RU2479805C2 - Method and plant for air separation by method of cryogenic distillation - Google Patents
Method and plant for air separation by method of cryogenic distillation Download PDFInfo
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- RU2479805C2 RU2479805C2 RU2009137584/06A RU2009137584A RU2479805C2 RU 2479805 C2 RU2479805 C2 RU 2479805C2 RU 2009137584/06 A RU2009137584/06 A RU 2009137584/06A RU 2009137584 A RU2009137584 A RU 2009137584A RU 2479805 C2 RU2479805 C2 RU 2479805C2
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- column
- elongated
- pressure column
- elongated shape
- reboiler
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Classifications
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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
- F25J3/04412—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
- F25J3/04763—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
- F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
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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
- F25J3/04763—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
- F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
- F25J3/04878—Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same 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
- F25J3/04763—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
- F25J3/0489—Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
-
- 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
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/52—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen enriched compared to air ("crude oxygen")
Landscapes
- 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
Изобретение относится к способу и установке дистилляции воздуха методом криогенной дистилляции. В частности, оно относится к установке, использующей двойную колонну разделения воздуха и содержащей колонну среднего давления и колонну низкого давления, термически соединенные между собой посредством ребойлера-конденсатора.The invention relates to a method and apparatus for air distillation by cryogenic distillation. In particular, it relates to a plant using a double air separation column and comprising a medium pressure column and a low pressure column thermally connected to each other by a reboiler-condenser.
В документе ЕР-А-1078212 приводится описание установки или теплообменника, установленной под колонной низкого давления, причем эта колонна располагается рядом с колонной среднего давления.EP-A-1078212 describes a plant or heat exchanger installed underneath a low pressure column, which column is adjacent to the medium pressure column.
Согласно настоящему изобретению предусматривается установка разделения воздуха, содержащая: основную линию обмена; имеющий вытянутую форму первый элемент, содержащий колонну среднего давления двойной колонны, на которой размещаются ребойлер-конденсатор, и вспомогательную колонну, содержащую, по меньшей мере, одну теоретическую ступень, представляющую собой нижнюю часть колонны низкого давления; имеющий вытянутую форму второй элемент, образующий оставшуюся часть колонны низкого давления; средства перемещения воздуха из основной линии обмена в колонну среднего давления; средства перемещения газа из верхней части колонны среднего давления в ребойлер-конденсатор; средства перемещения конденсированного ребойлером газа из верхней части в колонну среднего давления; средства перемещения газа из верхней части вспомогательной колонны в резервуар имеющего вытянутую форму второго элемента; средства перемещения жидкости из резервуара имеющего вытянутую форму второго элемента в верхнюю часть вспомогательной колонны; переохладитель, расположенный под имеющим вытянутую форму первым или вторым элементом; средства перемещения жидкости из резервуара колонны среднего давления в переохладитель, а затем в имеющий вытянутую форму второй элемент и/или средства перемещения жидкости из верхней части колонны среднего давления в переохладитель, а затем в имеющий вытянутую форму второй элемент; средства перемещения газа из верхней части имеющего вытянутую форму второго элемента в переохладитель.According to the present invention, there is provided an air separation unit comprising: a main exchange line; having an elongated first element, comprising a medium column of a double column, on which a reboiler-condenser is placed, and an auxiliary column containing at least one theoretical stage, which is the lower part of the low pressure column; an elongated second element forming the remainder of the low pressure column; means for moving air from the main exchange line to the medium pressure column; means for moving gas from the upper part of the medium-pressure column to the reboiler-condenser; means for moving the condensed gas reboiler from the upper part to the medium pressure column; means for moving gas from the upper part of the auxiliary column into the reservoir of an elongated second element; means for moving fluid from the reservoir of an elongated second element to the top of the auxiliary column; a subcooler located under the elongated first or second element; means for moving liquid from the reservoir of the medium pressure column to the subcooler, and then to the elongated second element and / or means to move the liquid from the top of the medium pressure column to the supercooler, and then to the elongated second element; means for moving gas from the upper part of the elongated second element to the subcooler.
Предпочтительно, переохладитель располагается под имеющим вытянутую форму вторым элементом.Preferably, the subcooler is located under the elongated second element.
Переохладитель и имеющий вытянутую форму второй элемент могут быть расположены в пакете, длина которого не превышает 35 метров, даже 30 метров.The subcooler and the elongated second element can be located in a bag whose length does not exceed 35 meters, even 30 meters.
Такая конфигурация позволяет наилучшим образом заполнить объем холодного корпуса путем:This configuration allows you to best fill the volume of the cold case by:
- сбалансированного подбора высоты двух секций колонн;- balanced selection of the height of the two sections of the columns;
- грамотного расположения переохладителя для оптимизации секции холодного корпуса;- proper arrangement of the subcooler to optimize the section of the cold case;
- размещения колонны среднего давления на земле, обеспечивая подачу находящегося в нагруженном состоянии двухфазного воздуха на колонну;- placement of the medium pressure column on the ground, ensuring the supply of biphasic air in the loaded state to the column;
- обеспечения хорошего нагружения жидкостью насоса подъема жидкости;- ensuring good loading of the liquid by the liquid lifting pump;
- получения возможности иметь холодный корпус, включая параллельную объемную секцию, и минарет высотой менее 35 м, даже 30 м, используя по-прежнему перекрещивающиеся гофрированные конструктивные насадки.- getting the opportunity to have a cold case, including a parallel volume section, and a minaret with a height of less than 35 m, even 30 m, using still intersecting corrugated structural nozzles.
Далее будет приведено более детальное описание предлагаемого изобретения со ссылкой на фиг.1, на которой изображена установка разделения воздуха согласно изобретению.Next will be given a more detailed description of the invention with reference to figure 1, which shows the installation of air separation according to the invention.
Установка разделения воздуха содержит имеющий вытянутую форму первый элемент А и имеющий вытянутую форму второй элемент В. Имеющий вытянутую форму первый элемент А содержит колонну среднего давления 1 двойной колонны, сверху которой размещен ребойлер-конденсатор 5. Сверху этого ребойлера находится вспомогательная колонна, содержащая несколько теоретических ступеней перекрещивающихся гофрированных конструктивных насадок, образующих нижнюю часть 2 колонны низкого давления.The air separation unit contains an elongated first element A and an elongated second element B. An elongated first element A contains a medium pressure column 1 of a double column, on top of which a reboiler-condenser 5 is placed. On top of this reboiler there is an auxiliary column containing several theoretical steps of intersecting corrugated structural nozzles forming the lower part of the 2 low-pressure columns.
Имеющий вытянутую форму второй элемент В состоит из оставшейся части колонны низкого давления 3, также содержащей перекрещивающиеся гофрированные конструктивные насадки.The elongated second element B consists of the remainder of the low-pressure column 3, also containing intersecting corrugated structural nozzles.
Под вторым элементом находится переохладитель 6.Under the second element is subcooler 6.
Установка содержит средства 11 перемещения сжатого воздуха, очищенного и охлажденного в основной линии обмена, в колонну среднего давления. Азот, содержащийся в верхней части колонны, подается в ребойлер 5, где он конденсируется.The installation comprises means 11 for moving compressed air, purified and cooled in the main exchange line, to the medium pressure column. The nitrogen contained in the upper part of the column is fed to the reboiler 5, where it condenses.
Газообразный кислород 17 выводится в резервуар вспомогательной колонны.Oxygen gas 17 is discharged into the auxiliary column reservoir.
Из верхней части вспомогательной колонны газ 15, насыщенный кислородом, отбирается и подается в резервуар колонны 3. Жидкость из сборника 13 колонны 3 перемещается в верхнюю часть вспомогательной колонны 2 после создания избыточного давления в насосе Р.From the upper part of the auxiliary column, oxygen-saturated gas 15 is withdrawn and fed into the reservoir of the column 3. The liquid from the collector 13 of the column 3 is transferred to the upper part of the auxiliary column 2 after the overpressure in the pump R.
Имеющий вытянутую форму первый элемент размещается на уровне земли. Имеющий вытянутую форму второй элемент приподнят при помощи металлической станины, причем эта станина в свою очередь размещается на уровне земли. Данная станина в этом случае используется в качестве опоры для переохладителя. Насос Р также располагается на уровне земли.The elongated first element is placed at ground level. The elongated second element is raised using a metal frame, and this frame, in turn, is located at ground level. This bed in this case is used as a support for the subcooler. Pump P is also located at ground level.
Таким образом, верхние части вспомогательной колонны 2 и имеющего вытянутую форму второго элемента располагаются по существу на одном уровне.Thus, the upper parts of the auxiliary column 2 and the elongated second element are located essentially at the same level.
Насыщенная жидкость, содержащаяся в резервуаре колонны среднего давления, охлаждается в переохладителе перед подачей в имеющий вытянутой формы второй элемент. Аналогичным образом одна или несколько обогащенных азотом жидкостей, поступающих из верхней части колонны среднего давления, могут быть там охлаждены перед подачей в верхнюю часть имеющего вытянутую форму второго элемента.The saturated liquid contained in the reservoir of the medium-pressure column is cooled in a subcooler before being fed into an elongated second element. Similarly, one or more nitrogen enriched fluids coming from the top of the medium pressure column can be cooled there before being fed to the top of the elongated second element.
По меньшей мере, один газ из верхней части имеющего вытянутую форму второго элемента нагревается в переохладителе перед подачей в основную линию обмена.At least one gas from the top of the elongated second element is heated in a subcooler before being fed to the main exchange line.
Claims (3)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0753767A FR2913758B3 (en) | 2007-03-12 | 2007-03-12 | METHOD AND APPARATUS FOR AIR SEPARATION BY CRYOGENIC DISTILLATION |
FR0753767 | 2007-03-12 | ||
FR0756022A FR2918162A1 (en) | 2007-03-12 | 2007-06-26 | Air separation apparatus for cold box, has liquid supplying unit supplying liquid from head of medium-pressure column to subcooler and elongated shape member, and gas supplying unit supplying gas from head of member to subcooler |
FR0756022 | 2007-06-26 | ||
PCT/FR2008/050280 WO2008110732A2 (en) | 2007-03-12 | 2008-02-20 | Method and device for separating air by cryogenic distillation |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2009137584A RU2009137584A (en) | 2011-04-20 |
RU2479805C2 true RU2479805C2 (en) | 2013-04-20 |
Family
ID=39760146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2009137584/06A RU2479805C2 (en) | 2007-03-12 | 2008-02-20 | Method and plant for air separation by method of cryogenic distillation |
Country Status (10)
Country | Link |
---|---|
US (1) | US20100139318A1 (en) |
EP (1) | EP2132509B1 (en) |
JP (1) | JP2010521646A (en) |
CN (1) | CN102016467A (en) |
BR (1) | BRPI0807965A2 (en) |
FR (2) | FR2913758B3 (en) |
PL (1) | PL2132509T3 (en) |
RU (1) | RU2479805C2 (en) |
TR (1) | TR201810844T4 (en) |
WO (1) | WO2008110732A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010012920A1 (en) * | 2010-03-26 | 2011-09-29 | Linde Aktiengesellschaft | Apparatus for the cryogenic separation of air |
CN209524679U (en) * | 2018-10-29 | 2019-10-22 | 乔治洛德方法研究和开发液化空气有限公司 | By low temperature distillation come the equipment of air distillation |
EP4396509A1 (en) * | 2021-09-01 | 2024-07-10 | Linde GmbH | Plant and process for low-temperature fractionation of air |
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SU851034A1 (en) * | 1979-09-04 | 1981-07-30 | Предприятие П/Я А-3605 | Unit for air separation |
RU2100717C1 (en) * | 1994-06-30 | 1997-12-27 | Открытое акционерное общество криогенного машиностроения | Method of production of nitrogen under pressure |
US5966967A (en) * | 1998-01-22 | 1999-10-19 | Air Products And Chemicals, Inc. | Efficient process to produce oxygen |
US6134915A (en) * | 1999-03-30 | 2000-10-24 | The Boc Group, Inc. | Distillation column arrangement for air separation plant |
US6272883B2 (en) * | 1997-04-11 | 2001-08-14 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Plant for separation of a gas mixture by distillation |
Family Cites Families (11)
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DE2633272A1 (en) * | 1976-07-23 | 1978-01-26 | Linde Ag | Dual-pressure rectification using two columns - the first having the high-pressure stage and part of the low-pressure |
FR2761897B1 (en) * | 1997-04-11 | 1999-05-14 | Air Liquide | INSTALLATION FOR SEPARATING A GAS MIXTURE BY DISTILLATION |
FR2774752B1 (en) * | 1998-02-06 | 2000-06-16 | Air Liquide | AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX |
FR2778233B1 (en) * | 1998-04-30 | 2000-06-02 | Air Liquide | AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX |
FR2778234B1 (en) | 1998-04-30 | 2000-06-02 | Air Liquide | AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX |
DE60031256T2 (en) * | 1999-04-05 | 2007-05-24 | L'Air Liquide, S.A. a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude | VARIABLE LOAD DEVICE AND CORRESPONDING METHOD FOR SEPARATING A USE MIXTURE |
FR2780147B1 (en) * | 1999-06-29 | 2001-01-05 | Air Liquide | AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX |
FR2807150B1 (en) * | 2000-04-04 | 2002-10-18 | Air Liquide | PROCESS AND APPARATUS FOR PRODUCING OXYGEN ENRICHED FLUID BY CRYOGENIC DISTILLATION |
DE10113791A1 (en) * | 2001-03-21 | 2002-10-17 | Linde Ag | Recovery of argon comprises using air decomposition system consisting of high pressure column, low pressure column and middle pressure column |
US7296437B2 (en) * | 2002-10-08 | 2007-11-20 | L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for separating air by cryogenic distillation and installation for implementing this process |
JP2004251569A (en) * | 2003-02-21 | 2004-09-09 | Hitachi Ltd | Cryogenic air separator |
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2007
- 2007-03-12 FR FR0753767A patent/FR2913758B3/en not_active Expired - Lifetime
- 2007-06-26 FR FR0756022A patent/FR2918162A1/en active Pending
-
2008
- 2008-02-20 BR BRPI0807965-0A2A patent/BRPI0807965A2/en not_active IP Right Cessation
- 2008-02-20 WO PCT/FR2008/050280 patent/WO2008110732A2/en active Application Filing
- 2008-02-20 CN CN2008800079868A patent/CN102016467A/en active Pending
- 2008-02-20 RU RU2009137584/06A patent/RU2479805C2/en not_active IP Right Cessation
- 2008-02-20 JP JP2009553182A patent/JP2010521646A/en active Pending
- 2008-02-20 PL PL08762127T patent/PL2132509T3/en unknown
- 2008-02-20 TR TR2018/10844T patent/TR201810844T4/en unknown
- 2008-02-20 US US12/530,833 patent/US20100139318A1/en not_active Abandoned
- 2008-02-20 EP EP08762127.2A patent/EP2132509B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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SU851034A1 (en) * | 1979-09-04 | 1981-07-30 | Предприятие П/Я А-3605 | Unit for air separation |
RU2100717C1 (en) * | 1994-06-30 | 1997-12-27 | Открытое акционерное общество криогенного машиностроения | Method of production of nitrogen under pressure |
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Also Published As
Publication number | Publication date |
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FR2918162A1 (en) | 2009-01-02 |
BRPI0807965A2 (en) | 2014-06-10 |
FR2913758A1 (en) | 2008-09-19 |
WO2008110732A2 (en) | 2008-09-18 |
RU2009137584A (en) | 2011-04-20 |
EP2132509B1 (en) | 2018-06-27 |
JP2010521646A (en) | 2010-06-24 |
EP2132509A2 (en) | 2009-12-16 |
TR201810844T4 (en) | 2018-08-27 |
US20100139318A1 (en) | 2010-06-10 |
FR2913758B3 (en) | 2009-11-13 |
PL2132509T3 (en) | 2018-11-30 |
CN102016467A (en) | 2011-04-13 |
WO2008110732A3 (en) | 2010-03-11 |
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