KR20070083808A - 질소 제조방법 및 장치 - Google Patents
질소 제조방법 및 장치 Download PDFInfo
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- KR20070083808A KR20070083808A KR1020077009472A KR20077009472A KR20070083808A KR 20070083808 A KR20070083808 A KR 20070083808A KR 1020077009472 A KR1020077009472 A KR 1020077009472A KR 20077009472 A KR20077009472 A KR 20077009472A KR 20070083808 A KR20070083808 A KR 20070083808A
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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
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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
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04254—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using the cold stored in external cryogenic fluids
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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
- F25J3/04248—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
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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
- F25J3/04248—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
- F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low 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
- F25J3/04406—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
- F25J3/04424—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 without thermally coupled high and low pressure columns, i.e. a so-called split columns
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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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/20—Processes or apparatus using separation by rectification in an elevated pressure multiple column system wherein the lowest pressure column is at a pressure well above the minimum pressure needed to overcome pressure drop to reject the products to atmosphere
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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
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/42—Nitrogen
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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
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/02—Bath type boiler-condenser using thermo-siphon effect, e.g. with natural or forced circulation or pool boiling, i.e. core-in-kettle heat exchanger
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
Claims (7)
- 원료공기를 심랭액화(深冷液化) 분리하여 제품 질소를 채취하는 질소 제조방법으로서; 상기 질소 제조방법은;압축, 정제, 냉각한 원료공기를 0.8MPa 이상, 1.1MPa 이하의 압력으로 저온 증류하여 제 1 질소가스와 제 1 산소부화 액화유체(a first oxygen-enriched liquefied fluid)로 분리하는 제 1 분리공정과;상기 제 1 질소가스와 상기 제 1 산소부화 액화유체를 간접 열교환시켜 제 1 질소가스를 응축하여 제 1 액화질소를 얻는 것과 동시에 제 1 산소부화 액화유체를 증발하여 제 1 산소부화 가스유체(a first oxygen-enriched gas fluid)를 얻는 제 1 간접 열교환공정과;상기 제 1 산소부화 가스유체를 0.4MPa 이상에서, 또한, 상기 제 1 분리공정보다 낮은 압력으로 저온 증류하여 제 2 질소가스와 제 2 산소부화 액화유체로 분리하는 제 2 분리공정과;상기 제 2 질소가스와 상기 제 2 산소부화 액화유체를 간접 열교환시켜 제 2 질소가스를 응축하여 제 2 액화질소를 얻는 것과 동시에 제 2 산소부화 액화유체를 증발하여 제 2 산소부화 가스유체를 얻는 제 2 간접 열교환공정과;상기 제 2 산소부화 가스유체를 단열 팽창시키는 것에 의해 운전에 필요한 한랭(寒冷)을 발생시키는 한랭발생공정과;상기 제 1 질소가스의 일부를 냉열회수 후에 제 1 제품 질소가스로서 도출하 는 제 1 제품 회수공정과;상기 제 2 질소가스의 일부를 냉열회수 후에 제 2 제품 질소가스로서 도출하는 제 2 제품 회수공정을 포함한 질소 제조방법.
- 원료공기를 심랭액화 분리하여 제품 질소를 채취하는 질소 제조방법으로서, 상기 질소 제조방법은;압축, 정제, 냉각한 원료공기를 0.6MPa 이상, 1.1MPa 이하의 압력으로 저온 증류하여 제 1 질소가스와 제 1 산소부화 액화유체로 분리하는 제 1 분리공정과;상기 제 1 질소가스와 상기 제 1 산소부화 액화유체를 간접 열교환시켜 제 1 질소가스를 응축하여 제 1 액화질소를 얻는 것과 동시에 제 1 산소부화 액화유체를 증발하여 제 1 산소부화 가스유체를 얻는 제 1 간접 열교환공정과;상기 제 1 산소부화 가스유체를 0.3MPa 이상에서 또한, 상기 제 1 분리공정보다 낮은 압력으로 저온 증류하여 제 2 질소가스와 제 2 산소부화 액화유체로 분리하는 제 2 분리공정과;상기 제 2 질소가스와 상기 제 2 산소부화 액화유체를 간접 열교환시켜 제 2 질소가스를 응축하여 제 2 액화질소를 얻는 것과 동시에 제 2 산소부화 액화유체를 증발하여 제 2 산소부화 가스유체를 얻는 제 2 간접 열교환공정과;상기 원료공기의 일부를 단열 팽창시키는 것에 의해 운전에 필요한 한랭을 발생시키는 한랭발생공정과;상기 한랭발생공정을 거친 원료공기를 상기 제 2 분리공정의 중간단(中間段) 에 도입하는 공기도입공정과;상기 제 1 질소가스의 일부를 냉열회수 후에 제 1 제품 질소가스로서 도출하는 제 1 제품 회수공정과;상기 제 2 질소가스의 일부를 냉열회수 후에 제 2 제품 질소가스로서 도출하는 제 2 제품 회수공정을 포함한 질소 제조방법.
- 제 1 항 또는 제 2 항에 있어서, 상기 제 2 제품 질소가스를 압축하는 공정을 포함하는 질소 제조방법.
- 원료공기를 심랭액화 분리하여 제품 질소를 채취하는 질소 제조장치로서; 질소 제조장치는;압축, 정제, 냉각된 원료공기를 0.8MPa 이상, 1.1MPa 이하의 압력으로 저온 증류하여 탑상부(塔上部)의 제 1 질소가스와 탑저부(塔底部)의 제 1 산소부화 액화유체로 분리하는 제 1 정류탑과;상기 제 1 질소가스와 상기 제 1 산소부화 액화유체를 간접 열교환시켜 제 1 질소가스를 응축하여 제 1 액화질소를 얻는 것과 동시에 제 1 산소부화 액화유체를 증발하여 제 1 산소부화 가스유체를 얻는 제 1 응축기와;상기 제 1 산소부화 가스유체를 0.4MPa 이상에서, 또한, 상기 제 1 정류탑보다 낮은 압력으로 저온 증류하여 탑상부의 제 2 질소가스와 탑저부의 제 2 산소부화 액화유체로 정류분리하는 제 2 정류탑과;상기 제 2 질소가스와 상기 제 2 산소부화 액화유체를 간접 열교환시켜 제 2 질소가스를 응축하여 제 2 액화질소를 얻는 것과 동시에 제 2 산소부화 액화유체를 증발하여 제 2 산소부화 가스유체를 얻는 제 2 응축기와;제 2 산소부화 가스유체를 단열 팽창시켜 장치의 운전에 필요한 한랭을 발생하는 팽창터빈과;상기 제 1 질소가스의 일부를 냉열회수 후에 제 1 제품 질소가스로서 도출하는 제 1 제품 회수경로와;상기 제 2 질소가스의 일부를 냉열회수 후에 제 2 제품 질소가스로서 도출하는 제 2 제품 회수경로를 포함한 질소 제조장치.
- 원료공기를, 심랭액화 분리하여 제품 질소를 채취하는 질소 제조장치로서; 질소 제조장치는;압축, 정제, 냉각된 원료공기를 0.6MPa 이상, 1.1MPa 이하의 압력으로 저온 증류하여 탑상부의 제 1 질소가스와 탑저부의 제 1 산소부화 액화유체로 분리하는 제 1 정류탑과;상기 제 1 질소가스와 상기 제 1 산소부화 액화유체를 간접 열교환시켜 제 1 질소가스를 응축하여 제 1 액화질소를 얻는 것과 동시에 제 1 산소부화 액화유체를 증발하여 제 1 산소부화 가스유체를 얻는 제 1 응축기와;상기 제 1 산소부화 가스유체를 0.3MPa 이상에서, 또한, 상기 제 1 정류탑보다 낮은 압력으로 저온 증류하여 탑상부의 제 2 질소가스와 탑저부의 제 2 산소부 화 액화유체로 정류분리하는 제 2 정류탑과;상기 제 2 질소가스와 상기 제 2 산소부화 액화유체를 간접 열교환시켜 제 2 질소가스를 응축하여 제 2 액화질소를 얻는 것과 동시에 제 2 산소부화 액화유체를 증발하여 제 2 산소부화 가스유체를 얻는 제 2 응축기와;상기 원료공기의 일부를 단열 팽창시켜 장치의 운전에 필요한 한랭을 발생하는 팽창터빈과;상기 팽창터빈을 거친 원료공기를 상기 제 2 정류탑의 중간단에 도입하는 공기도입경로와;상기 제 1 질소가스의 일부를 냉열회수 후에 제 1 제품 질소가스로서 도출하는 제 1 제품 회수경로와;상기 제 2 질소가스의 일부를 냉열회수 후에 제 2 제품 질소가스로서 도출하는 제 2 제품 회수경로를 포함한 질소 제조장치.
- 제 4 항 또는 제 5 항에 있어서, 상기 제 2 제품 질소가스를 압축하는 질소압축기를 구비하고 있는 질소 제조장치.
- 제 4 항 또는 제 5 항에 있어서, 상기 제 2 정류탑은, 장치 밖으로부터의 액화질소를 도입하는 액화질소 도입경로를 구비하고 있는 질소 제조장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004323273A JP4515225B2 (ja) | 2004-11-08 | 2004-11-08 | 窒素製造方法及び装置 |
JPJP-P-2004-00323273 | 2004-11-08 |
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KR20070083808A true KR20070083808A (ko) | 2007-08-24 |
KR100859916B1 KR100859916B1 (ko) | 2008-09-23 |
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KR1020077009472A KR100859916B1 (ko) | 2004-11-08 | 2005-11-07 | 질소 제조방법 및 장치 |
Country Status (6)
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US (1) | US20080264101A1 (ko) |
JP (1) | JP4515225B2 (ko) |
KR (1) | KR100859916B1 (ko) |
CN (1) | CN100529622C (ko) |
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WO (1) | WO2006049272A1 (ko) |
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JP5032407B2 (ja) * | 2008-07-24 | 2012-09-26 | 大陽日酸株式会社 | 窒素製造方法及び装置 |
CN111141110B (zh) * | 2020-01-19 | 2021-05-07 | 杭州特盈能源技术发展有限公司 | 一种低能耗中压氮气制取工艺 |
CN111811211A (zh) * | 2020-07-07 | 2020-10-23 | 杭州杭氧低温液化设备有限公司 | 一种带冷冻机组单塔的制氮装置及方法 |
CN113883830B (zh) * | 2021-11-01 | 2022-11-18 | 四川空分设备(集团)有限责任公司 | 一种可制取多液体低压高纯氮的方法及装置 |
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JPS61110872A (ja) * | 1984-11-02 | 1986-05-29 | 日本酸素株式会社 | 窒素製造方法 |
US4604117A (en) * | 1984-11-15 | 1986-08-05 | Union Carbide Corporation | Hybrid nitrogen generator with auxiliary column drive |
JPS6454187A (en) * | 1987-08-25 | 1989-03-01 | Nippon Oxygen Co Ltd | Manufacture of nitrogen gas |
JP2920392B2 (ja) * | 1989-11-20 | 1999-07-19 | 日本酸素株式会社 | 空気液化分離装置における液化窒素の過冷却方法 |
GB9008752D0 (en) * | 1990-04-18 | 1990-06-13 | Boc Group Plc | Air separation |
US5137559A (en) * | 1990-08-06 | 1992-08-11 | Air Products And Chemicals, Inc. | Production of nitrogen free of light impurities |
DE4109945A1 (de) * | 1991-03-26 | 1992-10-01 | Linde Ag | Verfahren zur tieftemperaturzerlegung von luft |
US5165245A (en) * | 1991-05-14 | 1992-11-24 | Air Products And Chemicals, Inc. | Elevated pressure air separation cycles with liquid production |
US5419137A (en) * | 1993-08-16 | 1995-05-30 | The Boc Group, Inc. | Air separation process and apparatus for the production of high purity nitrogen |
US5396772A (en) * | 1994-03-11 | 1995-03-14 | The Boc Group, Inc. | Atmospheric gas separation method |
US5507148A (en) * | 1994-10-25 | 1996-04-16 | The Boc Group, Inc. | Air separation method and apparatus to produce nitrogen |
CN1153895A (zh) * | 1995-11-25 | 1997-07-09 | 林德股份公司 | 在超大气压条件下提取氧和氮的方法和装置 |
US5890378A (en) * | 1997-04-21 | 1999-04-06 | Elcor Corporation | Hydrocarbon gas processing |
GB9807833D0 (en) * | 1998-04-09 | 1998-06-10 | Boc Group Plc | Separation of air |
KR100275859B1 (ko) * | 1998-11-05 | 2000-12-15 | 김영대 | 고순도 질소가스 제조방법 |
GB9910701D0 (en) * | 1999-05-07 | 1999-07-07 | Boc Group Plc | Separation of air |
US6125656A (en) * | 1999-11-03 | 2000-10-03 | Praxair Technology, Inc. | Cryogenic rectification method for producing nitrogen gas and liquid nitrogen |
FR2800859B1 (fr) * | 1999-11-05 | 2001-12-28 | Air Liquide | Procede et appareil de separation d'air par distillation cryogenique |
US6233970B1 (en) * | 1999-11-09 | 2001-05-22 | Air Products And Chemicals, Inc. | Process for delivery of oxygen at a variable rate |
JP3738213B2 (ja) * | 2001-11-19 | 2006-01-25 | 大陽日酸株式会社 | 窒素製造方法及び装置 |
JP2004020158A (ja) * | 2002-06-20 | 2004-01-22 | Air Water Inc | 空気分離装置 |
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- 2005-11-07 CN CNB2005800371299A patent/CN100529622C/zh active Active
- 2005-11-07 WO PCT/JP2005/020340 patent/WO2006049272A1/ja active Application Filing
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CN101048637A (zh) | 2007-10-03 |
KR100859916B1 (ko) | 2008-09-23 |
TWI326350B (en) | 2010-06-21 |
JP2006132854A (ja) | 2006-05-25 |
US20080264101A1 (en) | 2008-10-30 |
WO2006049272A1 (ja) | 2006-05-11 |
TW200617336A (en) | 2006-06-01 |
JP4515225B2 (ja) | 2010-07-28 |
CN100529622C (zh) | 2009-08-19 |
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