RU2018101714A - Система выпуска отработавших газов без дизельного катализатора окисления (doc), имеющая катализатор проскока аммиака (asc), действующий, как doc, в системе с катализатором селективного каталитического восстановления (scr) перед asc - Google Patents
Система выпуска отработавших газов без дизельного катализатора окисления (doc), имеющая катализатор проскока аммиака (asc), действующий, как doc, в системе с катализатором селективного каталитического восстановления (scr) перед asc Download PDFInfo
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- RU2018101714A RU2018101714A RU2018101714A RU2018101714A RU2018101714A RU 2018101714 A RU2018101714 A RU 2018101714A RU 2018101714 A RU2018101714 A RU 2018101714A RU 2018101714 A RU2018101714 A RU 2018101714A RU 2018101714 A RU2018101714 A RU 2018101714A
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- Russia
- Prior art keywords
- catalyst
- product according
- catalyst product
- molecular sieve
- exhaust gas
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims 87
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims 18
- 229910021529 ammonia Inorganic materials 0.000 title claims 9
- 230000003647 oxidation Effects 0.000 title claims 9
- 238000007254 oxidation reaction Methods 0.000 title claims 9
- 239000002808 molecular sieve Substances 0.000 claims 31
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims 31
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 21
- 239000000203 mixture Substances 0.000 claims 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 13
- 239000000758 substrate Substances 0.000 claims 13
- 239000011248 coating agent Substances 0.000 claims 11
- 238000000576 coating method Methods 0.000 claims 11
- 229910052697 platinum Inorganic materials 0.000 claims 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 8
- 239000011148 porous material Substances 0.000 claims 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 7
- 238000000034 method Methods 0.000 claims 7
- 230000015572 biosynthetic process Effects 0.000 claims 6
- 239000010953 base metal Substances 0.000 claims 5
- 238000009825 accumulation Methods 0.000 claims 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims 4
- 229930195733 hydrocarbon Natural products 0.000 claims 4
- 150000002430 hydrocarbons Chemical class 0.000 claims 4
- 229910052751 metal Inorganic materials 0.000 claims 4
- 239000002184 metal Substances 0.000 claims 4
- 229910052763 palladium Inorganic materials 0.000 claims 4
- 239000000377 silicon dioxide Substances 0.000 claims 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 3
- 229910000323 aluminium silicate Inorganic materials 0.000 claims 3
- 239000010949 copper Substances 0.000 claims 3
- GHOKWGTUZJEAQD-ZETCQYMHSA-N (D)-(+)-Pantothenic acid Chemical compound OCC(C)(C)[C@@H](O)C(=O)NCCC(O)=O GHOKWGTUZJEAQD-ZETCQYMHSA-N 0.000 claims 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 2
- 150000004645 aluminates Chemical class 0.000 claims 2
- 239000011651 chromium Substances 0.000 claims 2
- 229910052802 copper Inorganic materials 0.000 claims 2
- 229910052878 cordierite Inorganic materials 0.000 claims 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical group [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims 2
- 239000011572 manganese Substances 0.000 claims 2
- 229910044991 metal oxide Inorganic materials 0.000 claims 2
- 150000004706 metal oxides Chemical class 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 2
- 229910052684 Cerium Inorganic materials 0.000 claims 1
- 229910004625 Ce—Zr Inorganic materials 0.000 claims 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- 229910021536 Zeolite Inorganic materials 0.000 claims 1
- 239000012190 activator Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 claims 1
- 238000010531 catalytic reduction reaction Methods 0.000 claims 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000010941 cobalt Substances 0.000 claims 1
- 229910017052 cobalt Inorganic materials 0.000 claims 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 229910052750 molybdenum Inorganic materials 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 229910000510 noble metal Inorganic materials 0.000 claims 1
- -1 platinum group metals Chemical class 0.000 claims 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 claims 1
- 239000004071 soot Substances 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 239000010937 tungsten Substances 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- 239000010457 zeolite Substances 0.000 claims 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
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- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
- B01J29/76—Iron group metals or copper
- B01J29/763—CHA-type, e.g. Chabazite, LZ-218
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- B01D53/34—Chemical or biological purification of waste gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Claims (47)
1. Катализаторное изделие, содержащее подложку, содержащую входной конец и выход, первую зону, содержащую первый катализатор селективного каталитического восстановления (SCR), и вторую зону, содержащую катализатор проскока аммиака (ASC), где катализатор проскока аммиака содержит второй катализатор SCR и катализатор окисления, и ASC имеет функциональностьфункциональность дизельного катализатора окисления (DOC), где первая зона размещена на входной стороне подложки, а вторая зона размещена на выходной стороне подложки.
2. Катализаторное изделие по п.1, где первая зона и вторая зона размещены на одной и той же подложке, и первая зона размещена на входной стороне подложки, а вторая зона размещена на выходной стороне подложки.
3. Катализаторное изделие по п.1, дополнительно содержащее вторую подложку, где первая зона размещена на первой подложке, а вторая зона размещена на второй подложке, и первая подложка размещена выше по потоку относительно второй подложки.
4. Катализаторное изделие по п.3, где изделие содержит первый участок и второй участок, где первая зона размещена на первом участке, и вторая зона размещена на втором участке, и первый участок размещен выше по потоку относительно второго участка.
5. Катализаторное изделие по п.1, где ASC является двухслойным, причем нижний слой содержит катализатор окисления, а верхний, покрывающий слой содержит второй катализатор SCR.
6. Катализаторное изделие по п.5, где верхний слой дополнительно содержит палладий.
7. Катализаторное изделие по любому из предшествующих пунктов, где вторая зона содержит смесь катализатора окисления и второго катализатора SCR.
8. Катализаторное изделие по п.7, где смесь дополнительно содержит Pd, Nb-Ce-Zr или Nb на MnO2.
9. Катализаторное изделие по любому из пп.6-8, где катализатор окисления содержит платину на носителе, предпочтительно носителе с низким накоплением аммиака.
10. Катализаторное изделие по п.9, где носитель с низким накоплением аммиака представляет собой кремнеземистый носитель.
11. Катализаторное изделие по п.10, где кремнеземистый носитель содержит кремнезем или цеолит с отношением кремнезема к глинозему, имеющим по меньшей мере одно из следующих значений: (a) по меньшей мере 100, (b) по меньшей мере 200, (c) по меньшей мере 250, (d) по меньшей мере 300, (e) по меньшей мере 400, (f) по меньшей мере 500, (g) по меньшей мере 750 и (h) по меньшей мере 1000.
12. Катализаторное изделие по п.10 или 11, в котором кремнеземистый носитель содержит BEA, CDO, CON, FAU, MEL, MFI или MWW.
13. Катализаторное изделие по любому из пп. 9-12, где отношение количества второго катализатора SCR к количеству платины на носителе, предпочтительно носителе с низким накоплением аммиака, находится в по меньшей мере одном диапазоне из: (a) от 0:1 до 300:1 (b) от 3:1 до 300:1, (c) от 7:1 до 100:1 и (d) от 10:1 до 50:1, включая каждую из конечных точек в соотношениях, в расчете на вес этих компонентов.
14. Катализаторное изделие по любому из пп. 9-13, где платина присутствует в по меньшей мере одном количестве из следующих: (a) 0,01-0,3 весовых %, (b) 0,03-0,2 весовых %, (c) 0,05-0,17 весовых % и (d) 0,07-0,15 весовых %, включительно, относительно суммы вес носителя платины + вес платины + вес первого катализатора SCR в смеси.
15. Катализаторное изделие по любому из предшествующих пунктов, где катализатор окисления содержит металл платиновой группы.
16. Катализаторное изделие по любому из предшествующих пунктов, где катализатор окисления содержит платину или палладий или их смеси.
17. Катализаторное изделие по п.16, где Pt присутствует в количестве от около 0,1 г/фут3 до около 20 г/фут3 в зоне ASC.
18. Катализаторное изделие по п.16 или 17, где Pd присутствует в количестве от около 0,1 г/фут3 до около 20 г/фут3 в зоне ASC.
19. Катализаторное изделие по любому из пп. 16-18, где Pt и Pd присутствуют в соотношении от около 1:0,01 до около 1:10 по весу.
20. Катализаторное изделие по любому из предшествующих пунктов, где первый катализатор SCR представляет собой неблагородный металл, оксид неблагородного металла, молекулярное сито, металлзамещенное молекулярное сито или их смесь.
21. Катализаторное изделие по п.20, где неблагородный металл выбирают из группы, состоящей из ванадия (V), молибдена (Mo) и вольфрама (W), хрома (Cr), церия (Ce), марганца (Mn), железа (Fe), кобальта (Co), никеля (Ni), меди (Cu) и циркония (Zr) и их смесей.
22. Катализаторное изделие по п.20 или 21, дополнительно содержащее по меньшей мере один активатор неблагородного металла.
23. Катализаторное изделие по любому из пп. 20-22, где молекулярное сито или металлзамещенное молекулярное сито представляет собой сито с малыми порами, средними порами, большими порами или их смесь.
24. Катализаторное изделие по любому из пп. 20-23, где первый катализатор SCR содержит молекулярное сито с малыми порами, выбранное из группы, состоящей из алюмосиликатного молекулярного сита, металлзамещенного алюмосиликатного молекулярного сита, алюмофосфатного (AIPO) молекулярного сита, металлзамещенного алюмофосфатного (MeAIPO) молекулярного сита, силико-алюмофосфатного (SAPO) молекулярного сита и металлзамещенного силико-алюмофосфатного (MeAPSO) молекулярного сита и их смесей.
25. Катализаторное изделие по любому из пп. 20-24, где первый катализатор SCR содержит молекулярное сито с малыми порами, выбранное из группы типов каркасной структуры, состоящей из ACO, AEI, AEN, AFN, AFT, AFX, ANA, APC, APD, ATT, CDO, CHA, DDR, DFT, EAB, EDI, EPI, ERI, GIS, GOO, IHW, ITE, ITW, LEV, KFI, MER, MON, NSI, OWE, PAU, PHI, RHO, RTH, SAT, SAV, SIV, THO, TSC, UEI, UFI, VNI, YUG и ZON и их смеси и/или сростков.
26. Катализаторное изделие по любому из пп. 20-25, где первый катализатор SCR содержит молекулярное сито с малыми порами, выбранное из группы типов каркасной структуры, состоящей из CHA, LEV, AEI, AFX, ERI, SFW, KFI, DDR и ITE.
27. Катализаторное изделие по любому из пп. 20-24, где первый катализатор SCR содержит молекулярное сито со средними порами, выбранное из группы типов каркасной структуры, состоящей из AEL, AFO, AHT, BOF, BOZ, CGF, CGS, CHI, DAC, EUO, FER, HEU, IMF, ITH, ITR, JRY, JSR, LAU, LOV, MEL, MFI, MFS, MRE, MTT, MVY, MWW, NAB, NAT, NES, OBW, PAR, PCR, PON, PUN, PRO, RSN, SFF, SFG, STF, STI, STT, STW, SVR, SZR, TER, TON, TUN, UOS, VSV, WEI и WEN и/или их смеси или сростков.
28. Катализаторное изделие по любому из пп.20-24, где первый катализатор SCR содержит молекулярное сито с большими порами, выбранное из группы типов каркасной структуры, состоящей из AFI, AFR, AFS, AFY, ASV, ATO, ATS, BEA, BEC, BOG, BPH, BSV, CAN, CON, CZP, DFO, EMT, EON, EZT, FAU, GME, GON, IFR, ISV, ITG, IWR, IWS, IWV, IWW, JSR, LTF, LTL, MAZ, MEI, MOR, MOZ, MSE, MTW, NPO, OFF, OKO, OSI, RON, RWY, SAF, SAO, SBE, SBS, SBT, SEW, SFE, SFO, SFS, SFV, SOF, SOS, STO, SSF, SSY, USI, UWY и VET и их смеси и/или сростков.
29. Катализаторное изделие по любому из предшествующих пунктов, где второй катализатор SCR представляет собой катализатор Cu-SCR, катализатор Fe-SCR, неблагородный металл, оксид неблагородного металла или смешанный оксид или ванадиевый катализатор.
30. Катализаторное изделие по п.29, где катализатор Cu-SCR содержит медь и молекулярное сито, катализатор Fe-SCR содержит железо и молекулярное сито.
31. Катализаторное изделие по п.30, где молекулярное сито представляет собой алюмосиликат, алюмофосфат (AlPO), силико-алюмофосфат (SAPO) или их смесь.
32. Катализаторное изделие по п.30 или 31, где молекулярное сито выбирается из группы типов каркасной структуры, состоящей из ACO, AEI, AEN, AFN, AFT, AFX, ANA, APC, APD, ATT, CDO, CHA, DDR, DFT, EAB, EDI, EPI, ERI, GIS, GOO, IHW, ITE, ITW, LEV, KFI, MER, MON, NSI, OWE, PAU, PHI, RHO, RTH, SAT, SAV, SIV, THO, TSC, UEI, UFI, VNI, YUG и ZON и их смеси и/или срастания.
33. Катализаторное изделие по любому из пп. 30-32, где молекулярное сито выбирается из группы типов каркасной структуры, состоящей из AEI, AFX, CHA, DDR, ERI, ITE, KFI, LEV и SFW.
34. Катализаторное изделие по любому из предшествующих пунктов, где подложка представляет собой кордиерит, высокопористый кордиерит, металлическую подложку, экструдированный SCR, фильтр пристенного течения, фильтр или SCR на фильтре (SCRF).
35. Катализаторное изделие по любому из предшествующих пунктов, где катализаторное изделие обеспечивает улучшение в выходе N2 из аммиака при температуре от около 250°С до около 350°С по сравнению с катализатором, содержащим сравнимый состав, в котором первый катализатор SCR присутствует в качестве первого покрытия, и платина на носителе с низким накоплением аммиака присутствует во втором покрытии, и газ, содержащий NH3, проходит через первое покрытие перед проходом через второе покрытие.
36. Катализаторное изделие по любому из предшествующих пунктов, где катализаторное изделие обеспечивает по меньшей мере один эффект из: (a) улучшения выхода N2 из аммиака при температуре от около 350°С до около 450°С и (b) понижения образования NOx при температуре от около 350°С до около 450°С по сравнению с катализатором, содержащим сравнимый состав, в котором первый катализатор SCR присутствует в качестве первого покрытия, и нанесенная платина присутствует во втором покрытии, и газ, содержащий NH3, проходит через первое покрытие перед проходом через второе покрытие.
37. Катализаторное изделие по любому из предшествующих пунктов, где катализаторное изделие обеспечивает пониженное образование N2O из NH3 по сравнению с катализатором, содержащим сравнимый состав, в котором первый катализатор SCR присутствует в качестве первого покрытия, и нанесенная платина присутствует во втором покрытии, и газ, содержащий NH3, проходит через первое покрытие перед проходом через второе покрытие.
38. Катализаторное изделие по любому из предшествующих пунктов, где катализаторное изделие создает экзотермический режим.
39. Система выпуска отработавших газов, содержащая катализаторное изделие по любому из предшествующих пунктов и первое средство для образования NH3 в отработавшем газе или введения NH3 в отработавший газ, где первое средство для образования NH3 в отработавшем газе или введения NH3 в отработавший газ размещено перед катализаторным изделием.
40. Система выпуска отработавших газов по п.38 или 39, дополнительно содержащая катализируемый фильтр сажи (CSF) или SCRF, где CSF или SCRF расположены ниже по потоку от катализаторного изделия, и, когда система содержит SCRF, между катализаторным изделием и SCRF размещено второе средство для образования NH3 в отработавшем газе или введения NH3 в отработавший газ.
41. Система выпуска отработавших газов по п.40, в которой CSF имеет высокую нагрузку металлами платиновой группы (PGM) в передней части CSF.
42. Двигатель, содержащий систему выпуска отработавших газов, содержащую катализаторное изделие по п.1 и средство для образования NH3 в отработавшем газе или введения NH3 в отработавший газ.
43. Способ регулирования выбросов углеводородов в отработавшем газе, причем способ включает осуществление контакта отработавшего газа, содержащего углеводороды, с катализаторным изделием по любому из пп. 1-38.
44. Способ формирования экзотермического режима при каталитической обработке выбросов углеводородов в отработавшем газе, включающий осуществление контакта отработавшего газа, содержащего углеводороды, с катализаторным изделием по любому из пп. 1-38.
45. Способ регулирования выделения NOx в отработавшем газе, включающий осуществление контакта отработавшего газа, содержащего NOx или NH3, с катализаторным изделием по любому из пп. 1-38.
46. Способ регулирования выделений N2O в отработавшем газе, причем способ включает осуществление контакта отработавшего газа, содержащего NOx или NH3, с катализаторным изделием по любому из пп. 1-38.
47. Способ по п.46, где катализаторное изделие по любому из пп. 1-38 не является частью системы выпуска отработавших газов, содержащей DOC.
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US62/181,278 | 2015-06-18 | ||
PCT/GB2016/051813 WO2016203254A1 (en) | 2015-06-18 | 2016-06-17 | Exhaust system without a doc having an asc acting as a doc in a system with an scr catalyst before the asc |
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-
2016
- 2016-06-16 US US15/184,206 patent/US9937489B2/en active Active
- 2016-06-17 KR KR1020187001487A patent/KR102525515B1/ko active IP Right Grant
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- 2016-06-17 BR BR112017026961-9A patent/BR112017026961B1/pt active IP Right Grant
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JP2021062368A (ja) | 2021-04-22 |
KR102525515B1 (ko) | 2023-04-26 |
BR112017026961A2 (pt) | 2018-08-21 |
CN113181769A (zh) | 2021-07-30 |
GB201610558D0 (en) | 2016-08-03 |
JP2018527161A (ja) | 2018-09-20 |
JP6853195B2 (ja) | 2021-03-31 |
US20180221860A1 (en) | 2018-08-09 |
US20160367974A1 (en) | 2016-12-22 |
RU2018101714A3 (ru) | 2020-01-22 |
GB2544837A (en) | 2017-05-31 |
WO2016203254A1 (en) | 2016-12-22 |
US9937489B2 (en) | 2018-04-10 |
BR112017026961B1 (pt) | 2022-12-27 |
RU2734384C2 (ru) | 2020-10-15 |
CN107847864A (zh) | 2018-03-27 |
EP3310459A1 (en) | 2018-04-25 |
DE102016111147A1 (de) | 2016-12-22 |
EP3310459B1 (en) | 2021-08-04 |
US10589261B2 (en) | 2020-03-17 |
JP7086162B2 (ja) | 2022-06-17 |
CN107847864B (zh) | 2021-05-25 |
CN113181769B (zh) | 2023-02-21 |
KR20180034396A (ko) | 2018-04-04 |
GB2544837B (en) | 2020-01-22 |
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