CN107233932A - 用于scr催化剂的脱硫方法 - Google Patents
用于scr催化剂的脱硫方法 Download PDFInfo
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- CN107233932A CN107233932A CN201610187747.1A CN201610187747A CN107233932A CN 107233932 A CN107233932 A CN 107233932A CN 201610187747 A CN201610187747 A CN 201610187747A CN 107233932 A CN107233932 A CN 107233932A
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- catalyst
- temperature
- molecular sieve
- scr catalyst
- nox
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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 |
| JP2018551772A JP6957502B2 (ja) | 2016-03-29 | 2017-03-28 | Scr触媒の脱硫方法 |
| CA3019364A CA3019364A1 (en) | 2016-03-29 | 2017-03-28 | Desulfation method for scr catalyst |
| PCT/IB2017/051774 WO2017168327A2 (en) | 2016-03-29 | 2017-03-28 | Desulfation method for scr catalyst |
| EP17773405.0A EP3436191B1 (en) | 2016-03-29 | 2017-03-28 | Desulfation method for scr catalyst |
| CN201780033193.2A CN109311007A (zh) | 2016-03-29 | 2017-03-28 | 用于scr催化剂的脱硫方法 |
| 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 |
| MX2018011930A MX2018011930A (es) | 2016-03-29 | 2017-03-28 | Metodo de desulfacion para un catalizador de scr. |
| KR1020187030729A KR102345100B1 (ko) | 2016-03-29 | 2017-03-28 | Scr 촉매에 대한 탈황 방법 |
| US16/142,451 US11097264B2 (en) | 2016-03-29 | 2018-09-26 | Desulfation method for SCR catalyst |
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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 |
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| EP (1) | EP3436191B1 (enExample) |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN109595059A (zh) * | 2017-10-03 | 2019-04-09 | 通用汽车环球科技运作有限责任公司 | 用于选择性催化还原装置的脱硫方法 |
| CN110700926A (zh) * | 2019-11-25 | 2020-01-17 | 东风商用车有限公司 | 一种实现scr脱硫再生的控制方法 |
| CN111801160A (zh) * | 2018-02-26 | 2020-10-20 | 巴斯夫公司 | 用于汽油机废气后处理的催化剂 |
| CN113316480A (zh) * | 2019-01-18 | 2021-08-27 | 康明斯排放处理公司 | 具有增强的抗硫性的经处理的scr催化剂 |
| 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 |
| WO2022174814A1 (en) * | 2021-02-19 | 2022-08-25 | Basf Corporation | Sulfur-resistant metal promoted small pore zeolite catalysts |
| CN115680837A (zh) * | 2022-10-31 | 2023-02-03 | 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 |
| US20230249164A1 (en) * | 2020-06-25 | 2023-08-10 | Basf Corporation | Zeolite-Containing SCR Catalyst |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109789372A (zh) * | 2016-09-26 | 2019-05-21 | 国际壳牌研究有限公司 | 减少氮氧化物化合物的方法 |
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| 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 |
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| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132107A (zh) * | 1994-11-04 | 1996-10-02 | 巴布考克及威尔考克斯公司 | 氨试剂在控制NOx,SOx和微粒散发中的应用 |
| US20090035200A1 (en) * | 2007-08-02 | 2009-02-05 | William Downs | LOW-TEMPERATURE, MOVING BED CATALYTIC REACTOR FOR CONTROL OF NOx EMISSIONS FROM COMBUSTION |
| CN102575547A (zh) * | 2009-10-20 | 2012-07-11 | 丰田自动车株式会社 | 内燃机的排气净化系统 |
| CN105026716A (zh) * | 2013-02-16 | 2015-11-04 | 康明斯有限公司 | 用于后处理组件的改进脱硫的系统、方法和设备 |
| 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 |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB868846A (en) | 1957-08-26 | 1961-05-25 | Union Carbide Corp | Improvements in and relating to zeolites |
| US3030181A (en) | 1957-08-26 | 1962-04-17 | Union Carbide Corp | Crystalline zeolite r |
| 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 |
| 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 |
| 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 |
| WO2010121257A1 (en) * | 2009-04-17 | 2010-10-21 | 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 |
| 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 |
| WO2014062944A1 (en) | 2012-10-19 | 2014-04-24 | Basf Corporation | Mixed metal 8-ring small pore molecular sieve catalyst compositions, catalytic articles, systems and methods |
| US9657665B2 (en) * | 2013-02-25 | 2017-05-23 | 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 |
| RU2680525C1 (ru) | 2013-12-06 | 2019-02-22 | Джонсон Мэтти Паблик Лимитед Компани | Катализатор для выхлопных газов, содержащий два различных катализатора благородный металл/молекулярное сито |
| 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 |
| 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 |
-
2016
- 2016-03-29 CN CN201610187747.1A patent/CN107233932A/zh active Pending
-
2017
- 2017-03-28 MX MX2018011930A patent/MX2018011930A/es unknown
- 2017-03-28 JP JP2018551772A patent/JP6957502B2/ja active Active
- 2017-03-28 CA CA3019364A patent/CA3019364A1/en not_active Abandoned
- 2017-03-28 EP EP17773405.0A patent/EP3436191B1/en active Active
- 2017-03-28 CN CN201780033193.2A patent/CN109311007A/zh active Pending
- 2017-03-28 WO PCT/IB2017/051774 patent/WO2017168327A2/en not_active Ceased
- 2017-03-28 BR BR112018070061-4A patent/BR112018070061B1/pt active IP Right Grant
- 2017-03-28 KR KR1020187030729A patent/KR102345100B1/ko active Active
-
2018
- 2018-09-26 US US16/142,451 patent/US11097264B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132107A (zh) * | 1994-11-04 | 1996-10-02 | 巴布考克及威尔考克斯公司 | 氨试剂在控制NOx,SOx和微粒散发中的应用 |
| US20090035200A1 (en) * | 2007-08-02 | 2009-02-05 | William Downs | LOW-TEMPERATURE, MOVING BED CATALYTIC REACTOR FOR CONTROL OF NOx EMISSIONS FROM COMBUSTION |
| CN101772374A (zh) * | 2007-08-02 | 2010-07-07 | 巴布科克和威尔科克斯能量产生集团公司 | 用于控制燃烧的NOx排放的低温移动床催化反应器 |
| CN102575547A (zh) * | 2009-10-20 | 2012-07-11 | 丰田自动车株式会社 | 内燃机的排气净化系统 |
| CN105026716A (zh) * | 2013-02-16 | 2015-11-04 | 康明斯有限公司 | 用于后处理组件的改进脱硫的系统、方法和设备 |
| 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 |
Non-Patent Citations (4)
| Title |
|---|
| ASHOK KUMAR ET AL.: "impact of different forms of feed sulfur on small-pore Cu-zeolite SCR catalyst", 《CATALYSIS TODAY》 * |
| D. WILLIAM BROOKSHEAR ET AL.: "Impact of sulfation and desulfation on NOx reduction using Cu-chabazite SCR catalysts", 《CATALYSIS TODAY》 * |
| LI ZHANG ET AL.: "SO2 poisoning impact on the NH3-SCR reaction over a commercial Cu-SAPO-34 SCR catalyst", 《APPLIED CATALYSIS B: ENVIRONMENTAL》 * |
| 梁国安: "《电站锅炉操作技术》", 31 October 2012 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595059A (zh) * | 2017-10-03 | 2019-04-09 | 通用汽车环球科技运作有限责任公司 | 用于选择性催化还原装置的脱硫方法 |
| CN111801160A (zh) * | 2018-02-26 | 2020-10-20 | 巴斯夫公司 | 用于汽油机废气后处理的催化剂 |
| 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 |
| CN113316480A (zh) * | 2019-01-18 | 2021-08-27 | 康明斯排放处理公司 | 具有增强的抗硫性的经处理的scr催化剂 |
| CN110700926A (zh) * | 2019-11-25 | 2020-01-17 | 东风商用车有限公司 | 一种实现scr脱硫再生的控制方法 |
| US20230249164A1 (en) * | 2020-06-25 | 2023-08-10 | Basf Corporation | Zeolite-Containing SCR Catalyst |
| 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 |
| WO2022174814A1 (en) * | 2021-02-19 | 2022-08-25 | Basf Corporation | Sulfur-resistant metal promoted small pore zeolite catalysts |
| CN116867562A (zh) * | 2021-02-19 | 2023-10-10 | 巴斯夫公司 | 耐硫的金属促进型小孔沸石催化剂 |
| EP4294550A4 (en) * | 2021-02-19 | 2024-12-25 | BASF Corporation | SMALL PORE, METAL-ACTIVATED, SULFUR-RESISTANT ZEOLITE CATALYSTS |
| CN116867562B (zh) * | 2021-02-19 | 2025-11-04 | 巴斯夫公司 | 耐硫的金属促进型小孔沸石催化剂 |
| CN115680837A (zh) * | 2022-10-31 | 2023-02-03 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019516542A (ja) | 2019-06-20 |
| JP6957502B2 (ja) | 2021-11-02 |
| EP3436191A4 (en) | 2019-12-04 |
| BR112018070061B1 (pt) | 2022-10-11 |
| CA3019364A1 (en) | 2017-10-05 |
| CN109311007A (zh) | 2019-02-05 |
| US20190083967A1 (en) | 2019-03-21 |
| KR20180122022A (ko) | 2018-11-09 |
| WO2017168327A3 (en) | 2018-08-23 |
| US11097264B2 (en) | 2021-08-24 |
| BR112018070061A2 (pt) | 2019-02-12 |
| WO2017168327A2 (en) | 2017-10-05 |
| EP3436191A2 (en) | 2019-02-06 |
| MX2018011930A (es) | 2019-01-10 |
| KR102345100B1 (ko) | 2021-12-30 |
| EP3436191B1 (en) | 2023-08-16 |
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