JPS6467256A - Catalyst for purifying exhaust gas - Google Patents

Catalyst for purifying exhaust gas

Info

Publication number
JPS6467256A
JPS6467256A JP62224307A JP22430787A JPS6467256A JP S6467256 A JPS6467256 A JP S6467256A JP 62224307 A JP62224307 A JP 62224307A JP 22430787 A JP22430787 A JP 22430787A JP S6467256 A JPS6467256 A JP S6467256A
Authority
JP
Japan
Prior art keywords
low temperature
catalyst
zro2
enhanced
binding agent
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
JP62224307A
Other languages
Japanese (ja)
Inventor
Mieko Tanabe
Kunio Ito
Nobuyuki Yanagihara
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 JP62224307A priority Critical patent/JPS6467256A/en
Publication of JPS6467256A publication Critical patent/JPS6467256A/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)

Abstract

PURPOSE:To enhance NO2 nemovability in low temperature range by carrying at least one or either Pd and Pt or CeO2 and ZrO2 as the catalyst metal on a ceramic porous carrier. CONSTITUTION:A proper volume of a binding agent and water is added to powder constituted of mixture of alumina cement composed of Al2O3 and CaO, molten silica and TiO2, kneaded, pressurized in a honeycomb shape and molded, and then dried and turned into a porous carrier after the binding agent is removed at the temperature of approximately 500 deg.C. Pd, ZrO2 and Pt are carried on said carrier, calcined at 1,000 deg.C to prepare a catalyst. As Pt, one of catalyst metals, is highly active in the low temperature, NO2 removability in low temperature range at 300 deg.C-500 deg.C is enhanced by said process, while ZrO2 works as a promoter in the activity in the low temperature and catalytic activity in the low temperature is enhanced.
JP62224307A 1987-09-08 1987-09-08 Catalyst for purifying exhaust gas Pending JPS6467256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224307A JPS6467256A (en) 1987-09-08 1987-09-08 Catalyst for purifying exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224307A JPS6467256A (en) 1987-09-08 1987-09-08 Catalyst for purifying exhaust gas

Publications (1)

Publication Number Publication Date
JPS6467256A true JPS6467256A (en) 1989-03-13

Family

ID=16811712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224307A Pending JPS6467256A (en) 1987-09-08 1987-09-08 Catalyst for purifying exhaust gas

Country Status (1)

Country Link
JP (1) JPS6467256A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0214744A (en) * 1988-07-01 1990-01-18 Nippon Shokubai Kagaku Kogyo Co Ltd Exhaust gas purification catalyst
US5260249A (en) * 1991-04-05 1993-11-09 Nippon Shokubai, Co., Ltd. Catalyst for purifying automotive exhaust gas
CN115364852A (en) * 2022-07-26 2022-11-22 浙江梦溪环保科技有限公司 Porous ceramic loaded with nano noble metal oxide catalyst and preparation method and application thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0214744A (en) * 1988-07-01 1990-01-18 Nippon Shokubai Kagaku Kogyo Co Ltd Exhaust gas purification catalyst
US5260249A (en) * 1991-04-05 1993-11-09 Nippon Shokubai, Co., Ltd. Catalyst for purifying automotive exhaust gas
CN115364852A (en) * 2022-07-26 2022-11-22 浙江梦溪环保科技有限公司 Porous ceramic loaded with nano noble metal oxide catalyst and preparation method and application thereof

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