CH681429A5 - - Google Patents
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- Publication number
- CH681429A5 CH681429A5 CH2944/91A CH294491A CH681429A5 CH 681429 A5 CH681429 A5 CH 681429A5 CH 2944/91 A CH2944/91 A CH 2944/91A CH 294491 A CH294491 A CH 294491A CH 681429 A5 CH681429 A5 CH 681429A5
- Authority
- CH
- Switzerland
- Prior art keywords
- catalyst
- exhaust gas
- arrangement according
- temperature range
- catalyst bed
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 claims description 55
- 239000007789 gas Substances 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 19
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- 230000003197 catalytic effect Effects 0.000 claims description 7
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000004071 soot Substances 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 2
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9431—Processes characterised by a specific device
-
- 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
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- 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
- B01D2255/20707—Titanium
-
- 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
- B01D2255/20723—Vanadium
-
- 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
- B01D2255/20784—Chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
-
- 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)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4032085A DE4032085A1 (de) | 1990-10-10 | 1990-10-10 | Katalysatoranordnung zur reduktion von stickoxiden |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH681429A5 true CH681429A5 (sv) | 1993-03-31 |
Family
ID=6415974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH2944/91A CH681429A5 (sv) | 1990-10-10 | 1991-10-04 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE1006164A3 (sv) |
| CH (1) | CH681429A5 (sv) |
| DE (1) | DE4032085A1 (sv) |
| DK (1) | DK171491A (sv) |
| ES (1) | ES2036473B1 (sv) |
| IT (1) | IT1249451B (sv) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0555746B1 (de) * | 1992-02-10 | 1997-09-10 | MAN Nutzfahrzeuge Aktiengesellschaft | Vorrichtung zur katalytischen NOX-Reduktion |
| CA2088713C (en) * | 1992-02-24 | 1999-11-16 | Hans Thomas Hug | Cleaning exhaust gases from combustion installations |
| DE4214183A1 (de) * | 1992-04-30 | 1993-06-09 | Daimler Benz Ag | Abgasnachbehandlungseinrichtung fuer verbrennungsmotoren, mit einem reduktionskatalysator zur selektiven katalytischen reduktion von stickoxiden aus abgasen, insbesondere aus abgasen von kraftfahrzeugdieselmotoren |
| EP0611594A1 (de) * | 1993-02-17 | 1994-08-24 | Siemens Aktiengesellschaft | Katalysator zur Umsetzung von Reaktanten eines Gasgemisches |
| DE59400100D1 (de) * | 1993-03-26 | 1996-03-14 | Siemens Ag | Katalysator zur Stickoxidminderung im Abgas eines Verbrennungsmotors |
| DE69425972T2 (de) * | 1993-07-12 | 2001-05-23 | Clean Diesel Technologies Inc., Stamford | Methode zum herabsetzen von nox-emissionen und von teilchen aus einem dieselmotor |
| DE19617563C2 (de) * | 1996-05-02 | 2000-06-15 | Daimler Chrysler Ag | Abgaskatalysatoranlage für einen Dieselmotor |
| GB9802504D0 (en) * | 1998-02-06 | 1998-04-01 | Johnson Matthey Plc | Improvements in emission control |
| US8833062B1 (en) | 2013-03-15 | 2014-09-16 | Daimier Ag | Catalytic reduction of NOx |
| JP3482874B2 (ja) * | 1998-05-28 | 2004-01-06 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
| JP3733834B2 (ja) * | 2000-05-02 | 2006-01-11 | 日産自動車株式会社 | 内燃機関の排気浄化装置 |
| DE10128414A1 (de) | 2001-06-12 | 2002-12-19 | Daimler Chrysler Ag | Abgasreinigungsanlage mit Reduktionsmittelversorgung |
| DE10207986A1 (de) | 2002-02-25 | 2003-09-04 | Daimler Chrysler Ag | Abgasreinigungsanlage für eine Brennkraftmaschine |
| US6846464B2 (en) * | 2002-11-20 | 2005-01-25 | Ford Global Technologies, Llc | Bimodal catalyst-urea SCR system for enhanced NOx conversion and durability |
| US7481983B2 (en) | 2004-08-23 | 2009-01-27 | Basf Catalysts Llc | Zone coated catalyst to simultaneously reduce NOx and unreacted ammonia |
| FR2877693B1 (fr) * | 2004-11-08 | 2007-04-13 | Peugeot Citroen Automobiles Sa | SYSTEME DE TRAITEMENT DES NOx DE GAZ D'ECHAPPEMENT D'UN MOTEUR THERMIQUE DE VEHICULE AUTOMOBILE |
| US8850802B1 (en) | 2013-03-15 | 2014-10-07 | Daimler Ag | Catalytic reduction of NOx |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5332788B2 (sv) * | 1973-10-12 | 1978-09-09 | ||
| GB1560184A (en) * | 1977-05-31 | 1980-01-30 | Caterpillar Tractor Co | Dual catalyst nitric oxide reduction |
| DE3332663C2 (de) * | 1983-09-10 | 1987-02-19 | L. & C. Steinmüller GmbH, 5270 Gummersbach | Verfahren zur Optimierung der Reduktion von NO↓x↓ in Rauchgasen aus mit fossilen Brennstoffen befeuerten Feuerungseinrichtungen |
| DE8424417U1 (de) * | 1984-08-17 | 1986-07-10 | Lentjes BWE Energietechnik GmbH, 4000 Düsseldorf | Vorrichtung zur selektiven katalytischen Reduktion von Stickoxyden |
| DE3505648C2 (de) * | 1985-02-19 | 1987-02-19 | Didier Engineering Gmbh, 4300 Essen | Verfahren zur Herstellung eines Eisenoxid, Chromoxid und Manganoxid enthaltenden Katalysators zur selektiven Reduzierung von Stickoxiden in Abgasen mittels Ammoniak |
| DE3544320A1 (de) * | 1985-12-14 | 1987-08-27 | Rennebeck Klaus | Kaskaden-sequenzkatalysation mit katalysator-serienschaltung in abhaengigkeit zur reaktionstemperatur |
| DE3637395A1 (de) * | 1986-11-03 | 1988-05-05 | Thyssen Industrie | Vorrichtung zur entstickung von rauchgasen |
| DE3733501A1 (de) * | 1987-10-03 | 1989-04-13 | Ruhrgas Ag | Verfahren zur verminderung von emissionen beim betrieb von stationaeren verbrennungsmotoren |
| FR2622126B1 (fr) * | 1987-10-21 | 1991-06-14 | Procatalyse Ste Fse Produits C | Catalyseur pour le traitement des gaz d'echappement des moteurs a combustion interne et procede de fabrication de ce catalyseur |
-
1990
- 1990-10-10 DE DE4032085A patent/DE4032085A1/de not_active Withdrawn
-
1991
- 1991-10-04 CH CH2944/91A patent/CH681429A5/de not_active IP Right Cessation
- 1991-10-07 IT ITRM910751A patent/IT1249451B/it active IP Right Grant
- 1991-10-08 ES ES9102221A patent/ES2036473B1/es not_active Expired - Lifetime
- 1991-10-09 DK DK171491A patent/DK171491A/da not_active IP Right Cessation
- 1991-10-09 BE BE9100923A patent/BE1006164A3/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE4032085A1 (de) | 1992-04-16 |
| ES2036473B1 (es) | 1994-03-01 |
| ES2036473A1 (es) | 1993-05-16 |
| DK171491A (da) | 1992-04-11 |
| BE1006164A3 (fr) | 1994-05-31 |
| ITRM910751A1 (it) | 1993-04-07 |
| IT1249451B (it) | 1995-02-23 |
| ITRM910751A0 (it) | 1991-10-07 |
| DK171491D0 (da) | 1991-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |