BR112018070061A2 - método para a dessulfatação de um catalisador de scr, processo e sistema de tratamento de emissões - Google Patents
método para a dessulfatação de um catalisador de scr, processo e sistema de tratamento de emissõesInfo
- Publication number
- BR112018070061A2 BR112018070061A2 BR112018070061-4A BR112018070061A BR112018070061A2 BR 112018070061 A2 BR112018070061 A2 BR 112018070061A2 BR 112018070061 A BR112018070061 A BR 112018070061A BR 112018070061 A2 BR112018070061 A2 BR 112018070061A2
- Authority
- BR
- Brazil
- Prior art keywords
- treatment
- scr catalyst
- methods
- treatment temperature
- temperature
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 5
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
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- 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
- B01D53/74—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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- B01D53/34—Chemical or biological purification of waste gases
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- B01D53/9404—Removing only nitrogen compounds
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- B01D53/9413—Processes characterised by a specific catalyst
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- 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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- B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
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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
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
- F01N3/106—Auxiliary oxidation catalysts
-
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- 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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Abstract
a presente invenção se refere aos métodos para os catalisadores de scr envenenados por sulfato dessulfatante a baixa temperatura, e aos sistemas de controle de emissão adaptados para aplicar tais métodos dessulfatantes, a fim de regenerar a atividade catalítica de conversão de nox. os métodos são adaptados para o tratamento de um catalisador de scr para dessorver o enxofre a partir da superfície do catalisador de scr e aumentar a atividade de conversão de nox do catalisador de scr, a etapa de tratamento incluindo o tratamento do catalisador de scr com uma corrente gasosa que compreende um redutor para um primeiro período de tratamento e a uma primeira temperatura de tratamento, em que a primeira temperatura de tratamento é de cerca de 350º c ou inferior, seguida por um segundo período de tempo de tratamento e uma segunda temperatura de tratamento superior à temperatura de primeiro tratamento, em que a proporção molar de redutor para o nox durante o tratamento a etapa é de cerca de 1,05:1 ou superior.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN201610187747.1 | 2016-03-29 | ||
CN201610187747.1A CN107233932A (zh) | 2016-03-29 | 2016-03-29 | 用于scr催化剂的脱硫方法 |
PCT/IB2017/051774 WO2017168327A2 (en) | 2016-03-29 | 2017-03-28 | Desulfation method for scr catalyst |
Publications (2)
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BR112018070061A2 true BR112018070061A2 (pt) | 2019-02-12 |
BR112018070061B1 BR112018070061B1 (pt) | 2022-10-11 |
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BR112018070061-4A BR112018070061B1 (pt) | 2016-03-29 | 2017-03-28 | Método para a dessulfatação de um catalisador de redução catalítica seletiva e sistema de tratamento de emissões |
Country Status (9)
Country | Link |
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US (1) | US11097264B2 (pt) |
EP (1) | EP3436191B1 (pt) |
JP (1) | JP6957502B2 (pt) |
KR (1) | KR102345100B1 (pt) |
CN (2) | CN107233932A (pt) |
BR (1) | BR112018070061B1 (pt) |
CA (1) | CA3019364A1 (pt) |
MX (1) | MX2018011930A (pt) |
WO (1) | WO2017168327A2 (pt) |
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WO2018055162A1 (en) * | 2016-09-26 | 2018-03-29 | Shell Internationale Research Maatschappij B.V. | A 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 |
EP3758840A4 (en) * | 2018-02-26 | 2021-10-27 | BASF Corporation | CATALYST FOR EXHAUST GAS TREATMENT OF PETROL ENGINES |
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 |
GB2594211B (en) * | 2019-01-18 | 2023-05-31 | Cummins Emission Solutions Inc | Treated SCR catalysts with enhanced sulfur resistance |
CN109763886A (zh) * | 2019-03-29 | 2019-05-17 | 潍柴动力股份有限公司 | 一种后处理***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 |
EP3919165A1 (en) * | 2020-06-03 | 2021-12-08 | 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 |
BR112023014416A2 (pt) * | 2021-02-19 | 2023-12-12 | Basf Corp | Artigos catalíticos de scr, sistema de tratamento de exaustão, método para tratar um fluxo de exaustão, uso da zeólita de poros pequenos contendo cobre, método para determinar se uma zeólita de poros pequenos promovida por metal é resistente e para avaliar se uma zeólita de poros pequenos promovida por metal é qualificada |
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 |
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 |
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- 2017-03-28 JP JP2018551772A patent/JP6957502B2/ja active Active
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BR112018070061B1 (pt) | 2022-10-11 |
US20190083967A1 (en) | 2019-03-21 |
CA3019364A1 (en) | 2017-10-05 |
JP6957502B2 (ja) | 2021-11-02 |
MX2018011930A (es) | 2019-01-10 |
EP3436191A4 (en) | 2019-12-04 |
KR20180122022A (ko) | 2018-11-09 |
EP3436191B1 (en) | 2023-08-16 |
JP2019516542A (ja) | 2019-06-20 |
CN109311007A (zh) | 2019-02-05 |
EP3436191A2 (en) | 2019-02-06 |
KR102345100B1 (ko) | 2021-12-30 |
WO2017168327A2 (en) | 2017-10-05 |
CN107233932A (zh) | 2017-10-10 |
US11097264B2 (en) | 2021-08-24 |
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