RU2702988C2 - Катализаторы scr с улучшенной низкотемпературной эффективностью и способы их создания и использования - Google Patents
Катализаторы scr с улучшенной низкотемпературной эффективностью и способы их создания и использования Download PDFInfo
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- RU2702988C2 RU2702988C2 RU2016138284A RU2016138284A RU2702988C2 RU 2702988 C2 RU2702988 C2 RU 2702988C2 RU 2016138284 A RU2016138284 A RU 2016138284A RU 2016138284 A RU2016138284 A RU 2016138284A RU 2702988 C2 RU2702988 C2 RU 2702988C2
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- molecular sieve
- iron
- temperature
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- containing molecular
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- 239000003054 catalyst Substances 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 69
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 304
- 239000002808 molecular sieve Substances 0.000 claims abstract description 149
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 149
- 229910052742 iron Inorganic materials 0.000 claims abstract description 142
- 238000010335 hydrothermal treatment Methods 0.000 claims abstract description 87
- 239000010457 zeolite Substances 0.000 claims abstract description 81
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 69
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000012298 atmosphere Substances 0.000 claims abstract description 63
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000010531 catalytic reduction reaction Methods 0.000 claims abstract description 21
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004202 carbamide Substances 0.000 claims abstract description 12
- 230000001590 oxidative effect Effects 0.000 claims description 45
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 31
- 229910001657 ferrierite group Inorganic materials 0.000 claims description 31
- 239000000843 powder Substances 0.000 claims description 21
- 229910021529 ammonia Inorganic materials 0.000 claims description 15
- 150000002505 iron Chemical class 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 51
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 65
- 239000007789 gas Substances 0.000 description 52
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 25
- 238000001354 calcination Methods 0.000 description 14
- 239000011148 porous material Substances 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- 238000002156 mixing Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 238000001228 spectrum Methods 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 238000005470 impregnation Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- UNYSKUBLZGJSLV-UHFFFAOYSA-L calcium;1,3,5,2,4,6$l^{2}-trioxadisilaluminane 2,4-dioxide;dihydroxide;hexahydrate Chemical compound O.O.O.O.O.O.[OH-].[OH-].[Ca+2].O=[Si]1O[Al]O[Si](=O)O1.O=[Si]1O[Al]O[Si](=O)O1 UNYSKUBLZGJSLV-UHFFFAOYSA-L 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 6
- 229910052676 chabazite Inorganic materials 0.000 description 6
- 238000005342 ion exchange Methods 0.000 description 6
- -1 iron-activated zeolite Chemical class 0.000 description 6
- 150000002894 organic compounds Chemical class 0.000 description 6
- 238000007669 thermal treatment Methods 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 238000001694 spray drying Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 238000004813 Moessbauer spectroscopy Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000001669 Mossbauer spectrum Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004584 57Fe Moessbauer spectroscopy Methods 0.000 description 1
- 241000269350 Anura Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 240000006829 Ficus sundaica Species 0.000 description 1
- 230000010757 Reduction Activity Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 238000001055 reflectance spectroscopy Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B01D2255/20—Metals or compounds thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2255/502—Beta zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2255/50—Zeolites
- B01D2255/504—ZSM 5 zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
- B01D2258/012—Diesel engines and lean burn gasoline engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
- B01J2229/186—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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- B01J2229/30—After treatment, characterised by the means used
- B01J2229/36—Steaming
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/30—After treatment, characterised by the means used
- B01J2229/40—Special temperature treatment, i.e. other than just for template removal
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0027—Powdering
- B01J37/0045—Drying a slurry, e.g. spray drying
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- 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
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| US201461946065P | 2014-02-28 | 2014-02-28 | |
| US61/946,065 | 2014-02-28 | ||
| PCT/GB2015/050569 WO2015128663A1 (en) | 2014-02-28 | 2015-02-27 | Scr catalysts having improved low temperature performance, and methods of making and using the same |
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| RU2016138284A RU2016138284A (ru) | 2018-04-02 |
| RU2016138284A3 RU2016138284A3 (enExample) | 2019-02-18 |
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| CN106029228A (zh) * | 2014-02-28 | 2016-10-12 | 庄信万丰股份有限公司 | 具有改进的低温性能的scr催化剂,及其制造和使用方法 |
| CN106061901A (zh) * | 2014-03-26 | 2016-10-26 | 三菱树脂株式会社 | 含过渡金属沸石的制造方法、和通过该方法得到的过渡金属沸石以及使用该沸石的废气净化处理用催化剂 |
| RU2701529C2 (ru) * | 2015-02-27 | 2019-09-27 | Басф Корпорейшн | Система обработки выхлопного газа |
| GB2551871A (en) * | 2016-04-22 | 2018-01-03 | Johnson Matthey Plc | STA-18, A new member of the SFW family of molecular sieve zeotypes, methods of preparation and use |
| JP7155108B2 (ja) * | 2016-08-05 | 2022-10-18 | ビーエーエスエフ コーポレーション | 選択的触媒還元物品およびシステム |
| KR101879695B1 (ko) * | 2016-12-02 | 2018-07-18 | 희성촉매 주식회사 | 2가 구리 이온들을 특정비율로 담지한 제올라이트, 이의 제조방법 및 이를 포함하는 촉매조성물 |
| GB201705241D0 (en) * | 2017-03-31 | 2017-05-17 | Johnson Matthey Catalysts (Germany) Gmbh | Catalyst composition |
| WO2020227333A1 (en) * | 2019-05-09 | 2020-11-12 | Basf Corporation | Selective catalytic reduction catalyst comprising copper carbonate |
| KR102465459B1 (ko) | 2020-12-08 | 2022-11-10 | 한국생산기술연구원 | 바나듐 기반의 결정성 scr 촉매의 제조방법 및 이를 이용한 결정성 scr 촉매 |
| CN114345402B (zh) * | 2021-08-30 | 2024-09-17 | 武汉科技大学 | 一种铁基分子筛催化剂的制备方法 |
| CN114950576B (zh) * | 2022-06-20 | 2023-08-22 | 济南大学 | 一种提高金属基小孔分子筛水热稳定性的方法及所得产品和应用 |
| CN117680190A (zh) * | 2022-08-24 | 2024-03-12 | 中国神华能源股份有限公司国华电力分公司 | 一种蜂窝式高温脱硝催化剂及其制备方法 |
| JP7677496B2 (ja) | 2023-05-12 | 2025-05-15 | 東ソー株式会社 | 鉄含有fer型ゼオライト及びその製造方法 |
| DE102024000427A1 (de) * | 2024-02-09 | 2025-08-14 | C&Cs Catalysts And Chemical Specialties Gmbh | Katalysator mit niedriger Aktivierungstemperatur zur Einstellung des temperaturabhängigen Gleichgewichtes von ortho-para Wasserstoffgemischen |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA001894B1 (ru) * | 1997-12-31 | 2001-10-22 | Гранд-Паруасс С.А. | Катализатор на основе ферриерит/железо для каталитического снижения содержания газа закиси азота, способ его получения и его применение |
| WO2007070639A2 (en) * | 2005-12-14 | 2007-06-21 | Basf Catalysts Llc | Zeolite catalyst with improved nox reduction in scr |
| EA014430B1 (ru) * | 2005-05-11 | 2010-12-30 | Уде Гмбх | Способ уменьшения содержания оксидов азота в газах |
| RU2445166C2 (ru) * | 2007-03-26 | 2012-03-20 | ПиКью КОРПОРЕЙШН | Новый микропористый кристаллический материал, включающий молекулярные сита или цеолит, имеющий восьмикольцевую структуру открытых пор, и способы его получения и применения |
| RU2481883C2 (ru) * | 2009-03-30 | 2013-05-20 | Зюд-Хеми Аг | Стойкий к старению катализатор окисления no до no2 в потоках выхлопных газов |
| RU2506999C2 (ru) * | 2009-09-05 | 2014-02-20 | Джонсон Мэтти Каталистс (Джермани) Гмбх | Способ получения scr-активного цеолитного катализатора и scr-активный цеолитный катализатор |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4255349A (en) * | 1978-12-18 | 1981-03-10 | Mobil Oil Corporation | Conversion of synthesis gas with iron-containing catalyst |
| US4961917A (en) * | 1989-04-20 | 1990-10-09 | Engelhard Corporation | Method for reduction of nitrogen oxides with ammonia using promoted zeolite catalysts |
| US5552129A (en) * | 1994-07-07 | 1996-09-03 | Mobil Oil Corporation | Catalytic system for the reduction of nitrogen oxides |
| US5520895A (en) * | 1994-07-07 | 1996-05-28 | Mobil Oil Corporation | Method for the reduction of nitrogen oxides using iron impregnated zeolites |
| JP4803487B2 (ja) * | 2006-02-22 | 2011-10-26 | 株式会社豊田中央研究所 | 窒素酸化物選択還元触媒及びその製造方法 |
| KR101809040B1 (ko) * | 2009-04-17 | 2017-12-14 | 존슨 맛쎄이 퍼블릭 리미티드 컴파니 | 질소 산화물의 환원에 대한 희박/농후 노화에 대해 내구적인 소기공 분자 체 지지된 구리 촉매 |
| JP2011125845A (ja) * | 2009-11-19 | 2011-06-30 | Ibiden Co Ltd | ハニカム構造体の製造方法 |
| BR112015019073A2 (pt) * | 2013-02-18 | 2017-07-18 | Johnson Matthey Plc | métodos para produzir uma composição de captação de nox e para tratamento de um gás de escapamento de um motor de combustão interna, composição de captação de nox, captação de nox, sistema de escapamento para motores de combustão interna, e, catalisador de partida a frio |
| CN106029228A (zh) * | 2014-02-28 | 2016-10-12 | 庄信万丰股份有限公司 | 具有改进的低温性能的scr催化剂,及其制造和使用方法 |
| JP6126141B2 (ja) * | 2014-05-30 | 2017-05-10 | トヨタ自動車株式会社 | 排ガス浄化用触媒の製造方法 |
-
2015
- 2015-02-27 CN CN201580010624.4A patent/CN106029228A/zh active Pending
- 2015-02-27 GB GB1616290.1A patent/GB2543165B/en active Active
- 2015-02-27 RU RU2016138284A patent/RU2702988C2/ru active
- 2015-02-27 CN CN202310190014.3A patent/CN116037220A/zh active Pending
- 2015-02-27 US US14/633,777 patent/US10272419B2/en active Active
- 2015-02-27 JP JP2016554479A patent/JP6653661B2/ja active Active
- 2015-02-27 BR BR112016019834-4A patent/BR112016019834B1/pt active IP Right Grant
- 2015-02-27 WO PCT/GB2015/050569 patent/WO2015128663A1/en not_active Ceased
- 2015-02-27 DE DE112015001052.1T patent/DE112015001052T5/de active Pending
- 2015-02-27 KR KR1020167026803A patent/KR20160129030A/ko not_active Withdrawn
- 2015-02-27 EP EP15708039.1A patent/EP3110550B1/en active Active
-
2019
- 2019-04-24 US US16/392,768 patent/US11000836B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA001894B1 (ru) * | 1997-12-31 | 2001-10-22 | Гранд-Паруасс С.А. | Катализатор на основе ферриерит/железо для каталитического снижения содержания газа закиси азота, способ его получения и его применение |
| EA014430B1 (ru) * | 2005-05-11 | 2010-12-30 | Уде Гмбх | Способ уменьшения содержания оксидов азота в газах |
| WO2007070639A2 (en) * | 2005-12-14 | 2007-06-21 | Basf Catalysts Llc | Zeolite catalyst with improved nox reduction in scr |
| RU2445166C2 (ru) * | 2007-03-26 | 2012-03-20 | ПиКью КОРПОРЕЙШН | Новый микропористый кристаллический материал, включающий молекулярные сита или цеолит, имеющий восьмикольцевую структуру открытых пор, и способы его получения и применения |
| RU2481883C2 (ru) * | 2009-03-30 | 2013-05-20 | Зюд-Хеми Аг | Стойкий к старению катализатор окисления no до no2 в потоках выхлопных газов |
| RU2506999C2 (ru) * | 2009-09-05 | 2014-02-20 | Джонсон Мэтти Каталистс (Джермани) Гмбх | Способ получения scr-активного цеолитного катализатора и scr-активный цеолитный катализатор |
Non-Patent Citations (1)
| Title |
|---|
| Dubkov K.A. et. al. Evolution of iron states and formation of α-sites upon activation of FeZSM-5 zeolites, Journal of catalysis, vol. 207, no. 2, 2002, pp. 341-352. * |
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| GB201616290D0 (en) | 2016-11-09 |
| EP3110550A1 (en) | 2017-01-04 |
| US10272419B2 (en) | 2019-04-30 |
| KR20160129030A (ko) | 2016-11-08 |
| CN116037220A (zh) | 2023-05-02 |
| WO2015128663A1 (en) | 2015-09-03 |
| JP2017510437A (ja) | 2017-04-13 |
| US20190247836A1 (en) | 2019-08-15 |
| US20150246346A1 (en) | 2015-09-03 |
| CN106029228A (zh) | 2016-10-12 |
| BR112016019834B1 (pt) | 2021-09-28 |
| RU2016138284A (ru) | 2018-04-02 |
| RU2016138284A3 (enExample) | 2019-02-18 |
| GB2543165A (en) | 2017-04-12 |
| JP6653661B2 (ja) | 2020-02-26 |
| US11000836B2 (en) | 2021-05-11 |
| GB2543165B (en) | 2020-09-02 |
| BR112016019834A2 (enExample) | 2017-08-15 |
| EP3110550B1 (en) | 2024-07-03 |
| DE112015001052T5 (de) | 2016-12-08 |
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