DE69108276D1 - Verwendung eines zeolitischen Katalysators zur Zersetzung von Stickoxiden in Abwesenheit eines reduzierenden Agens. - Google Patents

Verwendung eines zeolitischen Katalysators zur Zersetzung von Stickoxiden in Abwesenheit eines reduzierenden Agens.

Info

Publication number
DE69108276D1
DE69108276D1 DE69108276T DE69108276T DE69108276D1 DE 69108276 D1 DE69108276 D1 DE 69108276D1 DE 69108276 T DE69108276 T DE 69108276T DE 69108276 T DE69108276 T DE 69108276T DE 69108276 D1 DE69108276 D1 DE 69108276D1
Authority
DE
Germany
Prior art keywords
absence
reducing agent
nitrogen oxides
zeolitic catalyst
decompose 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.)
Expired - Fee Related
Application number
DE69108276T
Other languages
English (en)
Other versions
DE69108276T2 (de
Inventor
Shuichi Kagawa
Yasutake Teraoka
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.)
Tosoh Corp
Original Assignee
Tosoh Corp
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
Priority claimed from JP2056534A external-priority patent/JPH03258345A/ja
Priority claimed from JP3040575A external-priority patent/JPH04215847A/ja
Application filed by Tosoh Corp filed Critical Tosoh Corp
Application granted granted Critical
Publication of DE69108276D1 publication Critical patent/DE69108276D1/de
Publication of DE69108276T2 publication Critical patent/DE69108276T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
    • B01J29/072—Iron group metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9404—Removing only nitrogen compounds
    • B01D53/9409—Nitrogen oxides
    • B01D53/9413—Processes characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
    • B01J29/20—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type containing iron group metals, noble metals or copper
    • B01J29/24—Iron group metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2042—Barium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • B01D2255/2045—Calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/2073—Manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20746—Cobalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20753—Nickel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20761—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
DE1991608276 1990-03-09 1991-03-07 Verwendung eines zeolitischen Katalysators zur Zersetzung von Stickoxiden in Abwesenheit eines reduzierenden Agens. Expired - Fee Related DE69108276T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5653590 1990-03-09
JP2056534A JPH03258345A (ja) 1990-03-09 1990-03-09 窒素酸化物接触分解触媒及び接触分解方法
JP3040575A JPH04215847A (ja) 1990-03-09 1991-02-13 窒素酸化物接触分解触媒及び接触分解方法

Publications (2)

Publication Number Publication Date
DE69108276D1 true DE69108276D1 (de) 1995-04-27
DE69108276T2 DE69108276T2 (de) 1995-08-10

Family

ID=27290527

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1991608276 Expired - Fee Related DE69108276T2 (de) 1990-03-09 1991-03-07 Verwendung eines zeolitischen Katalysators zur Zersetzung von Stickoxiden in Abwesenheit eines reduzierenden Agens.

Country Status (2)

Country Link
EP (1) EP0445816B1 (de)
DE (1) DE69108276T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2046951A1 (en) * 1990-07-19 1992-01-20 Akinori Eshita Catalyst for purifying exhaust gas and method of using same
US5744113A (en) * 1993-05-27 1998-04-28 Siemens Aktiengesellschaft Process and catalyst for decomposing oxides of nitrogen
EP0628706A2 (de) * 1993-06-10 1994-12-14 Inco Limited Katalytische Umsetzung von Abgasen einer Brennkraftmaschine
FR2773087B1 (fr) * 1997-12-26 2000-02-11 Inst Francais Du Petrole Catalyseurs de reduction des oxydes d'azote dans un milieu oxydant, preparation et utilisation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713169A1 (de) * 1987-04-17 1988-11-03 Bayer Ag Verfahren und vorrichtung zur reduktion von stickoxiden
DE3723072A1 (de) * 1987-07-11 1989-01-19 Basf Ag Verfahren zur entfernung von stickoxiden aus abgasen
CA2024154C (en) * 1989-08-31 1995-02-14 Senshi Kasahara Catalyst for reducing nitrogen oxides from exhaust gas

Also Published As

Publication number Publication date
EP0445816A1 (de) 1991-09-11
EP0445816B1 (de) 1995-03-22
DE69108276T2 (de) 1995-08-10

Similar Documents

Publication Publication Date Title
DE59007453D1 (de) Verfahren zur Reduktion von in Abgasen enthaltenen Stickoxiden.
DE69427932D1 (de) Katalysator zur katalytischen Reduktion von Stickstoffoxiden
DE69207719D1 (de) Katalytische Zersetzung von N2O
FI923477A (fi) Katalytisk reduktion av nox under anvaendning av metan i naervaro av syre
FI942419A (fi) Menetelmä alfa-interferonin valmistamiseksi ja puhdistamiseksi
DE69308405D1 (de) Katalytisches Reaktorbett
DE58907982D1 (de) Verfahren zur Reduktion von in Abgasen enthaltenen Stickoxiden mittels eines zeolithhaltigen Katalysators.
DE69124063D1 (de) Verwendung eines Katalysators zur Entfernung von Stickoxiden aus Abgasen
DE59202574D1 (de) Verwendung eines Katalysators zur Verringerung der Partikelmenge und/oder -grösse im Dieselabgas.
DE69312883D1 (de) Katalysator zur katalytischen Reduktion von Stickstoffoxiden
DE69108648D1 (de) Katalysator zur Entfernung von gasförmigen Hydriden.
MX9200087A (es) Procedimiento de reactivacion de un catalizador para usarse en un proceso de termofraccionamiento.
MX9200086A (es) Procedimiento para la reactivacion de un catalizador para usarse en un proceso de termofraccionamiento.
EP0489472A3 (en) Carbonylation process and catalyst composition
ATE75969T1 (de) Verfahren zur katalytischen reduktion von stickoxiden.
ZA917226B (en) Catalyst decomposition of cyanuric acid and use of product to reduce nitrogen oxide emissions.
BR9305968A (pt) Solução catalítica
DE69108276D1 (de) Verwendung eines zeolitischen Katalysators zur Zersetzung von Stickoxiden in Abwesenheit eines reduzierenden Agens.
DE3483638D1 (de) Zirkon-titan-siliciumdioxid-tergele und ihre verwendung als katalysator-traeger.
DE69133164D1 (de) Vergiftungsbeständige katalytische Zusammensetzung
PL291486A1 (en) Method of isolatimg and purifying helium and method of regenerating the catalytic resin
AU7269991A (en) Catalyst and method for catalytically decomposing nitrogen oxides
FI944562A0 (fi) Vaunut
EP0470756A3 (en) Ruthenium-phosphine complex useful as catalyst and intermediate for synthesis thereof
ZA876230B (en) A catalyst for the reduction of nitrogen oxides in waste gases

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee