FR2879595A1 - Integration process of de-nitrogenating carbon monoxide on a cold box, comprises connecting a cold box to piping, cutting the end of the expansion loop, treating the impure monoxide gas in a distilling column and recycling the purified gas - Google Patents

Integration process of de-nitrogenating carbon monoxide on a cold box, comprises connecting a cold box to piping, cutting the end of the expansion loop, treating the impure monoxide gas in a distilling column and recycling the purified gas Download PDF

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Publication number
FR2879595A1
FR2879595A1 FR0650270A FR0650270A FR2879595A1 FR 2879595 A1 FR2879595 A1 FR 2879595A1 FR 0650270 A FR0650270 A FR 0650270A FR 0650270 A FR0650270 A FR 0650270A FR 2879595 A1 FR2879595 A1 FR 2879595A1
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France
Prior art keywords
cold box
carbon monoxide
column
piping
gas
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Withdrawn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
FR0650270A
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French (fr)
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FR2879595A3 (en
Inventor
Arthur Darde
Antoine Hernandez
Guillaume Teixeira
Jean Marc Tsevery
Jean Jacques Talbot
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR0650270A priority Critical patent/FR2879595A1/en
Publication of FR2879595A3 publication Critical patent/FR2879595A3/en
Publication of FR2879595A1 publication Critical patent/FR2879595A1/en
Withdrawn legal-status Critical Current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
    • F25J3/0228—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 characterised by the separated product stream
    • F25J3/0261—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 characterised by the separated product stream separation of carbon monoxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/40—Carbon monoxide
    • 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
    • F25J3/0204—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 characterised by the feed stream
    • F25J3/0223—H2/CO mixtures, i.e. synthesis gas; Water gas or shifted synthesis gas
    • 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
    • F25J3/0228—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 characterised by the separated product stream
    • F25J3/0252—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 characterised by the separated product stream separation of hydrogen
    • 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
    • F25J3/0228—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 characterised by the separated product stream
    • F25J3/0257—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 characterised by the separated product stream separation of nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
    • 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
    • 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
    • F25J2290/80—Retrofitting, revamping or debottlenecking of existing plant
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The cold box (comprises methane scrub column, stripping column, and a carbon monoxide/methane column (CO/CH4), where the piping is connected to CO/CH4 column) having a single expansion loop, which is installed on piping for carbon monoxide gas, low pressure at its dew point and a steel box. The purified carbon monoxide gas does not contain nitrogen towards the cold box.

Description

La production de monoxyde de carbone à partir d'hydrocarbures se décomposeThe production of carbon monoxide from hydrocarbons breaks down

en plusieurs étapes. La première consiste à former le gaz de synthèse, la dernière à séparer par voie cryogénique le monoxyde de carbone des autres constituants.  in several stages. The first is to form the synthesis gas, the last to cryogenically separate carbon monoxide from other constituents.

Sans traitement adéquat, les molécules d'azote contenues dans l'hydrocarbure se retrouveront en majorité dans le monoxyde de carbone produit. Cette impureté peut ne pas être acceptable pour le client utilisateur du monoxyde de carbone, il faut donc la retirer.  Without adequate treatment, the nitrogen molecules contained in the hydrocarbon will be found mainly in the carbon monoxide produced. This impurity may not be acceptable to the carbon monoxide user, so remove it.

L'état de l'art propose des solutions intégrées de déazotation et des solutions où il est possible d'investir l'unité de déazotation uniquement lorsque le besoin s'en fait sentir. La première formule, par définition, ne permet pas de différer l'investissement, ce qui peut être préjudiciable lorsque la teneur en azote dans le gaz de synthèse ne grimpe qu'au bout de plusieurs années (changement de gaz naturel d'alimentation ou encore enrichissement progressif de celui-ci, etc...). L'état de l'art courant des unités de déazotation indépendantes propose une déazotation du monoxyde de carbone à température ambiante, ce qui ne permet pas d'optimiser finement l'énergie.  The state of the art offers integrated denitrogenation solutions and solutions where it is possible to invest the denitrogen unit only when the need arises. The first formula, by definition, does not allow to delay the investment, which can be detrimental when the nitrogen content in the synthesis gas only increases after several years (change of natural gas feed or progressive enrichment of it, etc ...). The current state of the art of independent denitrogenation units proposes denitrogenation of carbon monoxide at room temperature, which does not allow to finely optimize the energy.

Selon la présente invention, il est prévu un procédé d'intégration d'une unité de déazotation sur une boîte froide produisant du monoxyde de carbone dans lequel une première boîte froide produisant du monoxyde de carbone comprend une simple lyre de dilatation installée sur une tuyauterie de monoxyde de carbone gazeux, basse pression et à son point de rosée, un caisson en acier permettant d'avoir accès à cette tuyauterie et dans lequel lorsque l'on souhaite y raccorder la seconde boîte froide pour la déazotation, on découpe le bout de cette lyre, on traite le monoxyde de carbone gazeux impur dans une colonne de distillation dans la seconde boîte froide et on renvoie le monoxyde de carbone épuré en azote vers la première boite froide.  According to the present invention, there is provided a method of integrating a denitrogenation unit on a cold box producing carbon monoxide wherein a first cold box producing carbon monoxide comprises a simple dilatation lyre installed on a piping system. gaseous carbon monoxide, low pressure and at its dew point, a steel box allowing access to this pipe and in which when it is desired to connect the second cold box for denitrogenation, the end of this is cut out lyre, the impure carbon monoxide gas is treated in a distillation column in the second cold box and the nitrogen-purified carbon monoxide is returned to the first cold box.

De préférence, la première boîte froide comprend une colonne de lavage au méthane, une colonne d'épuisement et une colonne CO/CH4, la tuyauterie étant rattaché à la colonne CO/CH4.  Preferably, the first cold box comprises a methane washing column, a depletion column and a CO / CH4 column, the piping being attached to the CO / CH4 column.

Dans la présente invention, une simple lyre de dilatation installée sur une tuyauterie de monoxyde de carbone gazeux, basse pression et à son point de rosée (typiquement à la sortie de la dernière séparation, dans le cas d'un lavage au méthane, ce sera en tête de colonne CO/CH4) permet de rapprocher la tuyauterie d'une paroi de la boite froide. Un caisson en acier permettra d'avoir accès à cette tuyauterie lorsque l'on souhaitera y raccorder la seconde boîte froide pour la déazotation sans avoir à retirer la perlite de la boite, ce qui nécessite un arrêt prolongé.  In the present invention, a simple expansion tube installed on a low pressure carbon monoxide gas pipe and its dew point (typically at the exit of the last separation, in the case of a methane wash, it will be at the top of the CO / CH4 column) makes it possible to bring the piping closer to a wall of the cold box. A steel box will allow access to this piping when we want to connect the second cold box for denitrogenation without removing the perlite box, which requires a prolonged stop.

Lorsque l'on souhaite éliminer de l'azote du monoxyde de carbone, il suffit de découper le bout de cette lyre, de traiter le monoxyde de carbone gazeux impur dans une colonne de distillation et de le renvoyer vers la première boite froide. Il sera possible de rattraper les pertes de charge du circuit de déazotation en prévoyant une hauteur de liquide de monoxyde de carbone suffisante avant vaporisation de celui-ci (en effet, dans une séparation COIN2, le monoxyde de carbone est produit sous forme liquide en cuve). Un cycle azote indépendant satisfera aux besoins de rebouillage et de condensation, tout en permettant de vaporiser le monoxyde de carbone liquide.  When it is desired to remove nitrogen from carbon monoxide, it is sufficient to cut the end of this lyre, to treat the impure carbon monoxide gas in a distillation column and to return it to the first cold box. It will be possible to make up the pressure losses of the denitrogenation circuit by providing a sufficient liquid carbon monoxide height before vaporization thereof (indeed, in a COIN2 separation, the carbon monoxide is produced in liquid form in the tank ). An independent nitrogen cycle will satisfy the need for reboiling and condensation, while allowing the liquid carbon monoxide to be vaporized.

De cette manière, une boite froide peut se greffer sur une première boîte froide indépendante permettant la production de monoxyde de carbone sans séparation COIN2; cette nouvelle boite froide permet d'éliminer de l'azote d'un débit de monoxyde de carbone CO prélevé sur la première, de l'épurer à la teneur désirée en azote, puis de le renvoyer vers la boite principale sans différence de pression.  In this way, a cold box can be grafted on a first independent cold box for the production of carbon monoxide without COIN2 separation; this new cold box makes it possible to eliminate nitrogen from a flow rate of carbon monoxide CO taken from the first, to purify it to the desired nitrogen content, then to send it back to the main box without pressure difference.

Les pertes de charge du circuit de monoxyde de carbone CO de déazotation sont rattrapées sous la forme d'une hauteur de liquide en amont d'un échangeur où est vaporisé ce monoxyde de carbone CO avant renvoi vers la boite froide principale.  The pressure losses of the denitrogenation carbon monoxide CO circuit are recovered in the form of a height of liquid upstream of an exchanger where this CO carbon monoxide is vaporized before returning to the main cold box.

En installant un moyen de contournement au niveau de la sortie du monoxyde de carbone CO vers la seconde boite, il est possible de faire fonctionner la première boite en cas de trip de la seconde, ce qui limite les désavantages d'une intégration classique ou la défaillance d'un équipement entraîne l'arrêt de toute l'unité.  By installing a bypassing means at the output of carbon monoxide CO towards the second box, it is possible to operate the first box in case of trip of the second, which limits the disadvantages of a conventional integration or the equipment failure causes the entire unit to shut down.

L'intérêt de prélever le monoxyde de carbone à une pression compatible avec sa distillation et d'utiliser un compresseur indépendant pour les services de la distillation (compresseur d'azote) est que la liberté est totale dans le choix des pressions de fonctionnement dudit compresseur. Si la déazotation se fait sur le monoxyde de carbone chaud, il faudra recomprimer celui-ci après sa distillation, ce qui impose d'utiliser le monoxyde de carbone comme fluide alimentant le rebouilleur et le condenseur (pour n'utiliser qu'un seul compresseur pour la boite froide de déazotation). L'utilisation d'une machine commune est alors souvent pénalisante dans le choix des pressions d'aspiration et de refoulement des différentes sorties. En outre le site sera alors équipé de deux compresseurs de monoxyde de carbone ce qui est moins préférable qu'un compresseur de monoxyde de carbone et un petit compresseur d'azote, en termes de sécurité et d'investissement.  The advantage of taking carbon monoxide at a pressure compatible with its distillation and of using an independent compressor for the services of distillation (nitrogen compressor) is that the freedom is total in the choice of operating pressures of said compressor . If the denitrogenation is done on the hot carbon monoxide, it will be necessary to recompress it after its distillation, which imposes to use the carbon monoxide like fluid supplying the reboiler and the condenser (to use only one compressor for the cold box of denitration). The use of a common machine is often disadvantageous in the choice of the suction and discharge pressures of the different outputs. In addition the site will be equipped with two carbon monoxide compressors which is less preferable than a carbon monoxide compressor and a small nitrogen compressor, in terms of safety and investment.

Claims (2)

REVENDICATIONS 1. Procédé d'intégration d'une unité de déazotation sur une boîte froide produisant du monoxyde de carbone dans lequel une première boîte froide produisant du monoxyde de carbone comprend une simple lyre de dilatation installée sur une tuyauterie de monoxyde de carbone gazeux, basse pression et à son point de rosée, un caisson en acier permettant d'avoir accès à cette tuyauterie et dans lequel lorsque l'on souhaite y raccorder la seconde boîte froide pour la déazotation, on découpe le bout de cette lyre, on traite le monoxyde de carbone gazeux impur dans une colonne de distillation dans la seconde boîte froide et on renvoie le monoxyde de carbone épuré en azote vers la première boite froide.  A method of integrating a denitrogenation unit into a cold box producing carbon monoxide in which a first cold box producing carbon monoxide comprises a simple expansion tube installed on a gaseous carbon monoxide piping, low pressure and at its dew point, a steel box allowing access to this pipe and in which when it is desired to connect the second cold box for denitrogenation, the tip of this lyre is cut, the monoxide is treated. impure carbon gas in a distillation column in the second cold box and return the nitrogen-purified carbon monoxide to the first cold box. 2. Procédé selon la revendication 1 dans lequel la première boîte froide comprend une colonne de lavage au méthane, une colonne d'épuisement et une colonne CO/CH4, la tuyauterie étant rattaché à la colonne CO/CH4.  2. The method of claim 1 wherein the first cold box comprises a methane wash column, a depletion column and a CO / CH4 column, the piping being attached to the column CO / CH4.
FR0650270A 2006-01-26 2006-01-26 Integration process of de-nitrogenating carbon monoxide on a cold box, comprises connecting a cold box to piping, cutting the end of the expansion loop, treating the impure monoxide gas in a distilling column and recycling the purified gas Withdrawn FR2879595A1 (en)

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FR0650270A FR2879595A1 (en) 2006-01-26 2006-01-26 Integration process of de-nitrogenating carbon monoxide on a cold box, comprises connecting a cold box to piping, cutting the end of the expansion loop, treating the impure monoxide gas in a distilling column and recycling the purified gas

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FR0650270A FR2879595A1 (en) 2006-01-26 2006-01-26 Integration process of de-nitrogenating carbon monoxide on a cold box, comprises connecting a cold box to piping, cutting the end of the expansion loop, treating the impure monoxide gas in a distilling column and recycling the purified gas

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FR2879595A1 true FR2879595A1 (en) 2006-06-23

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100071411A1 (en) * 2006-12-21 2010-03-25 L'air Liquide Societeanonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method And Device For Separating A Mixture of At Least Hydrogen, Nitrogen, and Carbon Monoxide By Cryogenic Distillation
FR2942869A1 (en) * 2009-03-06 2010-09-10 Air Liquide Cryogenic separation method for mixture of carbon monoxide, hydrogen and nitrogen, involves constituting nitrogenless flow with final product at range or pressure higher than range set during pressurization in pump or compressor
FR2947621A1 (en) * 2009-07-06 2011-01-07 Air Liquide Air separation apparatus for industrial site, has pipes connected to average pressure column and low pressure column, respectively, where each pipe emerges at interior of double column, and is adapted to be connected to other column
FR3013820A1 (en) * 2013-11-27 2015-05-29 Air Liquide METHOD AND APPARATUS FOR CRYOGENIC SEPARATION OF A SYNTHESIS GAS CONTAINING HYDROGEN, NITROGEN AND CARBON MONOXIDE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100071411A1 (en) * 2006-12-21 2010-03-25 L'air Liquide Societeanonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method And Device For Separating A Mixture of At Least Hydrogen, Nitrogen, and Carbon Monoxide By Cryogenic Distillation
US8555673B2 (en) * 2006-12-21 2013-10-15 L'Air Liquide, Société pour l'Étude et l'Éxploitation des Procédés Georges Claude Method and device for separating a mixture of at least hydrogen, nitrogen, and carbon monoxide by cryogenic distillation
FR2942869A1 (en) * 2009-03-06 2010-09-10 Air Liquide Cryogenic separation method for mixture of carbon monoxide, hydrogen and nitrogen, involves constituting nitrogenless flow with final product at range or pressure higher than range set during pressurization in pump or compressor
FR2947621A1 (en) * 2009-07-06 2011-01-07 Air Liquide Air separation apparatus for industrial site, has pipes connected to average pressure column and low pressure column, respectively, where each pipe emerges at interior of double column, and is adapted to be connected to other column
FR3013820A1 (en) * 2013-11-27 2015-05-29 Air Liquide METHOD AND APPARATUS FOR CRYOGENIC SEPARATION OF A SYNTHESIS GAS CONTAINING HYDROGEN, NITROGEN AND CARBON MONOXIDE

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Publication number Publication date
FR2879595A3 (en) 2006-06-23

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