JPS55142532A - Method for removing nitrogen oxide in waste gas and catalyst therefor - Google Patents
Method for removing nitrogen oxide in waste gas and catalyst thereforInfo
- Publication number
- JPS55142532A JPS55142532A JP5056779A JP5056779A JPS55142532A JP S55142532 A JPS55142532 A JP S55142532A JP 5056779 A JP5056779 A JP 5056779A JP 5056779 A JP5056779 A JP 5056779A JP S55142532 A JPS55142532 A JP S55142532A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- waste gas
- tungsten oxide
- nitrogen oxide
- removing nitrogen
- 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
Abstract
PURPOSE: To obtain a high performance catalyst having a high heat resistance as a reductive catalyst for nitrogen oxides present in waste gas by supporting a tungsten oxide, etc., on a coprecipitated alumina-titania support.
CONSTITUTION: As a catalyst used in the catalytic reduction removal of nitrogen oxides present in waste gas by using ammonia as a reducing agent, tungsten oxide alone or a combination of tungsten oxide and 5wt% or less cerium oxide is supported on a support obtained by coprecipitation of an aqueous solution of containing an ammonium salt and a titanium salt with an alkali. The catalyst thus obtained is excellent in heat resistance in a temperature region of 400W700°C as well as in catalytic performance and also is inexpensive.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5056779A JPS55142532A (en) | 1979-04-24 | 1979-04-24 | Method for removing nitrogen oxide in waste gas and catalyst therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5056779A JPS55142532A (en) | 1979-04-24 | 1979-04-24 | Method for removing nitrogen oxide in waste gas and catalyst therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55142532A true JPS55142532A (en) | 1980-11-07 |
Family
ID=12862574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5056779A Pending JPS55142532A (en) | 1979-04-24 | 1979-04-24 | Method for removing nitrogen oxide in waste gas and catalyst therefor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55142532A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0256250A (en) * | 1988-08-23 | 1990-02-26 | Sakai Chem Ind Co Ltd | Catalyst for removing nitrogen oxide in exhaust gas |
US5856263A (en) * | 1992-08-28 | 1999-01-05 | Union Carbide Chemicals & Plastics Technology Corporation | Catalysts comprising substantially pure alpha-alumina carrier for treating exhaust gases |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5090569A (en) * | 1973-12-13 | 1975-07-19 | ||
JPS51126992A (en) * | 1975-04-30 | 1976-11-05 | Sakai Chem Ind Co Ltd | Process and catalysts for the removal of nitrogen oxides |
-
1979
- 1979-04-24 JP JP5056779A patent/JPS55142532A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5090569A (en) * | 1973-12-13 | 1975-07-19 | ||
JPS51126992A (en) * | 1975-04-30 | 1976-11-05 | Sakai Chem Ind Co Ltd | Process and catalysts for the removal of nitrogen oxides |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0256250A (en) * | 1988-08-23 | 1990-02-26 | Sakai Chem Ind Co Ltd | Catalyst for removing nitrogen oxide in exhaust gas |
US5856263A (en) * | 1992-08-28 | 1999-01-05 | Union Carbide Chemicals & Plastics Technology Corporation | Catalysts comprising substantially pure alpha-alumina carrier for treating exhaust gases |
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