US20020033015A1 - Process for denitrification of exhaust gasses, particularly for lean operated internal combustion engines - Google Patents

Process for denitrification of exhaust gasses, particularly for lean operated internal combustion engines Download PDF

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Publication number
US20020033015A1
US20020033015A1 US09/912,004 US91200401A US2002033015A1 US 20020033015 A1 US20020033015 A1 US 20020033015A1 US 91200401 A US91200401 A US 91200401A US 2002033015 A1 US2002033015 A1 US 2002033015A1
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US
United States
Prior art keywords
porous carrier
process according
lean
internal combustion
nitrogen oxide
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.)
Abandoned
Application number
US09/912,004
Other languages
English (en)
Inventor
Guido Schaffner
Renato Andorf
Carsten Plog
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.)
Daimler AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Assigned to DAIMLERCHRYSLER AG reassignment DAIMLERCHRYSLER AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ANDORF, RENATO, PLOG, CARSTEN, SCHAFFNER, GUIDO
Publication of US20020033015A1 publication Critical patent/US20020033015A1/en
Abandoned legal-status Critical Current

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    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
    • 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
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • 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
    • 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
    • B01D2255/20715—Zirconium
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group 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
    • 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

Definitions

  • Both noble metals are provided as atomic mixtures upon the same porous carrier substance, which for its part is applied upon a geometric carrier.
  • the NOx input concentration in this experiment corresponded to 280 ppm.
  • the NOx concentration is shown in ppm, and on the right ordinate the ⁇ -signal is shown.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (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)
  • Exhaust Gas After Treatment (AREA)
US09/912,004 2000-07-28 2001-07-24 Process for denitrification of exhaust gasses, particularly for lean operated internal combustion engines Abandoned US20020033015A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10036886A DE10036886B4 (de) 2000-07-28 2000-07-28 Verfahren zur Entstickung von Abgasen vorwiegend mager betriebener Verbrennungsmotoren
DE10036886.7-43 2000-07-28

Publications (1)

Publication Number Publication Date
US20020033015A1 true US20020033015A1 (en) 2002-03-21

Family

ID=7650583

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/912,004 Abandoned US20020033015A1 (en) 2000-07-28 2001-07-24 Process for denitrification of exhaust gasses, particularly for lean operated internal combustion engines

Country Status (3)

Country Link
US (1) US20020033015A1 (fr)
EP (1) EP1181971A3 (fr)
DE (1) DE10036886B4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004022225A2 (fr) * 2002-09-09 2004-03-18 Millennium Chemicals Thann Sas Procede de conversion d'oxydes d'azote (nox) contenus dans des gaz d'echappement et catalyseur utilise a cet effet
US20080034740A1 (en) * 2004-04-16 2008-02-14 Wolfgang Strehlau Process for the Removal of Harmful Substances From Exhaust Gases of Combustion Engines and Catalyst for Carrying Out Said Process
US20090255238A1 (en) * 2005-11-10 2009-10-15 Toyota Jidosha Kabushiki Kaisha Exhaust Gas Purifying Apparatus and Exhaust Gas Purifying Method
CN113648831A (zh) * 2021-09-07 2021-11-16 安徽江淮汽车集团股份有限公司 一种nsc的脱氮方法及脱氮装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10340653B4 (de) * 2003-09-03 2006-04-27 Hte Ag The High Throughput Experimentation Company Katalysator für die Entfernung von Schadstoffen aus Abgasen von Mager-Motoren mit Ruthenium als Aktiv-Metall
CN104474857B (zh) * 2014-11-20 2016-07-06 浙江大学 活性分子前置氧化吸收燃煤烟气中NOx和SO2的方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3498453B2 (ja) * 1995-11-27 2004-02-16 日産自動車株式会社 排気ガス浄化用触媒及びその製造方法
JPH09201531A (ja) * 1996-01-29 1997-08-05 Toyota Central Res & Dev Lab Inc 排ガス浄化用触媒及び排ガス浄化方法
EP0890389A1 (fr) * 1997-07-10 1999-01-13 DORNIER GmbH Matériau solide pour l'adsorption et l'élimination catalytique des oxydes d'azote
US6182443B1 (en) * 1999-02-09 2001-02-06 Ford Global Technologies, Inc. Method for converting exhaust gases from a diesel engine using nitrogen oxide absorbent

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004022225A2 (fr) * 2002-09-09 2004-03-18 Millennium Chemicals Thann Sas Procede de conversion d'oxydes d'azote (nox) contenus dans des gaz d'echappement et catalyseur utilise a cet effet
WO2004022225A3 (fr) * 2002-09-09 2005-03-24 Millennium Chemicals Thann Sas Procede de conversion d'oxydes d'azote (nox) contenus dans des gaz d'echappement et catalyseur utilise a cet effet
US20080034740A1 (en) * 2004-04-16 2008-02-14 Wolfgang Strehlau Process for the Removal of Harmful Substances From Exhaust Gases of Combustion Engines and Catalyst for Carrying Out Said Process
US8087235B2 (en) 2004-04-16 2012-01-03 Hte Aktiengesellschaft The High Throughput Experimentation Company Process for the removal of harmful substances from exhaust gases of combustion engines and catalyst for carrying out said process
US20090255238A1 (en) * 2005-11-10 2009-10-15 Toyota Jidosha Kabushiki Kaisha Exhaust Gas Purifying Apparatus and Exhaust Gas Purifying Method
CN113648831A (zh) * 2021-09-07 2021-11-16 安徽江淮汽车集团股份有限公司 一种nsc的脱氮方法及脱氮装置

Also Published As

Publication number Publication date
DE10036886B4 (de) 2006-01-05
EP1181971A3 (fr) 2002-03-27
DE10036886A1 (de) 2002-02-21
EP1181971A2 (fr) 2002-02-27

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AS Assignment

Owner name: DAIMLERCHRYSLER AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHAFFNER, GUIDO;ANDORF, RENATO;PLOG, CARSTEN;REEL/FRAME:012169/0281

Effective date: 20010627

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION