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EP1309827B1 - Installation de decomposition de l'air a basse temperature - Google Patents

Installation de decomposition de l'air a basse temperature Download PDF

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Publication number
EP1309827B1
EP1309827B1 EP01974179A EP01974179A EP1309827B1 EP 1309827 B1 EP1309827 B1 EP 1309827B1 EP 01974179 A EP01974179 A EP 01974179A EP 01974179 A EP01974179 A EP 01974179A EP 1309827 B1 EP1309827 B1 EP 1309827B1
Authority
EP
European Patent Office
Prior art keywords
column
box
low
pressure column
temperature air
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.)
Expired - Lifetime
Application number
EP01974179A
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German (de)
English (en)
Other versions
EP1309827A1 (fr
Inventor
Stefan Möller
Wolfgang Bader
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
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Filing date
Publication date
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Publication of EP1309827A1 publication Critical patent/EP1309827A1/fr
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F25J3/04406—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
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04703—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser being arranged in more than one vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04721—Producing pure argon, e.g. recovered from a crude argon column
    • F25J3/04727—Producing pure argon, e.g. recovered from a crude argon column using an auxiliary pure argon column for nitrogen rejection
    • 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
    • F25J3/04872—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
    • 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
    • F25J2235/58—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being argon or crude argon
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/50—Processes or apparatus involving steps for recycling of process streams the recycled stream being oxygen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/902—Apparatus
    • Y10S62/905—Column
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/902—Apparatus
    • Y10S62/911—Portable

Definitions

  • the invention relates to a cryogenic air separation plant with several modules, the at least one heat exchanger unit, a pressure column and a Low pressure column include, as well as with the respective modules associated Accessories and with at least two cold boxes in which the modules and / or the Accessories are arranged.
  • a two-column apparatus for the recovery of argon by cryogenic rectification of the low pressure column a two-column apparatus at an intermediate point a substantially oxygen, Taken from nitrogen and argon fraction and a crude argon column fed. The argon is then freed of oxygen in the crude argon column and taken at the top of the crude argon column as an oxygen-free product.
  • the Crude argon column is usually arranged so that its bottom is about on Height of Argonabstichs the low pressure column is located.
  • the crude argon column has a very large height, so that the erection and orientation of the crude argon column and the column surrounding thermally insulating sheath, a so-called cold box, very becomes expensive.
  • EP-A-0 628 777 it is therefore proposed to use the crude argon column split into two partial columns, with the first column of the height of the Argon tap extends up to the top of the low-pressure column and the size the second part column is selected according to the process conditions.
  • EP-A-0 870-524 uses this approach and proposes a Cryogenic air separation plant before, in which the crude argon column is also divided and the columns are arranged so that the coldbox surrounding the columns completed as completely as possible.
  • cryogenic air separation plants of this type are not transportable and must therefore be mounted on site. Also at one Division of the plant into a rectification module, which essentially comprises the Oxygen-nitrogen separation takes place, and in an argon module, the soft Including crude argon column with their accessories, the two cold boxes are often so great that these are no longer transportable. A production in the manufacturing plant is not possible.
  • the object of the present invention is to provide a cryogenic air separation plant develop that is as easy to manufacture as possible
  • the components of the Cryogenic air separation plant conceptual in modules, accessories and the Piping divided.
  • the modules include all components that are one of the for the Cryogenic air separation allow specific functions.
  • To the thermally too Insulating modules include in particular machines such as e.g. Expansion machines and cryogenic pumps, heat exchange devices, such as e.g. Main heat exchanger, main condenser, top condensers and Secondary condensers, and apparatus for separating the air, such as countercurrents and Rectification columns.
  • Accessories include in particular the instrumentation, fittings, Measuring devices, e.g. for flow measurements and analysis, measuring lines as well as Inspection facilities and similar constructive devices.
  • the pipelines are not used in this description unless explicitly stated otherwise counted to the accessories, but considered separately.
  • Coldbox is understood to mean a container, a casing or a casing, which is suitable, one or more components, in particular modules, one Low-temperature air separation plant record and thermally against the Isolate environment.
  • the coldbox is either thermally insulated itself or can filled with suitable thermal insulation material.
  • the modules to be accommodated in cold boxes i. the thermally insulated modules, divided into at least two cold boxes.
  • cold boxes i. the thermally insulated modules
  • a separate coldbox be provided for the two partial columns of a split crude argon column.
  • Pressure column and low pressure column can in be housed another coldbox or also on two cold boxes be split. In this way, the coldbox sizes can be reduced, thereby the transport is facilitated.
  • the division of the modules on the cold boxes is carried out according to the invention so that at least one coldbox is kept as simple as possible.
  • a coldbox is designed as a secondary box in which essentially only modules without their accessories are located.
  • the secondary box is one Main box assigned to the majority of the accessories in the Maubox arranged modules includes.
  • the secondary box can be very simple be executed and is easy and inexpensive to manufacture.
  • the main box is preferably designed so that it not only the accessories of the associated Maubox includes, but even includes one of the modules. It is but in some cases also cheap, in the main box only the accessories of Accommodate modules of the secondary boxes.
  • the invention is particularly suitable for a cryogenic tuft removal application having a Rohargonrektberichtsaku, which a first and a second Partial column, a Rohargontechnisch, from the upper part of the first column in the lower portion of the second part column leads, means for returning Return liquid from the sump of the second column to the upper part of the first column Partial column and an argon head condenser whose condensation side with the Upper portion of the second part column is connected comprises.
  • the crude argon column is divided into two at such a plant to the overall height to reduce.
  • the two partial columns are housed in different cold boxes.
  • the first part of the column has no head capacitor itself, but is from the Sump of the second part column supplied with the necessary return liquid.
  • the first partial column therefore essentially has only connections for the supply and discharge of Liquid and gas to the low pressure column and the second part column on.
  • the accessories to the first part column such. Bequests, measuring and analyzing equipment, not in the first Partial column containing coldbox, but mainly in the coldbox for the second Partial column arranged.
  • the coldbox with the first part column can thus be very simple be carried out and represents in the context of the present invention, the secondary box.
  • the second coldbox contains as a main box, the second part column, the Argon head condenser and the accessories for both partial columns.
  • the Rohargonrekt Interventionsaku can thus be divided into two modules, both do not exceed the permissible transport dimensions, with the first module is particularly easy to prefabricate.
  • the Rohargonrekthuisaku is also in two partial columns divided.
  • both partial columns are each arranged in a secondary box.
  • a first side box comprises the first part column, a second side box the second column with the argon head condenser.
  • a main box the most preferred also the Piping of the two partial columns includes.
  • the argon rectification unit is provided with a pure argon column, it is cheap to arrange the pure argon column with accessories in the main box.
  • the proportion in the secondary box is mentioned accessories a maximum of 30%, more preferably a maximum of 20%.
  • the piping is located in the secondary box housed module mainly in the associated main box, of Advantage more than 60%, of particular advantage more than 70% and of all particular advantage more than 80% of the piping of the main box are assigned.
  • the main box and the side box cuboid i.e. with a rectangular plan
  • the main box and the side box cuboid i.e. with a rectangular plan
  • it makes the connections to the Boxes and the passages through the walls of boxes are easier to manufacture.
  • the shape of the main box and / or the secondary box adapted the shape of the male in the box modules and / or accessories is. So it is beneficial to have a rectification column that is housed in a secondary box is to be, for example, the first column of a split Rohargonrekttechnik to surround with a cylindrical box.
  • the air separation plant shown in FIG. 1 has a double column rectifier Main condenser 1, pressure column 2 and low pressure column 3 for the recovery of Nitrogen at the top of the low pressure column 3 and oxygen from the bottom of the Low pressure column 3 on.
  • the double column is in common with the Unterkühlungsurgiströmer 4 and other cold components, not shown, such as e.g. cryogenic pumps, housed in several cold boxes, their arrangement will be explained in more detail with reference to FIGS 2 to 6.
  • the argon rectification unit consists of two partial columns 6, 7, which are the crude argon column form a pure argon column 8 and the corresponding top condensers 9, 10th
  • the first part of the column 6 is in the usual way by a line 17 through which a in essential oxygen and argon-containing fraction in the first part of the column. 6 can be fed, connected to the low pressure column 3.
  • the return 18 serves for the return of itself in the bottom of the first part of column 6 accumulating Residual liquid to the low pressure column 3.
  • this return line 18 is a pump 12 for Promotion of the residual liquid provided.
  • the first partial column 6 has no top condenser.
  • the return fluid for this Column 6 is formed by the bottom liquid of the second partial column 7, which by means of a pump 11 is pumped to the head of the sub-column 6.
  • In the head capacitor 9 is Return liquid for the second part 7 of the crude argon column by condensation of Overhead fraction in indirect heat exchange against bottom liquid from the pressure column 2, which is supplied via line 19, generated.
  • the resulting steam is via line 13 returned to the low pressure column 3.
  • excess Bottom liquid is from the top condenser 9 via line 14 in the Low pressure column 3 fed.
  • the head capacitor 10 th the pure argon column 8 supplied with bottoms liquid from the pressure column 2. Waste incurred Steam and excess liquid are supplied via lines 15 and 16 which are in the Lines 13 and 14 open, also passed into the low pressure column 3.
  • the second part of the column 7th containing coldbox 25 is designed as a main box, which is the first part of the column. 6 containing coldbox 24 is assigned as a secondary box.
  • the main box 25 includes in addition to the partial column 7, the argon head condenser 9, the pure argon column 8 and their head capacitor 10. Femer are more than three quarters of the accessories of the first Partial column 6, i. the measuring and control equipment, the fittings and the Inspection facilities, as well as more than three quarters of the casing of the first Partial column arranged in the main box 25.
  • FIG. 2b shows an alternative embodiment in which a common cold box 26 is provided for the pressure column 2 and the low pressure column 3.
  • the cold boxes 24, 25 the two sub-columns 6 and 7 also have the explained with reference to Figure 2a Main box-auxiliary box ratio.
  • the individual cold boxes are interconnected via junction boxes in which For example, the connecting lines extend, connected to each other. It is at all arrangements shown in the figures also advantageous, two or more Coldboxes that need to be connected, right next to each other to connect to each other and to the common wall of coldboxes remove so that a single coldbox is created.
  • the two embodiments of Figure 3a and Figure 3b differ from those Figures 2a and 2b in that the second part of column 7 also in a Secondary box 27 is located.
  • the main box 28 comprises the majority of the Accessories of the two partial columns 6, 7, the pure argon column 8 and the Capacitors 9, 10 and the pure argon column 8. Further, the cold, i. to be isolated Piping of the two Rohargonteilmodule 6, 7 included in the main box 28.
  • the Pressure column 2 and the low pressure column 3 are each in a separate coldbox 22, 23 housed.
  • Figure 3b corresponds substantially to Figure 3a, but with the pressure column 2 and the low pressure column 3, analogous to the embodiment of Figure 2b, in a common Coldbox 26 are located.
  • the argon rectification unit with the two partial columns 6, 7 becomes on two secondary boxes 24, 27 for the partial columns 6, 7 and a main box 28, the corresponding accessories and the piping contains, split.
  • FIGS. 4 to 6 show further embodiments of the invention Concept for the distribution of cold boxes in main and secondary boxes.
  • FIG 4a a cryogenic air separation plant is shown in which the coldbox for the double column consisting of pressure column 2 and low pressure column 3 divided according to the invention.
  • the low pressure column 3 in a Maubox 35 housed.
  • the pressure column 2 with the main capacitor and the Accessories of the low-pressure column 3 is located in the main box 34th Die Rohargonklale is divided and, as already shown in Figure 2, also in two as Main and secondary box running coldboxes 24, 25 arranged. This execution allows the transport of the individual modules with the associated coldboxes.
  • Figure 4b shows a modification of the arrangement of Figure 4a, in which the crude argon column divided and housed in two cold boxes 31, 32, in which the two cold boxes 31, 32 for the first and the second partial column 6, 7 in conventional Are executed, i. E. in which all of the respective sub-column 6, 7 associated accessories are also located in the corresponding Coldbox 31, 32.
  • a common cold box 33 provided for the two partial columns 6, 7 for argon production.
  • the two Partial columns 6, 7 are usually arranged side by side. It has, however also proved to be favorable, the second partial column 7 with the top condenser under the first partial column 6 provide. Since the sump of the first sub-column 6 at the level of Argon deduction from the low pressure column 3 is located in the cold box 33 below the first sub-column 6 space, which is preferably used for the second sub-column 7. To supply the first part of column 6 with return liquid bottoms liquid is made the second part of the column 7 pumped to the head of the first part of the column 6.
  • FIGS. 5a to 5c correspond to the arrangements according to FIGS Figures 4a to 4c, wherein only the main box-Nebenbox-relationship between the Pressure column box and the low pressure column box is reversed.
  • the main capacitor can either with the low pressure column 3 and the accessories of the pressure column. 2 and those of the low-pressure column 3 are arranged in the main box 30 or preferably placed on or above the pressure column 2 and in the secondary box 29th to be built in.
  • FIGS. 6a to 6d show further advantageous variants.
  • FIG 6a is a separate main box 36 for the accessories of the pressure column 2 and the Low pressure column 3 is provided.
  • the pressure column 2 and the low pressure column 3 are In contrast, each housed in a secondary box 29, 35.
  • the secondary box 29 with the pressure column also still the main capacitor integrated.
  • the two partial columns 6, 7 of the crude argon column are also in two over the main box-secondary box principle according to the invention interconnected.
  • FIGS. 6b and 6c show slight modifications of the arrangement according to FIG. 6a which the two partial columns 6, 7 on the one hand in two conventional, not housed according to the invention cold boxes 31, 32 (Figure 6b) housed are to be found on the other hand in a common coldbox 33 ( Figure 6c).
  • Figure 6d an arrangement is shown in which both the pressure 2 and the low-pressure column 3 and the two sub-columns 6, 7 in separate sub-boxes 29, 35, 24, 27 are housed and two main boxes 36, 28 are provided, the on the one hand the secondary boxes 29, 35, on the other hand associated with the secondary boxes 24, 27 are.
  • a single main box with the four secondary boxes 29, 35, 24, 27 is connected.
  • the different figures are supposed to be the kind of for the different modules used cold boxes, i. whether a main box, a secondary box or a conventional cold box is used, clarify. Their arrangement to each other is not necessarily reproduced correctly in the figures.
  • the Coldboxes arranged so that the coldboxes, between which many Pipe connections and other connecting lines run as close as possible stand together. So it is advantageous, for example, the cold box 21 with the Main heat exchanger next to the low pressure column box to arrange and the Pressure column box and the crude argon column box (s) to the low pressure column box to be bordered.
  • the connection of the cold boxes with each other via isolated connection boxes or by joining the affected cold boxes and removing the partition.

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)
  • Sorption Type Refrigeration Machines (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (13)

  1. Installation de fractionnement de l'air à basse température, qui présente plusieurs modules qui comprennent au moins une unité d'échangeur de chaleur, une colonne sous pression et une colonne à basse pression, qui comprend également les accessoires associés à chacun des modules et au moins deux boítes froides dans lesquelles les modules et/ou les accessoires sont agencés, caractérisée en ce qu'au moins une des boítes froides est configurée comme boíte principale (25, 28, 30, 34, 36) et au moins une des boítes froides est configurée comme boíte secondaire (24, 27, 29, 35), la boíte secondaire (24, 27, 29, 35) contenant au moins un des modules (2, 3, 6, 7), les accessoires du module (2, 3, 6, 7) agencé dans la boíte secondaire (24, 27, 29, 35) se trouvant majoritairement dans la boíte principale (25, 28, 30, 34, 36).
  2. Installation de fractionnement d'air à basse température selon la revendication 1, caractérisée en ce qu'au moins un module (2, 3, 7) se trouve dans la boíte principale (25, 30, 34).
  3. Installation de fractionnement d'air à basse température selon la revendication 1, caractérisée en ce qu'aucun module ne se trouve dans la boíte principale (28, 36).
  4. Installation de fractionnement d'air à basse température selon l'une des revendications 1 à 3, caractérisée en ce qu'est prévue une unité de rectification d'argon brut qui contient une première et une seconde colonne partielle (6, 7), une conduite d'argon brut qui va de la région supérieure de la première colonne partielle (6) à la région inférieure de la deuxième colonne partielle (7), des moyens (11) pour assurer le retour du reflux fluide du pied de la deuxième colonne partielle (7) à la région supérieure de la première colonne partielle (6) ainsi qu'un condensateur de tête (9) pour l'argon, dont le côté de condensation est relié à la région supérieure de la deuxième colonne partielle (7), la boíte secondaire (24) contenant la première colonne partielle (6) et la boíte principale (25) contenant la deuxième colonne partielle (7) ainsi que le condensateur de tête (9) pour l'argon et la majeure partie des accessoires de la première colonne partielle (6).
  5. Installation de fractionnement d'air à basse température selon la revendication 4, caractérisée en ce que la boíte principale (25) contient une colonne d'argon pur (8).
  6. Installation de fractionnement d'air à basse température selon l'une des revendications 1 à 3, caractérisée en ce qu'est prévue une unité de rectification d'argon brut qui contient une première et une seconde colonne partielle (6, 7), une conduite d'argon brut qui va de la région supérieure de la première colonne partielle (6) à la région inférieure de la deuxième colonne partielle (7), des moyens (11) pour assurer le retour du reflux fluide du pied de la deuxième colonne partielle (7) à la région supérieure de la première colonne partielle (6) ainsi qu'un condensateur de tête (9) pour l'argon, dont le côté de condensation est relié à la région supérieure de la deuxième colonne partielle (7), la boíte principale (28) contenant la majeure partie des accessoires de l'unité de rectification d'argon brut, la première colonne partielle (6) étant installée dans une première boíte secondaire (24) et la deuxième colonne partielle (7) ainsi que le condensateur de tête (9) pour l'argon étant installés dans une deuxième boíte secondaire (27).
  7. Installation de fractionnement d'air à basse température selon la revendication 6, caractérisée en ce que la deuxième boíte secondaire (27) contient une colonne d'argon pur (8).
  8. Installation de fractionnement d'air à basse température selon l'une des revendications 1 à 7, caractérisée en ce que plus de 60 %, de préférence plus de 70 % et de façon particulièrement préférée plus de 80 % des accessoires se trouvent dans la boíte principale (25, 28, 30, 34, 36).
  9. Installation de fractionnement d'air à basse température selon l'une des revendications 1 à 8, caractérisée en ce que la colonne sous pression (2) et la colonne à basse pression (3) se trouvent chacune dans une des boítes secondaires (29, 35) et la boíte principale (36) ne contient essentiellement que les accessoires de la colonne sous pression (2) et de la colonne à basse pression (3).
  10. Installation de fractionnement d'air à basse température selon l'une des revendications 1 à 8, caractérisée en ce que la colonne à basse pression (3) et la colonne sous pression (2) se trouvent respectivement dans la boíte principale (30) et dans la boíte secondaire (29).
  11. Installation de fractionnement d'air à basse température selon l'une des revendications 1 à 8, caractérisée en ce que la colonne sous pression (2) et la colonne à basse pression (3) se trouvent respectivement dans la boíte principale (34) et la boíte secondaire (35).
  12. Installation de fractionnement d'air à basse température selon l'une des revendications 1 à 11, caractérisée en ce qu'est prévue une boíte secondaire qui contient une unité de rectification d'argon brut.
  13. Installation de fractionnement d'air à basse température selon l'une des revendications 1 à 12, caractérisée en ce que la tubulure associée au module (2, 3, 6, 7) agencé dans la boíte secondaire (24, 29, 35) se trouve majoritairement dans la boíte principale (25, 28, 30, 34, 36).
EP01974179A 2000-08-18 2001-08-13 Installation de decomposition de l'air a basse temperature Expired - Lifetime EP1309827B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01974179A EP1309827B1 (fr) 2000-08-18 2001-08-13 Installation de decomposition de l'air a basse temperature

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE10040391 2000-08-18
DE10040391A DE10040391A1 (de) 2000-08-18 2000-08-18 Tieftemperaturluftzerlegungsanlage
EP00122779A EP1180655A1 (fr) 2000-08-18 2000-10-19 Installation pour la séparation cryogénique de l'air
EP00122779 2000-10-19
PCT/EP2001/009348 WO2002016847A1 (fr) 2000-08-18 2001-08-13 Installation de decomposition de l'air a basse temperature
EP01974179A EP1309827B1 (fr) 2000-08-18 2001-08-13 Installation de decomposition de l'air a basse temperature

Publications (2)

Publication Number Publication Date
EP1309827A1 EP1309827A1 (fr) 2003-05-14
EP1309827B1 true EP1309827B1 (fr) 2005-05-11

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EP00122779A Withdrawn EP1180655A1 (fr) 2000-08-18 2000-10-19 Installation pour la séparation cryogénique de l'air
EP01974179A Expired - Lifetime EP1309827B1 (fr) 2000-08-18 2001-08-13 Installation de decomposition de l'air a basse temperature

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP00122779A Withdrawn EP1180655A1 (fr) 2000-08-18 2000-10-19 Installation pour la séparation cryogénique de l'air

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US (1) US6948337B2 (fr)
EP (2) EP1180655A1 (fr)
JP (1) JP2004535543A (fr)
KR (1) KR100752818B1 (fr)
CN (1) CN1239874C (fr)
AT (1) ATE295520T1 (fr)
AU (1) AU2001293766A1 (fr)
DE (2) DE10040391A1 (fr)
TW (1) TW500908B (fr)
WO (1) WO2002016847A1 (fr)

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GB0307404D0 (en) * 2003-03-31 2003-05-07 Air Prod & Chem Apparatus for cryogenic air distillation
US7284395B2 (en) * 2004-09-02 2007-10-23 Praxair Technology, Inc. Cryogenic air separation plant with reduced liquid drain loss
US7621152B2 (en) * 2006-02-24 2009-11-24 Praxair Technology, Inc. Compact cryogenic plant
FR2946735B1 (fr) * 2009-06-12 2012-07-13 Air Liquide Appareil et procede de separation d'air par distillation cryogenique.
DE102010012920A1 (de) * 2010-03-26 2011-09-29 Linde Aktiengesellschaft Vorrichtung zur Tieftemperaturzerlegung von Luft
DE102012008415A1 (de) * 2012-04-27 2013-10-31 Linde Aktiengesellschaft Transportables Paket mit einer Coldbox, Tieftemperatur-Luftzerlegungsanlage und Verfahren zum Herstellen einer Tieftemperatur-Luftzerlegungsanlage
RU2659698C2 (ru) * 2013-03-06 2018-07-03 Линде Акциенгезелльшафт Установка разделения воздуха, способ получения продукта, содержащего аргон, и способ изготовления установки разделения воздуха
CN104019631B (zh) * 2014-06-26 2016-03-16 莱芜钢铁集团有限公司 一种空气分离装置快速投氩方法
CN104501530B (zh) * 2014-12-25 2017-05-17 杭州杭氧股份有限公司 一种利用多套空分制取的粗氩提取高纯液氩的装置及方法
CN111630335A (zh) * 2018-01-26 2020-09-04 乔治洛德方法研究和开发液化空气有限公司 通过低温蒸馏的空气分离装置
EP3614082A1 (fr) 2018-08-22 2020-02-26 Linde Aktiengesellschaft Installation de séparation d'aire, procédé de séparation d'air à basse température et procédé de fabrication d'une installation de séparation d'aire
EP3614083A1 (fr) 2018-08-22 2020-02-26 Linde Aktiengesellschaft Installation de séparation d'aire, procédé de séparation d'air à basse température au moyen de l'installation de séparation d'aire et procédé de fabrication d'une installation de séparation d'aire
CN109676367A (zh) * 2018-12-28 2019-04-26 乔治洛德方法研究和开发液化空气有限公司 一种热交换器组件及装配所述热交换器组件的方法
FR3116892B1 (fr) * 2020-12-02 2022-12-30 Air Liquide Appareil de séparation d’air par distillation cryogénique

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Also Published As

Publication number Publication date
KR100752818B1 (ko) 2007-08-29
WO2002016847A1 (fr) 2002-02-28
EP1309827A1 (fr) 2003-05-14
DE50106217D1 (de) 2005-06-16
CN1447895A (zh) 2003-10-08
TW500908B (en) 2002-09-01
DE10040391A1 (de) 2002-02-28
US6948337B2 (en) 2005-09-27
EP1180655A1 (fr) 2002-02-20
US20040000166A1 (en) 2004-01-01
CN1239874C (zh) 2006-02-01
AU2001293766A1 (en) 2002-03-04
KR20040002838A (ko) 2004-01-07
JP2004535543A (ja) 2004-11-25
ATE295520T1 (de) 2005-05-15

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