MX9708222A - Metodo para reducir nox y preparacion de su material catalitico. - Google Patents

Metodo para reducir nox y preparacion de su material catalitico.

Info

Publication number
MX9708222A
MX9708222A MX9708222A MX9708222A MX9708222A MX 9708222 A MX9708222 A MX 9708222A MX 9708222 A MX9708222 A MX 9708222A MX 9708222 A MX9708222 A MX 9708222A MX 9708222 A MX9708222 A MX 9708222A
Authority
MX
Mexico
Prior art keywords
platinum
percent
molecular sieve
reductant
sieve material
Prior art date
Application number
MX9708222A
Other languages
English (en)
Inventor
Michel Deeba
Jennifer S Feeley
Robert J Farrauto
Original Assignee
Engelhard 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
Application filed by Engelhard Corp filed Critical Engelhard Corp
Publication of MX9708222A publication Critical patent/MX9708222A/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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—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
    • B01J29/40—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
    • B01J29/42—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 containing iron group metals, noble metals or copper
    • B01J29/44—Noble metals
    • 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
    • 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
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • 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
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • 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
    • B01D2255/102—Platinum group metals
    • B01D2255/1026—Ruthenium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B01D2255/502—Beta zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B01D2255/504—ZSM 5 zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/912—HC-storage component incorporated in the catalyst
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Landscapes

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

Abstract

Se lleva a cabo un método para reducir los oxidos de nitrogeno gaseoso presentes en una corriente de gas mediante la reaccion con especies de agentes reductores al hacer fluir la corriente de gas bajo condiciones reducidas de NOx pobre en contacto con un material catalítico que contiene una cantidad catalíticamente efectiva de especies catalíticas, por ejemplo, un metal del grupo de platino, y un material de almacenamiento de un agente reductor, por ejemplo, zeolita, efectivo para almacenar especies de agentes reductores para la reaccion con NOx y proporcionar un suministro intermitente del agente reductor a la corriente de gas. El material catalítico puede estar preparado en cualquier manera, pero un método es incorporar una cantidad catalíticamente efectiva de platino en un material de cedazo molecular que lleva un modelo, preferiblemente ZSM-5, para impedir que el platino sea incorporado en los poros del material de cedazo molecular, y posteriormente calcinar el material de cedazo molecular, por medio del cual el modelo o plantilla es retirada del material de cedazo molecular después de que el platino es incorporado en el mismo. Otro método es agregar un agente bloqueador al material de cedazo molecular, posteriormente incorporar el platino en el mismo, y luego calcinar el material para retirar el agente bloqueador. El material catalítico puede contener aproximadamente menos del dos por ciento en peso de zeolita más platino, por ejemplo, aproximadamente menos de 0.5% o aproximadamente 0.025% en 0.1% o 0.2% de platino.
MX9708222A 1995-04-27 1996-03-15 Metodo para reducir nox y preparacion de su material catalitico. MX9708222A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/430,065 US6080377A (en) 1995-04-27 1995-04-27 Method of abating NOx and a catalytic material therefor
PCT/US1996/003477 WO1996033796A1 (en) 1995-04-27 1996-03-15 METHOD OF ABATING NOx AND PREPARATION OF CATALYTIC MATERIAL THEREFOR

Publications (1)

Publication Number Publication Date
MX9708222A true MX9708222A (es) 1997-12-31

Family

ID=23705922

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9708222A MX9708222A (es) 1995-04-27 1996-03-15 Metodo para reducir nox y preparacion de su material catalitico.

Country Status (12)

Country Link
US (2) US6080377A (es)
EP (1) EP0822855A1 (es)
JP (1) JPH11504258A (es)
KR (1) KR19990008062A (es)
CN (1) CN1182376A (es)
AU (1) AU5422496A (es)
BR (1) BR9608193A (es)
CA (1) CA2217478A1 (es)
IN (1) IN187764B (es)
MX (1) MX9708222A (es)
WO (1) WO1996033796A1 (es)
ZA (1) ZA963065B (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0895802B1 (de) * 1997-08-08 2004-10-06 Volkswagen Aktiengesellschaft DeNOx-Katalyse
KR100284936B1 (ko) * 1998-12-31 2001-04-02 김충섭 촉매 활성 귀금속 담지 제올라이트계 탈질 촉매의 제조 방법
US6613708B1 (en) * 1999-06-07 2003-09-02 Exxonmobil Chemical Patents Inc. Catalyst selectivation
US6528689B2 (en) * 2000-11-20 2003-03-04 Council Of Scientific And Industrial Research Noble metal containing hydrogenation catalyst for selective hydrogenation of 1, 4 butynediol to 1, 4 butenediol, and a process for the preparation thereof
US6759358B2 (en) 2001-08-21 2004-07-06 Sud-Chemie Inc. Method for washcoating a catalytic material onto a monolithic structure
US6921594B2 (en) * 2001-12-19 2005-07-26 Sud-Chemie Inc. Exhaust treatment and filtration system for molten carbonate fuel cells
US6912847B2 (en) * 2001-12-21 2005-07-05 Engelhard Corporation Diesel engine system comprising a soot filter and low temperature NOx trap
US6999777B1 (en) 2001-12-21 2006-02-14 Verizon Corporate Services Group Inc. Method for providing location information of a wireless communication device
JP3994862B2 (ja) * 2002-06-17 2007-10-24 住友金属鉱山株式会社 排ガス浄化触媒及び浄化方法
US7055311B2 (en) * 2002-08-31 2006-06-06 Engelhard Corporation Emission control system for vehicles powered by diesel engines
US20050054526A1 (en) * 2003-09-08 2005-03-10 Engelhard Corporation Coated substrate and process of preparation thereof
US20100290963A1 (en) 2007-04-26 2010-11-18 Johnson Matthey Public Limited Company Transition metal / zeolite scr catalysts
US8910468B2 (en) * 2009-02-04 2014-12-16 Mitsubishi Heavy Industries, Ltd. Exhaust gas treatment catalyst, exhaust gas treatment method, and exhaust gas treatment apparatus
CN101485980B (zh) * 2009-02-27 2012-09-05 中国科学院大连化学物理研究所 沸石和氧化还原氧化物组合催化剂结构体
JP6370713B2 (ja) 2012-02-06 2018-08-08 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ 窒素酸化物を含有するガスストリームを処理する方法および装置
JP7158141B2 (ja) * 2017-11-27 2022-10-21 エヌ・イーケムキャット株式会社 触媒用スラリー組成物及びその製造方法、これを用いた触媒の製造方法、並びに、Ｃｕ含有ゼオライトの製造方法
CN112657540A (zh) * 2019-10-15 2021-04-16 中国石油化工股份有限公司 甲苯歧化及烷基转移催化剂及其制备方法和应用
CN112156630B (zh) * 2020-10-10 2022-02-08 清华大学 一种500-900度脱硝增效方法

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756151A (fr) * 1969-09-16 1971-02-15 Johnson Matthey & Cy Ltd Perfectionnements relatifs a la catalyse
US3784675A (en) * 1971-08-02 1974-01-08 Gulf Research Development Co Process for reducing the content of nitrogen oxides in the exhaust gases from internal combustion engines
US3809743A (en) * 1972-01-07 1974-05-07 Monsanto Co Process for treating automotive exhaust
US3801697A (en) * 1972-03-02 1974-04-02 Gulf Research Development Co Process for reducing the content of nitrogen oxides in the exhaust gases from internal combustion engines
US4105590A (en) * 1972-03-25 1978-08-08 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Catalysts and the process for their production
US3907968A (en) * 1972-12-29 1975-09-23 Gulf Research Development Co Process for reducing the content of nitrogen oxides in a gaseous mixture containing the same
JPS5017394A (es) * 1973-06-20 1975-02-24
US4552733A (en) * 1975-08-27 1985-11-12 Engelhard Corporation Polyfunctional catalysts and method of use
US4206087A (en) * 1977-01-06 1980-06-03 Engelhard Minerals & Chemicals Corporation Catalyst for reducing pollutants in waste gas streams and process for preparing the catalyst
GB1586530A (en) * 1977-05-31 1981-03-18 Caterpillar Tractor Co Two-stage catalysts of engine exhaust
JPS5610333A (en) * 1979-07-06 1981-02-02 Toyota Motor Corp Catalyst for cleaning up exhaust gas and manufacture of said catalyst
JPS5610334A (en) * 1979-07-06 1981-02-02 Toyota Motor Corp Catalyst for cleaning up exhaust gas and manufacture of said catalyst
US4431746A (en) * 1981-06-26 1984-02-14 Mobil Oil Corporation Preparing metal-exchanged highly siliceous porous crystalline materials
CA1185953A (en) * 1981-06-30 1985-04-23 Muin S. Haddad Method for manufacture of ams-1b crystalline borosilicate molecular sieve
US4380510A (en) * 1981-11-04 1983-04-19 General Motors Corporation Method of making layered catalysts
DE3640025A1 (de) * 1985-11-26 1987-05-27 Toyota Motor Co Ltd Monolithischer katalysatortraeger und monolithischer katalysator fuer die verwendung zum reinigen von auspuffgasen
US4880764A (en) * 1986-06-06 1989-11-14 Uop Dehydrogenation catalyst and process
JPS6377543A (ja) * 1986-09-17 1988-04-07 Toyota Motor Corp 排気ガス浄化用触媒
US4902664A (en) * 1987-08-13 1990-02-20 Engelhard Corporation Thermally stabilized catalysts containing alumina and methods of making the same
JP2660412B2 (ja) * 1987-11-19 1997-10-08 トヨタ自動車株式会社 排気ガス浄化方法
US5202300A (en) * 1988-02-18 1993-04-13 Engelhard Corporation Catalyst for purification of exhaust gas
DE3825206A1 (de) * 1988-07-25 1990-02-01 Degussa Verfahren zur katalytischen entstickung von abgasen mittels eines reduktionsmittels
US4977129A (en) * 1989-03-13 1990-12-11 W. R Grace & Co.-Conn. Auto exhaust catalyst composition having low H2 S emissions and method of making the catalyst
CA2011484C (en) * 1989-04-19 1997-03-04 Joseph C. Dettling Palladium-containing, ceria-supported platinum catalyst and catalyst assembly including the same
US5024981A (en) * 1989-04-20 1991-06-18 Engelhard Corporation Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same
JP2909553B2 (ja) * 1989-10-18 1999-06-23 トヨタ自動車株式会社 排気ガス浄化用触媒及び排気ガスの浄化方法
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
JP2666508B2 (ja) * 1990-02-21 1997-10-22 トヨタ自動車株式会社 内燃機関の排気浄化装置
US5078979A (en) * 1990-07-20 1992-01-07 Uop Molecular sieve bed/catalyst to treat automotive exhaust
US5208198A (en) * 1990-12-18 1993-05-04 Tosoh Corporation Catalyst for purifying exhaust gas
JPH04243525A (ja) * 1991-01-22 1992-08-31 Toyota Motor Corp 内燃機関の排気浄化装置
JP2887933B2 (ja) * 1991-03-13 1999-05-10 トヨタ自動車株式会社 内燃機関の排気浄化装置
CA2064977C (en) * 1991-04-05 1998-09-22 Eiichi Shiraishi Catalyst for purifying exhaust gas
US5208205A (en) * 1991-10-07 1993-05-04 Ford Motor Company Catalyst system for converting emissions of a lean-burn engine
JPH05106430A (ja) * 1991-10-16 1993-04-27 Toyota Central Res & Dev Lab Inc 内燃機関の窒素酸化物低減装置
JP2783074B2 (ja) * 1991-10-29 1998-08-06 トヨタ自動車株式会社 内燃機関の排気浄化装置
US5376610A (en) * 1992-04-15 1994-12-27 Nissan Motor Co., Ltd. Catalyst for exhaust gas purification and method for exhaust gas purification
JP3306930B2 (ja) * 1992-07-03 2002-07-24 株式会社デンソー 内燃機関の空燃比制御装置
JP2605586B2 (ja) * 1992-07-24 1997-04-30 トヨタ自動車株式会社 内燃機関の排気浄化装置
US5433074A (en) * 1992-07-30 1995-07-18 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device for an engine
JP2605553B2 (ja) * 1992-08-04 1997-04-30 トヨタ自動車株式会社 内燃機関の排気浄化装置
US5362463A (en) * 1992-08-26 1994-11-08 University Of De Process for removing NOx from combustion zone gases by adsorption
DE69427602T2 (de) * 1993-01-11 2001-11-22 Cataler Industrial Co., Ltd. Verfahren zur Reinigung von Abgasen
JP3185448B2 (ja) * 1993-03-11 2001-07-09 日産自動車株式会社 排気ガス浄化用触媒
DE69435061T2 (de) * 1993-06-25 2008-12-18 Basf Catalysts Llc Katalysatorzusammensetzung
JPH07108172A (ja) * 1993-10-12 1995-04-25 Toyota Motor Corp 排気ガス浄化用触媒及びその製造方法
JPH0810575A (ja) * 1994-06-30 1996-01-16 Toyota Central Res & Dev Lab Inc 窒素酸化物還元方法

Also Published As

Publication number Publication date
AU5422496A (en) 1996-11-18
CA2217478A1 (en) 1996-10-31
WO1996033796A1 (en) 1996-10-31
EP0822855A1 (en) 1998-02-11
US6150291A (en) 2000-11-21
JPH11504258A (ja) 1999-04-20
IN187764B (es) 2002-06-22
BR9608193A (pt) 1998-07-21
ZA963065B (en) 1996-11-01
KR19990008062A (ko) 1999-01-25
CN1182376A (zh) 1998-05-20
US6080377A (en) 2000-06-27

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