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AR006620A1 - Catalizador para la purificacion de gases de escape de motores diesel y uso del catalizador - Google Patents

Catalizador para la purificacion de gases de escape de motores diesel y uso del catalizador

Info

Publication number
AR006620A1
AR006620A1 ARP970101465A ARP970101465A AR006620A1 AR 006620 A1 AR006620 A1 AR 006620A1 AR P970101465 A ARP970101465 A AR P970101465A AR P970101465 A ARP970101465 A AR P970101465A AR 006620 A1 AR006620 A1 AR 006620A1
Authority
AR
Argentina
Prior art keywords
catalyst
purification
diesel engine
exhaust gases
engine exhaust
Prior art date
Application number
ARP970101465A
Other languages
English (en)
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of AR006620A1 publication Critical patent/AR006620A1/es

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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] 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
    • B01J29/80—Mixtures of different zeolites
    • 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
    • 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
    • B01J29/068—Noble metals
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • 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
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/16—After treatment, characterised by the effect to be obtained to increase the Si/Al ratio; Dealumination
    • 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
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • B01J29/084—Y-type faujasite
    • 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
    • B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural 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)

Abstract

La invención se relaciona con un catalizador para la purificación de gases de escape de motores diesel. El catalizador contiene una mezcla de zeolitas devarias zeolitas con diferentes módulos y metales del grupo del platino así como otros óxidos demetales del grupo silicato de aluminio, óxido de aluminio yóxido de titanio, donde el silicato de aluminio presenta una relación de pesos de dióxido silicio/óxido de aluminio de o,oo5 a 1 y los metales del grupo delplatino sólo están incrustadossob re los óxidos de metales adicionales.
ARP970101465A 1996-04-12 1997-04-11 Catalizador para la purificacion de gases de escape de motores diesel y uso del catalizador AR006620A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19614540A DE19614540A1 (de) 1996-04-12 1996-04-12 Dieselkatalysator

Publications (1)

Publication Number Publication Date
AR006620A1 true AR006620A1 (es) 1999-09-08

Family

ID=7791122

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP970101465A AR006620A1 (es) 1996-04-12 1997-04-11 Catalizador para la purificacion de gases de escape de motores diesel y uso del catalizador

Country Status (11)

Country Link
US (1) US5928981A (es)
EP (1) EP0800856B1 (es)
JP (1) JP3607036B2 (es)
KR (1) KR100485203B1 (es)
CN (1) CN1091002C (es)
AR (1) AR006620A1 (es)
CA (1) CA2202417C (es)
DE (2) DE19614540A1 (es)
ES (1) ES2203731T3 (es)
IN (1) IN191059B (es)
TW (1) TW394704B (es)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709102A1 (de) 1997-03-06 1998-10-08 Degussa Katalysatorsystem zur Abgasreinigung von Dieselmotoren
US6191061B1 (en) * 1997-04-23 2001-02-20 Toyota Jidosha Kabushiki Kaisha Method of purifying exhaust gas and catalyst for purifying exhaust gas
DE19718727C2 (de) * 1997-05-02 2001-01-04 Degussa Verfahren zur Behandlung des Abgases eines Dieselmotors zur Verminderung der Partikelemission
AUPO787797A0 (en) * 1997-07-15 1997-08-07 University Of Queensland, The Catalytic conversion of gases via cation-exchangeable alumino-silicate materials
JP3417309B2 (ja) * 1997-10-28 2003-06-16 トヨタ自動車株式会社 炭化水素吸着材
DE19753738A1 (de) * 1997-12-04 1999-06-10 Degussa Verfahren zur Herstellung eines Katalysators
AR019182A1 (es) * 1998-07-04 2001-12-26 Degussa Huls Aktiengesellscahft Catalizador para reduccion de oxidos de nitrogeno en atmosfera oxidante y reductora, procedimiento para la preparacion de un catalizador , y empleo delcatalizador.
DE19854794A1 (de) * 1998-11-27 2000-05-31 Degussa Katalysator für die Reinigung der Abgase eines Dieselmotors
EP1273336B1 (en) * 1998-12-25 2008-01-23 Tosoh Corporation Process for removing organic compounds using combustion catalysts
DE19908394A1 (de) * 1999-02-26 2000-08-31 Degussa Katalysatormaterial und Verfahren zu seiner Herstellung
DE19919472C2 (de) 1999-04-29 2001-04-19 Bosch Gmbh Robert Vorrichtung und Verfahren zur Detektion von Ammoniak
KR20010037201A (ko) * 1999-10-14 2001-05-07 이계안 디젤 자동차용 촉매
US6294389B1 (en) * 1999-11-01 2001-09-25 General Motors Corporation Furnace for an engine exhaust measurement system
JP3559858B2 (ja) * 2000-02-07 2004-09-02 東ソー株式会社 有機化合物燃焼除去触媒および燃焼除去法
DK1129764T3 (da) 2000-03-01 2006-01-23 Umicore Ag & Co Kg Katalysator til rensning af udstödningsgas fra dieselmotorer og fremgangsmåde til dens fremstilling
JP4642978B2 (ja) * 2000-08-08 2011-03-02 株式会社キャタラー 排ガス浄化用触媒
US6799578B2 (en) 2000-09-18 2004-10-05 Rothmans, Benson & Hedges Inc. Low sidestream smoke cigarette with combustible paper
DE10103771A1 (de) 2001-01-27 2002-08-14 Omg Ag & Co Kg Verfahren zur Wiederherstellung der katalytischen Aktivität eines Katalysators, welcher im Abgastrakt eines Dieselmotors angeordnet ist und wenigstens eine Oxidationsfunktion aufweist
EP1287886A1 (de) * 2001-08-09 2003-03-05 OMG AG & Co. KG Katalysator für die Reinigung der Abgase eines Verbrennungsmotors
ATE332746T1 (de) * 2001-09-14 2006-08-15 Rothmans Benson & Hedges Verfahren zur herstellung von mikroporösen materialien, welche mit oxiden der seltenen erdmetalle beschichtet sind
JP4317345B2 (ja) * 2002-02-26 2009-08-19 株式会社日本触媒 低濃度ｃｏ含有排ガス処理方法
NZ552999A (en) * 2002-03-15 2008-06-30 Rothmans Benson & Hedges Low sidestream smoke cigarette with combustible paper having modified ash characteristics
CN100398791C (zh) * 2002-11-08 2008-07-02 排放技术有限公司 排气装置及其运行方法
DE10308288B4 (de) * 2003-02-26 2006-09-28 Umicore Ag & Co. Kg Verfahren zur Entfernung von Stickoxiden aus dem Abgas eines mager betriebenen Verbrennungsmotors und Abgasreinigungsanlage hierzu
FI118418B (fi) 2003-04-17 2007-11-15 Ecocat Oy Alumiinioksidipohjainen katalyytti poistekaasujen puhdistukseen
JP4210552B2 (ja) * 2003-05-06 2009-01-21 株式会社アイシーティー ディーゼルエンジン排ガス浄化用触媒およびその製造方法
DE10322148B4 (de) * 2003-05-16 2006-11-02 Umicore Ag & Co. Kg Abgasreinigungsanlage mit Partikelfilter und Verfahren zu ihrem Betrieb mit verbesserter Regeneration des Partikelfilters
US7229597B2 (en) * 2003-08-05 2007-06-12 Basfd Catalysts Llc Catalyzed SCR filter and emission treatment system
FR2860989B1 (fr) * 2003-10-17 2006-02-03 Renault Sa Procede pour vieillir artificiellement un catalyseur de traitement de gaz d'echappement de vehicule
US7541012B2 (en) * 2004-07-07 2009-06-02 The Hong Kong University Of Science And Technology Catalytic material and method of production thereof
JP4526907B2 (ja) * 2004-09-15 2010-08-18 エヌ・イーケムキャット株式会社 排ガス浄化用チタニア系酸化触媒、排ガス浄化用触媒構造体および排ガス浄化方法
DE102005022209B4 (de) * 2005-05-13 2008-01-03 Audi Ag Verfahren zur Regeneration eines einer Brennkraftmaschine, insbesondere einer Diesel-Brennkraftmaschine, nachgeschalteten Stickoxid-Speicherkatalysators
US20070037041A1 (en) * 2005-08-12 2007-02-15 Gm Global Technology Operations, Inc. Electrocatalyst Supports for Fuel Cells
JP4695962B2 (ja) * 2005-10-20 2011-06-08 エヌ・イーケムキャット株式会社 排気ガス浄化用酸化触媒、それを用いた一体構造型酸化触媒及び排気ガス浄化方法
WO2008143851A1 (en) * 2007-05-18 2008-11-27 Tribute Creations, Llc Reactor with differentially distributed catalytic activity
DE102007057305A1 (de) 2007-11-28 2009-06-04 Süd-Chemie AG Beschichtungszusammensetzung für Dieseloxidationskatalysatoren
EP2070581A1 (en) 2007-12-10 2009-06-17 HTE Aktiengesellschaft The High Throughput Experimentation Company Oxidation catalyst containing Pt and Pd
EP2112339A1 (de) * 2008-04-24 2009-10-28 Umicore AG & Co. KG Verfahren und Vorrichtung zur Reinigung von Abgasen eines Verbrennungsmotors
BRPI0914166B1 (pt) * 2008-06-19 2017-07-18 Umicore Ag & Co. Kg Oxidation catalyst for diesel engine commercial vehicles
CN101474521B (zh) * 2008-12-30 2012-11-07 中国科学院长春应用化学研究所 一种室内空气净化方法
DE102009006403A1 (de) 2009-01-28 2010-08-05 Süd-Chemie AG Vanadiumfreier Diesel-Oxidationskatalysator und Verfahren zu dessen Herstellung
DE102009006404B3 (de) 2009-01-28 2010-08-26 Süd-Chemie AG Diesel-Oxidationskatalysator mit guter Tieftemperaturaktivität
DE102009015592A1 (de) 2009-03-30 2010-10-07 Süd-Chemie AG Alterungsstabiler Katalysator zur Oxidation von NO zu NO2 in Abgasströmen
US8246923B2 (en) 2009-05-18 2012-08-21 Umicore Ag & Co. Kg High Pd content diesel oxidation catalysts with improved hydrothermal durability
US8557203B2 (en) 2009-11-03 2013-10-15 Umicore Ag & Co. Kg Architectural diesel oxidation catalyst for enhanced NO2 generator
JP5683598B2 (ja) 2009-11-12 2015-03-11 ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフトＵｍｉｃｏｒｅ ＡＧ ＆ Ｃｏ．ＫＧ 改良型ディーゼル用酸化触媒
DE102009053919A1 (de) 2009-11-18 2011-05-26 Süd-Chemie AG Verfahren zur Herstellung eines Palladium/Platin-Katalysators
CN107008261B (zh) * 2010-02-01 2020-05-19 约翰逊马西有限公司 NOx吸收催化剂
DE102011101079B4 (de) 2011-05-10 2020-08-20 Umicore Ag & Co. Kg Verfahren zur Regeneration von NOx-Speicherkatalysatoren von Dieselmotoren mit Niederdruck-AGR
DE102011107692B3 (de) 2011-07-13 2013-01-03 Umicore Ag & Co. Kg Verfahren zur Reaktivierung von Abgasreinigungsanlagen von Dieselmotoren mit Niederdruck-AGR
WO2013149881A1 (de) 2012-04-05 2013-10-10 Umicore Ag & Co. Kg Verfahren zur entfernung von kohlenmonoxid und kohlenwasserstoff aus dem abgas mager betriebener verbrennungsmotoren
CN103071524B (zh) * 2013-01-30 2015-05-13 上海歌地催化剂有限公司 用于净化柴油机废气的氧化催化剂及其制备方法
EP2772302A1 (en) 2013-02-27 2014-09-03 Umicore AG & Co. KG Hexagonal oxidation catalyst
DE102013221423A1 (de) 2013-10-22 2015-04-23 Umicore Ag & Co. Kg Katalysator zur Oxidation von CO und HC bei niedrigen Temperaturen
RU2576568C2 (ru) * 2013-12-30 2016-03-10 Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук (ИХ ДВО РАН) Способ получения прекурсора на основе гидратированного диоксида титана с наноразмерными металлическими частицами палладия для каталитически активного покрытия на инертном носителе
DE102019100107A1 (de) 2019-01-04 2020-07-09 Umicore Ag & Co. Kg Katalytisch aktives Filtersubstrat und Verfahren zur Herstellung sowie deren Verwendung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3731688A1 (de) * 1987-09-21 1989-03-30 Degussa Verfahren zur katalytischen umsetzung von kohlenwasserstoff, halogenkohlenwasserstoff und kohlenmonoxid enthaltenden abgasen
JP2598127B2 (ja) * 1989-03-29 1997-04-09 帝人株式会社 キシレンの異性化方法
DE3940758A1 (de) * 1989-12-09 1991-06-13 Degussa Verfahren zur reinigung der abgase von dieselmotoren
US5085762A (en) * 1990-07-05 1992-02-04 Mobil Oil Corporation Catalytic cracking of hydrocarbons
US5118889A (en) * 1991-10-21 1992-06-02 Shell Oil Company Process for preparing allyl chloride
DE4206699C2 (de) * 1992-03-04 1996-02-01 Degussa NO¶x¶-Verminderung im mageren Abgas von Kraftfahrzeugmotoren
DE4213018C1 (de) * 1992-04-21 1993-12-09 Degussa Katalysator zur oxidativen Reinigung der Abgase von Dieselmotoren
DE4226394C2 (de) * 1992-08-10 1999-01-21 Degussa Verfahren zur katalytischen Autoabgasreinigung mit verbessertem Kaltstartverhalten
DE4239875C2 (de) * 1992-11-27 1999-02-11 Degussa Abgasreinigungssystem zur Verminderung der Kohlenwasserstoff-Emissionen während des Kaltstarts von Verbrennungskraftmaschinen
JP3411942B2 (ja) * 1993-09-30 2003-06-03 マツダ株式会社 排気ガス浄化用のｈｃ吸着剤、排気ガス浄化用触媒及び排気ガス浄化装置
DE4436890A1 (de) * 1994-10-15 1996-04-18 Degussa Verfahren zur gleichzeitigen Verminderung der im Abgas einer Verbrennungskraftmaschine enthaltenen Kohlenwasserstoffe, Kohlenmonoxid und Stickoxide
EP0716877A1 (en) * 1994-12-13 1996-06-19 Johnson Matthey Public Limited Company Catalytic purification of engine exhaust gas

Also Published As

Publication number Publication date
CN1162501A (zh) 1997-10-22
ES2203731T3 (es) 2004-04-16
JP3607036B2 (ja) 2005-01-05
US5928981A (en) 1999-07-27
JPH1033986A (ja) 1998-02-10
DE59710489D1 (de) 2003-09-04
IN191059B (es) 2003-09-13
EP0800856A3 (de) 1998-11-04
CA2202417A1 (en) 1997-10-12
CN1091002C (zh) 2002-09-18
DE19614540A1 (de) 1997-10-16
EP0800856B1 (de) 2003-07-30
KR100485203B1 (ko) 2005-08-17
CA2202417C (en) 2006-08-15
KR970069126A (ko) 1997-11-07
EP0800856A2 (de) 1997-10-15
TW394704B (en) 2000-06-21
MX9702631A (es) 1997-10-31

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