RU2015143694A - Каталитическая система селективного каталитического восстановления - Google Patents

Каталитическая система селективного каталитического восстановления Download PDF

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RU2015143694A
RU2015143694A RU2015143694A RU2015143694A RU2015143694A RU 2015143694 A RU2015143694 A RU 2015143694A RU 2015143694 A RU2015143694 A RU 2015143694A RU 2015143694 A RU2015143694 A RU 2015143694A RU 2015143694 A RU2015143694 A RU 2015143694A
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catalytic
composition
titanium oxide
formation
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RU2015143694A
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Вэйюн ТАН
Джая Л. МОХАНАН
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Басф Корпорейшн
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    • Y10S502/52712—Plural layers on a support, each layer having a distinct function
    • Y10S502/52713—More than two overlapping layers

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Claims (15)

1. Каталитическая система селективного каталитического восстановления (СКВ), содержащая первый каталитический состав СКВ и второй каталитический состав СКВ, размещенные в системе, при этом первый каталитический состав СКВ способствует большему образованию N2 и меньшему образованию N2O, чем второй каталитический состав СКВ, а второй каталитический состав СКВ отличается по содержанию от первого каталитического состава СКВ, при этом второй каталитический состав СКВ способствует меньшему образованию N2 и большему образованию N2O, чем первый каталитический состав СКВ, при этом первый каталитический состав СКВ и второй каталитический состав СКВ находятся в наслоенном взаиморасположении, и первый каталитический состав СКВ наслоен поверх второго каталитического состава СКВ.
2. Каталитическая система СКВ по п. 1, отличающаяся тем, что первый каталитический состав СКВ содержит смешанный оксид.
3. Каталитическая система СКВ по п. 2, отличающаяся тем, что смешанный оксид выбран из Fe/ оксида титана, Fe/ оксида алюминия, Mg/ оксида титана, Cu/ оксида титана, Се/ Zr, оксида ванадия/ оксида титана и их смесей.
4. Каталитическая система СКВ по п. 2, отличающаяся тем, что смешанный оксид содержит оксид ванадия/ оксид титана.
5. Каталитическая система СКВ по п. 4, отличающаяся тем, что оксид ванадия/ оксид титана стабилизированы вольфрамом.
6. Каталитическая система СКВ по любому из пп. 1-5, отличающаяся тем, что второй катализатор СКВ содержит замещенное металлом 8-кольцевое микропористое молекулярное сито.
7. Каталитическая система селективного каталитического восстановления (СКВ), содержащая первый каталитический состав СКВ, содержащий оксид ванадия/ оксид титана, размещенный на носителе, и второй каталитический состав СКВ, содержащий замещенное металлом 8-кольцевое микропористое молекулярное сито, размещенное на носителе, при этом первый каталитический состав СКВ и второй каталитический состав СКВ находятся в наслоенном взаиморасположении, и первый каталитический состав СКВ наслоен поверх второго каталитического состава СКВ.
8. Каталитическая система СКВ по п. 6 или 7, отличающаяся тем, что молекулярное сито имеет тип каркаса, выбранный из группы, состоящей из AEI, AFT, AFX, СНА, ЕАВ, ERI, KFI, LEV, SAS, SAT, DDR, и SAV.
9. Каталитическая система СКВ по п. 7 или 8, отличающаяся тем, что молекулярное сито является алюмосиликатным цеолитом с типом каркаса СНА.
10. Катализатор по п. 9, отличающийся тем, что цеолит выбран из SSZ-13 и SSZ-62.
11. Каталитическая система по любому из пп. 7, 8, 10, отличающаяся тем, что металл выбран из группы, состоящей из Cu, Fe, Со, Се и Ni.
12. Каталитическая система по любому из пп. 7, 8, 10, отличающаяся тем, что металл выбран из Cu и замещается в диапазоне от 2 до 8% по массе.
13. Каталитическая система по п. 7, отличающаяся тем, что оксид ванадия/ оксид титана способствует большему образованию N2 и меньшему образованию N2O, чем замещенное металлом 8-кольцевое микропористое молекулярное сито, и при этом замещенное металлом 8-кольцевое микропористое молекулярное сито способствует меньшему образованию N2 и большему образованию N2O, чем оксид ванадия/ оксид титана, и замещенное металлом 8-кольцевое микропористое молекулярное сито имеет большую накопительную вместимость аммиака, чем оксид ванадия/ оксид титана.
14. Система очистки выхлопных газов двигателя на обедненной топливной смеси, содержащая каталитическую систему по любому из пп. 1-14, двигатель на обедненной топливной смеси и трубку выхлопных газов, сообщающуюся по текучей среде с двигателем на обедненной топливной смеси, при этом каталитическая система расположена ниже выхода из двигателя.
15. Способ удаления оксидов азота из выхлопного газа двигателя на обедненной топливной смеси, включающий контакт потока выхлопного газа и каталитической системы по любому из пп. 1-13.
RU2015143694A 2013-03-14 2014-03-13 Каталитическая система селективного каталитического восстановления RU2015143694A (ru)

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Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201207313D0 (en) 2012-04-24 2012-06-13 Johnson Matthey Plc Filter substrate comprising three-way catalyst
GB2513364B (en) * 2013-04-24 2019-06-19 Johnson Matthey Plc Positive ignition engine and exhaust system comprising catalysed zone-coated filter substrate
CN105188924B (zh) 2013-03-14 2017-10-27 巴斯夫公司 选择性催化还原催化剂系统
GB2512648B (en) * 2013-04-05 2018-06-20 Johnson Matthey Plc Filter substrate comprising three-way catalyst
US9517457B2 (en) * 2013-10-30 2016-12-13 Cummins Inc. Aftertreatment systems with reduced N2O generation
CN105814292B (zh) * 2013-12-11 2018-11-30 株式会社科特拉 排气净化材料
US10335736B2 (en) * 2013-12-11 2019-07-02 Cataler Corporation Exhaust gas purification material
GB2533448B (en) * 2014-08-07 2017-06-28 Johnson Matthey Plc Zoned catalyst for treating exhaust gas
KR20170041900A (ko) * 2014-08-15 2017-04-17 존슨 맛쎄이 퍼블릭 리미티드 컴파니 배기가스를 처리하기 위한 구역화된 촉매
KR102428707B1 (ko) * 2014-10-07 2022-08-04 존슨 맛쎄이 퍼블릭 리미티드 컴파니 배기가스를 처리하기 위한 분자체 촉매
JP2018503578A (ja) * 2014-11-14 2018-02-08 ジョンソン、マッセイ、パブリック、リミテッド、カンパニーＪｏｈｎｓｏｎ Ｍａｔｔｈｅｙ Ｐｕｂｌｉｃｌｉｍｉｔｅｄ Ｃｏｍｐａｎｙ Ａｆｘゼオライト
JP2016150277A (ja) * 2015-02-16 2016-08-22 イビデン株式会社 ハニカム触媒
CA2977523C (en) 2015-02-27 2023-05-02 Basf Corporation Exhaust gas treatment system
JP6895894B2 (ja) * 2015-03-30 2021-06-30 ビーエーエスエフ コーポレーション ディーゼル排出物制御のための多機能フィルタ
US10113462B2 (en) * 2015-04-24 2018-10-30 Cummins Inc. Advanced exhaust aftertreatment system architecture
MX2017016112A (es) * 2015-06-12 2018-02-21 Basf Corp Sistema de tratamiento de gases de escape.
WO2016201276A1 (en) * 2015-06-12 2016-12-15 Basf Corporation Exhaust gas treatment system
EP3310462B1 (en) * 2015-06-18 2019-07-31 Johnson Matthey Public Limited Company Nh3 overdosing-tolerant scr catalyst
BR112019001997B1 (pt) * 2016-08-05 2023-04-18 Basf Corporation Artigo de redução catalítica seletiva, sistemas de tratamento de gases de exaustão e método para tratar uma corrente de exaustão
JP7408392B2 (ja) 2016-10-24 2024-01-05 ビーエーエスエフ コーポレーション ＮＯｘ削減のための一体化ＳＣＲ触媒およびＬＮＴ
KR101879695B1 (ko) 2016-12-02 2018-07-18 희성촉매 주식회사 2가 구리 이온들을 특정비율로 담지한 제올라이트, 이의 제조방법 및 이를 포함하는 촉매조성물
US11300029B2 (en) 2016-12-20 2022-04-12 Umicore Ag & Co, Kg SCR catalyst device containing vanadium oxide and molecular sieve containing iron
CN110099732A (zh) 2016-12-20 2019-08-06 优美科股份公司及两合公司 含有氧化钒和含有铁的分子筛的scr催化剂装置
JP6693406B2 (ja) * 2016-12-20 2020-05-13 三菱自動車工業株式会社 排気ガス浄化装置
US10184374B2 (en) * 2017-02-21 2019-01-22 Umicore Ag & Co. Kg Apparatus and method for desulfation of a catalyst used in a lean burn methane source fueled combustion system
KR102571848B1 (ko) * 2017-02-22 2023-08-30 바스프 코포레이션 질소 산화물 저감을 위한 배기 가스 처리 촉매
CN106902823B (zh) * 2017-03-22 2019-04-23 中国人民大学 一种耐氯耐硫中毒的核壳结构脱硝催化剂及其制备方法
GB201705279D0 (en) * 2017-03-31 2017-05-17 Johnson Matthey Plc Selective catalytic reduction catalyst
JP2020515766A (ja) 2017-04-04 2020-05-28 ビーエーエスエフ コーポレーション 統合された排出制御システム
EP3607181B1 (en) 2017-04-04 2024-02-28 BASF Corporation Ammonia generation system for nox emission control
WO2018185665A1 (en) 2017-04-04 2018-10-11 Basf Corporation Hydrogen-assisted integrated emission control system
BR112019020830A2 (pt) 2017-04-04 2020-05-12 Basf Corporation Sistema a bordo de veículo, veículo e método para geração de hidrogênio a bordo de veículo
KR102484742B1 (ko) 2017-04-04 2023-01-05 바스프 코포레이션 차량 내장식 수소 생성 및 배기 스트림에서의 용도
KR102568461B1 (ko) 2017-04-04 2023-08-21 바스프 코포레이션 촉매작용에 의한 오염 저감을 위한 수소 환원제
DE102017006059A1 (de) * 2017-06-27 2018-12-27 Daimler Ag Abgasanlage für einen Kraftwagen
CN109833907B (zh) * 2017-11-29 2021-10-15 中国科学院大连化学物理研究所 一种具备储放氨性能的低温耐硫焦炉烟气脱硝催化剂
EP3533510A1 (en) * 2018-02-28 2019-09-04 Infuser IP ApS An exhaust gas treatment method and system arranged for treating exhaust gases
US20190353071A1 (en) * 2018-05-18 2019-11-21 GM Global Technology Operations LLC Selective catalytic reduction device control
CN108762111A (zh) * 2018-06-05 2018-11-06 北京航空航天大学 一种基于apso算法的柴油机双串联scr系统建模方法
US10865689B2 (en) 2018-09-21 2020-12-15 Cummins Inc. Systems and methods for diagnosis of NOx storage catalyst
JPWO2020149315A1 (ja) * 2019-01-15 2021-12-02 日立造船株式会社 排ガス浄化用触媒および排ガス浄化用触媒の製造方法
DE102019101486A1 (de) * 2019-01-22 2020-07-23 Umicore Ag & Co. Kg Abgasnachbehandlungssystem für einen Verbrennungsmotor
WO2021126935A1 (en) 2019-12-19 2021-06-24 Basf Corporation Exhaust treatment system for ammonia-fueled vehicles
US20240131498A1 (en) * 2021-02-19 2024-04-25 Basf Corporation Sulfur-resistant metal promoted small pore zeolite catalysts
CN114433202A (zh) * 2021-12-23 2022-05-06 惠州市瑞合环保科技有限公司 一种柴油机尾气净化scr催化剂及其涂敷工艺
WO2023244279A1 (en) 2022-06-17 2023-12-21 Basf Corporation Exhaust treatment system for ammonia-fueled vehicles

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030181A (en) 1957-08-26 1962-04-17 Union Carbide Corp Crystalline zeolite r
GB868846A (en) 1957-08-26 1961-05-25 Union Carbide Corp Improvements in and relating to zeolites
US4268488A (en) 1979-05-10 1981-05-19 Uop Inc. Process for the catalytic reduction of nitrogen oxides in gaseous mixtures
US4544538A (en) 1982-07-09 1985-10-01 Chevron Research Company Zeolite SSZ-13 and its method of preparation
US4440871A (en) 1982-07-26 1984-04-03 Union Carbide Corporation Crystalline silicoaluminophosphates
US4735927A (en) 1985-10-22 1988-04-05 Norton Company Catalyst for the reduction of oxides of nitrogen
US4798813A (en) 1986-07-04 1989-01-17 Babcock-Hitachi Kabushiki Kaisha Catalyst for removing nitrogen oxide and process for producing the catalyst
CA1295598C (en) * 1986-07-29 1992-02-11 Makoto Imanari Process for removing nitrogen oxides from exhaust gases
US5024981A (en) 1989-04-20 1991-06-18 Engelhard Corporation Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same
US5409681A (en) * 1991-11-27 1995-04-25 Babcock-Hitachi Kabushiki Kaisha Catalyst for purifying exhaust gas
ES2083301T3 (es) 1993-03-26 1996-04-01 Siemens Ag Catalizador para la reduccion de oxido de nitrogeno en el gas de escape de un motor de combustion interna.
US6162415A (en) 1997-10-14 2000-12-19 Exxon Chemical Patents Inc. Synthesis of SAPO-44
WO2000006493A1 (en) 1998-07-29 2000-02-10 Exxon Chemical Patents, Inc. Processes for manufacture of molecular sieves
US6125629A (en) 1998-11-13 2000-10-03 Engelhard Corporation Staged reductant injection for improved NOx reduction
US7438878B2 (en) * 2001-03-12 2008-10-21 Basf Catalysts Llc Selective catalytic reduction of N2O
DE10226461A1 (de) * 2002-06-13 2004-01-22 Uhde Gmbh Verfahren und Vorrichtung zur Verringerung des Gehaltes an NOx und N2O in Gasen
KR100629604B1 (ko) 2004-12-31 2006-09-27 동부일렉트로닉스 주식회사 반도체 소자의 게이트 라인 형성 방법
DE102005022650A1 (de) * 2005-05-11 2006-11-16 Uhde Gmbh Verfahren zur Verringerung des Gehaltes an Stickoxiden in Gasen
US20100166628A1 (en) 2006-02-15 2010-07-01 Nicola Soeger Catalyst for reducing nitrogen-containing pollutants from the exhaust gases of diesel engines
DE102006031660A1 (de) 2006-07-08 2008-01-17 Man Nutzfahrzeuge Ag Anordnung zur Verminderung von Stickoxiden in Abgasen
DE102007003155A1 (de) * 2007-01-22 2008-07-24 Süd-Chemie AG Katalysatorzusammensetzung zur Reduktion von Stickoxiden
AR065501A1 (es) * 2007-02-27 2009-06-10 Basf Catalysts Llc Catalizadores de zeolita cha de cobre
US20090196812A1 (en) 2008-01-31 2009-08-06 Basf Catalysts Llc Catalysts, Systems and Methods Utilizing Non-Zeolitic Metal-Containing Molecular Sieves Having the CHA Crystal Structure
GB2475740B (en) * 2009-11-30 2017-06-07 Johnson Matthey Plc Catalysts for treating transient NOx emissions
US8617497B2 (en) 2010-04-20 2013-12-31 Umicore Ag & Co. Kg Mixed oxide materials for the selective catalytic reduction of nitrogen oxides in exhaust gases
US8741240B2 (en) * 2010-12-27 2014-06-03 N.E. Chemcat Corporation Selective reduction catalyst, and exhaust gas purification device and exhaust gas purification method using same
BR112014002409B1 (pt) * 2011-08-03 2020-03-10 Johnson Matthey Plc Método para a produção de catalisador alveolar extrusado.

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