Ionic liquid catalyst treating system
US-2018272327-A1 · Sep 27, 2018 · US
Method for regenerating COS hydrolysis catalyst
US9486797B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9486797-B2 |
| Application number | US-201414897104-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 10, 2014 |
| Priority date | Dec 27, 2013 |
| Publication date | Nov 8, 2016 |
| Grant date | Nov 8, 2016 |
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Abstract
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The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to the present invention is a method for regenerating a Ba/TiO 2 based 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 washed with water, dried, immersed in an aqueous solution of a barium salt for a prescribed amount of time, dried, and calcined so as to re-support the active component on the surface of the COS hydrolysis catalyst, thus enabling the regeneration of the COS hydrolysis catalyst.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for regenerating a barium oxide-based 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 aqueous solution of a barium salt for a prescribed amount of time, dried, and then calcined. 2. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 1 , wherein dust removal is performed prior to immersion. 3. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 1 , wherein drying is performed after water washing prior to immersion. 4. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 1 , wherein a temperature of the calcination is at least 200° C. 5. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 2 , wherein drying is performed after water washing prior to immersion. 6. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 2 , wherein a temperature of the calcination is at least 200° C. 7. The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to claim 3 , wherein a temperature of the calcination is at least 200° C.
Assignees
Inventors
Classifications
- B01J38/64Primary
using alkaline material; using salts · CPC title
of catalysts comprising metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 · CPC title
Barium · CPC title
Regeneration or reactivation · CPC title
Titanium · CPC title
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- What does patent US9486797B2 cover?
- The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to the present invention is a method for regenerating a Ba/TiO 2 based 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 washed with water, dried, immersed in an aqueous solution of a b…
- Who is the assignee on this patent?
- Mitsubishi Heavy Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01J38/64. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 08 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).