EP2553369A2 - Dispositif pour le fractionnement cryogénique de l'air - Google Patents

Dispositif pour le fractionnement cryogénique de l'air

Info

Publication number
EP2553369A2
EP2553369A2 EP11708993A EP11708993A EP2553369A2 EP 2553369 A2 EP2553369 A2 EP 2553369A2 EP 11708993 A EP11708993 A EP 11708993A EP 11708993 A EP11708993 A EP 11708993A EP 2553369 A2 EP2553369 A2 EP 2553369A2
Authority
EP
European Patent Office
Prior art keywords
column
mixing
heat exchanger
pressure column
mixing column
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.)
Granted
Application number
EP11708993A
Other languages
German (de)
English (en)
Other versions
EP2553369B1 (fr
Inventor
Stefan Lochner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Priority to PL11708993T priority Critical patent/PL2553369T3/pl
Publication of EP2553369A2 publication Critical patent/EP2553369A2/fr
Application granted granted Critical
Publication of EP2553369B1 publication Critical patent/EP2553369B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
    • 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
    • F25J3/04406—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
    • F25J3/04418—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 with thermally overlapping high and low pressure columns
    • 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
    • F25J3/0446—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 the heat generated by mixing two different phases
    • F25J3/04466—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 the heat generated by mixing two different phases for producing oxygen as a mixing column overhead gas by mixing gaseous air feed and liquid oxygen
    • 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.
    • 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
    • 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
    • F25J3/04945—Details of internal structure; insulation and housing of the cold box
    • 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
    • F25J2200/04—Processes or apparatus using separation by rectification in a dual pressure main column system
    • 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
    • F25J2290/40—Vertical layout or arrangement of cold equipments within in the cold box, e.g. columns, condensers, heat exchangers etc.
    • 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 invention relates to a device for the cryogenic separation of air according to the preamble of patent claim 1.
  • the invention has for its object to find an improved arrangement of the mixing column.
  • This object is achieved in that the mixing column and at least one of the two mentioned heat exchangers are arranged in a common coldbox.
  • a coldbox is used for the thermal insulation of plant components (see, for example, Hausen / Linde, Tiefftemperaturtechnik, 1985, in particular pages 490 and 491).
  • a "cold box” is understood here as an insulating casing which has a
  • the insulating effect can be through corresponding configuration of the outer walls and / or be effected by the filling of the gap between system parts and outer walls with an insulating material.
  • a powdery material such as perlite is preferably used.
  • the invention relates in particular to the first two variants, wherein the mixing column is preferably arranged above the subcooling countercurrent.
  • a container for example a column or a heat exchanger
  • the space, otherwise unused, above the heat exchanger is conveniently used by placing the mixing column there. This results in a particularly compact device.
  • the high-pressure column, the low-pressure column and the main heat exchanger can in principle be arranged in the invention in one or more further cold boxes.
  • they each have their own coldbox, in the other they housed in a common coldbox with mixing column and subcooling countercurrent (with or without main heat exchanger), which in particular encloses all the cold parts of the device, in this case also the main heat exchanger.
  • the subcooler countercurrent serves to subcool one or more liquids from one of the columns of the nitrogen-oxygen separation distillation column system or the mixing column in countercurrent to one or more cold gaseous streams, typically from the low pressure column to warm.
  • a supercooling countercurrent serves to remove liquid streams boiling at a higher pressure column (e.g.
  • Mixing column is passed through the supercooling countercurrent, this is heated inversely to get as close to the boiling point below the - regularly higher - pressure of the mixing column.
  • the cold streams are warmed up with the thawing temperature from the lower pressure columns. Since these streams go into the main heat exchanger, the process air in the high-pressure column is also warmer, that is, it is closer to the tau temperature. The proportion of pre-liquefied air is minimized.
  • the space above this heat exchanger remains largely unused, not so in the embodiment of the invention described here.
  • the subcooling countercurrent is realized by a separate component from the main heat exchanger.
  • the mixing column can by suitable fasteners on the
  • the mixing column is placed on a rack, optionally with additional
  • This frame is preferably supported on the bottom of the coldbox.
  • the double column of high pressure column and Low pressure column is arranged in the same coldbox, it may be particularly advantageous if the mixing column is supported on the double column.
  • a common coldbox encloses mixing column, subcooling countercurrent, high pressure column and low pressure column.
  • the coldbox preferably has a rectangular base.
  • the main heat exchanger can in principle also be accommodated in the common coldbox. Alternatively, it is placed in a second, separate cold box, especially if it can be prefabricated and then largely completely on the
  • High-pressure column and low-pressure column are preferably designed as a double column.
  • first and last-mentioned variants can be realized so that the mixing column and the main heat exchanger are arranged in the common cold box. It is advantageous if a first coldbox encloses the main heat exchanger and the mixing column. A second cold box then contains the high pressure column and the low pressure column of the distillation column system for nitrogen-oxygen separation, which are preferably arranged in the form of a classic double column. In this variant of the invention, the supercooling countercurrent in the
  • Main heat exchanger to be integrated. For small systems, all cold parts mentioned can be arranged in a single cold box. This can be useful even for very large plants, where the cold box is assembled on site.
  • a first coldbox surrounds the main heat exchanger and the mixing column and a second coldbox surrounds the high-pressure column and the low-pressure column.
  • Figure 2 shows the first embodiment in a vertical cross-sectional view
  • Figure 3 shows a second embodiment of the invention with the arrangement of
  • FIG. 4 shows the second exemplary embodiment in vertical cross-section
  • a mixing column 1 and a subcooling countercurrent 2 are arranged in a common coldbox 3.
  • High-pressure column and low-pressure column of the distillation column system for nitrogen-oxygen separation are realized as a classic double column 5 and also housed in the cold box 3.
  • Figure 2 shows the same arrangement in another view.
  • the cold box 3 From the cold box 3, only the lateral outer walls are shown in both drawings. Details such as piping, valves and the interior of the apparatus 1, 2, 5 are not shown.
  • the space between the apparatus 1, 2, 5 and the outer wall of the cold box 3 is filled with perlite.
  • the underside of the coldbox 4 is formed by a separate outer wall.
  • the double column 5 is supported by a frame, not shown, on the bottom 4 of the cold box 3.
  • a main heat exchanger is housed in the first embodiment in a separate coldbox (not shown in Figures 1 and 2).
  • the two dashed circles 1a and 1b in FIG. 1 represent two modifications of the first exemplary embodiment, in which the mixing column is arranged offset to the supercooling countercurrent 2. However, the mixing column is also above the
  • Subcooling countercurrent arranged (analogous to Figure 2); In order to reach this geodetic height, it must be mounted on its own frame.
  • FIG. 4 shows the same arrangement in FIG different view. From the cold box 3, only the lateral outer walls are shown in both drawings. Details such as piping, valves and the interior of the apparatus 1, 6 are not shown. The space between the apparatus 1, 6 and the outer wall of the cold box 3 is filled with perlite. The underside of the coldbox 4 can be formed by a separate outer wall or a foundation. The two devices 1, 6 are each supported by a frame.
  • a subcooling countercurrent and the distillation column system for nitrogen-oxygen separation are housed in the second embodiment in one or more separate cold boxes (not shown in Figures 3 and 4).

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

Le dispositif sert au fractionnement cryogénique de l'air. Il présente les caractéristiques suivantes : un échangeur de chaleur principal et un échangeur à froid à contre-courant (2); un système de colonnes de distillation pour la séparation azote-oxygène (5), qui présente une colonne de haute pression et une colonne de basse pression; une colonne de mélange (1); des moyens pour l'introduction d'air d'alimentation via l'échangeur de chaleur principal dans la colonne de haute pression et dans la colonne de mélange; une conduite d'oxygène liquide pour l'introduction d'oxygène liquide provenant de la colonne de basse pression dans la zone supérieure de la colonne de mélange; une conduite de produit oxygène pour l'enlèvement de gaz oxygène de la zone supérieure de la colonne de mélange par l'échangeur de chaleur principal. La colonne de mélange (1) et au moins l'un des deux échangeurs de chaleur (2, 6) cités sont disposés dans une boîte froide (3) commune.
EP11708993.8A 2010-03-26 2011-03-01 Dispositif pour le fractionnement cryogénique de l'air Active EP2553369B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11708993T PL2553369T3 (pl) 2010-03-26 2011-03-01 Urządzenie do niskotemperaturowego rozkładu powietrza

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010012920A DE102010012920A1 (de) 2010-03-26 2010-03-26 Vorrichtung zur Tieftemperaturzerlegung von Luft
PCT/EP2011/001004 WO2011116871A2 (fr) 2010-03-26 2011-03-01 Dispositif pour le fractionnement cryogénique de l'air

Publications (2)

Publication Number Publication Date
EP2553369A2 true EP2553369A2 (fr) 2013-02-06
EP2553369B1 EP2553369B1 (fr) 2019-09-18

Family

ID=44585991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11708993.8A Active EP2553369B1 (fr) 2010-03-26 2011-03-01 Dispositif pour le fractionnement cryogénique de l'air

Country Status (5)

Country Link
US (2) US20130192300A1 (fr)
EP (1) EP2553369B1 (fr)
DE (1) DE102010012920A1 (fr)
PL (1) PL2553369T3 (fr)
WO (1) WO2011116871A2 (fr)

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EP2553370B1 (fr) * 2010-03-26 2019-05-15 Linde Aktiengesellschaft Dispositif pour la séparation cryogénique d'air
DE102012006484A1 (de) * 2012-03-29 2013-10-02 Linde Aktiengesellschaft Transportables Paket mit einer Coldbox und Verfahren zum Herstellen einer Tieftemperatur-Luftzerlegungsanlage
FR2995672B1 (fr) * 2012-09-19 2014-10-03 Air Liquide Echangeur de chaleur et procede d'installation d'une unite de separation de gaz comprenant de tels echangeurs de chaleur
US10145514B2 (en) * 2013-11-18 2018-12-04 Man Energy Solutions Se Cold-box system and method for power management aboard ships
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Also Published As

Publication number Publication date
EP2553369B1 (fr) 2019-09-18
US20130192300A1 (en) 2013-08-01
WO2011116871A3 (fr) 2012-08-30
US9170048B2 (en) 2015-10-27
PL2553369T3 (pl) 2020-03-31
WO2011116871A2 (fr) 2011-09-29
US20130086942A1 (en) 2013-04-11
DE102010012920A1 (de) 2011-09-29

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