RU2013126638A - Способ обработки nox выхлопных газов с использованием трех последовательных зон катализаторов scr - Google Patents

Способ обработки nox выхлопных газов с использованием трех последовательных зон катализаторов scr Download PDF

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RU2013126638A
RU2013126638A RU2013126638/05A RU2013126638A RU2013126638A RU 2013126638 A RU2013126638 A RU 2013126638A RU 2013126638/05 A RU2013126638/05 A RU 2013126638/05A RU 2013126638 A RU2013126638 A RU 2013126638A RU 2013126638 A RU2013126638 A RU 2013126638A
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gaseous product
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Тосиф АСЛАМ
Валери Мари Рене УЭЛЬ
Радж Рао РАДЖАРАМ
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Джонсон Мэтти Паблик Лимитед Компани
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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Abstract

1. Способ улучшения восстановления NOx в выхлопах дизельного двигателя посредством селективного каталитического восстановления с использованием восстановительных агентов, содержащих углеводороды, включающий пропускание выхлопных газов через ряд зон, включающих первую зону, в которой расположен первый катализатор, ускоряющий SCR НС, с получением первого газообразного продукта; вторую зону, через которую пропускают первый газообразный продукт и в которой расположен второй катализатор, ускоряющий Н-ускоряемую реакцию SCR НС с получением второго газообразного продукта, и третью зону, через которую пропускают второй газообразный продукт и в которой расположен третий катализатор, который ускоряет SCR СО/Нс получением конечных, NOx-обедненных, выхлопных газов, и смешивание газообразного риформата, содержащего СО и Н, с одним или более из выхлопных газов, первого газообразного продукта и второго газообразного продукта.2. Способ по п. 1, при котором первый катализатор представляет собой катализатор металл/цеолит.3. Способ по п. 2, при котором первый катализатор представляет собой катализатор Cu/ZSM5.4. Способ по любому из предыдущих пунктов, при котором второй катализатор представляет собой катализатор Ag/AlO.5. Способ по п. 4, при котором третий катализатор представляет собой катализатор на основе благородного металла.6. Способ по п. 5, при котором третий катализаторпредставляет собой катализатор на основе Pd.7. Способ по п. 1, при котором газообразный риформат смешивают с первым газообразным продуктом в количестве, необходимом для достижения оптимизированного отношения Н:НС для Н-ускоряемой SCR, перед поступлением во вторую зону.8.

Claims (10)

1. Способ улучшения восстановления NOx в выхлопах дизельного двигателя посредством селективного каталитического восстановления с использованием восстановительных агентов, содержащих углеводороды, включающий пропускание выхлопных газов через ряд зон, включающих первую зону, в которой расположен первый катализатор, ускоряющий SCR НС, с получением первого газообразного продукта; вторую зону, через которую пропускают первый газообразный продукт и в которой расположен второй катализатор, ускоряющий Н2-ускоряемую реакцию SCR НС с получением второго газообразного продукта, и третью зону, через которую пропускают второй газообразный продукт и в которой расположен третий катализатор, который ускоряет SCR СО/Н2 с получением конечных, NOx-обедненных, выхлопных газов, и смешивание газообразного риформата, содержащего СО и Н2, с одним или более из выхлопных газов, первого газообразного продукта и второго газообразного продукта.
2. Способ по п. 1, при котором первый катализатор представляет собой катализатор металл/цеолит.
3. Способ по п. 2, при котором первый катализатор представляет собой катализатор Cu/ZSM5.
4. Способ по любому из предыдущих пунктов, при котором второй катализатор представляет собой катализатор Ag/Al2O3.
5. Способ по п. 4, при котором третий катализатор представляет собой катализатор на основе благородного металла.
6. Способ по п. 5, при котором третий катализатор
представляет собой катализатор на основе Pd.
7. Способ по п. 1, при котором газообразный риформат смешивают с первым газообразным продуктом в количестве, необходимом для достижения оптимизированного отношения Н2:НС для Н2-ускоряемой SCR, перед поступлением во вторую зону.
8. Способ по п. 1, также включающий смешивание газообразного риформата со вторым газообразным продуктом перед поступлением в третью зону.
9. Система катализаторов, содержащая ряд катализаторов SCR, включающий первый катализатор, который ускоряет SCR НС, второй катализатор, который ускоряет Н2-ускоряемую реакцию SCR НС, и третий катализатор, который ускоряет SCR СО/Н2.
10. Система по п. 9, содержащая ряд катализаторов, осажденных в виде зонированных осаждений на проточном носителе для катализатора.
RU2013126638/05A 2010-11-11 2011-11-11 СПОСОБ ОБРАБОТКИ NOx ВЫХЛОПНЫХ ГАЗОВ С ИСПОЛЬЗОВАНИЕМ ТРЕХ ПОСЛЕДОВАТЕЛЬНЫХ ЗОН КАТАЛИЗАТОРОВ SCR RU2592791C2 (ru)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1019045.2 2010-11-11
GB1019045.2A GB2485530A (en) 2010-11-11 2010-11-11 Catalyst system
US13/112,571 US8661784B2 (en) 2010-11-11 2011-05-20 Exhaust gas aftertreatment
US13/112,571 2011-05-20
PCT/GB2011/052204 WO2012063080A1 (en) 2010-11-11 2011-11-11 Exhaust gas nox treatment using three scr catalyst zones in series

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EP (1) EP2637769B1 (ru)
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KR (1) KR101866930B1 (ru)
CN (1) CN103391806B (ru)
BR (1) BR112013011720A2 (ru)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2704422C2 (ru) * 2015-03-30 2019-10-28 Басф Корпорейшн Многофункциональные фильтры для регулирования выбросов дизельного двигателя

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2519403A (en) * 2013-07-30 2015-04-22 Johnson Matthey Plc Ammonia slip catalyst
US10626772B2 (en) 2014-07-18 2020-04-21 Cummins Inc. SCR exhaust aftertreatment apparatus, system and methods including multiple washcoat formulations
GB201517580D0 (en) 2015-10-06 2015-11-18 Johnson Matthey Plc Exhaust system comprising a passive nox adsorber
DE102015225579A1 (de) * 2015-12-17 2017-06-22 Umicore Ag & Co. Kg Verfahren zur Verhinderung der Kontamination eines SCR-Katalysators mit Platin
CN105771633A (zh) * 2016-03-31 2016-07-20 大唐环境产业集团股份有限公司 一种脱硝反应器装置
GB2593763B (en) * 2020-04-02 2022-08-24 Jaguar Land Rover Ltd Improvements in hydrocarbon selective catalytic reduction
KR102431102B1 (ko) * 2021-02-03 2022-08-11 전남대학교산학협력단 환원제 슬립을 방지할 수 있는 질소산화물 저감용 선택적 환원촉매장치 및 이를 이용한 질소산화물 제거 방법

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5524432A (en) * 1991-08-01 1996-06-11 Air Products And Chemicals, Inc. Catalytic reduction of nitrogen oxides in methane-fueled engine exhaust by controlled methane injections
US5921076A (en) 1996-01-09 1999-07-13 Daimler-Benz Ag Process and apparatus for reducing nitrogen oxides in engine emissions
JP3781401B2 (ja) * 1999-01-26 2006-05-31 日野自動車株式会社 排ガス浄化触媒用還元剤
DE10054877A1 (de) * 2000-11-06 2002-05-29 Omg Ag & Co Kg Abgasreinigungsanlage für die selektive katalytische Reduktion von Stickoxiden unter mageren Abgasbedingungen und Verfahren zur Abgasreinigung
US7213395B2 (en) * 2004-07-14 2007-05-08 Eaton Corporation Hybrid catalyst system for exhaust emissions reduction
US20060112678A1 (en) 2004-11-04 2006-06-01 Eaton Corporation Multiple reactant multiple catalyst selective catalytic reduction for NOx abatement in internal combustion engines
US7743602B2 (en) * 2005-06-21 2010-06-29 Exxonmobil Research And Engineering Co. Reformer assisted lean NOx catalyst aftertreatment system and method
US7712308B2 (en) * 2005-11-08 2010-05-11 Tenneco Automotive Operating Company Inc. Selective catalyst reduction of nitrogen oxides with hydrogen
GB0523135D0 (en) * 2005-11-14 2005-12-21 Johnson Matthey Plc Reducing coking over Ag/A1203 HC-SCR catalyst
US7669408B2 (en) * 2005-12-02 2010-03-02 Eaton Corporation LNT desulfation strategy with reformer temperature management
US7562522B2 (en) * 2006-06-06 2009-07-21 Eaton Corporation Enhanced hybrid de-NOx system
JP4704964B2 (ja) * 2006-06-15 2011-06-22 本田技研工業株式会社 ＮＯｘ浄化システム及びＮＯｘ浄化方法
US7624570B2 (en) 2006-07-27 2009-12-01 Eaton Corporation Optimal fuel profiles
KR100892483B1 (ko) * 2006-08-11 2009-04-10 현대자동차주식회사 질소산화물 제거용 이중 층 촉매 시스템
US7814744B2 (en) * 2006-08-24 2010-10-19 Gm Global Technology Operations, Inc. Optimized NOx reduction system
US20080131345A1 (en) 2006-11-30 2008-06-05 Frederic Vitse Multi-bed selective catalytic reduction system and method for reducing nitrogen oxides emissions
JP5173340B2 (ja) * 2007-09-26 2013-04-03 三菱重工業株式会社 排ガス浄化システム
KR100916401B1 (ko) * 2007-12-14 2009-09-07 현대자동차주식회사 입자상물질 및 질소산화물 정화장치
US8245500B2 (en) 2008-07-07 2012-08-21 Delphi Technologies, Inc. Dual catalyst NOx reduction system for exhaust from lean burn internal combustion engines
JP2010110732A (ja) * 2008-11-10 2010-05-20 Toyota Motor Corp 排ガス浄化用触媒
KR101082015B1 (ko) * 2009-02-13 2011-11-10 한국기계연구원 플라즈마 탄화수소 첨가 선택적촉매환원 시스템 및 플라즈마 개질기
JP5195531B2 (ja) * 2009-03-04 2013-05-08 いすゞ自動車株式会社 ディーゼルエンジンの燃焼制御方法およびディーゼルエンジン
US20100251700A1 (en) * 2009-04-02 2010-10-07 Basf Catalysts Llc HC-SCR System for Lean Burn Engines
US8409515B2 (en) * 2009-07-14 2013-04-02 GM Global Technology Operations LLC Exhaust gas treatment system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2704422C2 (ru) * 2015-03-30 2019-10-28 Басф Корпорейшн Многофункциональные фильтры для регулирования выбросов дизельного двигателя

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