CA3019364A1 - Desulfation method for scr catalyst - Google Patents

Desulfation method for scr catalyst Download PDF

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Publication number
CA3019364A1
CA3019364A1 CA3019364A CA3019364A CA3019364A1 CA 3019364 A1 CA3019364 A1 CA 3019364A1 CA 3019364 A CA3019364 A CA 3019364A CA 3019364 A CA3019364 A CA 3019364A CA 3019364 A1 CA3019364 A1 CA 3019364A1
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CA
Canada
Prior art keywords
scr catalyst
treatment
catalyst
nox
reductant
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA3019364A
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English (en)
French (fr)
Inventor
Xiaofan Yang
Weiyong TANG
Ze Zhang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF Corp
Original Assignee
BASF Corp
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Filing date
Publication date
Application filed by BASF Corp filed Critical BASF Corp
Publication of CA3019364A1 publication Critical patent/CA3019364A1/en
Abandoned legal-status Critical Current

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    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J38/00—Regeneration or reactivation of catalysts, in general
    • B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
    • B01J38/08—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst using ammonia or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
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    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
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    • 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
    • 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
    • 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
    • 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

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  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
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  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Catalysts (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Processes For Solid Components From Exhaust (AREA)
CA3019364A 2016-03-29 2017-03-28 Desulfation method for scr catalyst Abandoned CA3019364A1 (en)

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CN201610187747.1A CN107233932A (zh) 2016-03-29 2016-03-29 用于scr催化剂的脱硫方法
CN201610187747.1 2016-03-29
PCT/IB2017/051774 WO2017168327A2 (en) 2016-03-29 2017-03-28 Desulfation method for scr catalyst

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Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10843132B2 (en) * 2016-09-26 2020-11-24 Shell Oil Company Method of reducing nitrogen oxide compounds
WO2018055165A1 (en) 2016-09-26 2018-03-29 Shell Internationale Research Maatschappij B.V. Method of regenerating a denox catalyst
US10309278B2 (en) * 2017-10-03 2019-06-04 GM Global Technology Operations LLC Method for desulfurization of selective catalytic reduction devices
BR112020017344A2 (pt) * 2018-02-26 2020-12-15 Basf Corporation Catalisadores, catalisador de tratamento posterior de gases, processo de preparação do catalisador, métodos de tratamento e sistema de purificação
CN108722436A (zh) * 2018-06-04 2018-11-02 浙江大学 一种解决低温scr脱硝催化剂so2中毒的方法
DE112020000444T5 (de) * 2019-01-18 2021-09-30 Cummins Emission Solutions Inc. Behandelte SCR-Katalysatoren mit verbesserter Schwefelbeständigkeit
CN109763886A (zh) * 2019-03-29 2019-05-17 潍柴动力股份有限公司 一种后处理系统及其控制方法
GB2596680B (en) 2019-04-09 2022-12-21 Cummins Emission Solutions Inc Systems and methods for desulfation of catalysts included in aftertreatment systems
CN110585872B (zh) * 2019-10-11 2021-08-10 安徽天顺环保设备股份有限公司 一种除尘脱硫脱硝一体化塔
CN110700926B (zh) * 2019-11-25 2022-04-29 东风商用车有限公司 一种实现scr脱硫再生的控制方法
US12168951B2 (en) 2020-04-21 2024-12-17 Cummins Inc. Systems and methods for selective catalytic reduction and/or ammonia slip catalyst sulfur protection
EP3919165B1 (en) * 2020-06-03 2025-08-13 Johnson Matthey Public Limited Company Method for forming a catalyst article
CN111770141B (zh) * 2020-06-12 2021-09-10 吉林大学 一种基于车联网的车辆燃油含硫量的评估方法
JP2023531487A (ja) * 2020-06-25 2023-07-24 ビーエーエスエフ コーポレーション ゼオライト含有ｓｃｒ触媒
CN114135374A (zh) * 2020-09-04 2022-03-04 罗伯特·博世有限公司 车辆scr系统及其脱硫触发方法和装置
US20240226862A9 (en) * 2021-02-19 2024-07-11 Basf Corporation Sulfur-resistant metal promoted small pore zeolite catalysts
CN115680837B (zh) * 2022-10-31 2024-01-09 苏州清研博浩汽车科技有限公司 一种scr脱硫方法、装置及电子设备
CN116181457B (zh) * 2023-03-29 2025-08-29 煤炭科学研究总院有限公司 氢燃料电池车尾氢消除装置
WO2025002948A1 (en) 2023-06-30 2025-01-02 Umicore Ag & Co. Kg SCR CATALYSTS FOR IMPROVED NOx REDUCTION
CN117531548B (zh) * 2024-01-09 2024-03-08 河北汉唐宏远环保科技有限公司 一种废弃scr脱硝催化剂的再生工艺

Family Cites Families (33)

* 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
JPS5612170B2 (enExample) 1974-12-17 1981-03-19
US4043939A (en) * 1975-10-10 1977-08-23 Kurashiki Boseki Kabushiki Kaisha Reactivation of catalysts useful for nitrogen oxide removal
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
US5525317A (en) 1994-11-04 1996-06-11 The Babcock & Wilcox Company Ammonia reagent application for NOX SOX and particulate emission control
US6162415A (en) 1997-10-14 2000-12-19 Exxon Chemical Patents Inc. Synthesis of SAPO-44
JP3557578B2 (ja) * 1997-12-04 2004-08-25 日立造船株式会社 廃棄物焼却炉の排ガス処理方法
JP2001113131A (ja) * 1999-10-14 2001-04-24 Research Institute Of Innovative Technology For The Earth 脱硝触媒の再生方法
US7254789B1 (en) 2004-12-01 2007-08-07 Altera Corporation Optimizing long-path and short-path timing and accounting for manufacturing and operating condition variability
US7669408B2 (en) * 2005-12-02 2010-03-02 Eaton Corporation LNT desulfation strategy with reformer temperature management
US7776293B2 (en) * 2007-08-02 2010-08-17 Babcock & Wilcox Power Generation Group, Inc. Low-temperature, moving bed catalytic reactor for control of NOx emissions from combustion
JP5037283B2 (ja) 2007-09-26 2012-09-26 本田技研工業株式会社 内燃機関の排気浄化装置
US7998443B2 (en) * 2009-04-17 2011-08-16 Johnson Matthey Public Limited Company Small pore molecular sieve supported copper catalysts durable against lean/rich aging for the reduction of nitrogen oxides
US8246922B2 (en) * 2009-10-02 2012-08-21 Basf Corporation Four-way diesel catalysts and methods of use
CN102575547B (zh) * 2009-10-20 2014-04-23 丰田自动车株式会社 内燃机的排气净化系统
WO2012083182A2 (en) 2010-12-16 2012-06-21 Cooper Technologies Company Controlling current flowing through leds in a led light fixture
DE102010055728A1 (de) 2010-12-22 2012-06-28 Süd-Chemie AG Verfahren zur Umsetzung stickstoffhaltiger Verbindungen
US8765623B2 (en) * 2012-04-26 2014-07-01 Caterpillar Inc. Method for exhaust gas after treatment
JP6469578B2 (ja) 2012-10-19 2019-02-13 ビーエーエスエフ コーポレーション 混合金属８員環小孔分子ふるい触媒組成物、触媒製品、システム及び方法
DE112014000573B4 (de) * 2013-02-16 2024-09-05 Cummins Inc. System, Verfahren und Vorrichtung zur verbesserten Entschwefelung von Nachbehandlungskomponenten
US9080524B2 (en) * 2013-02-25 2015-07-14 Cummins, Inc. System, method, and apparatus for sulfur recovery on an SCR catalyst
KR101445038B1 (ko) * 2013-06-28 2014-09-26 두산엔진주식회사 선택적 촉매 환원 및 촉매 재생 시스템
JP6133183B2 (ja) * 2013-09-25 2017-05-24 キャタピラー エス エー アール エル エンジンの排気浄化装置
KR101684502B1 (ko) * 2013-11-22 2016-12-08 현대자동차 주식회사 배기 가스 정화 장치 및 배기 가스 정화 방법
CN105813745B (zh) 2013-12-06 2019-11-05 庄信万丰股份有限公司 包含两种不同贵金属-分子筛催化剂的废气催化剂
JP6326309B2 (ja) 2014-07-02 2018-05-16 ルネサスエレクトロニクス株式会社 アイソレータ、半導体装置及びアイソレータの制御方法
JP2016205351A (ja) 2015-04-28 2016-12-08 トヨタ自動車株式会社 内燃機関の排気浄化制御システム
CN105396594A (zh) * 2015-11-04 2016-03-16 雷春生 一种低温同步脱硫脱硝催化剂的制备方法
CN105688936A (zh) * 2016-01-20 2016-06-22 西南化工研究设计院有限公司 一种硫铵中毒脱硝催化剂的原位再生方法
US10309278B2 (en) * 2017-10-03 2019-06-04 GM Global Technology Operations LLC Method for desulfurization of selective catalytic reduction devices
CN108722436A (zh) * 2018-06-04 2018-11-02 浙江大学 一种解决低温scr脱硝催化剂so2中毒的方法

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JP6957502B2 (ja) 2021-11-02
KR20180122022A (ko) 2018-11-09
CN107233932A (zh) 2017-10-10
MX2018011930A (es) 2019-01-10
KR102345100B1 (ko) 2021-12-30
WO2017168327A3 (en) 2018-08-23
EP3436191A2 (en) 2019-02-06
EP3436191B1 (en) 2023-08-16
CN109311007A (zh) 2019-02-05
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BR112018070061A2 (pt) 2019-02-12
WO2017168327A2 (en) 2017-10-05

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