EP1015828A1 - Installation pour la decomposition a basse temperature de l'air - Google Patents

Installation pour la decomposition a basse temperature de l'air

Info

Publication number
EP1015828A1
EP1015828A1 EP98948835A EP98948835A EP1015828A1 EP 1015828 A1 EP1015828 A1 EP 1015828A1 EP 98948835 A EP98948835 A EP 98948835A EP 98948835 A EP98948835 A EP 98948835A EP 1015828 A1 EP1015828 A1 EP 1015828A1
Authority
EP
European Patent Office
Prior art keywords
rectification column
heat exchanger
insulating jacket
space
oxygen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98948835A
Other languages
German (de)
English (en)
Inventor
Klaus-Peter Walter
Bernd Holling
Theo Sentis
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim 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 Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of EP1015828A1 publication Critical patent/EP1015828A1/fr
Withdrawn legal-status Critical Current

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
    • F25J3/04763—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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04254—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using the cold stored in external cryogenic fluids
    • 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
    • F25J3/044—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 single pressure main column system only
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/42—Nitrogen
    • 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
    • F25J2290/62—Details of storing a fluid in a tank

Definitions

  • the invention relates to a plant for the low-temperature separation of air, with at least one rectification column, which is connected to an air line for supplying separation air, to a nitrogen line to withdraw a nitrogen fraction, to an oxygen line to withdraw an oxygen fraction, and is surrounded by at least one insulating jacket, one limited evacuated isolation space through which the cables are led to the rectification column.
  • Plants for the low-temperature separation of air essentially consist of one or more rectification columns, the function of which is to break down the air, which has been cooled down to approx. Minus 170 ° C, into its components.
  • the dismantling can take place in a rectification column.
  • the oxygen-rich fraction is drawn off liquid in the bottom of the column and evaporated in the condenser.
  • gaseous pure nitrogen is removed to obtain it as a product and a second part is liquefied in the condenser.
  • liquid nitrogen is fed into the column from a storage tank.
  • the storage tank is fed with liquid nitrogen from an external source.
  • Storage tank and rectification column are arranged side by side.
  • the storage tank for liquid nitrogen is insulated by a vacuum container which surrounds the outer shell of the storage container and the insulation space formed between the inner and outer container is evacuated.
  • the rectification column is usually installed in a sheet metal jacket, after which the space left is filled with insulating material.
  • Rectification column negatively affected with regard to the process flow.
  • the components arranged in the inner container, including the rectification column, are not isolated.
  • the invention has for its object a system for
  • This object is achieved in that at least the rectification column is arranged in the evacuated isolation space.
  • the invention enables a much better heat balance of the air separation plant, since the rectification column is surrounded by an evacuated isolation space, which vacuum-insulates the different temperature gradients of the rectification column and the components connected to the rectification column and the components arranged in the isolation space.
  • the vacuum on the one hand prevents the heat flow from the environment into the isolation room and on the other hand prevents the heat flow through conduction from the higher temperature components to the lower temperature components within the isolation room.
  • the vacuum insulation keeps the cold losses through environmental and process influences very small. Due to the storage container for the cryogenic liquefied gas located next to the "cold box", there is one simple adaptation of the required cryogenic liquefied gas quantity to the process parameters of the respective plant for the low-temperature separation of air possible.
  • the isolation space is filled with an insulating material, which is preferably pearlite with a bulk density between 40 to 80 kg / m 3 .
  • an insulating material which is preferably pearlite with a bulk density between 40 to 80 kg / m 3 .
  • the thermal conductivity of the perlite in a vacuum is approximately> 0.002 W / mk at minus 170 ° C.
  • the rectification column is arranged in the powder vacuum-insulated isolation space.
  • the powder-vacuum-insulated isolation room isolates the individual temperature ranges which arise due to the process, also within the isolation room, in such a way that heat flow is excluded.
  • the rectification column has an approximately 6 ° C lower temperature, namely -176 ° C, in its top area due to the physically determined boiling temperatures of the cryogenic liquids than in its bottom area.
  • the temperatures necessary for the process sequence do not influence one another.
  • the amount of cold to be generated can be significantly reduced by the insulation.
  • FIG. 1 For example the heat exchanger in which the decomposition air is cooled against product flows, or also regulating and control fittings or further columns.
  • An optimized heat balance of the heat exchanger can be achieved within the insulation space by placing the heat exchanger on the side into which the decomposition air entering and leaving the product streams, which is at a temperature level of approximately plus 10 ° C, inclined towards the insulating jacket and thus located in the immediate vicinity of the warmer insulating jacket, while the separation air outlet and the product stream inlet are located near the rectification column, so that the side of the heat exchanger lying at a temperature level of approximately minus 170 ° C is inclined to the rectification column lying at approximately the same or similar temperature level. Due to this arrangement, which takes into account the temperature gradients of the heat exchanger, with regard to the temperature distribution in the vacuum- or powder-vacuum-insulated insulation space, the heat balance of the system is due to the insulation and the
  • control valve for example the valve arranged in the oxygen-rich liquid fraction
  • the control valve can be arranged within the isolation room without having to do without an adjustment from outside the "cold box". This prevents further cold losses.
  • Rectification column and heat exchanger are advantageously clamped in the insulating jacket via flexible or elastic rope-shaped elements, such as ropes, chains and the like. Only the forces occurring perpendicular to the longitudinal direction of the rectification column are absorbed by bearings which are attached to the insulating jacket. The rope tensioning is next to a simpler one
  • Alignment of the rectification column for example, with respect to the other components, such as pipes and the like, can further improve the heat balance of the system, since only the bearings conduct heat via the insulating jacket allow.
  • the bearings are arranged between the bearing and the inner surface of the insulating jacket as intermediate layers by means of insulating materials, such as glass fiber reinforced plastic GRP.
  • the rope tension absorbs the thermal tension in the hot and cold condition of the system.
  • FIG. 1 is a schematic embodiment of the invention
  • FIG. 1 shows an embodiment for the arrangement of the heat exchanger
  • Figure 3 shows an embodiment of an arranged in the isolation room
  • FIG. 1 The parts of the plant for the low-temperature extraction of air which are only essential for the invention are shown schematically in FIG.
  • the system essentially consists of a liquefied petroleum gas container 10, a rectification column 15 with a top condenser 16 and a heat exchanger 17.
  • the figure is not to scale, a rectifying column 15 is considerably higher in relation to the liquefied petroleum gas container 10 than that shown.
  • the liquid gas container 10 consists in the usual way of an inner container 12 and an outer container 13, the space 14 is vacuum insulated. Rectification column 15 with top condenser 16 and heat exchanger 17 are surrounded by an insulating jacket 18.
  • the insulating jacket consists of unalloyed structural steel and encloses rectification column 15
  • Two openings 19, 20 are provided in the insulating jacket 18.
  • the opening 19 is connected to a vacuum pump 21 and the opening 20 is connected to a pearlite container 22.
  • a vacuum of 100 mbar is generated via the vacuum pump 21 in the insulation space 23 surrounded by the insulating jacket 18.
  • the negative pressure thus created in the insulation space 23 sucks the pearlite from the pearlite container 22 into the insulation space 23 until it has filled all the cavities.
  • the perlites have a density of> 1, 2 x bulk density in the vacuum of the insulation space 23 and surround the rectification column 15 with the top condenser 16, the heat exchanger 17 and all other components arranged in the insulation space 23, such as pipes, control fittings and the like.
  • Bearings 24 designed as feet are provided on the insulating jacket 18, which support the rectification column 15 and which absorb the weight forces of the rectification column.
  • the rectification column is braced laterally with ropes 25, 26 over its longitudinal extent. It goes without saying that other rope-like elements such as chains and the like can be used for bracing the rectification column.
  • the rectification column is tensioned at least on three sides (120 °) with ropes that are adjustable in length.
  • the ropes 25, 26 are connected to the rectifying column by means of clamps 51, which surround the rectifying column and allow movement thereof, and to the insulating jacket 18 via bearings 27.
  • the heat exchanger 17 is arranged, to which compressed and cleaned air is supplied via line 28. The cold air is blown into the lower region of the rectification column 15.
  • the rectification column 15 is operated under a pressure of 4.5 to 12 bar, preferably about 6 bar. In the exemplary embodiment, it is equipped with two sections 29, 30 of ordered packings or sieve trays. A liquid collector 31, 32 is provided above each of the pack sections 29, 30.
  • An oxygen-enriched bottom liquid can be removed via an oxygen line 33.
  • a nitrogen line 34 discharges gaseous nitrogen as a product through the heat exchanger 17.
  • a first feed line 35 opens into the upper area of the rectification column 15, specifically directly into the upper liquid collector 31. It serves for the supply and removal of liquid nitrogen and connects the interior of the rectification column 15 and nitrogen tank 10.
  • a top condenser 16 serves to liquefy nitrogen at the top of the rectification column 15.
  • the passages indicated in the drawing are open to the interior of the rectification column and thus form the nitrogen passages.
  • Oxygen-enriched liquid is present in the exterior of the passages and is supplied via the oxygen line 33. It evaporates in direct heat exchange with condensed nitrogen. The evaporated fraction is discharged via an oxygen product line 36 and heated in the heat exchanger 17 against decomposition air 28.
  • the heat exchanger 17 is fastened to the insulating jacket 18 with two support brackets 37.
  • the support brackets are assigned to the warm end (+ 10 ° C) of the heat exchanger 17 and bear the vertical loads from it.
  • the heat exchanger 17 is arranged in the insulation space so that the oxygen product inlet 38 is further away from the insulating jacket than that
  • Oxygen product outlet 39 Because the heat exchanger 17 is inclined at an angle between 3 and 10 degrees, preferably at an angle of 5 degrees with its cold end (approx. - 170 ° C.) towards the rectification column, the cooling requirement is reduced, since that warm end of the warmer insulating jacket 18 and the cold end of the heat exchanger is assigned to the rectification column.
  • the attachment and alignment of the cold end of the heat exchanger 17 takes place via rope-shaped elements 40, 41, which are designed as strain relief.
  • the rope-shaped elements 40, 41 are fastened to the insulating jacket 18 by means of clamps 50.
  • valve 42 which is arranged in the oxygen line 33.
  • valve 42 is arranged inside the insulation space 23 and is powder-vacuum insulated.
  • the actuating device 44 is, for example, a control valve spindle through which the control device 44 is also vacuum-insulated Insulating jacket 18 guided to the outside and connected to a drive 45 so that the valve is adjustable from the outside.

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

L'invention concerne une installation pour la décomposition à basse température de l'air, qui comprend au moins une colonne de rectification. Pour améliorer le bilan thermique de cette installation, on a disposé la colonne de rectification (15) dans une chambre d'isolation (23) dans laquelle on a fait le vide.
EP98948835A 1997-08-28 1998-08-17 Installation pour la decomposition a basse temperature de l'air Withdrawn EP1015828A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19737521 1997-08-28
DE1997137521 DE19737521A1 (de) 1997-08-28 1997-08-28 Anlage zur Tieftemperaturzerlegung von Luft
PCT/EP1998/005181 WO1999011990A1 (fr) 1997-08-28 1998-08-17 Installation pour la decomposition a basse temperature de l'air

Publications (1)

Publication Number Publication Date
EP1015828A1 true EP1015828A1 (fr) 2000-07-05

Family

ID=7840454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98948835A Withdrawn EP1015828A1 (fr) 1997-08-28 1998-08-17 Installation pour la decomposition a basse temperature de l'air

Country Status (3)

Country Link
EP (1) EP1015828A1 (fr)
DE (1) DE19737521A1 (fr)
WO (1) WO1999011990A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19912155C5 (de) * 1999-03-18 2005-09-01 Air Liquide Deutschland Gmbh Kryogener vakuumisolierter Sauerstoff-Generator
DE19920312A1 (de) * 1999-05-03 2000-11-09 Linde Ag Verfahren und Vorrichtung zum Verflüssigen eines Kohlenwasserstoff-reichen Stromes
DE10110704A1 (de) 2001-03-06 2002-09-12 Linde Ag Wärmetauscher
US7340921B2 (en) * 2004-10-25 2008-03-11 L'Air Liquide - Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Cold box and cryogenic plant including a cold box
AU2014370264B2 (en) * 2013-12-27 2019-03-28 Conocophillips Company Conduit seal assembly
FR3134878B1 (fr) * 2022-04-26 2024-05-10 Fives Cryo Boite froide pour hydrogene liquide

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130561A (en) * 1961-06-30 1964-04-28 Nat Res Corp Insulation device
FR2668256B1 (fr) * 1990-10-18 1992-12-11 Air Liquide Procede de reglage de la verticalite d'un element dispose dans une enveloppe fermee et ensemble pour la mise en óoeuvre de ce procede.
DE4135302A1 (de) * 1991-10-25 1993-04-29 Linde Ag Anlage zur tieftemperaturzerlegung von luft
FR2692663B1 (fr) * 1992-06-17 1994-08-19 Air Liquide Procédé de construction d'une unité cryogénique de séparation de gaz, unité cryogénique, sous-ensemble et ensemble transportable pour la construction d'une telle unité.
FR2695714B1 (fr) * 1992-09-16 1994-10-28 Maurice Grenier Installation de traitement cryogénique, notamment de distillation d'air.
FR2699992B1 (fr) * 1992-12-30 1995-02-10 Air Liquide Procédé et installation de production d'oxygène gazeux sous pression.
US5617742A (en) * 1996-04-30 1997-04-08 The Boc Group, Inc. Distillation apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9911990A1 *

Also Published As

Publication number Publication date
WO1999011990A1 (fr) 1999-03-11
DE19737521A1 (de) 1999-03-04

Similar Documents

Publication Publication Date Title
DE19904526B4 (de) Luftdestillationsanlage und zugehörige Kältebox
DE69921877T2 (de) Verfahren zur Abgabe eines dampfförmigen Produktes an einen Verwendungsort
EP1666823A1 (fr) Installation pour la séparation cryogénique d'un mélange gazeux en particulier d'air
EP0538857B1 (fr) Installation pour la séparation à basse température
DE1951666A1 (de) Vorrichtung zur Ausfuehrung eines kryogenischen Prozesses
DE2051476A1 (de) Verfahren zur Herstellung von gas formigem und/oder flüssigem Stick stoff und Anlage zur Durchfuhrung dieses Verfahrens
DE19507981A1 (de) Verfahren zum Wiederanfahren einer Hilfskolonne zum Trennen von Argon/Sauerstoff durch Destillation und entsprechende Anlage
DE69814792T2 (de) Verfahren zur Installation einer kryogenischen Anlage mit vormontierten Bauteilen
DE3107151C2 (de) Anlage zum Verflüssigen und Zerlegen von Luft
DE1949609C3 (de) Kondensatorverdampfer für einen Doppelsäulenrektifikator
WO1996002614A1 (fr) Procede d'augmentation de la teneur en methane d'un gaz de mine
DE1012939B (de) Verfahren zum Zerlegen von Luft bei niedriger Temperatur
WO1999011990A1 (fr) Installation pour la decomposition a basse temperature de l'air
DE19919587B4 (de) Luftdestillationsanlage und Kältebox
WO2020038608A1 (fr) Système de séparation d'air, procédé de séparation d'air à basse température et procédé de construction d'une installation de séparation d'air
DE69909288T2 (de) Luftzerlegungsanlage und deren kühlbox
WO2019110146A1 (fr) Récipient de transport muni d'un bouclier thermique pouvant être refroidi
EP1015827B1 (fr) Installation pour la decomposition a basse temperature de l'air
DE69909161T2 (de) Tieftemperaturrektifikationsvorrichtung mit seriellen Säulen zur hochreinen Stickstoffherstellung
DE10051141B4 (de) Verfahren zur Herstellung einer Coldbox, sowie Coldbox nach diesem Verfahren und Luftdestillationsanlage mit einer solchen Coldbox
DE19620653C1 (de) Verfahren und Vorrichtung zum getrennten Speichern von wenigstens zwei unterschiedlichen, tiefsiedenden verflüssigten Gasen
DE10061908A1 (de) Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft
DE966655C (de) Verfahren zur Regelung des Dampfdruckes in Fluessiggas-Behaeltern
DE3327428C2 (de) Vorrichtung zum Rückkondensieren der Verdampfungsverluste eines verflüssigten Gases
DE202778C (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000328

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI SE

17Q First examination report despatched

Effective date: 20011010

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MESSER GRIESHEIM GMBH

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20021217