RU95113196A - SORPTION CATALYST FOR COMBINED SORPTION-OXIDATION CLEANING OF EXHAUST GASES OF DIESEL ENGINES - Google Patents

SORPTION CATALYST FOR COMBINED SORPTION-OXIDATION CLEANING OF EXHAUST GASES OF DIESEL ENGINES

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Publication number
RU95113196A
RU95113196A RU95113196/25A RU95113196A RU95113196A RU 95113196 A RU95113196 A RU 95113196A RU 95113196/25 A RU95113196/25 A RU 95113196/25A RU 95113196 A RU95113196 A RU 95113196A RU 95113196 A RU95113196 A RU 95113196A
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RU
Russia
Prior art keywords
sorption
catalyst
active mass
catalyst according
platinum
Prior art date
Application number
RU95113196/25A
Other languages
Russian (ru)
Other versions
RU2144420C1 (en
Inventor
Якоб Эберхард
Харрис Михаель
Original Assignee
Ман Нуцфарцойге АГ
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
Priority claimed from DE4424235A external-priority patent/DE4424235A1/en
Application filed by Ман Нуцфарцойге АГ filed Critical Ман Нуцфарцойге АГ
Publication of RU95113196A publication Critical patent/RU95113196A/en
Application granted granted Critical
Publication of RU2144420C1 publication Critical patent/RU2144420C1/en

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Claims (8)

1. Сорбционный катализатор для комбинированной сорбционно-окислительной очистки выхлопных газов дизельных двигателей (СОК) с блокирующей активностью (сорбционной и окислительной активностью) относительно легколетучих органических компонентов выхлопных газов, оставляющих частицы средне- и тяжелолетучих органических компонентов выхлопных газов, а также при необходимости относительно аммиака с окислительной активностью относительно СО при ограниченной окислительной активности относительно двуокиси серы и окиси азота, причем активная масса катализатора состоит из твердотельных кислот с большой поверхностью в системе
V2O5/WO3/TiO2/SiO2/Al2O3/SO 2- 4 /PO 3- 4 ,
отличающийся тем, что активная масса дополнительно содержит металлы платиновой группы в виде их окислов, в частности платины и палладия, с целью повышения ингибирующей активности катализатора.1. Sorption catalyst for the combined sorption-oxidative purification of diesel engine exhaust gases (SOC) with blocking activity (sorption and oxidative activity) with respect to the volatile organic components of the exhaust gas, leaving particles of medium and low-volatile organic components of the exhaust gas, and also, if necessary, relative to ammonia with oxidative activity with respect to CO with limited oxidative activity with respect to sulfur dioxide and nitric oxide, I catalyst mass consists of solid acids with a large surface area in the system
V 2 O 5 / WO 3 / TiO 2 / SiO 2 / Al 2 O 3 / SO 2- 4 / PO 3- 4 ,
characterized in that the active mass additionally contains platinum group metals in the form of their oxides, in particular platinum and palladium, in order to increase the inhibitory activity of the catalyst. 2. Сорбционный катализатор по п. 1, отличающийся тем, что активная масса состоит из твердотельных кислот с большой поверхностью для изготовления сотового корпуса катализатора с весом от 300 до 1400 г, предпочтительно от 400 до 800 г, на каждый литр сотового корпуса. 2. The sorption catalyst according to claim 1, characterized in that the active mass consists of solid-state acids with a large surface for the manufacture of a honeycomb casing of the catalyst with a weight of from 300 to 1400 g, preferably from 400 to 800 g, per liter of honeycomb casing. 3. Сорбционный катализатор по пп. 1 и 2, отличающийся тем, что активная масса из твердотельных кислот с большой поверхностью нанесена на несущую структуру в количестве от 200 до 800 г, предпочтительно от 300 до 600 г, на каждый литр сотового корпуса. 3. Sorption catalyst according to claims. 1 and 2, characterized in that the active mass of solid acids with a large surface is applied to the supporting structure in an amount of from 200 to 800 g, preferably from 300 to 600 g, per liter of honeycomb body. 4. Сорбционный катализатор по пп. 1-3, отличающийся тем, что весовая доля платиновых металлов в активной массе составляет 0,001-0,1% и платиновые металлы тем самым используются в весьма сильноразбавленном виде. 4. Sorption catalyst according to claims. 1-3, characterized in that the weight fraction of platinum metals in the active mass is 0.001-0.1% and platinum metals are thereby used in a very highly diluted form. 5. Сорбционный катализатор по пп. 1-4, отличающийся тем, что трехокись вольфрама в активной массе катализатора полностью или частично заменена трехокисью молибдена. 5. Sorption catalyst according to claims. 1-4, characterized in that the tungsten trioxide in the active mass of the catalyst is completely or partially replaced by molybdenum trioxide. 6. Сорбционный катализатор по пп. 1-5, отличающийся тем, что корпус катализатора дополнительно покрыт слоем активной массы, пористая структура и химический состав которой отличается от таковых основного корпуса катализатора. 6. Sorption catalyst according to claims. 1-5, characterized in that the catalyst housing is additionally coated with a layer of active mass, the porous structure and chemical composition of which differs from those of the main catalyst housing. 7. Сорбционный катализатор по п. 6, отличающийся тем, что объем пор активной массы покрывного слоя составляет более 35%. 7. Sorption catalyst according to claim 6, characterized in that the pore volume of the active mass of the coating layer is more than 35%. 8. Сорбционный катализатор по пп. 6 и 7, отличающийся тем, что активная масса, используемая для покрывного слоя, не содержит платину. 8. Sorption catalyst according to claims. 6 and 7, characterized in that the active mass used for the coating layer does not contain platinum.
RU95113196A 1994-07-09 1995-07-07 Sorption catalysts for combined sorption-oxidation cleaning of diesel engine exhaust gases RU2144420C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4424235A DE4424235A1 (en) 1994-07-09 1994-07-09 Sorption catalyst for the sorptive and oxidative purification of exhaust gases from diesel engines
DEP4424235.2 1994-07-09

Publications (2)

Publication Number Publication Date
RU95113196A true RU95113196A (en) 1997-08-20
RU2144420C1 RU2144420C1 (en) 2000-01-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU95113196A RU2144420C1 (en) 1994-07-09 1995-07-07 Sorption catalysts for combined sorption-oxidation cleaning of diesel engine exhaust gases

Country Status (6)

Country Link
US (1) US5591414A (en)
EP (1) EP0692301B1 (en)
JP (1) JPH0852362A (en)
AT (1) ATE171645T1 (en)
DE (2) DE4424235A1 (en)
RU (1) RU2144420C1 (en)

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EP1287886A1 (en) * 2001-08-09 2003-03-05 OMG AG & Co. KG Catalyst for cleaning of exhaust gases of a combustion engine
JP4427356B2 (en) * 2004-02-27 2010-03-03 東京濾器株式会社 Nitrogen oxide purification catalyst system and nitrogen oxide purification method
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EP1832332B1 (en) * 2006-03-09 2016-05-04 Haldor Topsøe A/S Process and system for purification of sulphur-containing exhaust gas
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