in an alkali solution for a prescribed amount of time. 4. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 1 , wherein the immersion is performed in a prescribed heated state. 5. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 2 , wherein the immersion is performed in a prescribed heated state. 6. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 3 , wherein the immersion is performed in a prescribed heated state.
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- What does patent US9604206B2 cover?
- A method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst for hydrolyzing COS which is contained in a gas obtained by gasifying a carbon material, wherein a spent COS hydrolysis catalyst is immersed in an acid solution for a prescribed time thereby removing poisoning substances adhering to the surface of the COS hydrolysis catalyst; and thus regenerating the COS hydrolysis catalyst.
- Who is the assignee on this patent?
- Mitsubishi Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01J38/60. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 28 2017 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).