JP6929370B2 - 希釈選択的触媒還元システムを備える、化石燃料を動力源とするエンジンのための排気ダクト - Google Patents
希釈選択的触媒還元システムを備える、化石燃料を動力源とするエンジンのための排気ダクト Download PDFInfo
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- 238000010531 catalytic reduction reaction Methods 0.000 title claims description 15
- 238000010790 dilution Methods 0.000 title description 9
- 239000012895 dilution Substances 0.000 title description 9
- 239000007789 gas Substances 0.000 claims description 100
- 238000002156 mixing Methods 0.000 claims description 54
- 239000012809 cooling fluid Substances 0.000 claims description 50
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 39
- 239000003638 chemical reducing agent Substances 0.000 claims description 38
- 239000003054 catalyst Substances 0.000 claims description 23
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002803 fossil fuel Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 23
- 239000003546 flue gas Substances 0.000 description 19
- 238000002485 combustion reaction Methods 0.000 description 14
- 238000009826 distribution Methods 0.000 description 11
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003426 co-catalyst Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000112 cooling gas Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000036540 impulse transmission Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
- F01D25/305—Exhaust heads, chambers, or the like with fluid, e.g. liquid injection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9431—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
- B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
- B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/70—Pre-treatment of the materials to be mixed
- B01F23/702—Cooling materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3133—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit characterised by the specific design of the injector
- B01F25/31331—Perforated, multi-opening, with a plurality of holes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
- B01F25/3143—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit characterised by the specific design of the injector
- B01F25/31434—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit characterised by the specific design of the injector being a bundle of similar tubes, each of them having feedings on the circumferential wall, e.g. as mixer for a reactor
-
- 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
- F01N3/18—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 characterised by methods of operation; Control
- F01N3/20—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 characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N3/24—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 characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
- F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/16—Cooling of plants characterised by cooling medium
- F02C7/18—Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/11—Adding substances to exhaust gases the substance or part of the dosing system being cooled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/232—Heat transfer, e.g. cooling characterized by the cooling medium
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- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
− 高温煙道ガスと冷却ガスとの不十分な混合。
− 異なるガスタービン負荷での異なるNOx濃度分布。還元剤、アンモニア及び/又は尿素の噴射は、NOx濃度分布と対応させられる必要があり、これは、希釈SCRシステムを備えたガスタービンの排気ダクトではほとんど不可能である。
− 単純サイクルガスタービンの部分負荷動作でのガスタービン排気速度分布が、全負荷のガスタービン排気速度分布と非常に異なる。これは、触媒体での非常に不均一な速度分布につながる可能性がある。これは、触媒体にわたって変化する滞留時間をもたらし、NOx及び還元剤の不十分な転換(NH3スリップと称される、転換されていないアンモニア及び/又は尿素が触媒体を出ていくこと)につながる可能性がある。
の問題のいくつかが生じる可能性がある。
Claims (8)
- 排ガス通路(27,61)と、冷却流体通路(28,62)と、冷却流体(42)を高温排ガス(41)と混合させるための混合デバイス(31)と、窒素酸化物(NOx)を除去するために前記排ガス通路内に配置された少なくとも1つの選択的触媒還元触媒(39)と、還元剤(36)を供給するための少なくとも第1の手段(34)と、を備える、化石燃料を動力源とするエンジン(26)のための排気ダクト(15,24,60)であって、
前記混合デバイス(31)が、第1の壁部(51)及び反対側の第2の壁部(52)を有する混合チャンバ(50)を備え、前記第1の壁部及び前記第2の壁部が、前記排ガス通路内で前記選択的触媒還元触媒(39)の上流に配置され、前記排ガス通路の断面積(64)にわたって延在し、前記第1の壁部及び前記第2の壁部が、貫通孔(54)によって有孔とされ、前記第1の壁部の貫通孔が、前記混合チャンバ(50)を通って延在するパイプ(55)によって、前記第2の壁部(52)の貫通孔(54)とペアで接続され、前記パイプが、前記混合チャンバ内への少なくとも1つの孔(56)によって有孔とされ、前記冷却流体通路(28,62)が、前記混合チャンバ内に終端しており、
前記第1の壁部を貫通する前記貫通孔(54)の開口部(67)及び前記第2の壁部を貫通する前記貫通孔(54)の開口部(67)が、前記第1の壁部及び前記第2の壁部の表面(68)上で、両壁部の実質的に全領域にわたってかつ均一に分配されている、ことを特徴とする排気ダクト(15,24,60)。 - 還元剤(36)を供給するための前記第1の手段(34)が、還元剤が前記冷却流体通路(28,62)内に供給されるように構成されていることを特徴とする請求項1に記載の排気ダクト(15,24,60)。
- 還元剤を供給するための前記第1の手段(34)が、前記還元剤が前記冷却流体通路(28,62)の冷却流体ファン(32)の流体吸入部(33)で噴射されるように構成されていることを特徴とする請求項2に記載の排気ダクト(15,24,60)。
- 還元剤を供給するための前記第1の手段(34)が、尿素成分及び/又はアンモニア成分を含む還元剤(36)を供給するように構成されていることを特徴とする請求項2又は3に記載の排気ダクト(15,24,60)。
- 還元剤を供給するための前記第1の手段(34)が、液体又は蒸気である前記還元剤を前記冷却流体(58)内に噴霧するように構成された1つ以上の噴射ノズル(35)を備えていることを特徴とする請求項2から4のいずれか一項に記載の排気ダクト(15,24,60)。
- 前記混合チャンバ(50)の前記パイプ(55)が、前記パイプを通って流れる前記高温排ガスの乱流を増大させるための少なくとも1つのタービュレータ(57)を内側に備えていることを特徴とする請求項1から5のいずれか一項に記載の排気ダクト(15,24,60)。
- 前記第1の壁部(51)及び前記第2の壁部(52)における前記貫通孔(54)の断面積(59)の和が、前記排ガス通路の流入部(66)と前記排ガス通路(27,61)の下流出口(69)との間の圧力降下を25mbar以下に維持するように構成されていることを特徴とする請求項1から6のいずれか一項に記載の排気ダクト(15,24,60)。
- ガスタービン(1)と、排気ダクト(15,60)と、を備える発電所(22)であって、前記排気ダクトが、請求項1から7のいずれか一項に記載の排気ダクトであることを特徴とする発電所。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17153522.2A EP3354867A1 (en) | 2017-01-27 | 2017-01-27 | Exhaust duct for a fossil fuel powered engine comprising a dilution selective catalytic reduction system |
EP17153522.2 | 2017-01-27 | ||
PCT/EP2018/050670 WO2018137936A1 (en) | 2017-01-27 | 2018-01-11 | Exhaust duct for a fossil fuel powered engine comprising a dilution selective catalytic reduction system |
Publications (2)
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JP2020507031A JP2020507031A (ja) | 2020-03-05 |
JP6929370B2 true JP6929370B2 (ja) | 2021-09-01 |
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JP2019540561A Active JP6929370B2 (ja) | 2017-01-27 | 2018-01-11 | 希釈選択的触媒還元システムを備える、化石燃料を動力源とするエンジンのための排気ダクト |
Country Status (6)
Country | Link |
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US (1) | US11725543B2 (ja) |
EP (2) | EP3354867A1 (ja) |
JP (1) | JP6929370B2 (ja) |
KR (1) | KR102319085B1 (ja) |
CN (1) | CN110226022B (ja) |
WO (1) | WO2018137936A1 (ja) |
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US11598225B2 (en) | 2020-06-02 | 2023-03-07 | General Electric Company | System and method for reducing the visibility of exhaust emissions in a gas turbine system |
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JP2011032711A (ja) | 2009-07-31 | 2011-02-17 | Carecom Co Ltd | 住宅システム |
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US10005016B2 (en) * | 2015-12-28 | 2018-06-26 | General Electric Company | Hydrophobic filtration of tempering air |
-
2017
- 2017-01-27 EP EP17153522.2A patent/EP3354867A1/en not_active Withdrawn
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2018
- 2018-01-11 CN CN201880008724.7A patent/CN110226022B/zh active Active
- 2018-01-11 US US16/470,223 patent/US11725543B2/en active Active
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- 2018-01-11 WO PCT/EP2018/050670 patent/WO2018137936A1/en unknown
- 2018-01-11 KR KR1020197025066A patent/KR102319085B1/ko active IP Right Grant
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EP3529466A1 (en) | 2019-08-28 |
EP3354867A1 (en) | 2018-08-01 |
CN110226022B (zh) | 2022-08-02 |
KR20190108155A (ko) | 2019-09-23 |
KR102319085B1 (ko) | 2021-11-01 |
US11725543B2 (en) | 2023-08-15 |
WO2018137936A1 (en) | 2018-08-02 |
CN110226022A (zh) | 2019-09-10 |
JP2020507031A (ja) | 2020-03-05 |
US20190345845A1 (en) | 2019-11-14 |
EP3529466B1 (en) | 2022-06-29 |
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