RU2018146947A - Ванадиевые катализаторы для систем двигателей с высокими уровнями выбросов no2 - Google Patents
Ванадиевые катализаторы для систем двигателей с высокими уровнями выбросов no2 Download PDFInfo
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- RU2018146947A RU2018146947A RU2018146947A RU2018146947A RU2018146947A RU 2018146947 A RU2018146947 A RU 2018146947A RU 2018146947 A RU2018146947 A RU 2018146947A RU 2018146947 A RU2018146947 A RU 2018146947A RU 2018146947 A RU2018146947 A RU 2018146947A
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- exhaust gas
- catalyst
- ammonia
- nitrogen oxides
- temperature range
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims 38
- 229910052720 vanadium Inorganic materials 0.000 title claims 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims 42
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 40
- 239000007789 gas Substances 0.000 claims 28
- 229910021529 ammonia Inorganic materials 0.000 claims 20
- 238000010531 catalytic reduction reaction Methods 0.000 claims 10
- 230000003647 oxidation Effects 0.000 claims 10
- 238000007254 oxidation reaction Methods 0.000 claims 10
- 239000003344 environmental pollutant Substances 0.000 claims 8
- 231100000719 pollutant Toxicity 0.000 claims 8
- 150000001875 compounds Chemical class 0.000 claims 6
- 230000003197 catalytic effect Effects 0.000 claims 5
- 238000000034 method Methods 0.000 claims 5
- 238000006243 chemical reaction Methods 0.000 claims 4
- 238000002485 combustion reaction Methods 0.000 claims 4
- 238000000746 purification Methods 0.000 claims 4
- 239000003638 chemical reducing agent Substances 0.000 claims 2
- 239000000356 contaminant Substances 0.000 claims 2
- 239000000446 fuel Substances 0.000 claims 1
- 230000007062 hydrolysis Effects 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
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- 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
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- 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
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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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
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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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
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- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/103—Oxidation catalysts for HC and CO only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
- F01N3/106—Auxiliary oxidation catalysts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
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- 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
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- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/91—NOx-storage component incorporated in the catalyst
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- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/915—Catalyst supported on particulate filters
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- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/40—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a hydrolysis catalyst
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- F01N2370/00—Selection of materials for exhaust purification
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- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
- F01N2570/145—Dinitrogen oxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- 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)
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- 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
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Claims (40)
1. Система очистки выхлопного газа для снижения содержания загрязняющих примесей в обедненном выхлопном газе двигателя внутреннего сгорания, включающая, в комбинации и в следующем порядке:
а. подающее устройство, выполненное с возможностью подачи аммиака или разлагаемого с образованием аммиака соединения в поток выхлопного газа, содержащего оксиды азота;
b. катализатор селективного каталитического восстановления, содержащий ванадий (V-SCR-катализатор), выполненный с возможностью катализирования реакции оксидов азота с аммиаком в диапазоне температур от около 150°С до около 400°С, и при соотношении NO2/NOx от около 0,3 до около 0,9; и
с. систему ниже по потоку, включающую дизельный катализатор окисления.
2. Система по п. 1, в которой V-SCR-катализатор связан с катализатором гидролиза, размещенным выше по потоку относительно V-SCR-катализатора.
3. Система по п. 1, в которой система ниже по потоку эффективна в удалении загрязнителей из выхлопного газа в диапазоне температур от около 150°С до около 400°С.
4. Система по п. 1, в которой дизельный катализатор окисления окисляет загрязнители из выхлопного газа в диапазоне температур от около 150°С до около 400°С.
5. Система по п. 1, в которой система ниже по потоку включает каталитический сажевый фильтр.
6. Система по п. 1, в которой система ниже по потоку включает, в этом порядке, катализатор для предотвращения проскока аммиака, дизельный катализатор окисления, каталитический сажевый фильтр и катализатор селективного каталитического восстановления.
7. Система по п. 1, в которой система ниже по потоку включает, в этом порядке, катализатор для предотвращения проскока аммиака, дизельный катализатор окисления, SCRF, и катализатор селективного каталитического восстановления.
8. Система очистки выхлопного газа для снижения содержания загрязняющих примесей в обедненном выхлопном газе двигателя внутреннего сгорания, при выхлопном газе, имеющем соотношении NO2/NOx от около 0,3 до около 0,9, включающая:
а. подающее устройство, выполненное с возможностью подачи аммиака или разлагаемого с образованием аммиака соединения в поток выхлопного газа, содержащего оксиды азота;
b. катализатор селективного каталитического восстановления, включающий ванадий (V-SCR-катализатор);
с. турбокомпрессор ниже по потоку относительно подающего устройства и/или относительно V-SCR-катализатора;
d. форсунку для вторичного топлива; и
е. систему ниже по потоку, включающую дизельный катализатор окисления.
9. Система по п. 8, в которой система ниже по потоку включает каталитический сажевый фильтр.
10. Система по п. 8, в которой система ниже по потоку включает, в этом порядке, катализатор для предотвращения проскока аммиака, дизельный катализатор окисления, каталитический сажевый фильтр и катализатор селективного каталитического восстановления.
11. Система по п. 8, в которой система ниже по потоку включает, в этом порядке, катализатор для предотвращения проскока аммиака, дизельный катализатор окисления, SCRF, и катализатор селективного каталитического восстановления.
12. Система по п. 8, в которой система ниже по потоку является эффективной для удаления загрязнителей из выхлопного газа в диапазоне температур от около 150°С до около 400°С.
13. Система по п. 8, в которой дизельный катализатор окисления окисляет загрязнители из выхлопного газа в диапазоне температур от около 150°С до около 400°С.
14. Система очистки выхлопного газа для снижения содержания загрязняющих примесей в обедненном выхлопном газе двигателя внутреннего сгорания, включающая, в комбинации и в порядке:
а. устройство для подачи первого восстановителя, выполненное с возможностью подачи аммиака или разлагаемого с образованием аммиака соединения в поток выхлопного газа, содержащего оксиды азота;
b. катализатор селективного каталитического восстановления, включающий ванадий (V-SCR-катализатор), выполненный с возможностью катализирования реакции оксидов азота с аммиаком в диапазоне температур от около 150°С до около 400°С и при соотношении NO2/NOx от около 0,3 до около 0,9; и
с. катализатор для холодного пуска.
15. Система очистки выхлопного газа для снижения содержания загрязняющих примесей в обедненном выхлопном газе двигателя внутреннего сгорания, при выхлопном газе, имеющем соотношении NO2/NOx от около 0,3 до около 0,9, включающая:
а. устройство для подачи первого восстановителя, выполненное с возможностью подачи аммиака или разлагаемого с образованием аммиака соединения в поток выхлопного газа, содержащего оксиды азота;
b. катализатор селективного каталитического восстановления, включающий ванадий (V-SCR-катализатор); и
с. катализатор для холодного пуска.
16. Способ обработки выхлопных газов дизельного двигателя в выхлопной системе, содержащих оксиды азота, включающий:
а. добавление аммиака или разлагаемого с образованием аммиака соединения в поток выхлопного газа, содержащего оксиды азота;
b. пропускание содержащего оксиды азота потока выхлопного газа, с соотношением NO2/NOx от около 0,3 до около 0,9, над катализатором селективного каталитического восстановления, включающим ванадий (V-SCR-катализатор), выполненный с возможностью катализирования реакции оксидов азота с аммиаком в диапазоне температур от около 150°С до около 400°С; и
с. пропускание выхлопного газа через систему ниже по потоку, включающую дизельный катализатор окисления.
17. Способ по п. 16, в котором система ниже по потоку удаляет загрязнители из выхлопного газа в диапазоне температур от около 150°С до около 400°С.
18. Способ по п. 16, в котором дизельный катализатор окисления окисляет загрязнители из выхлопного газа в диапазоне температур от около 150°С до около 400°С.
19. Способ по п. 16, в котором система ниже по потоку включает каталитический сажевый фильтр.
20. Способ обработки выхлопных газов дизельного двигателя в выхлопной системе, содержащих оксиды азота, включающий:
а. добавление аммиака или разлагаемого с образованием аммиака соединения в поток выхлопного газа, содержащего оксиды азота;
b. пропускание содержащего оксиды азота потока выхлопного газа, с соотношением NO2/NOx от около 0,3 до около 0,9, над катализатором селективного каталитического восстановления, включающим ванадий (V-SCR-катализатор), выполненный с возможностью катализирования реакции оксидов азота с аммиаком в диапазоне температур от около 150°С до около 400°С; и
с. пропускание потока выхлопного газа над катализатором для холодного пуска.
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PCT/US2017/034971 WO2017210173A1 (en) | 2016-05-31 | 2017-05-30 | Vanadium catalysts for high engine-out no2 systems |
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GB2555695A (en) * | 2016-08-25 | 2018-05-09 | Johnson Matthey Plc | Reduced sulfation impact on CU-SCRS |
DE102018107548A1 (de) * | 2017-03-30 | 2018-10-04 | Johnson Matthey Public Limited Company | Eng gekoppeltes system von scr mit turbo und asc/doc |
BR112020016802A2 (pt) | 2018-02-19 | 2020-12-15 | Basf Corporation | Sistema para tratamento de uma corrente de gás de escape de um motor e método para tratar uma corrente de gás de escape |
JP2019157739A (ja) * | 2018-03-12 | 2019-09-19 | いすゞ自動車株式会社 | 内燃機関の排気浄化装置 |
JP2019157737A (ja) * | 2018-03-12 | 2019-09-19 | いすゞ自動車株式会社 | 内燃機関の排気浄化装置 |
EP3775510B8 (en) * | 2018-03-29 | 2024-07-17 | Johnson Matthey Public Limited Company | Exhaust system including scrf catalyst with oxidation zone |
US11378278B2 (en) * | 2019-12-11 | 2022-07-05 | Umicore Ag & Co. Kg | System and process for efficient SCR at high NO2 to NOx ratios |
WO2021126935A1 (en) | 2019-12-19 | 2021-06-24 | Basf Corporation | Exhaust treatment system for ammonia-fueled vehicles |
JP2024505922A (ja) | 2021-02-02 | 2024-02-08 | ビーエーエスエフ コーポレーション | 移動式のガソリン用途のためのnh3低減触媒 |
CN117015437A (zh) * | 2021-03-10 | 2023-11-07 | 巴斯夫公司 | 包含钒基催化剂和分子筛基催化剂的催化制品 |
WO2023244279A1 (en) | 2022-06-17 | 2023-12-21 | Basf Corporation | Exhaust treatment system for ammonia-fueled vehicles |
WO2024133298A1 (en) | 2022-12-21 | 2024-06-27 | Basf Corporation | Ammonia oxidation catalyst with zoned scr inlet and pgm outlet for gasoline applications |
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EP2112341B1 (en) * | 2008-04-22 | 2018-07-11 | Umicore AG & Co. KG | Method for purification of an exhaust gas from a diesel engine |
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EP2230001A1 (en) * | 2009-03-18 | 2010-09-22 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | Exhaust gas treatment |
KR101860741B1 (ko) * | 2010-09-15 | 2018-05-24 | 존슨 맛쎄이 퍼블릭 리미티드 컴파니 | 조합된 슬립 촉매와 탄화수소 발열 촉매 |
WO2013095214A1 (en) * | 2011-12-23 | 2013-06-27 | Volvo Lastvagnar Ab | Exhaust aftertreatment system and method for operating the system |
US9051862B2 (en) * | 2013-09-06 | 2015-06-09 | Cummins Ip, Inc. | Diagnosis and treatment of selective catalytic reduction catalyst |
CN105792914A (zh) | 2013-12-06 | 2016-07-20 | 庄信万丰股份有限公司 | 冷启动催化剂和其在排气系统中的用途 |
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GB2552072A (en) | 2018-01-10 |
DE102017111879A1 (de) | 2017-11-30 |
US20170341026A1 (en) | 2017-11-30 |
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