JPS6430643A - Catalyst for purifying exhaust gas - Google Patents

Catalyst for purifying exhaust gas

Info

Publication number
JPS6430643A
JPS6430643A JP62186148A JP18614887A JPS6430643A JP S6430643 A JPS6430643 A JP S6430643A JP 62186148 A JP62186148 A JP 62186148A JP 18614887 A JP18614887 A JP 18614887A JP S6430643 A JPS6430643 A JP S6430643A
Authority
JP
Japan
Prior art keywords
catalyst
exhaust gas
nox
shows
purifying exhaust
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
JP62186148A
Other languages
Japanese (ja)
Inventor
Kenji Tabata
Ikuo Matsumoto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62186148A priority Critical patent/JPS6430643A/en
Publication of JPS6430643A publication Critical patent/JPS6430643A/en
Pending legal-status Critical Current

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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

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

Abstract

PURPOSE:To enable decomposition of NOx contained in large excess oxygen without using a conventional reducing agent by providing an NOx decomposition catalyst shown in the specified crystalline structural formula in the passage of exhaust gas of an automobile equipped with an internal combustion engine. CONSTITUTION:An NOx decomposition catalyst having a crystal structure shown in the formula I (A shows alkaline earth metal such as Ba and Sr, B shows rare earth metal such as Y, Nd and La, C shows metal of copper group such as Cu and Ag, 0<=x<=3.0, 0<=y<=2.0, 0<=z<=4.0, 4.0<=alpha<=8.0, 0<=beta<=2.0) is formed. A catalyst for purifying exhaust gas is constituted by providing this NOx decomposition catalyst 3 in the passage of exhaust gas of an automobile equipped with an internal combustion engine 1. By this catalyst constitution, NOx of ppm order contained even in large excess oxygen such as about 10% can be decomposed.
JP62186148A 1987-07-24 1987-07-24 Catalyst for purifying exhaust gas Pending JPS6430643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62186148A JPS6430643A (en) 1987-07-24 1987-07-24 Catalyst for purifying exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62186148A JPS6430643A (en) 1987-07-24 1987-07-24 Catalyst for purifying exhaust gas

Publications (1)

Publication Number Publication Date
JPS6430643A true JPS6430643A (en) 1989-02-01

Family

ID=16183220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62186148A Pending JPS6430643A (en) 1987-07-24 1987-07-24 Catalyst for purifying exhaust gas

Country Status (1)

Country Link
JP (1) JPS6430643A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01104345A (en) * 1987-10-15 1989-04-21 Res Dev Corp Of Japan Oxygen-deficient perovskite catalyst
JPH01245851A (en) * 1988-03-25 1989-10-02 Res Dev Corp Of Japan Oxygen deficient perovskite catalyst
WO1993008383A1 (en) * 1991-10-14 1993-04-29 Toyota Jidosha Kabushiki Kaisha Exhaust and purification device for internal combustion engine
WO1993025805A1 (en) * 1992-06-12 1993-12-23 Toyota Jidosha Kabushiki Kaisha Exhaust emission control system for internal combustion engine
WO1993025806A1 (en) * 1992-06-12 1993-12-23 Toyota Jidosha Kabushiki Kaisha Exhaust emission control system for internal combustion engine
WO1994012778A1 (en) * 1992-12-03 1994-06-09 Toyota Jidosha Kabushiki Kaisha Exhaust gas cleaning apparatus for internal combustion engines
US5388406A (en) * 1991-10-29 1995-02-14 Toyota Jidosha Kabushiki Kaisha NOx decreasing apparatus for an internal combustion engine
US5402641A (en) * 1992-07-24 1995-04-04 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification apparatus for an internal combustion engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62186149A (en) * 1986-02-13 1987-08-14 Fujita Corp Air purifier in clean room
JPS62186146A (en) * 1986-02-10 1987-08-14 Taisei Corp Pollution-free windowless chicken house
JPS62186151A (en) * 1986-02-10 1987-08-14 Suehiro Sangyo Kk Method of intake of external air in underground room
JPS62186150A (en) * 1986-02-13 1987-08-14 Fujita Corp Air cleaner in clean room
JPS62186152A (en) * 1986-02-07 1987-08-14 Matsushita Seiko Co Ltd Control device of air conditioner
JPS62186145A (en) * 1986-02-07 1987-08-14 Matsushita Seiko Co Ltd Ventilation fan
JPS62186147A (en) * 1986-02-08 1987-08-14 Takasago Thermal Eng Co Ltd Air conditioner unit for clean room

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62186152A (en) * 1986-02-07 1987-08-14 Matsushita Seiko Co Ltd Control device of air conditioner
JPS62186145A (en) * 1986-02-07 1987-08-14 Matsushita Seiko Co Ltd Ventilation fan
JPS62186147A (en) * 1986-02-08 1987-08-14 Takasago Thermal Eng Co Ltd Air conditioner unit for clean room
JPS62186146A (en) * 1986-02-10 1987-08-14 Taisei Corp Pollution-free windowless chicken house
JPS62186151A (en) * 1986-02-10 1987-08-14 Suehiro Sangyo Kk Method of intake of external air in underground room
JPS62186149A (en) * 1986-02-13 1987-08-14 Fujita Corp Air purifier in clean room
JPS62186150A (en) * 1986-02-13 1987-08-14 Fujita Corp Air cleaner in clean room

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01104345A (en) * 1987-10-15 1989-04-21 Res Dev Corp Of Japan Oxygen-deficient perovskite catalyst
JPH01245851A (en) * 1988-03-25 1989-10-02 Res Dev Corp Of Japan Oxygen deficient perovskite catalyst
WO1993008383A1 (en) * 1991-10-14 1993-04-29 Toyota Jidosha Kabushiki Kaisha Exhaust and purification device for internal combustion engine
US5388406A (en) * 1991-10-29 1995-02-14 Toyota Jidosha Kabushiki Kaisha NOx decreasing apparatus for an internal combustion engine
WO1993025805A1 (en) * 1992-06-12 1993-12-23 Toyota Jidosha Kabushiki Kaisha Exhaust emission control system for internal combustion engine
WO1993025806A1 (en) * 1992-06-12 1993-12-23 Toyota Jidosha Kabushiki Kaisha Exhaust emission control system for internal combustion engine
US5437153A (en) * 1992-06-12 1995-08-01 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
US5450722A (en) * 1992-06-12 1995-09-19 Toyota Jidosha Kabushiki Kaisha Exhaust purification device of internal combustion engine
EP0598916A4 (en) * 1992-06-12 1998-08-19 Toyota Motor Co Ltd Exhaust emission control system for internal combustion engine.
EP0598917A4 (en) * 1992-06-12 1998-08-19 Toyota Motor Co Ltd Exhaust emission control system for internal combustion engine.
US5402641A (en) * 1992-07-24 1995-04-04 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification apparatus for an internal combustion engine
WO1994012778A1 (en) * 1992-12-03 1994-06-09 Toyota Jidosha Kabushiki Kaisha Exhaust gas cleaning apparatus for internal combustion engines

Similar Documents

Publication Publication Date Title
JPS5314662A (en) Method for decreasing nitrogen oxides concentration of combustion exhaust gas
CA2506468A1 (en) Exhaust gas purifying catalyst and method for purifying exhaust gas
JPS53120020A (en) Internal combustion engine operation method
JPS6430642A (en) Catalyst for purifying exhaust gas
JPS6430647A (en) Catalyst for purifying exhaust gas
JPS6430641A (en) Catalyst for purifying exhaust gas
JPS51137670A (en) Method for decreasing nitrogen oxides in exhaust gas
JPS53100317A (en) Exhaust purifying process and system in internal combustion engine
JPS55112913A (en) Low nox combustion system
JPS5221519A (en) Exhaust gas purifying train of an internal combustion engine
JPS5242464A (en) Method of reducing and removing nox in exhaust gas
JPS57105245A (en) Preparation of catalyst composition
JPS6430573A (en) Tobacco filter
JPS52124522A (en) Gasoline internal combustion engine
JPS6430645A (en) Nox decomposition catalyst
JPS548215A (en) Reduction of concentration of nitrogen oxide in combustion gas of gas turbine
JPS6430627A (en) Air filter
JPS5217365A (en) Catalytic reduction and decomposition process for nitrogen oxides
JPS5295573A (en) Decreasing method of nitrogen oxide in exhaust gas
JPS55104652A (en) Catalyst for purifying exhaust from internal combustion engine
JPS52101664A (en) Treatment of nitrogen oxides of high concentration by combustion
JPS6480430A (en) Exhaust gas purifying device
JPS56110507A (en) Purifying device for exhaust gas
JPS53125523A (en) Exhaust gas purifying equipment of internal combustion engine
JPS5648230A (en) Purifying method of combustion exhaust gas