US20070151291A1 - Method and installation for producing carbon monoxide by cryogenic distillation - Google Patents

Method and installation for producing carbon monoxide by cryogenic distillation Download PDF

Info

Publication number
US20070151291A1
US20070151291A1 US10/572,668 US57266804A US2007151291A1 US 20070151291 A1 US20070151291 A1 US 20070151291A1 US 57266804 A US57266804 A US 57266804A US 2007151291 A1 US2007151291 A1 US 2007151291A1
Authority
US
United States
Prior art keywords
carbon monoxide
hydrogen
distillation column
enriched
liquid
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.)
Abandoned
Application number
US10/572,668
Inventor
Daniele Fauroux
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude
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 LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude
Assigned to L'AIR LIQUIDE, SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE reassignment L'AIR LIQUIDE, SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FAUROUX, DANIELE
Publication of US20070151291A1 publication Critical patent/US20070151291A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • F25J3/0233—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 CnHm with 1 carbon atom or more
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/70—Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/74—Refluxing the column with at least a part of the partially condensed overhead 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/90—Details relating to column internals, e.g. structured packing, gas or liquid distribution
    • F25J2200/94—Details relating to the withdrawal point
    • 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
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/04—Recovery of liquid products
    • 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/02—Internal refrigeration with liquid vaporising loop
    • 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/04—Internal refrigeration with work-producing gas expansion loop
    • 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/24—Quasi-closed internal or closed external carbon monoxide refrigeration cycle

Definitions

  • the present invention relates to a method and an installation for producing carbon monoxide by cryogenic distillation.
  • the synthesis gas produced by partial oxidation or by reforming often contains a percentage of nitrogen.
  • a method for producing carbon monoxide by cryogenic distillation comprising the following steps:
  • a stream of the carbon monoxide-enriched liquid is sent to a stripping column to produce hydrogen-free liquid carbon monoxide and hydrogen-enriched carbon monoxide gas
  • a carbon monoxide-rich stream is withdrawn from a second intermediate point, the second intermediate point being above the first intermediate point
  • an installation for producing carbon monoxide by cryogenic distillation comprising:
  • a heat exchanger for cooling and partially condensing a gas mixture containing carbon monoxide, hydrogen and nitrogen to produce a cooled and partially condensed gas mixture
  • a distillation column means for sending a stream of the hydrogen-free liquid to a first intermediate point of the distillation column, means for withdrawing a bottom liquid from the distillation column, means for withdrawing an overhead gas from the distillation column and means for withdrawing an intermediate fluid at a second intermediate point of the distillation column, the second intermediate point being above the first intermediate point.
  • a synthesis gas 1 containing 40% hydrogen, 58% carbon monoxide, 0 . 1 % methane, 0.5% nitrogen and 1.3% argon.
  • This gas is cooled in a heat exchanger 3 to form a cooled stream 5 that is sent to a separator pot 7 where it is partially condensed.
  • the hydrogen rich gas formed 9 is heated in the heat exchanger 3 and sent to a consumer.
  • the liquid 11 is expanded in a valve 13 to form a stream 15 .
  • the liquid stream 15 is sent to the top of a stripping column 17 heated at the bottom by a stream Q 1 sent to the bottom reboiler, which may, for example, be part of a carbon monoxide cycle.
  • a hydrogen-enriched waste gas stream RSD leaves the top of the stripping column 17 .
  • a hydrogen-free liquid stream 19 is withdrawn from the bottom of the column 17 , expanded in the valve 21 and sent to an intermediate point of a distillation column 23 .
  • the column 23 is heated at the bottom by a stream Q 2 sent to the bottom reboiler and cooled at the top by a stream Q 3 sent to the top condenser, the two streams possibly forming part of a carbon monoxide cycle.
  • a methane-rich liquid stream 27 is withdrawn from the bottom of the column 23 .
  • a carbon monoxide-rich liquid stream 29 is withdrawn at an intermediate point above the point of arrival 19 of the liquid.
  • This liquid preferably contains 98.5% carbon monoxide, less than 1% argon, less than 10 ⁇ 2 ppm methane and 0.4% nitrogen.
  • a gas mixture of hydrogen and nitrogen RSD N2 is withdrawn from the top of the distillation column 3 .
  • the stream RSD N2 is mixed with the stream RSD from the column 17 and leaves the installation to be discharged to the atmosphere and/or burned after being heated in the heat exchanger 3 .
  • the liquid 29 joins a stream of liquid 31 issuing from the cycle and the mixed stream is expanded in a valve 33 before being heated in the heat exchanger 3 to form the product 35 .
  • the installation is kept cold by a carbon monoxide gas turbine 37 , expansion of another fluid and/or by liquid injection.

Landscapes

  • 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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

The invention relates to a method for producing carbon monoxide by cryogenic distillation. Said method comprises the following steps: a gaseous mixture (1) containing carbon monoxide, hydrogen and nitrogen is cooled and partially condensed to produce a cooled and partially condensed gaseous mixture; the cooled and partially condensed gaseous mixture (5) is separated in order to produce a gas enriched with hydrogen and a liquid enriched with carbon monoxide (11); a flow of the liquid enriched with carbon monoxide is sent to a product stripper (17) in order to produce hydrogen-depleted liquid carbon monoxide (19) and hydrogen-enriched gaseous carbon monoxide (RSD); a flow of the hydrogen-depleted carbon monoxide is sent to a first intermediate level of a distillation column (23); a liquid flow enriched with methane (27) compared to the flow supplied to the distillation column is drawn off from the bottom of the distillation column; a flow (29) enriched with carbon monoxide is drawn off at a second intermediate point above the first intermediate point; and a flow (RSDN2) enriched with nitrogen and optionally hydrogen compared to the flow supplied to the distillation column is drawn off from the top of the distillation column.

Description

  • The present invention relates to a method and an installation for producing carbon monoxide by cryogenic distillation.
  • The synthesis gas produced by partial oxidation or by reforming often contains a percentage of nitrogen.
  • All the percentages mentioned are mole percentages.
  • It is known to reduce the percentage of nitrogen in the carbon monoxide produced by using a nitrogen and carbon monoxide separating column (EP-A-928936).
  • It is one object of the present invention to provide a cryogenic separation installation for producing carbon monoxide substantially containing no nitrogen using fewer columns than the installations of the prior art.
  • According to one object of the present invention, a method is provided for producing carbon monoxide by cryogenic distillation comprising the following steps:
  • i) a gas mixture containing carbon monoxide, hydrogen and nitrogen is cooled and partially condensed to produce a cooled and partially condensed gas mixture
  • ii) the cooled and partially condensed gas mixture is separated to produce a hydrogen-enriched gas and a carbon monoxide-enriched liquid
  • iii) a stream of the carbon monoxide-enriched liquid is sent to a stripping column to produce hydrogen-free liquid carbon monoxide and hydrogen-enriched carbon monoxide gas
  • iv) a stream of the hydrogen-free carbon monoxide is sent to a first intermediate level of a distillation column
  • v) a liquid stream, richer in methane compared to the stream feeding to the distillation column, is withdrawn from the bottom of the distillation column
  • vi) a carbon monoxide-rich stream is withdrawn from a second intermediate point, the second intermediate point being above the first intermediate point
  • vii) a stream, enriched with nitrogen and optionally hydrogen compared to the stream feeding to the distillation column, is withdrawn from the top of the distillation column
  • Optionally:
      • the carbon monoxide-rich stream withdrawn from the distillation column is a liquid stream;
      • a carbon monoxide cycle cools the top of the distillation column and/or heats the bottom of the distillation column and/or heats the bottom of the stripping column;
      • cycle carbon monoxide is expanded in a turbine.
  • According to a further object of the invention, an installation is provided for producing carbon monoxide by cryogenic distillation comprising:
  • a) a heat exchanger for cooling and partially condensing a gas mixture containing carbon monoxide, hydrogen and nitrogen to produce a cooled and partially condensed gas mixture
  • b) a separator for separating the cooled and partially condensed gas mixture to produce a hydrogen-enriched gas and a carbon monoxide-enriched liquid
  • c) means for conveying the cooled and partially condensed gas mixture from the heat exchanger to the separator
  • d) a stripping column and means for conveying at least part of the carbon monoxide-enriched liquid thereto
  • e) means for withdrawing a hydrogen-enriched gas from the top of the stripping column and means for withdrawing a hydrogen-free liquid from the bottom of the stripping column
  • f) a distillation column, means for sending a stream of the hydrogen-free liquid to a first intermediate point of the distillation column, means for withdrawing a bottom liquid from the distillation column, means for withdrawing an overhead gas from the distillation column and means for withdrawing an intermediate fluid at a second intermediate point of the distillation column, the second intermediate point being above the first intermediate point.
  • Optionally:
      • the distillation column has a top condenser and/or a bottom reboiler;
      • the stripping column has a bottom reboiler;
      • the column (columns) is (are) heated and/or cooled using a carbon monoxide gas cycle.
  • The invention is described in greater detail with reference to the single FIGURE.
  • In the FIGURE, a synthesis gas 1 containing 40% hydrogen, 58% carbon monoxide, 0.1% methane, 0.5% nitrogen and 1.3% argon.
  • This gas is cooled in a heat exchanger 3 to form a cooled stream 5 that is sent to a separator pot 7 where it is partially condensed. The hydrogen rich gas formed 9 is heated in the heat exchanger 3 and sent to a consumer.
  • The liquid 11 is expanded in a valve 13 to form a stream 15. The liquid stream 15 is sent to the top of a stripping column 17 heated at the bottom by a stream Q1 sent to the bottom reboiler, which may, for example, be part of a carbon monoxide cycle. A hydrogen-enriched waste gas stream RSD leaves the top of the stripping column 17. A hydrogen-free liquid stream 19 is withdrawn from the bottom of the column 17, expanded in the valve 21 and sent to an intermediate point of a distillation column 23. The column 23 is heated at the bottom by a stream Q2 sent to the bottom reboiler and cooled at the top by a stream Q3 sent to the top condenser, the two streams possibly forming part of a carbon monoxide cycle.
  • A methane-rich liquid stream 27 is withdrawn from the bottom of the column 23. A carbon monoxide-rich liquid stream 29 is withdrawn at an intermediate point above the point of arrival 19 of the liquid. This liquid preferably contains 98.5% carbon monoxide, less than 1% argon, less than 10−2 ppm methane and 0.4% nitrogen. A gas mixture of hydrogen and nitrogen RSD N2 is withdrawn from the top of the distillation column 3.
  • The stream RSD N2 is mixed with the stream RSD from the column 17 and leaves the installation to be discharged to the atmosphere and/or burned after being heated in the heat exchanger 3.
  • The liquid 29 joins a stream of liquid 31 issuing from the cycle and the mixed stream is expanded in a valve 33 before being heated in the heat exchanger 3 to form the product 35.
  • The installation is kept cold by a carbon monoxide gas turbine 37, expansion of another fluid and/or by liquid injection.

Claims (9)

1-8. (canceled)
9. A method for producing carbon monoxide by cryogenic distillation comprising the following steps:
a) a gas mixture containing carbon monoxide, hydrogen and nitrogen is cooled and partially condensed to produce a cooled and partially condensed gas mixture;
b) the cooled and partially condensed gas mixture is separated to produce a hydrogen-enriched gas and a carbon monoxide-enriched liquid;
c) a stream of the carbon monoxide-enriched liquid is sent to a stripping column to produce hydrogen-free liquid carbon monoxide and hydrogen-enriched carbon monoxide gas;
d) a stream of the hydrogen-free carbon monoxide is sent to a first intermediate level of a distillation column;
e) a liquid stream, richer in methane compared to the stream feeding to the distillation column, is withdrawn from the bottom of the distillation column;
f) a carbon monoxide-rich stream is withdrawn from a second intermediate point, the second intermediate point being above the first intermediate point; and
g) a stream, enriched with nitrogen and optionally hydrogen compared to the stream feeding to the distillation column, is withdrawn from the top of the distillation column.
10. The method of claim 9, in which the carbon monoxide-rich stream withdrawn from the distillation column is a liquid stream.
11. The method of claim 9, in which a carbon monoxide cycle cools the top of the distillation column and/or heats the bottom of the distillation column and/or heats the bottom of the stripping column.
12. The method of claim 9, in which cycle carbon monoxide is expanded in a turbine.
13. An installation for producing carbon monoxide by cryogenic distillation comprising:
a) a heat exchanger for cooling and partially condensing a gas mixture containing carbon monoxide, hydrogen and nitrogen to produce a cooled and partially condensed gas mixture;
b) a separator for separating the cooled and partially condensed gas mixture to produce a hydrogen-enriched gas and a carbon monoxide-enriched liquid;
c) means for conveying the cooled and partially condensed gas mixture from the heat exchanger to the separator;
d) a stripping column and means for conveying at least part of the carbon monoxide-enriched liquid thereto;
e) means for withdrawing a hydrogen-enriched gas from the top of the stripping column and means for withdrawing a hydrogen-free liquid from the bottom of the stripping column; and
f) a distillation column, means for sending a stream of the hydrogen-free liquid to a first intermediate point of the distillation column, means for withdrawing a bottom liquid from the distillation column, means for withdrawing an overhead gas (RSD N2) from the distillation column and means for withdrawing an intermediate fluid at a second intermediate point of the distillation column, the second intermediate point being above the first intermediate point.
14. The installation of claim 13, in which the distillation column has a top condenser and/or a bottom reboiler.
15. The installation of claim 13, in which the stripping column has a bottom reboiler.
16. The installation of claim 13, in which the column (columns) is (are) heated and/or cooled using a carbon monoxide gas cycle.
US10/572,668 2003-09-30 2004-09-21 Method and installation for producing carbon monoxide by cryogenic distillation Abandoned US20070151291A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0350621A FR2843447B1 (en) 2003-09-30 2003-09-30 PROCESS AND PLANT FOR PRODUCING CARBON MONOXIDE BY CRYOGENIC DISTILLATION
FR0350621 2003-09-30
PCT/FR2004/050446 WO2005033599A1 (en) 2003-09-30 2004-09-21 Method and installation for producing carbon monoxide by cryogenic distillation

Publications (1)

Publication Number Publication Date
US20070151291A1 true US20070151291A1 (en) 2007-07-05

Family

ID=30471116

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/572,668 Abandoned US20070151291A1 (en) 2003-09-30 2004-09-21 Method and installation for producing carbon monoxide by cryogenic distillation

Country Status (6)

Country Link
US (1) US20070151291A1 (en)
EP (1) EP1682836B1 (en)
JP (1) JP2007507337A (en)
CN (1) CN100427862C (en)
FR (1) FR2843447B1 (en)
WO (1) WO2005033599A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100126215A1 (en) * 2007-04-13 2010-05-27 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method For Cooling A Cryogenic Exchange Line
US20100251765A1 (en) * 2009-04-01 2010-10-07 Air Products And Chemicals, Inc. Cryogenic Separation of Synthesis Gas
FR2953004A1 (en) * 2009-11-24 2011-05-27 Air Liquide PROCESS FOR CRYOGENIC SEPARATION OF A NITROGEN MIXTURE AND CARBON MONOXIDE

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2912207B1 (en) * 2007-02-01 2012-10-26 Air Liquide PROCESS AND APPARATUS FOR PRODUCING CARBON MONOXIDE BY CRYOGENIC DISTILLATION
FR2930332A1 (en) * 2008-04-18 2009-10-23 Air Liquide METHOD AND APPARATUS FOR CRYOGENIC SEPARATION OF A MIXTURE OF HYDROGEN AND CARBON MONOXIDE
CN102261811A (en) * 2011-06-22 2011-11-30 杭州中泰深冷技术股份有限公司 Device for cryogenically separating carbon monoxide from hydrogen
CN102721264A (en) * 2012-07-04 2012-10-10 开封空分集团有限公司 Carbon monoxide mixture purification system and purification method
FR3058207B1 (en) * 2016-10-28 2020-01-10 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude PROCESS FOR CRYOGENIC SEPARATION OF A MIXTURE OF HYDROGEN AND CARBON MONOXIDE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478621A (en) * 1982-04-28 1984-10-23 Linde Aktiengesellschaft Process for the extraction of carbon monoxide from gas streams
US5609040A (en) * 1994-04-11 1997-03-11 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and plant for producing carbon monoxide

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4433114A1 (en) * 1994-09-16 1996-03-21 Linde Ag Process for obtaining a pure carbon monoxide fraction
DE19541339B4 (en) * 1995-11-06 2006-08-10 Linde Ag Process for recovering carbon monoxide
GB9800693D0 (en) * 1998-01-13 1998-03-11 Air Prod & Chem Separation of carbon monoxide from nitrogen-contaminated gaseous mixtures
GB9802231D0 (en) * 1998-02-02 1998-04-01 Air Prod & Chem Separation of carbon monoxide from nitrogen-contaminated gaseous mixtures also containing hydrogen
FR2780391B1 (en) * 1998-06-26 2000-10-20 Air Liquide PROCESS FOR PRODUCING CARBON MONOXIDE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478621A (en) * 1982-04-28 1984-10-23 Linde Aktiengesellschaft Process for the extraction of carbon monoxide from gas streams
US5609040A (en) * 1994-04-11 1997-03-11 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and plant for producing carbon monoxide

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100126215A1 (en) * 2007-04-13 2010-05-27 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method For Cooling A Cryogenic Exchange Line
US20100251765A1 (en) * 2009-04-01 2010-10-07 Air Products And Chemicals, Inc. Cryogenic Separation of Synthesis Gas
US9909803B2 (en) 2009-04-01 2018-03-06 Air Products And Chemicals, Inc. Cryogenic separation of synthesis gas
FR2953004A1 (en) * 2009-11-24 2011-05-27 Air Liquide PROCESS FOR CRYOGENIC SEPARATION OF A NITROGEN MIXTURE AND CARBON MONOXIDE
WO2011067492A3 (en) * 2009-11-24 2014-03-20 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Method for cryogenically separating a mixture of nitrogen and carbon monoxide
US9625209B2 (en) 2009-11-24 2017-04-18 L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude Method for cryogenically separating a mixture of nitrogen and carbon monoxide

Also Published As

Publication number Publication date
FR2843447B1 (en) 2009-02-06
WO2005033599A1 (en) 2005-04-14
EP1682836B1 (en) 2013-05-01
JP2007507337A (en) 2007-03-29
FR2843447A1 (en) 2004-02-13
EP1682836A1 (en) 2006-07-26
CN1860338A (en) 2006-11-08
CN100427862C (en) 2008-10-22

Similar Documents

Publication Publication Date Title
US8959952B2 (en) Method for separating a mixture of carbon monoxide, methane, hydrogen and optionally nitrogen by cryogenic distillation
CN109790019B (en) Process and apparatus for producing carbon monoxide
US8640495B2 (en) Separation of carbon monoxide from gaseous mixtures containing carbon monoxide
US20110056239A1 (en) Method And Device For Cryogenically Separating A Mixture of Hydrogen And Carbon Monoxide
US6070430A (en) Separation of carbon monoxide from nitrogen-contaminated gaseous mixtures also containing hydrogen
EP0384688B1 (en) Air separation
JP2004028572A (en) Air fractionation process and air fractionation installation provided with mixing column and krypton and/or xenon recovery device
US6266976B1 (en) Cryogenic H2 and carbon monoxide production with an impure carbon monoxide expander
WO2010114690A1 (en) Cyrogenic separation of synthesis gas
US9625209B2 (en) Method for cryogenically separating a mixture of nitrogen and carbon monoxide
WO2012097497A1 (en) Process and apparatus for production of ammonia synthesis gas and pure methane by cryogenic separation
EP0979982A1 (en) Combined cryogenic and non-cryogenic gas mixture separation
US20070151291A1 (en) Method and installation for producing carbon monoxide by cryogenic distillation
KR20010105207A (en) Cryogenic air separation system with split kettle recycle
US20090293539A1 (en) Method And Apparatus For Producing Carbon Monoxide By Cryogenic Distillation
EP1215458A1 (en) Process and apparatus for the separation of carbon monoxide and hydrogen from a gaseous mixture thereof
WO1999067587A1 (en) Cryogenic and membrane synthesis gas production
US20210055048A1 (en) Process and apparatus for production of carbon monoxide by partial condensation
US20180209725A1 (en) Production of helium from a stream of natural gas
US11125496B2 (en) Process and device for the cryogenic separation of synthesis gas
CN112143537A (en) Method and apparatus for the cryogenic separation of syngas for the production of CH4
GB2073863A (en) Gas recovery method and apparatus

Legal Events

Date Code Title Description
AS Assignment

Owner name: L'AIR LIQUIDE, SOCIETE ANONYME A DIRECTOIRE ET CON

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FAUROUX, DANIELE;REEL/FRAME:018361/0697

Effective date: 20060303

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION