EP1671070A1 - Appareil et procede de separation d'un melange gazeux par utilisation cryogenique - Google Patents
Appareil et procede de separation d'un melange gazeux par utilisation cryogeniqueInfo
- Publication number
- EP1671070A1 EP1671070A1 EP04817100A EP04817100A EP1671070A1 EP 1671070 A1 EP1671070 A1 EP 1671070A1 EP 04817100 A EP04817100 A EP 04817100A EP 04817100 A EP04817100 A EP 04817100A EP 1671070 A1 EP1671070 A1 EP 1671070A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- bearings
- gas
- column
- separated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- F01D25/18—Lubricating arrangements
- F01D25/22—Lubricating arrangements using working-fluid or other gaseous fluid as lubricant
-
- 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
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
-
- 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
- F25J3/0295—Start-up or control of the process; Details of the apparatus used, e.g. sieve plates, packings
-
- 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
- F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
-
- 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
-
- 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
- F25J3/04309—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 nitrogen
-
- 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
- F25J3/04412—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
-
- 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
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
-
- 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
- F05D2240/00—Components
- F05D2240/50—Bearings
- F05D2240/51—Magnetic
-
- 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
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
-
- 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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box
Definitions
- the present invention relates to an apparatus and a method for separating a gas mixture by cryogenic distillation.
- the gas separation units from air use turbines with lubricated bearings, these bearings being axial or radial.
- the turbines expand air or nitrogen with the production of external work, the expansion being of isentropic type with irreversibilities.
- bearing turbines lubricated, for example with oil have two major drawbacks: Firstly, there is a risk of pollution of the gas produced by oil in the event of failure of the sealing system along the tree.
- the object of the invention is to overcome the lubricated bearings for the expansion turbines of the gas mixture separation units by cryogenic distillation by proposing the expansion of the gas mixture to be separated in a turbine on bearings (ball or roller) steel or ceramic), these bearings may have to be greased periodically but not being oiled.
- a gas separation apparatus by cryogenic distillation comprising a column system, means for sending a gas to be separated to a column of the columns, means for withdrawing at least one product from the column system, means for sending a gas from the apparatus, possibly at least part of the gas mixture to be separated, into a bearing turbine and means for sending at least one part of the expanded gas in the one-column turbine of the column system in the case where the expanded gas constitutes at least part of the gas mixture to be separated, characterized in that the bearings of the turbine are rolling bearings.
- the bearings of the turbine are rolling bearings.
- the turbine has non-oiled bearings.
- the turbine has non-lubricated bearings.
- the gas to be separated contains as main components oxygen and / or nitrogen and / or hydrogen and / or methane and / or carbon monoxide.
- the expanded gas is air, nitrogen or hydrogen.
- the turbine is installed at least 1 meter above the ground, at least
- the turbine is braked by a brake booster, possibly of the centrifugal type, placed on the same shaft as the turbine, all the bearings of this common shaft being non-lubricated.
- All the bearings of the common shaft are of the rolling bearing type.
- the turbine is braked by a brake generator, the bearings of which are not lubricated.
- the bearings of the brake generator are magnetic.
- a method for separating a gas mixture by cryogenic distillation in which a gas mixture to be separated is sent to a column of a column system, at least one product is withdrawn from the column system, at least part of a gas from the apparatus, possibly at least part of the gas mixture to be separated, is sent to a bearing turbine characterized in that the bearings of the turbine are rolling bearings.
- the turbine is braked by a brake generator, the bearings of which are not lubricated, and the brake generator is driven at the same speed as the turbine.
- An air flow 1 is compressed at medium pressure in a compressor 3 and is then purified in a purifying unit 5 which can be of any known type.
- the air is then divided into two fractions 21, 23.
- the fraction 21 cools by crossing the exchange line 7 and is sent to the bottom of the medium pressure column 13 in gaseous form.
- the rest of the air 23 is boosted in a booster 9, cooled in a cooler 19 and sent to the exchange line 7 where it cools partially before being sent to the insufflation turbine 11.
- This turbine can be a turbine on bearings (steel or ceramic balls or rollers).
- the turbine 11 is mounted at least 1 meter from the ground, preferably at least 2 meters from the ground or even at least 5 meters from the ground.
- the turbine 11 is located on the same shaft as the booster 9.
- the booster 9 is preferably of the centrifugal type, having non-lubricated bearings. Preferably all the bearings of the shaft are rolling bearings.
- the booster can be replaced by a generator, also with non-lubricated bearings.
- the air expanded in the turbine 11 is sent to a low pressure minaret column 15. - Flow rates of rich liquid 25, lower lean liquid 27 and upper lean liquid 29 are sent from the medium pressure column 13 to the column low pressure 15. A purge flow is withdrawn from the vaporizer-condenser 17 connecting the two columns.
- FIG. 2 shows an apparatus for separating air by cryogenic distillation with an air cycle.
- An air flow 1 is compressed at medium pressure in a compressor 3 and is then purified in a purifying unit 5 which can be of any known type.
- the air is boosted in a booster 9, cooled in a cooler (not shown) and sent to the exchange line 7 where it cools partially before being sent in part to a Claude 11 turbine.
- This turbine is a turbine on bearings (steel or ceramic ball or roller).
- the turbine 11 is mounted at least 1 meter from the ground, preferably at least 2 meters from the ground or even at least 5 meters from the ground.
- the turbine 11 can be coupled to the booster 9.
- the expanded air in the turbine 11 is sent partly to the medium pressure column 13 and partly recycled (flow 43) to the booster 9.
- the expanded air in the turbine 11 is sent to the medium pressure column.
- Flow rates of rich liquid 25, lower lean liquid 27 and upper lean liquid 29 are sent from the medium pressure column 13 to the low pressure column 15.
- a purge flow is withdrawn from the vaporizer-condenser 17 connecting the two columns.
- the turbine 11 is mounted at least 1 meter from the ground, preferably at least 2 meters from the ground or even at least 5 meters from the ground.
- the expanded nitrogen is mixed with the residual nitrogen 33.
- the low pressure column 15 operates under a sufficiently high pressure, it is possible to expand a low pressure nitrogen flow in the turbine.
- the devices concerned can include any possible combination of Claude turbines, insufflation turbines and nitrogen turbines, provided that at least one of these turbines is a turbine on bearings (with steel balls or rollers or ceramic).
- the invention is obviously not limited to methods using a minaret column. It applies to any type of air separation process using an expansion turbine, including so-called pump processes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0350630A FR2860576A1 (fr) | 2003-10-01 | 2003-10-01 | Appareil et procede de separation d'un melange gazeux par distillation cryogenique |
| PCT/FR2004/050450 WO2005033600A1 (fr) | 2003-10-01 | 2004-09-21 | Appareil et procede de separation d’un melange gazeux par utilisation cryogenique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1671070A1 true EP1671070A1 (fr) | 2006-06-21 |
Family
ID=34307552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04817100A Withdrawn EP1671070A1 (fr) | 2003-10-01 | 2004-09-21 | Appareil et procede de separation d'un melange gazeux par utilisation cryogenique |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20070000282A1 (fr) |
| EP (1) | EP1671070A1 (fr) |
| JP (1) | JP2007507682A (fr) |
| CN (1) | CN1860339A (fr) |
| FR (1) | FR2860576A1 (fr) |
| WO (1) | WO2005033600A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949708B (zh) * | 2016-11-25 | 2020-02-11 | 乔治洛德方法研究和开发液化空气有限公司 | 一种对原有低温空分装置进行改装用以提高低压纯氮气产量的方法 |
| JP7360909B2 (ja) * | 2019-11-18 | 2023-10-13 | 東洋エンジニアリング株式会社 | 水素分離方法および水素分離装置 |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2165994A (en) * | 1933-03-24 | 1939-07-11 | Linde Eismasch Ag | Turbine for low temperature gas separation |
| US2529880A (en) * | 1949-03-15 | 1950-11-14 | Elliott Co | Turboexpander |
| GB976352A (en) * | 1960-04-04 | 1964-11-25 | Petrocarbon Dev Ltd | Improvements in and relating to the production of oxygen |
| US3542443A (en) * | 1968-10-28 | 1970-11-24 | Us Air Force | Unlubricated ball and roller bearings |
| JPS49104047A (fr) * | 1973-02-13 | 1974-10-02 | ||
| US4455121A (en) * | 1982-11-01 | 1984-06-19 | Avco Corporation | Rotating turbine stator |
| JPS6071882A (ja) * | 1983-09-29 | 1985-04-23 | 日本酸素株式会社 | 気体軸受式膨張タ−ビンを使用した空気分離装置 |
| JPH0765619B2 (ja) * | 1985-06-28 | 1995-07-19 | 株式会社日立メデイコ | 固体潤滑転がり軸受 |
| US4808070A (en) * | 1987-08-17 | 1989-02-28 | Fonda Bonardi G | Fluid bearing |
| US5066145A (en) * | 1989-06-29 | 1991-11-19 | Tribology Systems, Inc. | Solid-lubricated bearing assembly |
| JPH0340022U (fr) * | 1989-08-25 | 1991-04-17 | ||
| JP2638375B2 (ja) * | 1992-02-20 | 1997-08-06 | 株式会社日立製作所 | 連続溶融金属メッキ装置及び連続溶融金属メッキ装置用軸受 |
| US5248239A (en) * | 1992-03-19 | 1993-09-28 | Acd, Inc. | Thrust control system for fluid handling rotary apparatus |
| US5211489A (en) * | 1992-10-07 | 1993-05-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Radial spline assembly for antifriction bearings |
| DE9215696U1 (de) * | 1992-11-18 | 1994-03-17 | Anton Piller GmbH & Co KG, 37520 Osterode | Stromgewinnungsanlage |
| JP3459927B2 (ja) * | 1993-03-17 | 2003-10-27 | 宇宙開発事業団 | 固体潤滑転がり軸受 |
| JP3452611B2 (ja) * | 1993-08-30 | 2003-09-29 | 株式会社神戸製鋼所 | ガス液化装置 |
| FR2711779B1 (fr) * | 1993-10-26 | 1995-12-08 | Air Liquide | Procédé et installation de purification cryogénique d'hydrogène. |
| DE19543953C1 (de) * | 1995-11-25 | 1996-12-19 | Linde Ag | Verfahren und Vorrichtung zur Gewinnung von Sauerstoff und Stickstoff unter überatmosphärischem Druck |
| JPH09291832A (ja) * | 1996-04-26 | 1997-11-11 | Toshiba Corp | コンバインドサイクル利用液体水素製造装置 |
| US5689973A (en) * | 1996-05-14 | 1997-11-25 | The Boc Group, Inc. | Air separation method and apparatus |
| US5924307A (en) * | 1997-05-19 | 1999-07-20 | Praxair Technology, Inc. | Turbine/motor (generator) driven booster compressor |
| CA2321641A1 (fr) * | 1998-02-27 | 1999-09-02 | Allison Engine Company, Inc. | Procede et dispositif de montage d'une portee |
| JP2000002481A (ja) * | 1998-06-16 | 2000-01-07 | Nippon Sanso Kk | 窒素製造装置及び方法 |
| JP2002147462A (ja) * | 2000-11-14 | 2002-05-22 | Ntn Corp | 転がり軸受 |
| DE10120947A1 (de) * | 2001-04-22 | 2002-10-24 | Daimler Chrysler Ag | Brennstoffzellen-Luftversorgung |
| DE50107285D1 (de) * | 2001-07-06 | 2005-10-06 | Atlas Copco Energas | Expansionsturbine für Tieftemperaturanwendungen |
| DE10156228B4 (de) * | 2001-11-15 | 2015-02-19 | Atlas Copco Energas Gmbh | Rotor einer Expansionsturbine für Tieftemperaturanwendungen |
-
2003
- 2003-10-01 FR FR0350630A patent/FR2860576A1/fr not_active Withdrawn
-
2004
- 2004-09-21 CN CNA2004800285674A patent/CN1860339A/zh active Pending
- 2004-09-21 JP JP2006530448A patent/JP2007507682A/ja active Pending
- 2004-09-21 EP EP04817100A patent/EP1671070A1/fr not_active Withdrawn
- 2004-09-21 WO PCT/FR2004/050450 patent/WO2005033600A1/fr not_active Ceased
- 2004-09-21 US US10/573,903 patent/US20070000282A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005033600A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005033600A1 (fr) | 2005-04-14 |
| FR2860576A1 (fr) | 2005-04-08 |
| JP2007507682A (ja) | 2007-03-29 |
| CN1860339A (zh) | 2006-11-08 |
| US20070000282A1 (en) | 2007-01-04 |
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