ES2162642T3 - Catalizador de reduccion de oxidos de nitrogeno y procedimiento para la reduccion de oxidos de nitrogeno en un gas de escape. - Google Patents

Catalizador de reduccion de oxidos de nitrogeno y procedimiento para la reduccion de oxidos de nitrogeno en un gas de escape.

Info

Publication number
ES2162642T3
ES2162642T3 ES96105332T ES96105332T ES2162642T3 ES 2162642 T3 ES2162642 T3 ES 2162642T3 ES 96105332 T ES96105332 T ES 96105332T ES 96105332 T ES96105332 T ES 96105332T ES 2162642 T3 ES2162642 T3 ES 2162642T3
Authority
ES
Spain
Prior art keywords
catalyst
nox
nitrogen oxide
oxide reduction
present
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 - Lifetime
Application number
ES96105332T
Other languages
English (en)
Inventor
Giuseppe Bellussi
Luigina Maria Flora Sabatino
Takeshi Tabata
Mikako Kokitsu
Osamu Okada
Hirofumi Ohtsuka
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.)
Eni Tecnologie SpA
Osaka Gas Co Ltd
Original Assignee
Eni Tecnologie SpA
Osaka Gas 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 Eni Tecnologie SpA, Osaka Gas Co Ltd filed Critical Eni Tecnologie SpA
Application granted granted Critical
Publication of ES2162642T3 publication Critical patent/ES2162642T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—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
    • B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/104—Silver
    • 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
    • B01D2255/206—Rare earth metals
    • B01D2255/2063—Lanthanum
    • 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
    • B01D2255/20746—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
    • B01D2255/50—Zeolites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

EL OBJETO DE LA INVENCION SUMINISTRA UN CATALIZADOR PARA REDUCIR LOS OXIDOS DE NITROGENO (NO{SUB, X}) EN LOS GASES DE ESCAPE Y UN PROCESO DE REDUCCION DEL NO{SUB, X} QUE UTILIZA ESTE CATALIZADOR. EL CATALIZADOR DE REDUCCION DEL NO{SUB, X} DE ACUERDO CON LA INVENCION COMPRENDE ZEOLITO BEA QUE HA SUFRIDO UN PROCESO DE INTERCAMBIO DE IONES CON CO PARA TENER UNA RELACION CO/AL ENTRE 0.2 Y 0.6 Y ESTA CARGADO CON AL MENOS UN METAL SELECCIONADO ENTRE CA, SR, BA, LA, MN, AG, IN Y NI. EL PROCESO DE REDUCCION DEL NO{SUB, X} DE ACUERDO CON LA INVENCION COMPRENDE EL USO DEL CATALIZADOR DE LA INVENCION. EL CATALIZADOR SUMINISTRA UNA ALTA ACTIVIDAD Y DURABILIDAD A BAJA TEMPERATURA EN UN GAS DE ESCAPE ACTUAL QUE CONTENGA VAPOR DE AGUA Y OTRAS SUBSTANCIAS QUE PERTURBEN LA ACTIVIDAD CATALITICA. ADEMAS, EL SEGUNDO METAL AÑADIDO AL CATALIZADOR MEJORA MODERADAMENTE LA VELOCIDAD DE OXIDACION A BAJA TEMPERATURA, Y PROMUEVE LA ABSORCION DEL NO{SUB, X} SOBRE EL CATALIZADOR, INCREMENTA LA SELECTIVIDAD DE REDUCCIONDEL NO{SUB, X}. DE ESTA FORMA, ES POSIBLE OBTENER UNA ALTA CONVERSION DE NO{SUB, X} INCLUSO A MENORES TEMPERATURAS Y A UNA BAJA CONCENTRACION DE NO{SUB, X} E HIDROCARBONOS.
ES96105332T 1995-04-17 1996-04-03 Catalizador de reduccion de oxidos de nitrogeno y procedimiento para la reduccion de oxidos de nitrogeno en un gas de escape. Expired - Lifetime ES2162642T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11641295 1995-04-17
JP11911495 1995-04-19

Publications (1)

Publication Number Publication Date
ES2162642T3 true ES2162642T3 (es) 2002-01-01

Family

ID=26454746

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96105332T Expired - Lifetime ES2162642T3 (es) 1995-04-17 1996-04-03 Catalizador de reduccion de oxidos de nitrogeno y procedimiento para la reduccion de oxidos de nitrogeno en un gas de escape.

Country Status (11)

Country Link
US (1) US5993764A (es)
EP (1) EP0739651B1 (es)
JP (1) JPH10503711A (es)
KR (1) KR100422193B1 (es)
AT (1) ATE204201T1 (es)
CA (1) CA2192935A1 (es)
DE (1) DE69614438T2 (es)
DK (1) DK0739651T3 (es)
ES (1) ES2162642T3 (es)
PT (1) PT739651E (es)
WO (1) WO1996033004A1 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2162642T3 (es) * 1995-04-17 2002-01-01 Enitecnologie Spa Catalizador de reduccion de oxidos de nitrogeno y procedimiento para la reduccion de oxidos de nitrogeno en un gas de escape.
DE69629258T2 (de) * 1995-10-06 2004-04-22 Enitecnologie S.P.A. Katalysator und Verfahren zur Entfernung von Stickstoffoxiden in Abgas
RU2108140C1 (ru) * 1996-06-24 1998-04-10 Александр Юрьевич Логинов Способ очистки отработавших газов
FR2754468B1 (fr) * 1996-10-10 2001-12-14 Gaz De France Catalyseur, en particulier de reduction des nox, et procede de reduction des nox
AU1235501A (en) 1999-10-28 2001-05-08 Regents Of The University Of California, The Catalysts for lean burn engine exhaust abatement
US6555492B2 (en) * 1999-12-29 2003-04-29 Corning Incorporated Zeolite/alumina catalyst support compositions and method of making the same
US6662951B1 (en) 2000-09-27 2003-12-16 Basic Resources, Inc. Process for extracting and purifying naturally occurring zeolite
US20020111266A1 (en) * 2000-12-15 2002-08-15 Labarge William J. Nitrogen oxide catalyst
US7022637B2 (en) * 2001-01-29 2006-04-04 Bp Corporation North America Inc. Selective methylation catalyst, method of catalyst manufacture and methylation process
US7094722B2 (en) * 2002-12-20 2006-08-22 Caterpillar Inc. NOx catalyst and method of suppressing sulfate formation in an exhaust purification system
KR100597961B1 (ko) * 2003-04-24 2006-07-06 한국남부발전 주식회사 고정원에서 발생되는 이산화질소 가시매연 저감방법
CN100355488C (zh) * 2003-05-07 2007-12-19 韩国高化环保技术有限公司 通过多次喷射还原氮氧化物的催化方法及其用法
US7399729B2 (en) * 2003-12-22 2008-07-15 General Electric Company Catalyst system for the reduction of NOx
US8318629B2 (en) * 2004-10-14 2012-11-27 Catalytic Solutions, Inc. Platinum group metal-free catalysts for reducing the ignition temperature of particulates on a diesel particulate filter
US9889437B2 (en) * 2015-04-15 2018-02-13 Basf Corporation Isomorphously substituted catalyst
US10850265B2 (en) * 2014-06-18 2020-12-01 Basf Corporation Molecular sieve catalyst compositions, catalytic composites, systems, and methods
US9764313B2 (en) 2014-06-18 2017-09-19 Basf Corporation Molecular sieve catalyst compositions, catalyst composites, systems, and methods
CZ305861B6 (cs) * 2014-06-27 2016-04-13 Ústav fyzikální chemie J. Heyrovského AV ČR, v. v. i. Katalyzátor pro selektivní katalytickou redukci oxidů dusíku, způsob jeho výroby a použití

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308069A (en) * 1964-05-01 1967-03-07 Mobil Oil Corp Catalytic composition of a crystalline zeolite
DE3222143A1 (de) * 1982-06-11 1983-12-15 Basf Ag, 6700 Ludwigshafen Kobalt enthaltende traegerkatalysatoren, deren herstellung und verwendung
JPH0611381B2 (ja) * 1986-10-17 1994-02-16 株式会社豊田中央研究所 排ガス浄化方法
DE3713169A1 (de) * 1987-04-17 1988-11-03 Bayer Ag Verfahren und vorrichtung zur reduktion von stickoxiden
US4867954A (en) * 1988-04-07 1989-09-19 Uop Catalytic reduction of nitrogen oxides
JPH07106300B2 (ja) * 1989-12-08 1995-11-15 財団法人産業創造研究所 燃焼排ガス中の窒素酸化物除去法
JP3143936B2 (ja) * 1991-02-15 2001-03-07 東ソー株式会社 排気ガス浄化触媒および排気ガス浄化方法
US5260043A (en) * 1991-08-01 1993-11-09 Air Products And Chemicals, Inc. Catalytic reduction of NOx and carbon monoxide using methane in the presence of oxygen
US5149512A (en) * 1991-08-01 1992-09-22 Air Products And Chemicals, Inc. Catalytic reduction of NOx using methane in the presence of oxygen
US5451385A (en) * 1991-08-01 1995-09-19 Air Products And Chemicals, Inc. Control of exhaust emissions from methane-fueled internal combustion engines
JP3086015B2 (ja) * 1991-08-07 2000-09-11 トヨタ自動車株式会社 排気ガス浄化用触媒
US5171553A (en) * 1991-11-08 1992-12-15 Air Products And Chemicals, Inc. Catalytic decomposition of N2 O
JPH05220403A (ja) * 1991-12-16 1993-08-31 Toyota Motor Corp 排気ガス浄化用触媒
US5316661A (en) * 1992-07-08 1994-05-31 Mobil Oil Corporation Processes for converting feedstock organic compounds
AU668614B2 (en) * 1992-12-24 1996-05-09 Tosoh Corporation Process for removing nitrogen oxides from oxygen rich exhaust gas
JPH06210171A (ja) * 1993-01-13 1994-08-02 Sumitomo Metal Mining Co Ltd 脱 硝 触 媒
DK0945166T3 (da) * 1993-11-04 2005-01-24 Enitecnologie Spa Katalysator til reduktion af NOx i forbrændingsgasser
IT1266666B1 (it) * 1993-11-04 1997-01-09 Eniricerche Spa Processo per la riduzione catalitica di nox nei fumi di combustione
JPH11221469A (ja) * 1995-03-17 1999-08-17 Osaka Gas Co Ltd 窒素酸化物還元用触媒及び排ガス中の窒素酸化物の還元方法
ES2162642T3 (es) * 1995-04-17 2002-01-01 Enitecnologie Spa Catalizador de reduccion de oxidos de nitrogeno y procedimiento para la reduccion de oxidos de nitrogeno en un gas de escape.

Also Published As

Publication number Publication date
JPH10503711A (ja) 1998-04-07
DE69614438T2 (de) 2002-06-13
CA2192935A1 (en) 1996-10-24
PT739651E (pt) 2002-02-28
EP0739651A1 (en) 1996-10-30
DE69614438D1 (de) 2001-09-20
WO1996033004A1 (en) 1996-10-24
DK0739651T3 (da) 2001-12-10
KR970703800A (ko) 1997-08-09
ATE204201T1 (de) 2001-09-15
KR100422193B1 (ko) 2004-05-24
EP0739651B1 (en) 2001-08-16
US5993764A (en) 1999-11-30

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