CA2245970A1 - Catalyseur de controle d'emission gaz d'echappement et procede pour controler l'emission de gaz d'echappement - Google Patents

Catalyseur de controle d'emission gaz d'echappement et procede pour controler l'emission de gaz d'echappement

Info

Publication number
CA2245970A1
CA2245970A1 CA002245970A CA2245970A CA2245970A1 CA 2245970 A1 CA2245970 A1 CA 2245970A1 CA 002245970 A CA002245970 A CA 002245970A CA 2245970 A CA2245970 A CA 2245970A CA 2245970 A1 CA2245970 A1 CA 2245970A1
Authority
CA
Canada
Prior art keywords
exhaust gas
exhaust emission
nitrogen
oxides
catalyst
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
CA002245970A
Other languages
English (en)
Other versions
CA2245970C (fr
Inventor
Makoto Kawanami
Makoto Horiuchi
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.)
Umicore Shokubai Japan Co Ltd
Umicore Shokubai USA Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/JP1996/003798 priority Critical patent/WO1998029188A1/fr
Priority to EP96942650A priority patent/EP0888816B1/fr
Priority to CA002245970A priority patent/CA2245970C/fr
Priority claimed from PCT/JP1996/003798 external-priority patent/WO1998029188A1/fr
Publication of CA2245970A1 publication Critical patent/CA2245970A1/fr
Application granted granted Critical
Publication of CA2245970C publication Critical patent/CA2245970C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/83Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • B01D53/8628Processes characterised by a specific catalyst
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404Removing only nitrogen compounds
    • B01D53/9409Nitrogen oxides
    • B01D53/9413Processes characterised by a specific catalyst
    • B01D53/9418Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/206Rare earth metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20738Iron
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20746Cobalt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/20Metals or compounds thereof
    • B01D2255/207Transition metals
    • B01D2255/20753Nickel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/50Zeolites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
CA002245970A 1996-12-26 1996-12-26 Catalyseur de controle d'emission gaz d'echappement et procede pour controler l'emission de gaz d'echappement Expired - Fee Related CA2245970C (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP1996/003798 WO1998029188A1 (fr) 1996-12-26 1996-12-26 Catalyseur pour epuration de gaz d'echappement et procede d'epuration de gaz de combustion
EP96942650A EP0888816B1 (fr) 1996-12-26 1996-12-26 Catalyseur pour epuration de gaz d'echappement et procede d'epuration de gaz de combustion
CA002245970A CA2245970C (fr) 1996-12-26 1996-12-26 Catalyseur de controle d'emission gaz d'echappement et procede pour controler l'emission de gaz d'echappement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP1996/003798 WO1998029188A1 (fr) 1996-12-26 1996-12-26 Catalyseur pour epuration de gaz d'echappement et procede d'epuration de gaz de combustion
CA002245970A CA2245970C (fr) 1996-12-26 1996-12-26 Catalyseur de controle d'emission gaz d'echappement et procede pour controler l'emission de gaz d'echappement

Publications (2)

Publication Number Publication Date
CA2245970A1 true CA2245970A1 (fr) 1998-07-09
CA2245970C CA2245970C (fr) 2002-03-19

Family

ID=4162771

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002245970A Expired - Fee Related CA2245970C (fr) 1996-12-26 1996-12-26 Catalyseur de controle d'emission gaz d'echappement et procede pour controler l'emission de gaz d'echappement

Country Status (1)

Country Link
CA (1) CA2245970C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118308609A (zh) * 2024-06-05 2024-07-09 湖南省银峰新能源有限公司 钒回收方法及装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118308609A (zh) * 2024-06-05 2024-07-09 湖南省银峰新能源有限公司 钒回收方法及装置

Also Published As

Publication number Publication date
CA2245970C (fr) 2002-03-19

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20161228