WO2024068774A1 - Production d'électricité sur site non connecté à un réseau électrique à partir de méthane ou de méthanol, avec circularité du dioxyde de carbone - Google Patents
Production d'électricité sur site non connecté à un réseau électrique à partir de méthane ou de méthanol, avec circularité du dioxyde de carbone Download PDFInfo
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- WO2024068774A1 WO2024068774A1 PCT/EP2023/076776 EP2023076776W WO2024068774A1 WO 2024068774 A1 WO2024068774 A1 WO 2024068774A1 EP 2023076776 W EP2023076776 W EP 2023076776W WO 2024068774 A1 WO2024068774 A1 WO 2024068774A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
- C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
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- 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- 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
- C10L3/08—Production of synthetic natural gas
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
- C25B3/01—Products
- C25B3/03—Acyclic or carbocyclic hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
- C25B3/01—Products
- C25B3/07—Oxygen containing compounds
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B3/00—Electrolytic production of organic compounds
- C25B3/20—Processes
- C25B3/25—Reduction
- C25B3/26—Reduction of carbon dioxide
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M16/00—Structural combinations of different types of electrochemical generators
- H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
- H01M8/0668—Removal of carbon monoxide or carbon dioxide
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- 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/38—Applying an electric field or inclusion of electrodes in the apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/40—Combination of fuel cells with other energy production systems
- H01M2250/402—Combination of fuel cell with other electric generators
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- TITLE Production of electricity on site not connected to an electricity network from methane or methanol, with circularity of carbon dioxide
- the present invention relates to an installation for producing electricity within a unit, hereinafter called “second unit”, from methane or methanol produced on another unit, hereinafter called “first unit” , with carbon dioxide recovery, the two units being located on two separate industrial sites.
- the invention will apply to the case of a first unit connected to the conventional electrical network (continental metropolitan network), preferably a land unit, and a second unit not connected to the conventional electrical network.
- the conventional electrical network continental metropolitan network
- a second unit not connected to the conventional electrical network.
- a unit not connected to the conventional electricity network we can cite for example units on aquatic sites (sea, lake or river), units located in rural areas not served by an electricity network, units located in island... and/or all mobile units.
- auxiliary elements consume energy: refrigerators, navigation lights, anchor lights, VHF, interior lighting, navigation aid devices, water pump, etc. ..
- This energy necessary for safety and comfort, is drawn from the on-board batteries which therefore need to be recharged regularly.
- An aquatic unit such as boats will have a significant energy requirement in terms of engine power.
- a fuel cell allows the production of an electric current by electrochemical reaction between a combustible fluid and oxygen in the air.
- the fuel cell is typically made up of one or more solid oxide fuel cells (or “SOFC” according to the English acronym for “Solid Oxide Fuel Cells”).
- the fuel cell device will preferably provide an output power ranging from 15 MW to 100 MW.
- a SOFC element typically consists of four layers, three of which are ceramics. A single stack made up of these four superimposed layers has a typical thickness of a few millimeters. Dozens of these piles are then superimposed in series to form a stack.
- oxygen ions formed on the cathode side are moved through a solid oxide taken as electrolyte at high temperature in order to react with the fuel gas, for example hydrogen, on the anode side.
- This electrochemical reaction leads to the production of electricity as well as the formation of carbon dioxide and water, resulting from the electrochemical reaction.
- Carbon dioxide CO2 is, however, one of the main greenhouse gases, the release of which into the atmosphere contributes to global warming. In order to reduce the environmental impact of fuel cells, it is therefore necessary to reduce carbon dioxide emissions into the atmosphere as much as possible.
- a solution of the present invention is an electricity production installation 1, comprising two units, a first unit A and a second unit B, located on two separate industrial sites with:
- the first unit A comprising a synthesis device 8 capable of producing methane or methanol 15 from hydrogen 2 and carbon dioxide 4 from the second unit B, and
- the second unit B comprising a fuel cell device 5 capable of supplying an electric current 1 from methane or methanol 15 from the first unit A and an anodic gas flow 6 comprising carbon dioxide, said battery device fuel being combined with a device 7 for capturing the carbon dioxide 17 included in the anode flow 6 and intended for the first unit A.
- the installation according to the invention may include one or more of the following characteristics, taken individually or in any technically possible combination:
- the first unit is connected to the metropolitan electricity network and the second unit is not connected to the metropolitan electricity network;
- the first unit comprises an electrolyser capable of producing hydrogen from water and electricity, and a means of liquefying methane or methanol;
- the second unit comprises, upstream of the fuel cell device, means for storing liquid methane or liquid methanol from the first unit and means for gasifying the liquid methane or liquid methanol;
- the invention also relates to a process for producing electricity using an installation as defined above and comprising the following steps: a) On the first unit, a step for producing methane or methanol from hydrogen and carbon dioxide from the second unit, b) On the second unit, a step of producing electricity and an anodic gas flow comprising carbon dioxide by means of the fuel cell device from methane or methanol from the first unit and c) On the second unit, a step of capturing carbon dioxide to form a gaseous stream of carbon dioxide used in step a) and an anodic flow depleted of carbon dioxide.
- the method according to the invention may comprise one or more of the following characteristics, taken in isolation or in any technically possible combination:
- step a the process comprises, upstream of step a), a step of producing hydrogen by electrolysis, carried out on the first unit;
- step a A step of liquefaction of the methanol or methane produced in step a), carried out on the first unit,
- the method comprises between steps b) and c) a step of cooling and condensing the anodic flow comprising carbon dioxide so as to dry said anodic flow;
- step c) the process comprises downstream of step c) a step of recycling the anodic flow depleted of carbon dioxide in the fuel cell device;
- step c) a step of liquefaction of the gas stream of carbon dioxide
- step c) the anodic flow is brought into contact with a liquid solvent capable of absorbing carbon dioxide to form the anodic flow depleted in carbon dioxide and a liquid base flow comprising the liquid solvent loaded with carbon dioxide .
- FIG 1 represents a diagram of the installation according to the invention.
- synthesis device we preferably mean a “synthesis reactor”.
- two distinct industrial sites we preferably mean two sites separated from each other by a distance greater than 30 km, preferably greater than 100 km, even more preferably a distance of several hundred kilometers.
- the invention consists of a coupling between a first unit for synthesizing a fuel, which in this case is methane or methanol, and a second unit for producing electricity.
- Synthetic methanol can be produced by different methods:
- water and CO2 are injected into an electrolyzer in order to directly produce synthetic methane.
- this process can be done in two stages: a so-called co-electrolysis stage in which the water and the CO2 are transformed into CO and H2 in a SOEC, the CO and H2 then being transformed into CH4 via thermocatalytic route.
- - Biological methanation methane synthesized biologically, that is to say using micro-organisms.
- the H2 can be sent directly to a methanizer in order to have an in-situ transformation of the CO2.
- a dedicated biological reactor is used which is supplied with H2 and CO2 in order to produce methane.
- the synthesis of methanol is carried out on one or more types of solid catalysts, preferably copper-based catalysts.
- copper-based catalysts preferably copper-based catalysts.
- Cu/ZnO/AI2O3 is the classic catalyst thanks to its excellent activity as well as its low price compared to others.
- copper is supported on alumina the selectivity towards methanol is the highest, while the highest methanol yield was observed on zinc oxide. They concluded that alumina improves methanol selectivity because it facilitates the reduction of copper species which would be responsible for the synthesis of methanol.
- the synthesis of methanol will preferably be carried out in a fixed bed tubular reactor, preferably in a tubular reactor similar to that described in document FR3103714.
- the principle of the process for producing methanol from CO2 is quite simple.
- the H2/CO2 mixture preferably preheated, is sent to the reactor, the output stream of which is directed to a separation section where the methanol (along with water and some small percentages of higher order alcohols) is condensed . Unreacted gases are returned to the reactor to maximize yield, as conversion is often around 20%.
- the methanol is finally purified by distillation.
- This reaction takes place in the presence of a catalyst, preferably nickel.
- a catalyst preferably nickel.
- the conversion of CO2 to CH4 is negligible at temperatures below 200°C.
- the synthesis of methane will preferably be carried out at a temperature between 250 and 700°C.
- the synthesis of methane will preferably be carried out in a fixed bed tubular reactor, preferably in a tubular reactor similar to that described in document FR3103714.
- the principle of the process for producing methane from CO2 is similar to that for producing methanol.
- the H2/CO2 mixture is sent to the reactor, the output stream of which is directed to a separation section where the methane is condensed. Unreacted gases are returned to the reactor to maximize yield.
- the methanol is finally purified by distillation.
- the fuel cell device consisting of one or more solid oxide fuel cells (SOFCs).
- SOFCs solid oxide fuel cells
- Each fuel cell is supplied continuously with the flow of methane or methanol injected at the level of the anode system (partial reforming takes place before injection at the level of the anodes) and with a gaseous flow rich in dioxygen injected at the level of the system of cathodes.
- the installation according to the invention may have one or more of the following characteristics:
- the first unit A is connected to the metropolitan electricity network and the second unit B is not connected to the metropolitan electricity network.
- a unit not connected to the metropolitan electricity network we can cite as an example units on aquatic sites (sea, lake or river), units located in rural areas not served by an electrical network, units located in island areas, etc. and/or all mobile units;
- the first unit A and the second unit B are two land units;
- the first unit A is a fixed unit, preferably a terrestrial unit
- the second unit B is a mobile unit, preferably an aquatic unit
- the second unit is chosen from a boat or a fixed or floating platform.
- fixed platform we mean a platform anchored in the seabed.
- the electricity provided by the fuel cell device can be used as motive power.
- the first unit A comprises an electrolyser 8 capable of producing hydrogen 2 from water 9 and electricity 10, and a means of liquefying methane or methanol 15.
- the electricity will come from a renewable energy source.
- the methane is liquefied through a series of cryogenic cycles.
- methane can also be liquefied in an "open cycle", i.e. by passing the methane itself through compressors and coolers so as to cause it to undergo expansion to generate the necessary cold.
- the second unit B comprises, upstream of the fuel cell device 5, a means 14 for storing liquid methane or liquid methanol from the first unit A and a means 11 for gasifying the liquid methane or liquid methanol.
- the second unit B comprises a means 12 for liquefying the carbon dioxide 17 coming from the carbon dioxide capture device 7.
- the second unit will preferably include a compressor between the carbon dioxide capture device 7 and the liquefaction means 12.
- the liquefied carbon dioxide 16 can then be stored on the second unit B before being sent to the first unit A, then stored on this first unit A in a storage means 13 and finally used in the methane synthesis device 8 or methanol.
- the gasification means 11 of liquid methane or liquid methanol and the liquefaction means 12 of carbon dioxide are combined into a single heat exchange device. Carbon dioxide transfers its heat to liquid methane or liquid methanol and vice versa, thus carbon dioxide is liquefied while methane or methanol is gasified.
- the second unit comprises, upstream of the carbon dioxide capture device 7, a post-treatment, cooling and condensation device intended to cool and dry the anodic gas flow 6 to form a dry anodic flow.
- the carbon dioxide capture device 7 comprises: - an absorber intended to bring the dry anodic flow into contact with a liquid solvent capable of absorbing carbon dioxide to form at the head of the absorber the anodic flow depleted in carbon dioxide and at the bottom of the absorber a bottom flow liquid comprising the liquid solvent loaded with carbon dioxide,
- a tank connected to said at least one heat exchanger system intended to form at the head of the tank the stream of carbon dioxide and, at the bottom of the tank, a stream of partially regenerated liquid solvent intended to be injected into the absorber.
- the carbon dioxide capture device does not have a stripping column.
- the electrolyser will preferably be powered by a carbon-free energy source, preferably a renewable energy source.
- a carbon-free energy source preferably a renewable energy source.
- water (H20) is dissociated under the effect of the electric current, forming oxygen (02) and H+ ions; at the cathode, the H+ ions recombine and form hydrogen (H2). This hydrogen is called “green” when it is obtained from carbon-free energy.
- the electrolyzer will preferably be a proton exchange electrolyzer (PEM) or a high temperature electrolyzer (SOEC type) or Alkaline.
- PEM proton exchange electrolyzer
- SOEC high temperature electrolyzer
- the post-treatment, cooling and condensation device also makes it possible to convert at least part of the carbon monoxide present in the anodic gas flow into dihydrogen and carbon dioxide, typically by reaction with water vapor. .
- This conversion then makes it possible to limit the oxidation of the liquid solvent used in the carbon dioxide capture device by the oxidizing molecules of carbon monoxide and to increase the concentration of carbon dioxide in the anodic gas flow in order to facilitate it. capture in the capture device.
- the installation according to the invention will preferably include a means of recovering a gas flow depleted of dioxygen. This gas flow depleted of oxygen will be post-treated and/or released to the atmosphere.
- the desulfurization step will not be necessary upstream of the fuel cell because the synthesis gases (methane or methanol) do not contain it.
- the present invention also relates to a process for producing electricity at sea using an installation according to the invention and comprising the following steps: a) On the first unit A, a step of producing methane or methanol 15 from hydrogen 2 and carbon dioxide 4 from the second unit B, b) On the second unit B, a step of production d electricity 1 and an anodic gas flow 6 comprising carbon dioxide by means of the fuel cell device from methane or methanol 15 from the first unit and c) On the second unit B, a capture step 7 of carbon dioxide to form a gaseous stream of carbon dioxide 17 used in step a) and an anodic flow depleted of carbon dioxide.
- step - It comprises, upstream of step a), a step of producing hydrogen by electrolysis 8, carried out on the first unit A,
- stage a A stage of liquefaction of the methanol or methane produced in stage a), carried out on the land unit,
- steps b) and c) It comprises between steps b) and c) a step of cooling and condensing the anodic flow comprising carbon dioxide so as to dry said anodic flow;
- step c) It comprises downstream of step c) a step of recycling the anodic flow depleted of carbon dioxide in the fuel cell device;
- step c) a step of liquefaction 12 of the gas stream of carbon dioxide 17.
- the gas stream of carbon dioxide 17 is compressed to a pressure of between 15 and 40 bar, then cooled by heat exchange with liquid methane or liquid methanol to a temperature between -15 and -50°C before being expanded to reach the storage conditions of liquid CO2 (for example: 17 bar and -28°C).
- the liquid CO2 16 can initially be stored on the second unit then on the first unit in the storage means 13 before being used in the methane or methanol synthesis device 8;
- the gasification step 11 of the methane or methanol is carried out by heat exchange with the thermal gas stream;
- the anodic flow depleted in carbon dioxide has a carbon dioxide content of 0% to 80% by volume, preferably 20% to 70% by volume, even more preferably 40% to 60% by volume;
- step c) the anodic flow is brought into contact with a liquid solvent capable of absorbing carbon dioxide to form the anodic flow depleted in carbon dioxide and a liquid base flow comprising the liquid solvent loaded with carbon dioxide ;
- the carbon dioxide absorbed in the liquid bottom flow is released by heating the liquid bottom flow to form part of the carbon dioxide stream used in step a) and a partially regenerated liquid solvent stream;
- the methane or methanol is heated by heat exchange with the gaseous stream of carbon dioxide;
- At least 80% of the carbon dioxide produced during the operation of the process is recovered in the gaseous stream of carbon dioxide, preferably at least 90% by moles, more preferably from 90% to 99% by moles.
- the installation according to the invention will also comprise a closed heat exchange circuit comprising a heat transfer fluid intended to be placed in heat exchange on the one hand with a liquid base flow comprising the liquid solvent charged with carbon dioxide, at said at least one heat exchanger system, and on the other hand with the anodic gas flow and/or the cathodic gas flow
- the methane or methanol introduced into the fuel cell device will be at a pressure between atmospheric pressure and 2 bars, preferably at a temperature between 300°C and 500°C.
- the gas flow rich in dioxygen typically has a dioxygen content of at least 10% by volume, preferably 15% to 25% by volume of dioxygen.
- the gas flow rich in dioxygen is an air flow.
- the gas flow rich in dioxygen is at a pressure between atmospheric pressure and 2 bars.
- the liquid solvent used in the capture device is chosen from aqueous amine solutions capable of adsorbing carbon dioxide.
- aqueous amine solutions capable of absorbing carbon dioxide are well known to those skilled in the art and will not be further described here.
- aqueous amine solutions suitable for the invention mention may in particular be made of solutions composed of one or more of the following compounds: monoethanolamine, diethanolamine, N-methyldiethanolamine, piperazine, 2-Amino-2-methylpropan-1 -ol, Bis(2-hydroxypropyl)amine, 1 -methylpiperazine, dimethylaminoethanol.
- the liquid solvent absorbs the carbon dioxide present in the dry anodic flow to form a liquid bottom flow consisting of the liquid solvent loaded with carbon dioxide, and at the top of the absorber 200, the anodic flow depleted in carbon dioxide.
- the anodic flow depleted in carbon dioxide typically comprises from 10% to 60% by volume of carbon dioxide CO2, preferably from 30% to 50% by volume.
- the liquid bottom stream consisting of the liquid solvent loaded with carbon dioxide is then heated to form a preheated bottom stream.
- the preheated bottom stream 206 is then reheated so that the carbon dioxide absorbed in the liquid solvent is partially released in gaseous form.
- the preheated bottom flow heated, preferably by heat exchange, to a temperature greater than 70°C, preferably greater than 80°C, in particular close to 90°C.
- the heated bottom flow is introduced into the flask to form, at the head of the flask, the stream of carbon dioxide, and at the bottom of the flask, a stream of liquid solvent depleted in carbon dioxide.
- the liquid solvent stream depleted in carbon dioxide is then reinjected into the absorber for recycling.
- the stream of liquid solvent depleted in carbon dioxide taken from the bottom of the flask then includes the starting liquid solvent as well as part of the absorbed carbon dioxide which was not released by the expansion in the flask 216.
- At least 15% of the liquid solvent is still loaded with carbon dioxide, preferably at least 35%, more preferably 55 to 65%.
- the liquid solvent stream depleted in carbon dioxide has a carbon dioxide content greater than or equal to 0.1 mole of CO2 per mole of amine solvent on a dry basis, preferably from 0.15 to 0.4 mole of CO2 per mole of amine solvent on a dry basis, even more preferably from 0.30 to 0.35 moles of CO2 per mole of amine solvent on a dry basis.
- the stream of liquid solvent depleted in carbon dioxide is cooled, preferably by heat exchange with the liquid bottom flow coming from the absorber.
- the liquid solvent stream depleted in carbon dioxide can also undergo an additional cooling step before its injection into the absorber, for example for example by passing through a heat exchanger, using an external refrigerant source.
- carbon circularity is implemented: the carbon dioxide produced by the fuel cell is reused in the methane or methanol synthesis device.
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23782210.1A EP4595136A1 (fr) | 2022-09-27 | 2023-09-27 | Production d'électricité sur site non connecté à un réseau électrique à partir de méthane ou de méthanol, avec circularité du dioxyde de carbone |
| CN202380065622.XA CN119866558A (zh) | 2022-09-27 | 2023-09-27 | 不连接到电网的由甲烷或甲醇进行并具有二氧化碳循环性的现场发电 |
| KR1020257013193A KR20250075647A (ko) | 2022-09-27 | 2023-09-27 | 전력망에 연결되지 않고 이산화탄소 순환을 갖는 메탄 또는 메탄올로부터의 현장 발전 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2209787A FR3140220A1 (fr) | 2022-09-27 | 2022-09-27 | Production d’électricité sur site non connecté à un réseau électrique à partir de méthane ou de méthanol, avec circularité du dioxyde de carbone |
| FRFR2209787 | 2022-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024068774A1 true WO2024068774A1 (fr) | 2024-04-04 |
Family
ID=84569456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/076776 Ceased WO2024068774A1 (fr) | 2022-09-27 | 2023-09-27 | Production d'électricité sur site non connecté à un réseau électrique à partir de méthane ou de méthanol, avec circularité du dioxyde de carbone |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4595136A1 (fr) |
| KR (1) | KR20250075647A (fr) |
| CN (1) | CN119866558A (fr) |
| FR (1) | FR3140220A1 (fr) |
| WO (1) | WO2024068774A1 (fr) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6432565B1 (en) * | 1997-08-26 | 2002-08-13 | Shell Oil Company | Producing electrical energy from natural gas using a solid oxide fuel cell |
| CA2980664A1 (fr) * | 2015-03-30 | 2016-10-06 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Systeme de production d'electricite par pile a combustible sofc avec circulation des especes carbonees en boucle fermee |
| WO2017183388A1 (fr) * | 2016-04-20 | 2017-10-26 | 株式会社日立製作所 | Moteur à combustion interne |
| FR3074971A1 (fr) * | 2017-12-13 | 2019-06-14 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Systeme reversible de stockage et destockage d'electricite comprenant un convertisseur electrochimique (sofc/soec) couple a un systeme de stockage/destockage d'air comprime (caes) |
| FR3103714A1 (fr) | 2019-11-28 | 2021-06-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Reacteur tubulaire a lit fixe |
| AU2021203267A1 (en) * | 2020-05-21 | 2021-12-09 | Ian Porter | A method for reducing greenhouse gas emissions |
-
2022
- 2022-09-27 FR FR2209787A patent/FR3140220A1/fr active Pending
-
2023
- 2023-09-27 KR KR1020257013193A patent/KR20250075647A/ko active Pending
- 2023-09-27 EP EP23782210.1A patent/EP4595136A1/fr active Pending
- 2023-09-27 CN CN202380065622.XA patent/CN119866558A/zh active Pending
- 2023-09-27 WO PCT/EP2023/076776 patent/WO2024068774A1/fr not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6432565B1 (en) * | 1997-08-26 | 2002-08-13 | Shell Oil Company | Producing electrical energy from natural gas using a solid oxide fuel cell |
| CA2980664A1 (fr) * | 2015-03-30 | 2016-10-06 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Systeme de production d'electricite par pile a combustible sofc avec circulation des especes carbonees en boucle fermee |
| WO2017183388A1 (fr) * | 2016-04-20 | 2017-10-26 | 株式会社日立製作所 | Moteur à combustion interne |
| FR3074971A1 (fr) * | 2017-12-13 | 2019-06-14 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Systeme reversible de stockage et destockage d'electricite comprenant un convertisseur electrochimique (sofc/soec) couple a un systeme de stockage/destockage d'air comprime (caes) |
| FR3103714A1 (fr) | 2019-11-28 | 2021-06-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Reacteur tubulaire a lit fixe |
| AU2021203267A1 (en) * | 2020-05-21 | 2021-12-09 | Ian Porter | A method for reducing greenhouse gas emissions |
Non-Patent Citations (1)
| Title |
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| MICHAEL STERNER: "Bioenergy and renewable power methane in integrated 100% renewable energy systems", DISSERTATION, 23 September 2009 (2009-09-23), XP055602829, Retrieved from the Internet <URL:https://www.uni-kassel.de/upress/online/frei/978-3-89958-798-2.volltext.frei.pdf> [retrieved on 20190705] * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119866558A (zh) | 2025-04-22 |
| FR3140220A1 (fr) | 2024-03-29 |
| KR20250075647A (ko) | 2025-05-28 |
| EP4595136A1 (fr) | 2025-08-06 |
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