JPS57127426A - Method for removal of nitrogen oxide - Google Patents

Method for removal of nitrogen oxide

Info

Publication number
JPS57127426A
JPS57127426A JP56010813A JP1081381A JPS57127426A JP S57127426 A JPS57127426 A JP S57127426A JP 56010813 A JP56010813 A JP 56010813A JP 1081381 A JP1081381 A JP 1081381A JP S57127426 A JPS57127426 A JP S57127426A
Authority
JP
Japan
Prior art keywords
nox
activity
oxides
catalyst
observed
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
Application number
JP56010813A
Other languages
Japanese (ja)
Other versions
JPS6215247B2 (en
Inventor
Akira Inoue
Kiichiro Mitsui
Tetsutsugu Ono
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.)
Nippon Shokubai Co Ltd
Original Assignee
Nippon Shokubai Co 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 Nippon Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Priority to JP56010813A priority Critical patent/JPS57127426A/en
Publication of JPS57127426A publication Critical patent/JPS57127426A/en
Publication of JPS6215247B2 publication Critical patent/JPS6215247B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)

Abstract

PURPOSE: To obtain a catalyst of high heat resistance having sufficient activity at elevated temp. over a long period of time in performing catalytic reduction of NOX in the presence of NH3 by forming the carrier of catalysts of composite oxides contg. P as a constituting element.
CONSTITUTION: This catalyst contains both components of A) ≥1 kinds of 3- or 4-element composite oxides consisting of Ti, P, Si and/or Zr, and B) oxides of ≥1 kinds of W, Ce, Sn. Here, the component A per se has activity for the NOX in waste gases, and also plays the role of a carrier. This is a solid acid and exhibits marked acidity not observed in respective independent oxides, and has high heat resistance coupled with high specific surface area. With the P in the component A, various effects can be observed; above all, it suppresses particularly the oxidation of NH3 to NOX and the crystallization of catalyst components. As a result, it maintains high activity for a long period of time.
COPYRIGHT: (C)1982,JPO&Japio
JP56010813A 1981-01-29 1981-01-29 Method for removal of nitrogen oxide Granted JPS57127426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56010813A JPS57127426A (en) 1981-01-29 1981-01-29 Method for removal of nitrogen oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56010813A JPS57127426A (en) 1981-01-29 1981-01-29 Method for removal of nitrogen oxide

Publications (2)

Publication Number Publication Date
JPS57127426A true JPS57127426A (en) 1982-08-07
JPS6215247B2 JPS6215247B2 (en) 1987-04-07

Family

ID=11760780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56010813A Granted JPS57127426A (en) 1981-01-29 1981-01-29 Method for removal of nitrogen oxide

Country Status (1)

Country Link
JP (1) JPS57127426A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4812296A (en) * 1985-09-06 1989-03-14 Siemens Aktiengesellschaft Process utilizing catalytic material for the reduction of nitrous oxides
JPH09155196A (en) * 1995-12-13 1997-06-17 Jisedai Haigasu Shokubai Kenkyusho:Kk Exhaust gas cleaning catalyst and manufacture thereof
WO2005082494A1 (en) * 2004-02-27 2005-09-09 Tokyo Roki Co. Ltd. Catalyst system for removing nitrogen oxide and method for removing nitrogen oxide
JP2008296224A (en) * 2008-09-02 2008-12-11 Tokyo Roki Co Ltd Nitrogen oxide removing catalyst, nitrogen oxide removing method using it, and nitrogen oxide removing device
WO2011042953A1 (en) * 2009-10-06 2011-04-14 三菱重工業株式会社 Nox reduction catalyst for high-temperature exhaust gas, method for producing same, and method for reducing nox in high-temperature exhaust gas
JP2013078768A (en) * 2013-02-04 2013-05-02 Mitsubishi Heavy Ind Ltd Denitration catalyst for high-temperature exhaust gas, method for producing the catalyst, and method for denitrating high-temperature exhaust gas
CN106040287A (en) * 2015-04-13 2016-10-26 丰田自动车株式会社 Exhaust gas purification catalyst

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217365A (en) * 1975-07-31 1977-02-09 Mitsubishi Chem Ind Ltd Catalytic reduction and decomposition process for nitrogen oxides
JPS5242464A (en) * 1975-10-01 1977-04-02 Hitachi Ltd Method of reducing and removing nox in exhaust gas
JPS5268858A (en) * 1975-12-05 1977-06-08 Hitachi Ltd Oxidizing decomposition method of ammonia
JPS5275656A (en) * 1975-12-19 1977-06-24 Asahi Glass Co Ltd Treatment of nitrogen oxides
JPS55157329A (en) * 1979-05-25 1980-12-08 Fuji Titan Kogyo Kk Preparation of catalyst support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5217365A (en) * 1975-07-31 1977-02-09 Mitsubishi Chem Ind Ltd Catalytic reduction and decomposition process for nitrogen oxides
JPS5242464A (en) * 1975-10-01 1977-04-02 Hitachi Ltd Method of reducing and removing nox in exhaust gas
JPS5268858A (en) * 1975-12-05 1977-06-08 Hitachi Ltd Oxidizing decomposition method of ammonia
JPS5275656A (en) * 1975-12-19 1977-06-24 Asahi Glass Co Ltd Treatment of nitrogen oxides
JPS55157329A (en) * 1979-05-25 1980-12-08 Fuji Titan Kogyo Kk Preparation of catalyst support

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4812296A (en) * 1985-09-06 1989-03-14 Siemens Aktiengesellschaft Process utilizing catalytic material for the reduction of nitrous oxides
JPH09155196A (en) * 1995-12-13 1997-06-17 Jisedai Haigasu Shokubai Kenkyusho:Kk Exhaust gas cleaning catalyst and manufacture thereof
WO2005082494A1 (en) * 2004-02-27 2005-09-09 Tokyo Roki Co. Ltd. Catalyst system for removing nitrogen oxide and method for removing nitrogen oxide
US7597865B2 (en) 2004-02-27 2009-10-06 Tokyo Roki Co., Ltd Nitrogen oxide removal catalyst system and nitrogen oxide removal method
EP2305367A1 (en) * 2004-02-27 2011-04-06 Tokyo Roki Co. Ltd. Catalyst system for removing nitrogen oxide and method for removing nitrogen oxide
JP2008296224A (en) * 2008-09-02 2008-12-11 Tokyo Roki Co Ltd Nitrogen oxide removing catalyst, nitrogen oxide removing method using it, and nitrogen oxide removing device
WO2011042953A1 (en) * 2009-10-06 2011-04-14 三菱重工業株式会社 Nox reduction catalyst for high-temperature exhaust gas, method for producing same, and method for reducing nox in high-temperature exhaust gas
RU2476258C2 (en) * 2009-10-06 2013-02-27 Мицубиси Хеви Индастриз, Лтд. CATALYST OF NOx REMOVAL FROM HIGH-TEMPERATURE SMOKE GAS, METHOD OF ITS OBTAINING AND METHOD OF NOx REMOVAL FROM HIGH-TEMPERATURE SMOKE GAS
JPWO2011042953A1 (en) * 2009-10-06 2013-02-28 三菱重工業株式会社 Denitration catalyst for high temperature exhaust gas and method for producing the same, high temperature exhaust gas denitration method
US8815194B2 (en) 2009-10-06 2014-08-26 Mitsubishi Heavy Industries, Ltd. NOx removal catalyst for high-temperature flue gas, manufacturing method thereof, and NOx removal method for high-temperature flue gas
US9302251B2 (en) 2009-10-06 2016-04-05 Mitsubishi Heavy Industries, Ltd. NOx removal catalyst for high-temperature flue gas, manufacturing method thereof, and NOx removal method for high-temperature flue gas
JP2013078768A (en) * 2013-02-04 2013-05-02 Mitsubishi Heavy Ind Ltd Denitration catalyst for high-temperature exhaust gas, method for producing the catalyst, and method for denitrating high-temperature exhaust gas
CN106040287A (en) * 2015-04-13 2016-10-26 丰田自动车株式会社 Exhaust gas purification catalyst
JP2016198741A (en) * 2015-04-13 2016-12-01 トヨタ自動車株式会社 Catalyst for exhaust purification
US9789474B2 (en) 2015-04-13 2017-10-17 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification catalyst

Also Published As

Publication number Publication date
JPS6215247B2 (en) 1987-04-07

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