CA2245040A1 - Process for the conversion of a flow containing hydrocarbons by partial oxidation - Google Patents

Process for the conversion of a flow containing hydrocarbons by partial oxidation Download PDF

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Publication number
CA2245040A1
CA2245040A1 CA002245040A CA2245040A CA2245040A1 CA 2245040 A1 CA2245040 A1 CA 2245040A1 CA 002245040 A CA002245040 A CA 002245040A CA 2245040 A CA2245040 A CA 2245040A CA 2245040 A1 CA2245040 A1 CA 2245040A1
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Canada
Prior art keywords
air
column
oxygen
flow
single column
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Abandoned
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CA002245040A
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French (fr)
Inventor
Zhijie Chen
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LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Individual
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Publication of CA2245040A1 publication Critical patent/CA2245040A1/en
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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
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
    • 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
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
    • F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
    • F25J3/04296—Claude expansion, i.e. expanded into the main or 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
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04333—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/04351—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams 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
    • 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
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
    • F25J3/04539—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the H2/CO synthesis by partial oxidation or oxygen consuming reforming processes of fuels
    • 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
    • F25J3/04975—Construction and layout of air fractionation equipments, e.g. valves, machines adapted for special use of the air fractionation unit, e.g. transportable devices by truck or small scale use
    • F25J3/04987—Construction and layout of air fractionation equipments, e.g. valves, machines adapted for special use of the air fractionation unit, e.g. transportable devices by truck or small scale use for offshore use
    • 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
    • F25J2200/76—Refluxing the column with condensed overhead gas being cycled in a quasi-closed loop refrigeration cycle
    • 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
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
    • 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
    • Y10S62/901—Single 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
    • Y10S62/939—Partial feed stream expansion, air

Abstract

Air is distilled in a single column (8) installed on a boat, and from here an oxygen-enriched liquid flow is drawn off. This flow is pressurized by a pump (9) and vaporized by heat exchange with air or nitrogen.
The oxygen (105) is used for the partial oxidation of a flow (101) containing hydrocarbons, for example natural gas.

Description

- CA 0224~040 1998-08-13 The present invention relates to a process and to a plant for the conversion of a flow containing hydrocarbons by partial oxidation.
In this type of process, a flow containing hydrocarbons, typically natural gas, is converted into synthesis gas after partial oxidation with oxygen or oxygen-enriched air.
This conversion can be carried out by a reforming process, for example of the ATR (Autothermal Reforming) type, which makes it possible to produce a synthesis gas. Following catalytic conversion, the synthesis gas is converted into liquid hydrocarbons (kerosene, diesel, naphtha).
This type of process is described in US 5 628 931, WO 93 15999, GB 2249555, GB 2183672, EP 214 432 A.
The present invention also relates to a process and to a plant for the separation of air by cryogenic distillation and, in particular, to those processes and plants which make it possible to produce oxygen.
According to one subject of the invention, a process is provided for the conversion of a flow containing hydrocarbons by partial oxidation with oxygen, characterized in that the oxygen needed for the conversion is separated by cryogenic distillation from air in a single column installed on a boat.
According to other aspects of the invention, - the flow containing hydrocarbons is methane, natural gas or LPG, - the oxygen is drawn off from the single column in liquid form, pressurized and vaporized, - the conversion is carried out by a reforming process producing a synthesis gas, which reforming is followed by catalytic conversion of the said synthesis gas into liquid hydrocarbons, - the nitrogen needed for the process is produced by adsorption or permeation.
According to another subject of the invention, a plant is provided for the conversion of a flow CA 0224~040 1998-08-13 containing hydrocarbons, comprising a partial-oxidation unit fed with oxygen, characterized in that it comprises air separation apparatus including a single column (8) installed on a boat.
Oxygen is generally produced by the distillation of air in a double column. When this column is placed on an unstable support, such as the deck of a boat, the quality of the distillation is degraded because the plates or packing contained in the column cannot function correctly.
"Nitrogen for Inerting" Tank and Bulk Carrier, November 1973 and "Distillation Problems on a Floating PLant" CEP, November 1982, describe solutions for improving distillation on a boat.
The object of this invention is to provide an air separation process which is compatible with the working conditions on a boat.
According to another subject of the invention, a process is provided for the separation of air by cryogenic distillation in a single column, in which i) air to be distilled is sent into a single column where it is separated into a nitrogen-enriched vapour and an oxygen-enriched liquid, ii) the base of the column is heated by means of a boiler, characterized in that at least some of the oxygen-enriched liquid is drawn off, pressurized and vaporized by heat exchange with a pressurized flow.
According to other aspects of the invention, - the fluid used to heat the boiler is nitrogen or at least some of the air to be distilled, - the air sent to the boiler comes from a turbine, optionally coupled to a booster, - the pressurized flow is air at a boosted pressure or compressed nitrogen, - vapour is drawn off from the head of the column and at least some of it is compressed, CA 0224~040 1998-08-13 - at least some of the compressed nitrogen is recycled to the column, - oxygen-enriched liquid is produced, - at least some of the air intended for the column is cooled to an intermediate temperature in a heat exchanger, before being expanded, optionally to the column pressure, in a turbine.
According to another subject of the invention, a plant is provided for the separation of air by cryogenic distillation, comprising, -a single column, -means for feeding the single column with air, -a boiler at the base of the single column, -means for sending a heating fluid to the boiler, characterized in that it comprises -means for drawing off an oxygen-enriched liquid from the base of the single column, -means for pressurizing at least some of the liquid, -~eans for vaporizing at least some of the pressurized liquid by heat exchange with a pressurized flow.
According to other aspects of the invention, - the boiler is heated with nitrogen or at least some of the air to be distilled, - the boiler is connected to a turbine, - the pressured flow is air at a boosted pressure or compressed nitrogen, - means are provided for compressing a nitrogen-enriched flow drawn off from the head of the column, - the single column contains plates or structured packing.
Other aspects of the invention will now be described with reference to Figures 1 to 3, which are diagrams of processes according to the invention.

CA 0224~040 1998-OX-13 In Figure 1, an air flow is compressed by the compressor 1 to 4.5 bar and purified in the unit 2 to remove water and CO2.
A first fraction of the air has its pressure raised to 6 bar by the booster 4, is partially cooled in the exchanger 6 and is expanded in the turbine 5 to 1.4 bar. The fraction is then supercooled in the exchanger 10 before being sent to the column 8 installed on a boat 31.
A second air fraction has its pressure raised to 70 bar in the booster 3 and condensed at least partially in the exchanger 6.
The rest of the air passes fully through the exchanger 6, condenses at least partially in the base boiler 7 and is sent to the head of the column 8, after having been supercooled and expanded in a valve.
A flow containing oxygen with a purity of at least 95% in liquid form is drawn off from the base of the column 8, pumped to 36 bar (in 9) and vaporized in the exchanger 6 by heat exchange with air at a boosted pressure of 70 bar.
Nitrogen-enriched vapour is drawn off from the head of the column 8 and heated in the exchangers 10 and 6.
Figure 2 shows the boosted turbine 4, 5, but the booster 3 is replaced by a nitrogen cycle.
Nitrogen-enriched vapour is heated to ambient temperature and compressed to 70 bar by a compressor 30. At least some of the compressed nitrogen is recycled to the column after having been cooled in the exchangers 6 and 10.
The process may be simplified (Figure 3) to use a single air compressor. All of the air is compressed by the compressor 4 to about 28 bar and then cooled in the exchanger 6 to an intermediate temperature, at which some of the air is drawn off, expanded and sent into the boiler 7 where it condenses at least partially before being expanded in a valve and sent to the head of the column 8. The rest of the air continues to cool CA 0224~040 1998-08-13 and is liquefied in the exchanger 6, is supercooled in the exchanger 10 and is sent to the column, after having been mixed with the other part of the air.
Figure 4 shows a process diagram according to the invention, in which the air 103 is distilled in an air separation unit 104 such as those illustrated in Figures 1 to 3.
Vaporized liquid oxygen 105 is sent to a partial-oxidation unit 102, also supplied with natural gas 101. The synthesis gas 107 produced in this way undergoes a catalytic conversion step 109 (of the FISCHER-TROPSCH type), in order to produce liquid hydrocarbons (kerosene, diesel and/or naphtha).

Claims (19)

1. Process for the separation of air by cryogenic distillation in a single column (8), in which i) air to be distilled is sent into a single column where it is separated into a nitrogen-enriched vapour and an oxygen-enriched liquid, ii) the base of the column is heated by means of a boiler (7), and iii) at least some of the oxygen-enriched liquid is drawn off, pressurized and vaporized by heat exchange with a pressurized flow, characterized in that the boiler (7) is heated with an air flow.
2. Process according to Claim 1, in which the air sent to the boiler comes from a turbine (5), optionally coupled to a booster (4).
3. Process according to one of Claims 1 and 2, in which the pressurized flow is air at a boosted pressure or compressed nitrogen.
4. Process according to one of Claims 1 to 3, in which vapour is drawn off from the head of the column (8) and at least some of it is compressed.
5. Process according to Claim 4, in which at least some of the compressed vapour is recycled to the column (8).
6. Process according to one of the preceding claims, in which oxygen-enriched liquid is produced.
7. Process according to one of Claims 1 to 6, in which at least some of the air intended for the column (8) is cooled to an intermediate temperature in a heat exchanger (6), before being expanded, optionally to the column pressure, in a turbine (5).
8. Plant for the separation of air by cryogenic distillation, comprising, a single column (8), means for feeding the single column with air (103), a boiler (7) at the base of the single column, means for sending a heating fluid to the boiler, means for drawing off an oxygen-enriched liquid from the base of the single column, means (9) for pressurizing at least some of the liquid, means (6) for vaporizing at least some of the pressurized liquid by heat exchange with a pressurized flow, characterized in that the heating fluid is air.
9. Plant according to Claim 8, in which the boiler (7) is connected to a turbine (5).
10. Plant according to one of Claims 8 and 9, in which the pressured flow is air at a boosted pressure or compressed nitrogen.
11. Plant according to one of Claims 8 to 10, comprising means (30) for compressing a nitrogen-enriched flow drawn off from the head of the column (8).
12. Plant according to one of Claims 8 to 11, in which the single column contains plates or structured packing.
13. Use of a plant according according to one of Claims 8 to 12 on a boat.
14. Process for the conversion of a flow (101) containing hydrocarbons by partial oxidation with oxygen, characterized in that the oxygen needed for the conversion is separated by cryogenic distillation from air in a single column (8) installed on a boat.
15. Process according to Claim 14, in which the flow containing hydrocarbons is methane, natural gas or LPG.
16. Process according to Claim 14 or 15, in which the oxygen is drawn off from the single column in liquid form, pressurized and vaporized.
17. Process according to one of Claims 14 to 16, in which the conversion is carried out by a reforming process producing a synthesis gas, which reforming is followed by catalytic conversion of the said synthesis gas into liquid hydrocarbons.
18. Process according to one of Claims 14 to 17, in which the nitrogen needed for the process is produced by adsorption or permeation.
19. Plant for the conversion of a flow (101) containing hydrocarbons, comprising a partial-oxidation unit (102) fed with oxygen, characterized in that it comprises air separation apparatus (104) including a single column (8) installed on a boat (31).
CA002245040A 1997-08-14 1998-08-13 Process for the conversion of a flow containing hydrocarbons by partial oxidation Abandoned CA2245040A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9710400A FR2767317B1 (en) 1997-08-14 1997-08-14 PROCESS FOR CONVERTING A FLOW CONTAINING HYDROCARBONS BY PARTIAL OXIDATION
FR97/10400 1997-08-14

Publications (1)

Publication Number Publication Date
CA2245040A1 true CA2245040A1 (en) 1999-02-14

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CA002245040A Abandoned CA2245040A1 (en) 1997-08-14 1998-08-13 Process for the conversion of a flow containing hydrocarbons by partial oxidation

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US (2) US6110980A (en)
JP (1) JPH11142055A (en)
CN (1) CN1208847A (en)
AU (1) AU739325B2 (en)
CA (1) CA2245040A1 (en)
DE (1) DE19836824C2 (en)
FR (1) FR2767317B1 (en)
GB (1) GB2328274B (en)
ID (1) ID23559A (en)
NO (1) NO983586L (en)
ZA (1) ZA987266B (en)

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US6110980A (en) 2000-08-29
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ZA987266B (en) 1999-02-09

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