JPS55142532A - Method for removing nitrogen oxide in waste gas and catalyst therefor - Google Patents

Method for removing nitrogen oxide in waste gas and catalyst therefor

Info

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
Application number
JP5056779A
Other languages
Japanese (ja)
Inventor
Masumi Atsukawa
Tsunehiro Yamazaki
Shigeo Yokoyama
Tadamasa Sengoku
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP5056779A priority Critical patent/JPS55142532A/en
Publication of JPS55142532A publication Critical patent/JPS55142532A/en
Pending legal-status Critical Current

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
JP5056779A 1979-04-24 1979-04-24 Method for removing nitrogen oxide in waste gas and catalyst therefor Pending JPS55142532A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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