WO1998036038A1 - Procede et installation integree pour la production de combustible de synthese, de gaz naturel liquefie et de courant electrique - Google Patents

Procede et installation integree pour la production de combustible de synthese, de gaz naturel liquefie et de courant electrique Download PDF

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Publication number
WO1998036038A1
WO1998036038A1 PCT/NO1998/000024 NO9800024W WO9836038A1 WO 1998036038 A1 WO1998036038 A1 WO 1998036038A1 NO 9800024 W NO9800024 W NO 9800024W WO 9836038 A1 WO9836038 A1 WO 9836038A1
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Prior art keywords
plant
gas
conversion
starting material
natural gas
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PCT/NO1998/000024
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English (en)
Inventor
Terje M. HALMØ
Alf S. Martinsen
Roger Hansen
Dag Schanke
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Den Norske Stats Oljeselskap A.S.
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Priority to AU58865/98A priority Critical patent/AU5886598A/en
Publication of WO1998036038A1 publication Critical patent/WO1998036038A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
    • F25J1/0229—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock
    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0281—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc. characterised by the type of prime driver, e.g. hot gas expander
    • F25J1/0284—Electrical motor as the prime mechanical driver
    • 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
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04593—The air gas consuming unit is also fed by an air stream
    • 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
    • F25J3/04593—The air gas consuming unit is also fed by an air stream
    • F25J3/046—Completely integrated air feed compression, i.e. common MAC
    • 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
    • F25J3/04612—Heat exchange integration with process streams, e.g. from the air gas consuming unit
    • 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
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
    • F25J2220/64—Separating heavy hydrocarbons, e.g. NGL, LPG, C4+ hydrocarbons or heavy condensates 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
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
    • F25J2220/66—Separating acid gases, e.g. CO2, SO2, H2S or RSH
    • 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
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/70—Steam turbine, e.g. used in a Rankine cycle
    • 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
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/80—Hot exhaust gas turbine combustion engine

Definitions

  • the present invention relates to a processing and converting a hydrocarbonous gas, such as e.g. natural gas in an integrated plant for the preparation of useful products, including chemical reaction products and mechanical or electrical power, as well as an integrated process plant for the accomplishment of such a process.
  • a hydrocarbonous gas such as e.g. natural gas in an integrated plant for the preparation of useful products, including chemical reaction products and mechanical or electrical power, as well as an integrated process plant for the accomplishment of such a process.
  • hydrocarbonous gas in the present context and the appending claims is understood hydrocarbon compositions consisting of hydrocarbon components substantially existing in a gaseous form at standard pressure and temperature conditions.
  • Natural gas is an important part of numerous petrochemical reservoirs and can find utilisation as starting materials for further refined products in the form of pure hydrocarbons and in the form of oxidised derivatives thereof. Further, natural gas can be used for the production of power such as electrical power or mechanical power.
  • the natural gas reservoirs are situated at remote sites from the established natural gas markets where the utilisation thereof, as mentioned above, takes place. This is e.g. the case in Europe, where the petrochemical sources are situated at the sea bottom far away from the European continent.
  • synfuel synthetically prepared engine fuels in liquid form
  • Natural gas substantially consists of methane admixed with other gaseous hydrocarbons , C0 2 and gaseous sulphur compounds such as H 2 S and lower mercaptanes.
  • synthesis gas When the methane is preheated to a temperature of the order 600°C and then is supplied with oxygen in a reforming step, oxygenated products of the methane are formed primarily in the form of CO and H 2 .
  • This gas composition is called «synthesis gas».
  • a synthesis gas may alternatively be prepared by reducing carbon (usually in the form of coke) with water, and under pressure and at elevated temperatures, but also methane or higher hydrocarbons having a higher molecular weight according to the scheme:
  • the synthesis gas is produced in an exothermal reaction, and power in the form of heat can be recovered from this step and optionally be converted to mechanical or electrical power.
  • the synthesis gas may then be reacted in a further step to methanol and dimethyl ether or in a Fischer-Tropsch synthesis to straight alkanes and/or alkenes of a higher molecular weight than the prevailing hydrocarbons of the natural gas.
  • the products of the reaction step of carbon monoxide and hydrogen gas is the product called «synfuel» (synthetic fuel) and being the intended product of the process.
  • non-reacted gas and side products may be recovered as a separate stream and may be recycled to the reforming step or used as fuel for the production of power.
  • the conversion of synthesis gas is e.g. disclosed in G.A. Mills, «Status and opportunities for conversion of synthesis gas to liquid fuels», Fuel, vol. 73(8) pp 1243-1279, (1994).
  • the Norwegian publication 179 169 discloses a process of converting natural gas to a normally liquid, carbonous compound such as methanol and/or dimethyl ether and/or liquid hydrocarbons of gasoline quality and/or olefins. The process avoids requirement of vapour reforming and/or adiabatic reforming of natural gas to synthesis gas using a substantially pure oxygen.
  • the synthesis gas may be prepared at an operative pressure which is useful for converting the gas to methanol and/or dimethyl ether without recompression of the synthesis gas.
  • the exhaust gas from the overhead has, subsequent to the conversion of the crude product methanol/DME and/or conversion to liquid hydro-carbons of gasoline quality, generally a BTU-capacity which is required for the use as fuel gas for the power supply being required for the operation of the required gas compression facilities used in the process. This renders the operation of the plant more economical and a process useful at remote sites.
  • US Patent No. 4,594,140 discloses the preparation of synthesis gas from coke by the reaction with high pressure steam feed to a steam turbine generator, wherein electrical power is produced, whereas the exhaust gas is brought to a gasification plant and admixed with starting materials to be gasified and then passed to a shift reactor the products of which are again fed into the coke «liquefaction» plant. Steam is therein used as the source of energy, and the conversion to synthesis gas does not appear to be disclosed.
  • US patent No. 5.177.114 claims the same priority as the Norwegian publication No. 179169 and does not appear to differ substantially therefrom.
  • US patent No. 4.927.856 combines the production of electrical power, hydrogen gas production and methanol in an integrated system and discloses a corresponding process.
  • the electricity is formed in turbines run by heated gas from a pressurised fuel source, and the electricity is then used in an electrolysis unit converting water, optionally condensed from the source gas, to hydrogen gas which is subsequently reacted with hydrocarbon oxides of the source gas under the formation of methanol.
  • US patent No. 5.245.110 discloses the preparation of an oxygen enriched gas composition in an apparatus comprising a gas turbine, an oxidation separation plant in a fluid connection with the turbine air compressor and means for maintaining an appropriate mass balance-tolerance between the turbine compressor unit and the turbine power production unit.
  • methanol is produced by reacting a CO-rich synthesis gas in the presence of a powder methanol synthesis catalyst suspended in an inert aqueous phase reactor system. Unreacted CO-rich synthesis gas is recycled to the reactor.
  • the process is integrated with a carbon gasification system for the production of electrical power in which one part of the unreacted synthesis gas is used as a fuel, and part of the methanol product is used as further fuel in periods of an increased demand.
  • the European Patent Application 0497425 A-1 discloses the preparation of organic compounds and production of power from heavy hydrocarbons by gasification of the heavy hydrocarbons to a gaseous composition comprising hydrogen and carbonmonoxide, catalytic partial conversion of the gaseous composition to organic compounds by the use of a catalyst and production of electrical power from the non-converted gaseous composition by the use of a gas turbine / steam turbine cyclus.
  • US patent No. 4.296.350 discloses the production of mechanical and electrical power combined with synthesis or fuel gas in a partial oxidation process by integration combustion and steam turbines.
  • the side product evaporated prior to condensed natural gas is brought through pipelines to the gas consumers.
  • the conversion of the synthesis gas to synfuel is not disclosed.
  • US patent No. 4.359.871 discloses a process and an apparatus for the cooling of natural gas.
  • the distance to the site of use is long and transport of gas through pipelines to these will require immense investments and pipelines which will be uneconomical. Further, the sites of bringing ashore may be far away from suitable energy sources which are required in the further processing of the natural gas brought ashore.
  • This problem may be solved by a process as disclosed in the introduction wherein • unreacted natural gas or other hydrocarbonous gas is fed to a plant for converting the starting material via a hydrogen or carbon monoxide containing gas, particularly a synthesis gas, to a stream of conversion products comprising a major part of the chemical reaction products, and an exhaust stream comprising a major part of unreacted amounts of carbon monoxide, hydrogen or synthesis gas, residual amounts of low molecular products, steam, carbondioxide and inert components, • the starting material and optionally the exhaust gas stream from the gas conversion step are combined with an oxygen containing gas, preferably air, and then fed to a power plant for the production of mechanical or electrical power for operating the machinery of the integrated plant and for export, and for the production of a warm exhaust gas, and • additionally natural gas is fed to a plant of recovery/separation or liquefaction of the single components of the natural gas, and that at least part of the required amount of power for this object is fed to the plant from the power plant or the conversion
  • the conversion plant is fed the exhaust gas from gas power plant as an heat exchange medium to the preheating step for heating the natural gas starting material for the preparation of the carbonmonoxide containing gas.
  • a further preferred aspect of the process of the invention is the separation of air in an air separation plant for the preparation of an oxygen rich stream of gas which is reacted with the heated natural gas and optionally steam in the conversion plant for the preparation of a warm synthesis gas.
  • the required amount of energy for this aim is supplied to the air separation plant from the gas power plant or conversion plant.
  • the use of a plant for the production of LNG or NGL (Natural Gas Liquids) components are preferred as a plant for the recovery or liquefaction of the single components of the natural gas.
  • a preferred aspect of the invention is that carbondioxide present in the Natural Gas being fed to the plant of recovery/separation or liquefaction of the single components of the natural gas starting material is separated from the gas stream in a separation unit and fed to the stream of other natural gas starting material to the conversion plant through a pipe.
  • a further preferred aspect of the process of the invention is the separation of carbon dioxide residing in the exhaust gas stream from the conversion plant or in the exhaust gas stream from the power plant from said gas stream and is fed to the stream of natural gas starting material to the conversion plant. It is further preferred that cooling of the plant for recovery or liquefaction of the single components of the natural gas starting material at least partly is effected by heat exchange with cold fluid streams obtained in the air separation plant.
  • a further preferred aspect comprises that the natural gas starting material being fed to the conversion plant is heated in a preheating unit/furnace to a temperature of at least 500°C and reacted with an oxygenous gas and optionally steam in a reforming reactor for the partial oxidation and reforming of the starting material to a warm gas composition including hydrogen, carbon monoxide, carbon dioxide, oxygen or nitrogen, whereupon the resulting warm gas composition is passed through a heat recovery unit, in which a tempered gas composition having a temperature being lower than 350°C is obtained, and the tempered gas composition is reacted in one or more reactors to chemical reaction products and exhaust streams.
  • the last mentioned reaction may be a reaction to e.g. the oxidised products methanol and dimethyl ether or may be a Fischer-Tropsch reaction resulting in alkanes or alkenes, or the reaction may also involve a further reaction to more oxygenated products, e.g. a carbonylation of methanol to acetic acid.
  • a preferred embodiment may be the presence of a synthesis gas composition in the reforming plant as a starting material for the preparation of Fischer-Tropsch products.
  • a plant designed for the carbonylation and hydrocarbonylation of a suitable starting material can be used.
  • a further aspect may be that part of the exhaust stream from the last step of the conversion plant is recycled through a conduit to a previous step of the process, e.g. that it is admixed with the preheated natural gas and entering the reforming reactor with this.
  • a preferred aspect is further that carbon dioxide which is recovered from the natural gas starting material which is fed to the plant for recovery/separation or liquefaction of single components of the natural gas starting material, respectively carbondioxide as a part of the exhaust gas stream from the conversion plant is recycled to the inlet stream to the conversion plant, and that carbonmonoxide is recovered from the carbon monoxide containing gas being produced in the conversion plant and is used for the carbonylation of a suitable starting material.
  • heat power being released by cooling of the warn gas composition being passed through the heat recovery unit is converted to further amounts of mechanical or electrical power.
  • compressed air for the preparation of an oxygen rich gas composition being used for the oxidation of the natural gas starting material of the conversion plant is taken from the outlet to an air compressor which is connected to a gas turbine of the power plant.
  • the air separation plant and the plant for recovery/separation or liquefaction of single components of the natural gas starting material use a common cooling circuit, or that cold product liquid streams, f. I. liquefied nitrogen, is heat exchanged against the gas or liquid streams entering said above mentioned plants.
  • NGL-components liquid components of the natural gas
  • the thus obtained NGL depleted natural gas is used as a starting material for the conversion to a carbon monoxide containing gas in the conversion plant, which conversion is performed by «gas heated reforming*.
  • the present invention relates to an integrated plant for processing and converting natural gas or other hydrocarbonous gas for the preparation of useful products including chemical reaction products and mechanical or electrical power, which integrated plant comprising:
  • an oxygen containing gas preferably air
  • LNG liquefied natural gas
  • separation plant (47) for the separation of the heavier components (ethane, propane, butane) upstream.
  • the plant comprises an air separation plant for the preparation of an oxygen enriched gas stream for the feed to the reforming reactor for reforming the preheated natural gas from the preheating means. It is also preferred that the plant for recovery/separation or liquefaction of the single components is a plant for the production of LNG or NGL components.
  • the plant comprises a separation device for the separation of gas for the plant for the recovery/separation or liquefaction of the single components of the natural gas material and gas to be led to preheating for reforming. Further a heat exchange connection between this plant and the air separation plant is preferred.
  • the preheating means is designed for heating the natural gas to at least 500°C
  • the reforming reactor is designed for partial oxidation and reforming of the natural gas to a warm gas composition including hydrogen, carbon monoxide, carbon dioxide, oxygen or nitrogen
  • the heat recovering unit is designed to provide for a tempered gas composition having a temperature below 350°C.
  • a further preferred alternative embodiment of the conversion plant comprises a plant for carbonylation or hydrocarbonylation of natural gas.
  • the gas power plant has a power production capacity substantially exceeding (e.g. more than 30 % of) the energy requirement of the plant for processing and converting natural gas into LNG.
  • a natural gas stream 8 which may include a supplement 46 from a plant for the partial liquefaction of natural gas is passed through a pipe to a preheating unit 2 having a heat supply by exhaust gas at a temperature above 600°C through a pipe 33 from a gas power plant 30 situated close by.
  • the exhaust gas is passed in a unit 2 through a heat exchange plant for efficient transfer of heat to the natural gas to be heated.
  • a plant for further direct heating of the preheating unit may be provided.
  • the exhaust gas is vented to the atmosphere after the delivery of heat to the preheating unit.
  • the preheated natural gas at a temperature of at least 600°C is then passed through conduits 3 to a reforming reactor 4.
  • This reforming reactor is simultaneously fed oxygen enriched gas from an air separator 20 which is again fed atmospheric air from the surroundings to an inlet 21 , the feed of the oxygen enriched gas is indicated by 22.
  • the reforming in the reforming reactor 4 is run under conditions which are closer defined in: • I. Dybkjasr, «Tubular reforming and autothermal reforming of natural gas - an overview of available processes)), Fuel Processing Technology Vol. 42, pp 85- 107 (1995). • B.M. Tindall and M.A. Crews, «Alternative technologies to steam-methane reforming)), (Hydrocarbon processing, 75, Nov 1995). • A. Solbakken, «Synthesis gas production)), (Natural Gas Conversion pp 447- 455, A. Holmen et al. (ed.). Elsevier Publ. 1991).
  • the cooled synthesis gas is then passed through a pipe 10 to a Fischer-
  • the Fischer-Tropsch reaction of the Fischer-Tropsch synthesis plant will include a cobalt catalyst, e.g. a cobalt catalyst containing rhenium, which, in addition to cobalt, may include parts of rhenium and thorium oxide as disclosed in European patent application 0220343 A-1 , or Fe-Co-spinels as e.g. disclosed in the European Patent Application No. 0216972 A-1.
  • the catalyst may exist in a fixed bed as well as in a suspended form in the process.
  • Typical operation conditions for Fischer-Tropsch conversion are: 1. Total pressure of 5-80 bar, preferably 10-50 bar, particularly 20-40 bar, 2. Space velocity (the inverse of residence time): 100-20 000 vol.
  • Ratio H 2 /CO (inlet) 1 ,0-3,0, preferably 1 ,5-2,5, particularly 1 ,7-2,1.
  • the synfuel produced is recovered as the product from the Fischer-Tropsch reaction through the outlet 12. This synfuel will be subject to a further refining process depending on the intended use, but this refining is not considered part of the present invention and is not disclosed herein. Fuel gas is recovered from the Fischer-Tropsch synthesis through the outlet
  • Part of this gas stream may be recycled to a conduit 15 to the process, mixed with the preheated gas and together with this, passed to the reforming reactor.
  • the residual part is passed through a pipe 14 and mixed with natural gas fed through a conduit 32 to a gas power plant 30 which is simultaneously supplied with fuel air through a pipe 31.
  • the gas power plant produces, by combustion of the mixture of natural gas and fuel gas from the Fischer-Tropsch reactor, about 1800 MW, at the same time supping exhaust gas as previously mentioned for the preheating of the natural gas to the reforming.
  • LNG liquid natural gas
  • the heavier components (NGL's) of the natural gas ethane, propane, butane
  • LNG is to be produced in the process plant 40.
  • the liquefaction requires about 100 MW per year and the cooling plant will preferably be integrated with a cooling plant for the air separation plant 20 providing for the oxygen enriched gas for the reforming. This plant requires about 200 MW per year.
  • the non-liquefied part of the gas from 45 is passed though a pipe 46 to the inlet of the preheating of the preheating plant 2 ad is thus led with an amount of 4 giga standard m 3 per year nature gas through 8 to the preheating.
  • a cryogenic process for the separation of air or preparation of nitrogen (and which concomitantly will result in an oxygen enriched stream of air) which can be used in the present air separation plant is e.g. described in the Norwegian publication for opposition No. 177728.
  • a process for the preparation of intermediate distillates in Fischer-Tropsch synthesis with cobalt catalysts including parts of zirconium, titanium and chromium, followed by a hydrogenation conversion of the total synthesised products on a born noble-metal catalyst is disclosed in the European patent application 0147873 A-1 , and the conditions for the preparation of methanol from synthesis gas, is e.g. disclosed in the European patent application 0317035 A-2.
  • a plant according to the present invention of the kind disclosed herein provides an integrated plant for the production of synfuel which, in addition to produce gas power in considerably economical amount, also results in exhaust gas which may be used for preheating the plant, the exhaust gas from the synfuel production constituting part of the fuel for the gas power plant to obtain a maximum utilisation of products and side-products from this plant.
  • the integrated plant comprises a LNG plant partially producing liquid natural gas which may be transported, e.g. by tankers equipped for this purpose, to remove sites of consumption, and simultaneously part of the gas which can not be liquefied, to the synfuel process itself.

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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)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Cette invention se rapporte à un procédé et à une installation intégrée à utiliser dans la préparation de combustible synthétique et de gaz naturel liquéfié et dans la production d'électricité. Une partie de l'énergie ainsi produite est utilisée pour les étapes du procédé nécessitant de l'énergie, alors que la partie restante est exportée à d'autres fins.
PCT/NO1998/000024 1997-01-24 1998-01-23 Procede et installation integree pour la production de combustible de synthese, de gaz naturel liquefie et de courant electrique WO1998036038A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58865/98A AU5886598A (en) 1997-01-24 1998-01-23 A process and an integrated plant for the production of synfuel, lng and electrical power

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO970322 1997-01-24
NO970322A NO970322L (no) 1997-01-24 1997-01-24 FremgangsmÕte og integrert prosessanlegg for fremstilling av synfuel, LNG og el-kraft

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WO1998036038A1 true WO1998036038A1 (fr) 1998-08-20

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Cited By (22)

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EP1004746A1 (fr) * 1998-11-27 2000-05-31 Shell Internationale Researchmaatschappij B.V. Procédé de préparation d' hydrocarbures liquides
WO2001010979A1 (fr) * 1999-08-05 2001-02-15 Atlantic Richfield Company Processus integre permettant de convertir un gaz hydrocarbone en liquides
WO2001036357A1 (fr) * 1999-11-19 2001-05-25 Den Norske Stats Oljeselskap A.S Cogeneration de methanol et d'energie electrique
WO2003062724A1 (fr) * 2002-01-18 2003-07-31 Bp Corporation North America Inc. Traitement integre du gaz naturel en produits liquides
US6673845B2 (en) 2001-02-01 2004-01-06 Sasol Technology (Proprietary) Limited Production of hydrocarbon products
WO2004031669A1 (fr) * 2002-09-30 2004-04-15 Bp Corporation North America Inc. Systeme et procede a faible taux d'emission de dioxyde de carbone permettant de fournir de l'energie pour une compression frigorifique et de l'energie electrique partagee pour un processus de liquefaction des hydrocarbures legers
JP2004156899A (ja) * 2002-11-01 2004-06-03 L'air Liquide Sa Pour L'etude & L'exploitation Des Procedes Georges Claude 空気分離および天然ガス液化の複合プラント
EP1426718A2 (fr) * 2002-11-13 2004-06-09 L'Air Liquide S. A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Procédé intégré et dispositif pour la séparation d'air
FR2861164A1 (fr) * 2003-10-16 2005-04-22 Inst Francais Du Petrole Procede de liquefaction et de conversion d'un gaz naturel
WO2005093017A1 (fr) * 2004-03-22 2005-10-06 Bp Corporation North America Inc. Compositions combustibles comprenant du gaz naturel et des hydrocarbures synthetiques, et leurs procedes de preparation
US7131272B2 (en) 2002-09-30 2006-11-07 Bp Corporation North America Inc. Reduced carbon dioxide emission system and method for providing power for refrigerant compression and electrical power for a light hydrocarbon gas liquefaction process using cooled air injection to the turbines
US7168265B2 (en) 2003-03-27 2007-01-30 Bp Corporation North America Inc. Integrated processing of natural gas into liquid products
US7396972B2 (en) 2005-08-25 2008-07-08 Exxonmobil Chemical Patents Inc. Methanol feed for producing olefin streams
US7451618B2 (en) 2001-10-25 2008-11-18 Shell Oil Company Process for liquefying natural gas and producing hydrocarbons
CN100513954C (zh) * 2003-03-27 2009-07-15 Bp北美公司 将天然气加工成液体产品的集成处理工艺
EP1197471B2 (fr) † 2000-10-13 2009-12-09 National Institute for Strategic Technology Acquisition and Commercialization Procédé et dispositif de production de gaz de synthèse
EP2438980A1 (fr) * 2010-10-06 2012-04-11 Silicon Fire AG Procédé et dispositif de préparation et d'installation de méthanol à base d'hydrogène à des fins de dénitrification
WO2012045373A1 (fr) * 2010-10-06 2012-04-12 Silicon Fire Ag Procédé et appareil pour la synthèse intégrée de méthanol dans une installation
WO2018087500A1 (fr) * 2016-11-14 2018-05-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Intégration d'un procédé de liquéfaction de gaz naturel dans un procédé de production de gaz de synthèse
WO2018087496A1 (fr) * 2016-11-14 2018-05-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé de production de gaz de synthèse pour la mise en œuvre d'une liquéfaction de gaz naturel
WO2018087499A1 (fr) * 2016-11-14 2018-05-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Mise en œuvre de la vapeur d'un procédé de production de gaz de synthèse pour réchauffer des vapeurs de gaz naturel
WO2018087497A1 (fr) * 2016-11-14 2018-05-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé de liquéfaction de gaz naturel combiné à une production de gaz de synthèse

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EP1004746A1 (fr) * 1998-11-27 2000-05-31 Shell Internationale Researchmaatschappij B.V. Procédé de préparation d' hydrocarbures liquides
WO2001010979A1 (fr) * 1999-08-05 2001-02-15 Atlantic Richfield Company Processus integre permettant de convertir un gaz hydrocarbone en liquides
AU774815B2 (en) * 1999-08-05 2004-07-08 Atlantic Richfield Company Integrated process for converting hydrocarbon gas to liquids
US6809121B1 (en) 1999-11-19 2004-10-26 Statoil Asa Cogeneration of methanol and electrical power
WO2001036357A1 (fr) * 1999-11-19 2001-05-25 Den Norske Stats Oljeselskap A.S Cogeneration de methanol et d'energie electrique
EP1197471B2 (fr) † 2000-10-13 2009-12-09 National Institute for Strategic Technology Acquisition and Commercialization Procédé et dispositif de production de gaz de synthèse
US6673845B2 (en) 2001-02-01 2004-01-06 Sasol Technology (Proprietary) Limited Production of hydrocarbon products
US7451618B2 (en) 2001-10-25 2008-11-18 Shell Oil Company Process for liquefying natural gas and producing hydrocarbons
WO2003062724A1 (fr) * 2002-01-18 2003-07-31 Bp Corporation North America Inc. Traitement integre du gaz naturel en produits liquides
US6743829B2 (en) 2002-01-18 2004-06-01 Bp Corporation North America Inc. Integrated processing of natural gas into liquid products
CN100404987C (zh) * 2002-01-18 2008-07-23 Bp北美公司 天然气转变为液体产品的一体化工艺
US7243510B2 (en) 2002-09-30 2007-07-17 Bp Corporation North America Inc. Reduced carbon dioxide emission system and method for providing power for refrigerant compression and electrical power for a light hydrocarbon gas liquefaction process
CN102345966A (zh) * 2002-09-30 2012-02-08 Bp北美公司 减少二氧化碳排放物的系统和方法
WO2004031669A1 (fr) * 2002-09-30 2004-04-15 Bp Corporation North America Inc. Systeme et procede a faible taux d'emission de dioxyde de carbone permettant de fournir de l'energie pour une compression frigorifique et de l'energie electrique partagee pour un processus de liquefaction des hydrocarbures legers
US7131272B2 (en) 2002-09-30 2006-11-07 Bp Corporation North America Inc. Reduced carbon dioxide emission system and method for providing power for refrigerant compression and electrical power for a light hydrocarbon gas liquefaction process using cooled air injection to the turbines
AU2003299156B2 (en) * 2002-09-30 2008-05-29 Bp Corporation North America Inc. Reduced carbon dioxide emission system and method for providing power for refrigerant compression and electrical power for a light hydrocarbon gas liquefaction process
JP2004156899A (ja) * 2002-11-01 2004-06-03 L'air Liquide Sa Pour L'etude & L'exploitation Des Procedes Georges Claude 空気分離および天然ガス液化の複合プラント
US7143606B2 (en) 2002-11-01 2006-12-05 L'air Liquide-Societe Anonyme A'directoire Et Conseil De Surveillance Pour L'etide Et L'exploitation Des Procedes Georges Claude Combined air separation natural gas liquefaction plant
EP1435497A3 (fr) * 2002-11-01 2005-04-20 L'AIR LIQUIDE, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Installation combinée pour la séparation d'air et la liquéfaction de gaz naturel
EP1435497A2 (fr) * 2002-11-01 2004-07-07 L'AIR LIQUIDE, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Installation combinée pour la séparation d'air et la liquéfaction de gaz naturel
EP1426718A2 (fr) * 2002-11-13 2004-06-09 L'Air Liquide S. A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Procédé intégré et dispositif pour la séparation d'air
EP1426718A3 (fr) * 2002-11-13 2005-04-27 L'Air Liquide S. A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude Procédé intégré et dispositif pour la séparation d'air
US7168265B2 (en) 2003-03-27 2007-01-30 Bp Corporation North America Inc. Integrated processing of natural gas into liquid products
CN100513954C (zh) * 2003-03-27 2009-07-15 Bp北美公司 将天然气加工成液体产品的集成处理工艺
US7071236B2 (en) 2003-10-16 2006-07-04 Institut Francais Du Petrole Natural gas liquefaction and conversion method
FR2861164A1 (fr) * 2003-10-16 2005-04-22 Inst Francais Du Petrole Procede de liquefaction et de conversion d'un gaz naturel
WO2005093017A1 (fr) * 2004-03-22 2005-10-06 Bp Corporation North America Inc. Compositions combustibles comprenant du gaz naturel et des hydrocarbures synthetiques, et leurs procedes de preparation
US7396972B2 (en) 2005-08-25 2008-07-08 Exxonmobil Chemical Patents Inc. Methanol feed for producing olefin streams
EP2438980A1 (fr) * 2010-10-06 2012-04-11 Silicon Fire AG Procédé et dispositif de préparation et d'installation de méthanol à base d'hydrogène à des fins de dénitrification
WO2012045373A1 (fr) * 2010-10-06 2012-04-12 Silicon Fire Ag Procédé et appareil pour la synthèse intégrée de méthanol dans une installation
AU2010362092B2 (en) * 2010-10-06 2016-04-28 Silicon Fire Ag Method and apparatus for the integrated synthesis of methanol in a plant
WO2018087500A1 (fr) * 2016-11-14 2018-05-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Intégration d'un procédé de liquéfaction de gaz naturel dans un procédé de production de gaz de synthèse
WO2018087496A1 (fr) * 2016-11-14 2018-05-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé de production de gaz de synthèse pour la mise en œuvre d'une liquéfaction de gaz naturel
WO2018087499A1 (fr) * 2016-11-14 2018-05-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Mise en œuvre de la vapeur d'un procédé de production de gaz de synthèse pour réchauffer des vapeurs de gaz naturel
WO2018087497A1 (fr) * 2016-11-14 2018-05-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé de liquéfaction de gaz naturel combiné à une production de gaz de synthèse
FR3058712A1 (fr) * 2016-11-14 2018-05-18 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procede de liquefaction de gaz naturel combine a une production de gaz de synthese.
FR3058711A1 (fr) * 2016-11-14 2018-05-18 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procede de production de gaz de synthese pour la mise en œuvre d'une liquefaction de gaz naturel
FR3058713A1 (fr) * 2016-11-14 2018-05-18 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Mise en œuvre de la vapeur d'un procede de production de gaz de synthese pour rechauffer des vapeurs de gaz naturel.
FR3058714A1 (fr) * 2016-11-14 2018-05-18 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Integration d'un procede de liquefaction de gaz naturel dans un procede de production de gaz de synthese.
US11408672B2 (en) 2016-11-14 2022-08-09 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Synthesis gas production process for the implementation of a natural gas liquefaction

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NO970322D0 (no) 1997-01-24
AU5886598A (en) 1998-09-08

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