JPS5778949A - Regeneration of poisoned catalyst for removing nitrogen oxide - Google Patents
Regeneration of poisoned catalyst for removing nitrogen oxideInfo
- Publication number
- JPS5778949A JPS5778949A JP55154581A JP15458180A JPS5778949A JP S5778949 A JPS5778949 A JP S5778949A JP 55154581 A JP55154581 A JP 55154581A JP 15458180 A JP15458180 A JP 15458180A JP S5778949 A JPS5778949 A JP S5778949A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- poisoned
- carrier
- nitrogen oxide
- supported
- 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
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE: To regenerate catalytic activity by simple treating operation by a method wherein a poisoned catalyst with a honeycomb structure of which catalytic activity is lowered is subjected to heat treatment at a specific temp. for a definite time or more and, thereafter, a catalyst substance is supported on the resultant carrier.
CONSTITUTION: A poisoned catalyst of which catalytic activity is lowered by using a catalyst for removing nitrogen oxide comprising a honeycomb structure for a long time is subjected to heat treatment in a temp. range of 1,150W1,450°C for 10min or more and, thereafter, a catalyst substance such as titanium, tungsten or the like is supported on the resultant carrier. As described above, by simple treating operation, the poisoned catalyst is recovered as a catalyst carrier and the catalyst substance is supported on said recovered carrier to regenerated said poisoned catalyst to a catalyst having high denitrating characteristics.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154581A JPS5778949A (en) | 1980-11-05 | 1980-11-05 | Regeneration of poisoned catalyst for removing nitrogen oxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55154581A JPS5778949A (en) | 1980-11-05 | 1980-11-05 | Regeneration of poisoned catalyst for removing nitrogen oxide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5778949A true JPS5778949A (en) | 1982-05-17 |
JPS6345252B2 JPS6345252B2 (en) | 1988-09-08 |
Family
ID=15587333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55154581A Granted JPS5778949A (en) | 1980-11-05 | 1980-11-05 | Regeneration of poisoned catalyst for removing nitrogen oxide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5778949A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0815924A1 (en) * | 1996-06-25 | 1998-01-07 | Mitsubishi Heavy Industries, Ltd. | Nitrogen oxide removal catalyst |
-
1980
- 1980-11-05 JP JP55154581A patent/JPS5778949A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0815924A1 (en) * | 1996-06-25 | 1998-01-07 | Mitsubishi Heavy Industries, Ltd. | Nitrogen oxide removal catalyst |
US5869419A (en) * | 1996-06-25 | 1999-02-09 | Mitsubishi Heavy Industries, Ltd. | Nitrogen oxide removal catalyst |
Also Published As
Publication number | Publication date |
---|---|
JPS6345252B2 (en) | 1988-09-08 |
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