JPS6458344A - Regenerating method for active carbon catalyst - Google Patents
Regenerating method for active carbon catalystInfo
- Publication number
- JPS6458344A JPS6458344A JP62217037A JP21703787A JPS6458344A JP S6458344 A JPS6458344 A JP S6458344A JP 62217037 A JP62217037 A JP 62217037A JP 21703787 A JP21703787 A JP 21703787A JP S6458344 A JPS6458344 A JP S6458344A
- Authority
- JP
- Japan
- Prior art keywords
- active carbon
- hydrochloric acid
- air
- flowing
- passing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title abstract 11
- 238000000034 method Methods 0.000 title abstract 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 5
- 229910052799 carbon Inorganic materials 0.000 title abstract 5
- 230000001172 regenerating effect Effects 0.000 title 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 10
- 230000001590 oxidative effect Effects 0.000 abstract 4
- 229910052979 sodium sulfide Inorganic materials 0.000 abstract 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 208000008918 voyeurism Diseases 0.000 abstract 1
Landscapes
- Catalysts (AREA)
- Paper (AREA)
Abstract
PURPOSE:To regenerate active carbon catalysts efficiently by flowing hydrochloric acid and air simultaneously through a catalyst layer with active carbon catalysts which is lowered catalyst performance by the oxidative reaction treatment of water solution containing sodium sulfide, peeping an oxidative reactor intact as it is. CONSTITUTION:Granular active carbon catalysts or fiber-like active carbon catalysts which is lowered catalyst performance by the oxidative reaction treatment of water solution containing sodium sulfide, filled in an oxidative reactor, are regenerated by passing through of hydrochloric acid and air keeping the reactor intact as it is. It is proper to add one or two or all of the process among processes of exposing sufficiently the catalyst layer to air or oxygen current prior to said flowing process of hydrochloric acid, of washing the catalyst layer while passing through the air just before the process of flowing through hydrochloric acid, and of washing the catalysts while passing through the air after the process of flowing through hydrochloric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62217037A JPH07114959B2 (en) | 1987-08-31 | 1987-08-31 | Activated carbon catalyst regeneration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62217037A JPH07114959B2 (en) | 1987-08-31 | 1987-08-31 | Activated carbon catalyst regeneration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6458344A true JPS6458344A (en) | 1989-03-06 |
| JPH07114959B2 JPH07114959B2 (en) | 1995-12-13 |
Family
ID=16697849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62217037A Expired - Fee Related JPH07114959B2 (en) | 1987-08-31 | 1987-08-31 | Activated carbon catalyst regeneration method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07114959B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11219881B2 (en) | 2015-04-27 | 2022-01-11 | Andritz Oy | Method for regenerating catalysts used for production of polysulphide cooking liquors |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4506085B2 (en) * | 2003-03-18 | 2010-07-21 | 日本製紙株式会社 | Cleaning method of activated carbon catalyst for white liquor oxidation and white liquor oxidation apparatus equipped with the washing mechanism |
-
1987
- 1987-08-31 JP JP62217037A patent/JPH07114959B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11219881B2 (en) | 2015-04-27 | 2022-01-11 | Andritz Oy | Method for regenerating catalysts used for production of polysulphide cooking liquors |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07114959B2 (en) | 1995-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |