JPS5539249A - Regenerating method of metal catalysts - Google Patents
Regenerating method of metal catalystsInfo
- Publication number
- JPS5539249A JPS5539249A JP11222678A JP11222678A JPS5539249A JP S5539249 A JPS5539249 A JP S5539249A JP 11222678 A JP11222678 A JP 11222678A JP 11222678 A JP11222678 A JP 11222678A JP S5539249 A JPS5539249 A JP S5539249A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- metal catalysts
- rate
- oxyhydrogen
- explosion
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Abstract
PURPOSE: To eliminate the danger of explosion as with conventional methods and improve the rate of regeneration of metal catalysts to more than 90% by heat- treating the degraded metal catalysts for recombination of oxyhydrogen in inert gas flow without containing hydrogen for 3 hours at the specified temperature.
CONSTITUTION: In regenerating the degraded palladium metal catalysts used for oxyhydrogen recombination device, etc. of atomic power plant, the catalyst layer 12 of a column 11 is heated by a heater 13 to maintain its temperature at the minimum temperature which is lower than the temperature at which the catalyst metal causes sintering and at which the rate of regeneration changing with oxygen density in the inert gas reaches 90%. Said layer is heat treated for 3 hours by introducing nitrogen gas (without containing hydrogen and the less the O2 the better) into the column 11 through a flowmeter 7 from a nitrogen cylinder 1. The temperature of the catalyst layer 12 of this case is kept within a range of 450W600°C. According to this method, the rate of generation of 50% by a conventional hydrogen reduction method is considerably improved and there is no danger for explosion.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11222678A JPS5539249A (en) | 1978-09-14 | 1978-09-14 | Regenerating method of metal catalysts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11222678A JPS5539249A (en) | 1978-09-14 | 1978-09-14 | Regenerating method of metal catalysts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5539249A true JPS5539249A (en) | 1980-03-19 |
Family
ID=14581400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11222678A Pending JPS5539249A (en) | 1978-09-14 | 1978-09-14 | Regenerating method of metal catalysts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5539249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4774355A (en) * | 1986-09-18 | 1988-09-27 | Mitsubishi Petrochemical Co., Ltd. | Process for preparing pentaerythritol-tetrakis(3-alkylthio-propionate) |
-
1978
- 1978-09-14 JP JP11222678A patent/JPS5539249A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4774355A (en) * | 1986-09-18 | 1988-09-27 | Mitsubishi Petrochemical Co., Ltd. | Process for preparing pentaerythritol-tetrakis(3-alkylthio-propionate) |
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