JP5643491B2 - 空気液化分離方法及び装置 - Google Patents
空気液化分離方法及び装置 Download PDFInfo
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- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
- F25J3/04024—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of purified feed air, so-called boosted air
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- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04163—Hot end purification of the feed air
- F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
- F25J3/04175—Hot end purification of the feed air by adsorption of the impurities at a pressure of substantially more than the highest pressure column
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- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
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- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04333—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/04339—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of air
- F25J3/04345—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of air and comprising a gas work expansion loop
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- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
- F25J3/04393—Details relating to the work expansion, e.g. process parameter etc. using multiple or multistage gas work expansion
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- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
- F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
- F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
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- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/40—Processes or apparatus involving steps for recycling of process streams the recycled stream being air
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Description
Claims (8)
- 圧縮、精製、冷却した原料空気を中圧塔及び低圧塔にて低温蒸留することにより少なくとも液体酸素を製品として採取する空気液化分離方法において、原料空気の全量を前記中圧塔の運転圧力より高い第1設定圧力に昇圧して昇圧原料空気とする原料空気圧縮工程と、該昇圧原料空気から不純物を吸着除去して昇圧精製空気とする吸着精製工程と、該昇圧精製空気と後述する昇圧帰還空気とを合流させて循環空気とする循環空気合流工程と、該循環空気を2分流した第1分流空気を第1設定温度に冷却して中圧塔導入空気とし、第2分流空気を前記第1設定温度より高い第2設定温度に冷却して膨張用空気とする冷却工程と、該膨張用空気を前記第1設定圧力より低い第2設定圧力に断熱膨張させることにより低温空気とする膨張工程と、該低温空気の一部を前記中圧塔に導入する工程と、該低温空気の残部を温度回復させて帰還空気とする昇温工程と、該帰還空気を昇圧して前記昇圧帰還空気とする循環圧縮工程と、前記中圧塔導入空気を前記中圧塔の運転圧力に対応する圧力に減圧し前記中圧塔に導入する工程とを備えていることを特徴とする空気液化分離方法。
- 圧縮、精製、冷却した原料空気を中圧塔及び低圧塔にて低温蒸留することにより少なくとも液体酸素を製品として採取する空気液化分離方法において、原料空気の全量を前記中圧塔の運転圧力より高い第1設定圧力に昇圧して昇圧原料空気とする原料空気圧縮工程と、該昇圧原料空気から不純物を吸着除去して昇圧精製空気とする吸着精製工程と、該昇圧精製空気と後述する昇圧帰還空気とを合流させて循環空気とする循環空気合流工程と、該循環空気を3分流した第1分流空気を第1設定温度に冷却して中圧塔導入空気とし、第2分流空気を前記第1設定温度より高い第2設定温度に冷却して冷膨張用空気とし、さらに、第3分流空気を前記第2設定温度より高い第3設定温度に冷却して温膨張用空気とする冷却工程と、前記冷膨張用空気を前記第1設定圧力より低い第2設定圧力に断熱膨張させることにより第1低温空気とする第1膨張工程と、前記温膨張用空気を前記第2設定圧力に断熱膨張させることにより前記第1設定温度より高い温度の第2低温空気とする第2膨張工程と、該第1低温空気の一部を前記中圧塔に導入する工程と、該第1低温空気の残部と前記第2低温空気とを温度回復させて帰還空気とする昇温工程と、該帰還空気を昇圧して前記昇圧帰還空気とする循環圧縮工程と、前記中圧塔導入空気を前記中圧塔の運転圧力に対応する圧力に減圧し前記中圧塔に導入する工程とを備えていることを特徴とする空気液化分離方法。
- 前記循環空気を、前記第1設定圧力より高い圧力に昇圧する循環空気昇圧工程を備えていることを特徴とする請求項1又は2記載の空気液化分離方法。
- 圧縮、精製、冷却した原料空気を中圧塔及び低圧塔にて低温蒸留することにより少なくとも液体酸素を製品として採取する空気液化分離装置において、原料空気の全量を前記中圧塔の運転圧力より高い第1設定圧力に昇圧して昇圧原料空気とする原料空気圧縮機と、該昇圧原料空気から不純物を吸着除去して昇圧精製空気とする吸着装置と、該昇圧精製空気と後述する昇圧帰還空気とを合流させて循環空気とする循環空気合流管路と、該循環空気を2分流した第1分流空気を第1設定温度に冷却して中圧塔導入空気とし、第2分流空気を前記第1設定温度より高い第2設定温度に冷却して膨張用空気とする主熱交換器と、該膨張用空気を前記第1設定圧力より低い第2設定圧力に断熱膨張させて低温空気とする膨張タービンと、該低温空気の一部を前記中圧塔に導入する配管と、該低温空気の残部を前記主熱交換器で温度回復させた帰還空気を昇圧して前記昇圧帰還空気とする循環圧縮機と、前記中圧塔導入空気を弁によって前記中圧塔の運転圧力に対応する圧力に減圧し前記中圧塔に導入する配管とを備えていることを特徴とする空気液化分離装置。
- 圧縮、精製、冷却した原料空気を中圧塔及び低圧塔にて低温蒸留することにより少なくとも液体酸素を製品として採取する空気液化分離装置において、原料空気の全量を前記中圧塔の運転圧力より高い第1設定圧力に昇圧して昇圧原料空気とする原料空気圧縮機と、該昇圧原料空気から不純物を吸着除去して昇圧精製空気とする吸着装置と、該昇圧精製空気と後述する昇圧帰還空気とを合流させて循環空気とする循環空気合流管路と、該循環空気を3分流した第1分流空気を第1設定温度に冷却して中圧塔導入空気とし、第2分流空気を前記第1設定温度より高い第2設定温度に冷却して冷膨張用空気とし、さらに、第3分流空気を前記第2設定温度より高い第3設定温度に冷却して温膨張用空気とする主熱交換器と、前記冷膨張用空気を前記第1設定圧力より低い第2設定圧力に断熱膨張させて第1低温空気とする冷膨張タービンと、前記温膨張用空気を前記第2設定圧力に断熱膨張させて第2低温空気とする温膨張タービンと、前記第1低温空気の一部を前記中圧塔に導入する配管と、該第1低温空気の残部と前記第2低温空気とを前記主熱交換器で温度回復させた帰還空気を昇圧して前記昇圧帰還空気とする循環圧縮機と、前記中圧塔導入空気を弁によって前記中圧塔の運転圧力に対応する圧力に減圧し前記中圧塔に導入する配管とを備えていることを特徴とする空気液化分離装置。
- 前記循環空気を、前記第1設定圧力より高い圧力に昇圧する循環空気圧縮機を備えていることを特徴とする請求項4又は5記載の空気液化分離装置。
- 前記循環空気昇圧機は、前記膨張タービンに設けられた膨張タービン制動ブロワであることを特徴とする請求項6記載の空気液化分離装置。
- 前記膨張タービンの制動を、ブロワ、発電機、油圧ポンプのいずれかで行うことを特徴とする請求項4乃至6いずれか1項記載の空気液化分離装置。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009173323A JP5643491B2 (ja) | 2009-07-24 | 2009-07-24 | 空気液化分離方法及び装置 |
| CN201080032477.8A CN102472575B (zh) | 2009-07-24 | 2010-07-20 | 空气液化分离方法及装置 |
| PCT/JP2010/062158 WO2011010630A1 (ja) | 2009-07-24 | 2010-07-20 | 空気液化分離方法及び装置 |
| US13/386,466 US20120131951A1 (en) | 2009-07-24 | 2010-07-20 | Air liquefaction separation method and apparatus |
| KR1020117028238A KR20120040685A (ko) | 2009-07-24 | 2010-07-20 | 공기 액화 분리 방법 및 장치 |
| TW099124121A TWI525298B (zh) | 2009-07-24 | 2010-07-22 | Air liquefaction separation method and device |
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| JP2009173323A JP5643491B2 (ja) | 2009-07-24 | 2009-07-24 | 空気液化分離方法及び装置 |
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| JP2011027318A JP2011027318A (ja) | 2011-02-10 |
| JP5643491B2 true JP5643491B2 (ja) | 2014-12-17 |
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| US (1) | US20120131951A1 (ja) |
| JP (1) | JP5643491B2 (ja) |
| KR (1) | KR20120040685A (ja) |
| CN (1) | CN102472575B (ja) |
| TW (1) | TWI525298B (ja) |
| WO (1) | WO2011010630A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9518778B2 (en) * | 2012-12-26 | 2016-12-13 | Praxair Technology, Inc. | Air separation method and apparatus |
| US20150033792A1 (en) * | 2013-07-31 | 2015-02-05 | General Electric Company | System and integrated process for liquid natural gas production |
| US10337792B2 (en) | 2014-05-01 | 2019-07-02 | Praxair Technology, Inc. | System and method for production of argon by cryogenic rectification of air |
| US9291389B2 (en) * | 2014-05-01 | 2016-03-22 | Praxair Technology, Inc. | System and method for production of argon by cryogenic rectification of air |
| WO2015187117A1 (en) | 2014-06-02 | 2015-12-10 | Praxair Technology, Inc. | Air separation system and method |
| US9731241B2 (en) * | 2014-06-12 | 2017-08-15 | Air Products And Chemicals, Inc. | Radial flow adsorber ‘U’ configuration |
| US10082333B2 (en) | 2014-07-02 | 2018-09-25 | Praxair Technology, Inc. | Argon condensation system and method |
| US10295252B2 (en) * | 2015-10-27 | 2019-05-21 | Praxair Technology, Inc. | System and method for providing refrigeration to a cryogenic separation unit |
| PL3196574T3 (pl) * | 2016-01-21 | 2021-10-18 | Linde Gmbh | Sposób i urządzenie do wytwarzania gazowego azotu pod ciśnieniem przez kriogeniczną separację powietrza |
| US10302356B2 (en) * | 2016-06-30 | 2019-05-28 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for the production of air gases by the cryogenic separation of air |
| US10267561B2 (en) * | 2016-06-30 | 2019-04-23 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Apparatus for the production of air gases by the cryogenic separation of air |
| CN109642771B (zh) * | 2016-06-30 | 2021-07-23 | 乔治洛德方法研究和开发液化空气有限公司 | 操作空气分离装置的方法和设备 |
| US10260802B2 (en) * | 2016-06-30 | 2019-04-16 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Apparatus for operating an air separation plant |
| SG11201811684PA (en) * | 2016-06-30 | 2019-01-30 | Air Liquide | Method for the production of air gases by the cryogenic separation of air |
| CN110090514A (zh) * | 2018-01-29 | 2019-08-06 | 株式会社田村制作所 | 气体净化装置、气体净化方法以及输送加热装置 |
| FR3090831B1 (fr) * | 2018-12-21 | 2022-06-03 | L´Air Liquide Sa Pour L’Etude Et L’Exploitation Des Procedes Georges Claude | Appareil et procédé de séparation d’air par distillation cryogénique |
| CN109855389B (zh) * | 2019-01-04 | 2020-11-13 | 曹建喜 | 一种利用lng冷能和单塔精馏工艺生产液氧液氮的方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1520103A (en) * | 1977-03-19 | 1978-08-02 | Air Prod & Chem | Production of liquid oxygen and/or liquid nitrogen |
| JPS5495552U (ja) * | 1977-12-16 | 1979-07-06 | ||
| US4375367A (en) * | 1981-04-20 | 1983-03-01 | Air Products And Chemicals, Inc. | Lower power, freon refrigeration assisted air separation |
| US4715873A (en) * | 1986-04-24 | 1987-12-29 | Air Products And Chemicals, Inc. | Liquefied gases using an air recycle liquefier |
| US4705548A (en) * | 1986-04-25 | 1987-11-10 | Air Products And Chemicals, Inc. | Liquid products using an air and a nitrogen recycle liquefier |
| US5275003A (en) * | 1992-07-20 | 1994-01-04 | Air Products And Chemicals, Inc. | Hybrid air and nitrogen recycle liquefier |
| FR2714721B1 (fr) * | 1993-12-31 | 1996-02-16 | Air Liquide | Procédé et installation de liquéfaction d'un gaz. |
| JP2875206B2 (ja) * | 1996-05-29 | 1999-03-31 | 日本エア・リキード株式会社 | 高純度窒素製造装置及び方法 |
| US5678425A (en) * | 1996-06-07 | 1997-10-21 | Air Products And Chemicals, Inc. | Method and apparatus for producing liquid products from air in various proportions |
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2009
- 2009-07-24 JP JP2009173323A patent/JP5643491B2/ja active Active
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2010
- 2010-07-20 WO PCT/JP2010/062158 patent/WO2011010630A1/ja not_active Ceased
- 2010-07-20 US US13/386,466 patent/US20120131951A1/en not_active Abandoned
- 2010-07-20 KR KR1020117028238A patent/KR20120040685A/ko not_active Ceased
- 2010-07-20 CN CN201080032477.8A patent/CN102472575B/zh active Active
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| US20120131951A1 (en) | 2012-05-31 |
| KR20120040685A (ko) | 2012-04-27 |
| WO2011010630A1 (ja) | 2011-01-27 |
| TWI525298B (zh) | 2016-03-11 |
| JP2011027318A (ja) | 2011-02-10 |
| CN102472575B (zh) | 2014-11-05 |
| CN102472575A (zh) | 2012-05-23 |
| TW201109602A (en) | 2011-03-16 |
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