EP3864194A1 - Method and apparatus for oxygen recovery and use in oxygen-aided combustion, and use of the method - Google Patents

Method and apparatus for oxygen recovery and use in oxygen-aided combustion, and use of the method

Info

Publication number
EP3864194A1
EP3864194A1 EP19871379.4A EP19871379A EP3864194A1 EP 3864194 A1 EP3864194 A1 EP 3864194A1 EP 19871379 A EP19871379 A EP 19871379A EP 3864194 A1 EP3864194 A1 EP 3864194A1
Authority
EP
European Patent Office
Prior art keywords
oxygen
carbon dioxide
recovered
combustion
conveyed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19871379.4A
Other languages
German (de)
French (fr)
Other versions
EP3864194A4 (en
Inventor
Ari Piispanen
Pasi Vainikka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soletair Power Oy
Original Assignee
Soletair Power Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soletair Power Oy filed Critical Soletair Power Oy
Publication of EP3864194A1 publication Critical patent/EP3864194A1/en
Publication of EP3864194A4 publication Critical patent/EP3864194A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/50—Carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2/00—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
    • C10G2/50—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon dioxide with hydrogen
    • 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
    • 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
    • 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
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B15/081—Supplying products to non-electrochemical reactors that are combined with the electrochemical cell, e.g. Sabatier reactor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • 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

Definitions

  • the invention relates to the method defined in claim 1 and the apparatus defined in claim 10 for recovering and using oxygen in combustion utilising oxygen as well as the use of the method defined in claim 13.
  • the object of the invention is to present a novel method for recovering oxygen in connection with the processing of carbon dioxide and to utilise the oxygen recovered efficiently. Another object of the invention is to present a novel apparatus for recovering and utilising oxygen energy-efficiently . A further object of the invention is to present a method and an apparatus for improving combustion utilising oxygen and to reduce emissions. A further object of the invention is to present an environmentally friendly and essentially emission-free way of using internal combustion engines, fuel cells and turbines for generating heat and electricity. A further object of the invention is to enhance the overall utilisation of carbon dioxide recovered from the air, a gas or a fluid.
  • Oxygen is formed in connection with the processing of recovered carbon dioxide, the oxygen is recovered and the oxygen is conveyed to combustion utilising oxygen.
  • oxygen is formed in connection with the processing of carbon dioxide recovered from the air, a gas or a fluid, the oxygen is recovered and the oxygen is conveyed to combustion utilising oxygen.
  • the carbon dioxide is recovered from the air, for example, outdoor air, air conveyed into a building and/or air circulated in a building, from a gas, for example, a combustion gas and/or flue gas, or from a fluid, for example water, and pure oxygen is formed in connection with the processing of the recovered carbon dioxide.
  • the pure oxygen is recovered and the oxygen is conveyed to combustion utilising oxygen.
  • pure oxygen can be formed simultaneously with the recovery of carbon dioxide.
  • emissions can be reduced and cleaner combustion achieved at the combustion stage taking place by utilising oxygen.
  • the invention is, in addition, based on an apparatus comprising at least one carbon dioxide processing device for processing recovered carbon dioxide to form a chemical compound, at least one oxygen-forming device for forming oxygen in connection with the processing of the recovered carbon dioxide, and at least one combustion device into which the oxygen is conveyed and in which the fuel is combusted in the presence of oxygen.
  • combustion by utilising oxygen refers to any combustion taking place in the presence of oxygen.
  • the method comprises an oxygen-forming stage.
  • oxygen is formed of water.
  • oxygen is formed of water recovered in connection with the processing of carbon dioxide.
  • oxygen is formed by means of electrolysis.
  • oxygen and hydrogen are preferably formed of water.
  • the hydrogen formed in the electrolysis is preferably conveyed to the carbon dioxide processing stage in which a chemical compound is formed of carbon dioxide by means of hydrogen.
  • the water required for the electrolysis may be derived from the water recovered from the processing of carbon dioxide, such as from the water recovered at the carbon dioxide processing stage and/or from the water separated in connection with the recovery of the carbon dioxide.
  • the water required for the electrolysis may be derived partly or completely, or alternatively intermittently, from any suitable raw material source, for example, the water supply system, rainwater system or exhaust air system or other suitable source.
  • the apparatus comprises at least one electrolyser serving as an oxygen-forming device.
  • Oxygen and hydrogen are preferably formed of water in the electrolyser.
  • the apparatus comprises at last one means for conveying the water recovered at the carbon dioxide processing stage and/or from the air, for example, from air conveyed into a building and air circulated in a building, or from gas, such as a combustion gas, or from water removed from a fluid, into the electrolyser .
  • Carbon dioxide is preferably recovered from the air, a gas or a fluid and supplied to the carbon dioxide processing stage.
  • carbon dioxide is processed by hydrogen processing, for example by means of hydrogen, at the processing stage, in order to form a chemical compound.
  • a chemical compound such as an organic and/or inorganic compound, is formed of carbon dioxide at the carbon dioxide processing stage.
  • a hydrocarbon is formed at the carbon dioxide processing stage.
  • methane (CH 4) is formed at the carbon dioxide processing stage.
  • at the carbon dioxide processing stage is formed another suitable hydrocarbon or, for example, an alcohol-based compound or other oxygen-containing compound.
  • carbon dioxide processing is carried out by means of chemical synthesis either in the presence of a catalyst or without a catalyst.
  • At the carbon dioxide processing stage can be used any device known in the art as such and suitable for the purpose, in which device can preferably be arranged conditions suitable for the process or synthesis, such as pressure and temperature.
  • the hydrogen formed in electrolysis is conveyed to the carbon dioxide processing stage.
  • the apparatus comprises means for conveying hydrogen from the electrolyser to the carbon dioxide processing device.
  • the chemical compound produced at the carbon dioxide processing stage for example a hydrocarbon
  • hydrocarbon for example methane (CfU)
  • CfU methane
  • the recovered carbon dioxide for example, carbon dioxide recovered from the combustion gases of combustion utilising oxygen
  • the recovered carbon dioxide can be stored and utilised later, for example, at the carbon dioxide processing stage and/or in producing a hydrocarbon .
  • recovered water is conveyed from the carbon dioxide processing stage to electrolysis, where oxygen and hydrogen are formed of the water.
  • the apparatus comprises at least one water supply device for supplying or circulating water from the carbon dioxide processing device to the oxygen-forming device, for example, an electrolyser .
  • the heat generated at the carbon dioxide processing stage is conveyed as process heat to the desired process stages.
  • Separating carbon dioxide from the air, a gas or a fluid can be carried out by means of any separation device known as such in the art and suitable for the purpose.
  • the separation device may be any separation or recovery device known as such in which the separation of carbon dioxide from the air, a gas or a fluid may be based on a chemical process, a physical process, an absorption process, a dissolving process, a membrane process, other suitable process or their combinations.
  • the separation of carbon dioxide from the air or a gas can be carried out by means of a scrubber.
  • the separation of carbon dioxide from the air, a gas or a fluid can be carried out by means of a solid chemically active substance.
  • the apparatus comprises a separation device for separating carbon dioxide from the air, a gas or a fluid, at least one carbon dioxide processing device, and at least one means for recovering carbon dioxide from the separation device and conveying it to the processing device.
  • carbon dioxide is recovered from the air, a gas or a fluid and the carbon dioxide is conveyed to the carbon dioxide processing stage.
  • carbon dioxide is recovered from the air, such as the air conveyed into a building and/or circulated in a building, and the carbon dioxide is conveyed to the carbon dioxide processing stage.
  • carbon dioxide is recovered from a gas, such as a combustion gas or a flue gas, for example, the combustion gas from an internal combustion engine, fuel cell or turbine, and the carbon dioxide is conveyed to the carbon dioxide processing stage.
  • the carbon dioxide is recovered from a fluid, which may be a mixture of a liquid and a gas or a pure liquid, for example, seawater, and the carbon dioxide is conveyed to the carbon dioxide processing stage .
  • water is removed from the air, a gas or a fluid in connection with the recovery of carbon dioxide and the water is conveyed to electrolysis, where oxygen and hydrogen are formed of the water.
  • water is removed from a gas, for example, a combustion gas or a flue gas, in connection with the recovery of carbon dioxide, and the water is conveyed to electrolysis.
  • water is removed from the air, such as the air conveyed into a building and/or the air circulated in a building, in connection with the recovery of carbon dioxide and the water is conveyed to electrolysis, where oxygen and hydrogen are formed of the water.
  • the humidity of indoor air in the building can thus be reduced.
  • the apparatus comprises at least one other water supply device for conveying water removed from the air, a gas or a fluid to an oxygen-forming device, for example, an electrolyser .
  • the oxygen formed is preferably conveyed to combustion utilising oxygen.
  • the apparatus comprises an oxygen supply device for conveying the oxygen from the oxygen-forming device to the combustion device.
  • the oxygen formed is stored intermediately and used after intermediate storage in combustion utilising oxygen.
  • the oxygen formed is conveyed to combustion taking place in an internal combustion engine, fuel cell or turbine by utilising oxygen, where energy, such as kinetic energy and thermal energy are produced of the fuel.
  • the internal combustion engine may be any internal combustion engine.
  • the internal combustion engine is a diesel engine or a fuel oil engine.
  • the internal combustion engine is a piston engine.
  • the internal combustion engine is a gas engine.
  • the turbine is a gas turbine.
  • a fuel cell or a turbine fuel can used to produce thermal energy, for example, for providing real estate heating or district heating. Any fuel together with the pure oxygen formed can be used as fuel in an internal combustion engine, fuel cell or turbine.
  • the fuel may be derived from any raw material, for example, fossil raw material. In one embodiment, the fuel is diesel or fuel oil or fuel made of them. Alternatively, a chemical compound produced at the processing stage of carbon dioxide, such as hydrocarbon, can be used as fuel.
  • the apparatus comprises at least one generator which converts the mechanical kinetic energy of an internal combustion engine, fuel cell or turbine into an electric current.
  • the exhaust gases of an internal combustion engine, fuel cell or turbine are conveyed to a refrigerating machine, for example, an absorption chiller.
  • a refrigerating machine for example, an absorption chiller.
  • the refrigerating machine is selected so that its operation is based on absorption cooling, where thermal energy having a temperature higher than the ambient temperature is used for the cooling.
  • carbon dioxide is recovered from the combustion gases of an internal combustion engine, a fuel cell or a turbine.
  • the recovered carbon dioxide can be stored or conveyed to the carbon dioxide processing stage according to the invention.
  • the combustion gases of an internal combustion engine for example, a diesel or piston engine, are left under pressure, that is, the pressure of the combustion gases is left higher, whereupon the liquefaction point of carbon dioxide is closer to zero, thus providing significant energy savings in liquefaction .
  • the oxygen formed can be conveyed to different stages of the process, such as the carbon dioxide processing stage, should there be need for it.
  • the oxygen formed is stored intermediately, for example in bottles, and used for the desired purpose, for example, for combustion utilising oxygen, as industrial oxygen or as a bottled oxygen product.
  • the heat generated in forming oxygen and hydrogen is conveyed to the carbon dioxide separation stage, for heating a building, for example, to the service water of a building, or to a suitable process stage.
  • any available energy can be used as the energy required for electrolysis.
  • the energy generated by a wind turbine or a solar cell device is used as the electricity required for electrolysis.
  • so-called surplus electricity which is electricity generated in excess with respect to the electricity consumption, is used as the electricity required for electrolysis.
  • electrolysis is used flexibly to regulate the frequency of the electrical grid. Electrolysis can, therefore, act as a buffer in electricity generation, where the electrolysis stage is implemented when surplus electricity is available.
  • the apparatus comprises a shell construction, for example, walls, a floor and a ceiling inside which the equipment parts of the apparatus can be arranged.
  • the apparatus can be arranged in a transport container or similar easily movable and/or transportable space.
  • the apparatus functions as its own unit which can be easily moved and/or located to the desired site of use.
  • the method and apparatus according to the invention can be used in recovering carbon dioxide, in processing the indoor air of a building, in producing hydrocarbons, in recovering oxygen, in combustion utilising oxygen, in recovering carbon dioxide formed during combustion, in producing energy, in generating heat, in a property-specific energy production system, for example, a heat supply system, a building complex specific energy production system and their combinations .
  • a building complex refers to any property or building, such as a residential building, an industrial building, a warehouse, office premises, a public building or other similar building, or a consortium consisting of more than one building.
  • the different material flows can be recycled and made into new raw materials or products.
  • pure oxygen can be formed simultaneously with the recovery and/or processing of carbon dioxide.
  • oxygen can be formed ecologically of various material flows, such as recyclable and/or recovered material flows.
  • from the air can be recovered pure carbon dioxide and from it can be formed pure hydrocarbons.
  • Pure oxygen can also be formed of the water separated in the recovery or processing of carbon dioxide recovered from air.
  • High-quality hydrocarbons can be used, for example, for purposes requiring pure fuels.
  • a pure and emission-free combustion process can be achieved in combustion utilising oxygen, for example, in an internal combustion engine, fuel cell or turbine.
  • combustion utilising oxygen for example, in an internal combustion engine, fuel cell or turbine.
  • emissions can be significantly reduced with each fuel.
  • combustion utilising oxygen according to the invention significantly less or no nitrogen oxides are formed.
  • exhaust gases are not discharged into the environment, but their thermal energy and the carbon dioxide in the exhaust gases can be utilised.
  • total emissions of carbon dioxide can be reduced. Furthermore, in the process according to the invention, carbon dioxide emissions can be significantly reduced or practically no carbon dioxide emissions are produced.
  • the apparatus according to the invention can be implemented easily and cost-effectively.
  • the apparatus can also be easily incorporated in connection with buildings and building complexes.
  • FIG 1 shows an apparatus according to the invention
  • FIG. 2 shows another apparatus according to the invention.
  • oxygen (6) is formed in connection with the processing of recovered carbon dioxide (1), the oxygen (6) is recovered and conveyed to combustion utilising oxygen.
  • carbon dioxide (1) is recovered from air to be conveyed into a building and/or from air to be circulated in the building, and the recovered carbon dioxide (1) is processed with hydrogen (7) in a processing device (2) at the processing stage to form hydrocarbons (4) .
  • carbon dioxide can be recovered from gases, for example, from combustion gases.
  • the water (3) separated at the processing stage is conveyed by means of a water supply device to an oxygen-forming device, such as an electrolyser (5) .
  • the pure oxygen (6) formed is conveyed to a combustion device (8), such as an internal combustion engine, or alternatively, for example, to a fuel cell or a turbine.
  • a combustion device (8) such as an internal combustion engine, or alternatively, for example, to a fuel cell or a turbine.
  • the hydrogen formed in the electrolyser in addition to oxygen can be recycled as hydrogen (7) into the processing device (2) .
  • the electricity required for electrolysis may be, for example, surplus electricity from electricity production, for example, from a wind turbine or a solar cell device.
  • the apparatus comprises an oxygen supply device for conveying oxygen (6) from the oxygen forming device to the combustion device (8) .
  • the apparatus further comprises a fuel (9) supply device for supplying fuel to the combustion device (8) .
  • the combustion device (8) may be an internal combustion engine, such as a diesel internal combustion engine or a gas internal combustion engine, where the fuel (9), for example, diesel or methane gas is combusted in the presence of oxygen (6) .
  • the fuel may be derived from any raw material, for example, a fossil raw material, or alternatively, a chemical compound formed at the carbon dioxide processing stage, such as hydrocarbon (4), can be used as fuel.
  • the energy (11) generated, such as mechanical kinetic energy or thermal energy, is recovered.
  • Thermal energy can be utilised, for example, in property-specific heating or district heating.
  • the exhaust gases (10) produced in combustion can be conveyed by means of a suitable compressor or feeding device to a refrigerating machine (12), such as an absorption chiller, either directly or through heat recovery. If the exhaust gases are conveyed to the refrigerating machine through heat recovery, the recovered heat can be utilised in the refrigerating machine or at another desired process stage.
  • the gas (13) can be recycled by means of a gas recycling device back to the fuel supply of the internal combustion engine.
  • Carbon dioxide from the refrigerating machine can be recovered and utilised as a product or as raw material. Alternatively, carbon dioxide can be recovered from the exhaust gases and conveyed to the carbon dioxide processing stage.
  • Fig. 1 By means of the apparatus of Fig. 1 can be formed pure oxygen, which can be used in combustion utilising oxygen to achieve combustion with less emissions.
  • the exhaust gases from combustion can be used as raw material or, for example, in refrigerating machines .
  • oxygen (6) is formed in connection with the processing of the recovered carbon dioxide (1), the oxygen (6) is recovered and conveyed to combustion utilising oxygen.
  • carbon dioxide (1) is recovered from air conveyed into a building and/or air circulated in the building, and the recovered carbon dioxide (1) is processed with hydrogen (7) in a processing device (2) at the processing stage to form a chemical compound (15) which may be a hydrocarbon.
  • a processing device (2) at the processing stage to form a chemical compound (15) which may be a hydrocarbon.
  • carbon dioxide can be recovered from gases, for example, from combustion gases .
  • Water (3, 3b) separated from the air conveyed into a building and/or circulated in a building is conveyed by means of a second water supply device to an oxygen-forming device, such as an electrolyser (5) .
  • the apparatus may comprise means for removing water from the air conveyed into the building in connection with separating carbon dioxide. It may also be possible to convey water (3, 3a) separated at the processing stage to the oxygen-forming device by means of a water supply device.
  • the pure oxygen (6) formed is conveyed to a combustion device (8), such as an internal combustion engine, or alternatively to a fuel cell or turbine.
  • the hydrogen formed in the electrolyser in addition to oxygen is recycled as hydrogen (7) into the processing device (2) .
  • the electricity required for electrolysis may be, for example, surplus electricity from electricity production, for example, from a wind turbine or a solar cell device.
  • the apparatus comprises an oxygen supply device for conveying oxygen (6) from the oxygen forming device to the combustion device (8) .
  • the apparatus also comprises a fuel (9) supply device for supplying fuel to the combustion device (8) .
  • the combustion device (8) may be an internal combustion engine, such as a diesel internal combustion engine or a gas internal combustion engine, where the fuel (9), for example, diesel or methane gas, is combusted in the presence of oxygen (6) .
  • the fuel may be derived from any raw material, for example, a fossil raw material, or alternatively, a chemical compound formed at the carbon dioxide processing stage, such as hydrocarbon, can be used as fuel.
  • the energy (11) generated, such as mechanical kinetic energy or thermal energy, is recovered.
  • Thermal energy can be utilised, for example, in property-specific heating or district heating.
  • the exhaust gases (10) produced in combustion can be conveyed by means of a suitable compressor or feeding device to a refrigerating machine (12), such as an absorption chiller, either directly or through heat recovery. If the exhaust gases are conveyed to the refrigerating machine through heat recovery, the recovered heat can be utilised in the refrigerating machine or at another desired process stage.
  • the gas (13) can be recycled by means of a gas recycling device back to the fuel supply of the internal combustion engine.
  • Carbon dioxide from the refrigerating machine can be recovered and utilised as a product or as raw material. Alternatively, carbon dioxide can be recovered from the exhaust gases and conveyed to the carbon dioxide processing stage.
  • Fig. 2 With the apparatus of Fig. 2 can be formed pure oxygen, which can be used in combustion utilising oxygen to achieve combustion with less emissions.
  • the exhaust gases from the combustion can be utilised as raw material or, for example, in refrigerating machines .
  • the method and apparatus according to the invention are applicable, as different embodiments, for use in a wide range of applications in connection with combustion utilising oxygen and in connection with the processing of carbon dioxide. Furthermore, the method and apparatus according to the invention are applicable, as different embodiments, for use in connection with a wide variety of processes utilising oxygen .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The invention relates to a method and an apparatus for recovering and using oxygen in combustion utilising oxygen. According to the invention, oxygen (6) is formed in connection with the processing of the recovered carbon dioxide (1), the oxygen is recovered, and the oxygen (6) is conveyed to combustion (8) utilising oxygen. The invention further relates to the use of the method.

Description

ME THOD AND APPARATUS FOR OXYGEN RECOVERY AND USE IN OXYGEN-AIDED COMBUSTION , AND USE OF THE ME THOD
FIELD
The invention relates to the method defined in claim 1 and the apparatus defined in claim 10 for recovering and using oxygen in combustion utilising oxygen as well as the use of the method defined in claim 13.
BACKGROUND
Previously are known different methods for separating and recovering carbon dioxide from a gaseous flow or from the air. In addition, the publication WO 2017/140954 discloses the recovery of carbon dioxide from air of a building.
Previously is also known combustion utilising oxygen in various apparatuses intended for combustion. OBJECT
The object of the invention is to present a novel method for recovering oxygen in connection with the processing of carbon dioxide and to utilise the oxygen recovered efficiently. Another object of the invention is to present a novel apparatus for recovering and utilising oxygen energy-efficiently . A further object of the invention is to present a method and an apparatus for improving combustion utilising oxygen and to reduce emissions. A further object of the invention is to present an environmentally friendly and essentially emission-free way of using internal combustion engines, fuel cells and turbines for generating heat and electricity. A further object of the invention is to enhance the overall utilisation of carbon dioxide recovered from the air, a gas or a fluid. SUMMARY
The method and apparatus for recovering and using oxygen in combustion utilising oxygen as well as the use of the method according to the invention are characterised by what is disclosed in the claims.
Oxygen is formed in connection with the processing of recovered carbon dioxide, the oxygen is recovered and the oxygen is conveyed to combustion utilising oxygen.
DE TAILED DE SCRI PTION
In the method according to the invention for recovering and using oxygen in combustion utilising oxygen, oxygen is formed in connection with the processing of carbon dioxide recovered from the air, a gas or a fluid, the oxygen is recovered and the oxygen is conveyed to combustion utilising oxygen. The carbon dioxide is recovered from the air, for example, outdoor air, air conveyed into a building and/or air circulated in a building, from a gas, for example, a combustion gas and/or flue gas, or from a fluid, for example water, and pure oxygen is formed in connection with the processing of the recovered carbon dioxide. The pure oxygen is recovered and the oxygen is conveyed to combustion utilising oxygen. By means of the method according to the invention, pure oxygen can be formed simultaneously with the recovery of carbon dioxide. Furthermore, by means of the method according to the invention, emissions can be reduced and cleaner combustion achieved at the combustion stage taking place by utilising oxygen.
The invention is, in addition, based on an apparatus comprising at least one carbon dioxide processing device for processing recovered carbon dioxide to form a chemical compound, at least one oxygen-forming device for forming oxygen in connection with the processing of the recovered carbon dioxide, and at least one combustion device into which the oxygen is conveyed and in which the fuel is combusted in the presence of oxygen.
In this connection, combustion by utilising oxygen refers to any combustion taking place in the presence of oxygen.
In one embodiment, the method comprises an oxygen-forming stage. In one embodiment, oxygen is formed of water. In one embodiment, oxygen is formed of water recovered in connection with the processing of carbon dioxide.
In one embodiment, oxygen is formed by means of electrolysis. In the electrolysis, oxygen and hydrogen are preferably formed of water. The hydrogen formed in the electrolysis is preferably conveyed to the carbon dioxide processing stage in which a chemical compound is formed of carbon dioxide by means of hydrogen. The water required for the electrolysis may be derived from the water recovered from the processing of carbon dioxide, such as from the water recovered at the carbon dioxide processing stage and/or from the water separated in connection with the recovery of the carbon dioxide. Alternatively, the water required for the electrolysis may be derived partly or completely, or alternatively intermittently, from any suitable raw material source, for example, the water supply system, rainwater system or exhaust air system or other suitable source.
In one embodiment, the apparatus comprises at least one electrolyser serving as an oxygen-forming device. Oxygen and hydrogen are preferably formed of water in the electrolyser. In this connection can be used any suitable electrolysis method and device known in the art for producing oxygen and hydrogen. In one embodiment, the apparatus comprises at last one means for conveying the water recovered at the carbon dioxide processing stage and/or from the air, for example, from air conveyed into a building and air circulated in a building, or from gas, such as a combustion gas, or from water removed from a fluid, into the electrolyser .
Carbon dioxide is preferably recovered from the air, a gas or a fluid and supplied to the carbon dioxide processing stage. In one embodiment, carbon dioxide is processed by hydrogen processing, for example by means of hydrogen, at the processing stage, in order to form a chemical compound. In one embodiment, a chemical compound, such as an organic and/or inorganic compound, is formed of carbon dioxide at the carbon dioxide processing stage. In one embodiment, a hydrocarbon is formed at the carbon dioxide processing stage. In one embodiment, methane (CH4) is formed at the carbon dioxide processing stage. In one embodiment, at the carbon dioxide processing stage is formed another suitable hydrocarbon or, for example, an alcohol-based compound or other oxygen-containing compound. In one embodiment, carbon dioxide processing is carried out by means of chemical synthesis either in the presence of a catalyst or without a catalyst. At the carbon dioxide processing stage can be used any device known in the art as such and suitable for the purpose, in which device can preferably be arranged conditions suitable for the process or synthesis, such as pressure and temperature.
In one embodiment, the hydrogen formed in electrolysis is conveyed to the carbon dioxide processing stage. In one embodiment, the apparatus comprises means for conveying hydrogen from the electrolyser to the carbon dioxide processing device.
In one embodiment, the chemical compound produced at the carbon dioxide processing stage, for example a hydrocarbon, is recovered and/or processed further. In one embodiment, at the carbon dioxide processing stage is formed hydrocarbon, for example methane (CfU) , which can be used as raw material or fuel, for example, in an internal combustion engine.
In one embodiment, the recovered carbon dioxide, for example, carbon dioxide recovered from the combustion gases of combustion utilising oxygen, can be stored and utilised later, for example, at the carbon dioxide processing stage and/or in producing a hydrocarbon .
In one embodiment, recovered water is conveyed from the carbon dioxide processing stage to electrolysis, where oxygen and hydrogen are formed of the water. In one embodiment, the apparatus comprises at least one water supply device for supplying or circulating water from the carbon dioxide processing device to the oxygen-forming device, for example, an electrolyser .
In one embodiment, the heat generated at the carbon dioxide processing stage is conveyed as process heat to the desired process stages.
Separating carbon dioxide from the air, a gas or a fluid can be carried out by means of any separation device known as such in the art and suitable for the purpose. The separation device may be any separation or recovery device known as such in which the separation of carbon dioxide from the air, a gas or a fluid may be based on a chemical process, a physical process, an absorption process, a dissolving process, a membrane process, other suitable process or their combinations. In one embodiment, the separation of carbon dioxide from the air or a gas can be carried out by means of a scrubber. In one embodiment, the separation of carbon dioxide from the air, a gas or a fluid can be carried out by means of a solid chemically active substance. As a supply device for supplying air, gas or fluid to the separation device can be used any device or equipment suitable for the purpose and known in the art by means of which air, gas or fluid can be conveyed or drawn into the separation device or through it. As means for recovering carbon dioxide from the separation device and conveying it to the carbon dioxide processing stage can be used any means known as such and suitable for the purpose, for example, a discharge pipe, a discharge fitting, a recovery device, a supply device or similar means or their combinations. In one embodiment, the apparatus comprises a separation device for separating carbon dioxide from the air, a gas or a fluid, at least one carbon dioxide processing device, and at least one means for recovering carbon dioxide from the separation device and conveying it to the processing device.
In one embodiment, carbon dioxide is recovered from the air, a gas or a fluid and the carbon dioxide is conveyed to the carbon dioxide processing stage. In one embodiment, carbon dioxide is recovered from the air, such as the air conveyed into a building and/or circulated in a building, and the carbon dioxide is conveyed to the carbon dioxide processing stage. In one embodiment, carbon dioxide is recovered from a gas, such as a combustion gas or a flue gas, for example, the combustion gas from an internal combustion engine, fuel cell or turbine, and the carbon dioxide is conveyed to the carbon dioxide processing stage. In one embodiment, the carbon dioxide is recovered from a fluid, which may be a mixture of a liquid and a gas or a pure liquid, for example, seawater, and the carbon dioxide is conveyed to the carbon dioxide processing stage .
In one embodiment, water is removed from the air, a gas or a fluid in connection with the recovery of carbon dioxide and the water is conveyed to electrolysis, where oxygen and hydrogen are formed of the water. In one embodiment, water is removed from a gas, for example, a combustion gas or a flue gas, in connection with the recovery of carbon dioxide, and the water is conveyed to electrolysis. In one embodiment, water is removed from the air, such as the air conveyed into a building and/or the air circulated in a building, in connection with the recovery of carbon dioxide and the water is conveyed to electrolysis, where oxygen and hydrogen are formed of the water. The humidity of indoor air in the building can thus be reduced. In one embodiment, the apparatus comprises at least one other water supply device for conveying water removed from the air, a gas or a fluid to an oxygen-forming device, for example, an electrolyser .
The oxygen formed is preferably conveyed to combustion utilising oxygen. In one embodiment, the apparatus comprises an oxygen supply device for conveying the oxygen from the oxygen-forming device to the combustion device. In one embodiment, the oxygen formed is stored intermediately and used after intermediate storage in combustion utilising oxygen. In one embodiment, the oxygen formed is conveyed to combustion taking place in an internal combustion engine, fuel cell or turbine by utilising oxygen, where energy, such as kinetic energy and thermal energy are produced of the fuel. In this connection, the internal combustion engine may be any internal combustion engine. In one embodiment, the internal combustion engine is a diesel engine or a fuel oil engine. In one embodiment, the internal combustion engine is a piston engine. In one embodiment, the internal combustion engine is a gas engine. In one embodiment, the turbine is a gas turbine. In combustion utilising oxygen in an internal combustion engine, a fuel cell or a turbine, fuel can used to produce thermal energy, for example, for providing real estate heating or district heating. Any fuel together with the pure oxygen formed can be used as fuel in an internal combustion engine, fuel cell or turbine. The fuel may be derived from any raw material, for example, fossil raw material. In one embodiment, the fuel is diesel or fuel oil or fuel made of them. Alternatively, a chemical compound produced at the processing stage of carbon dioxide, such as hydrocarbon, can be used as fuel.
In one embodiment, the apparatus comprises at least one generator which converts the mechanical kinetic energy of an internal combustion engine, fuel cell or turbine into an electric current.
In one embodiment, the exhaust gases of an internal combustion engine, fuel cell or turbine are conveyed to a refrigerating machine, for example, an absorption chiller. In one embodiment, the refrigerating machine is selected so that its operation is based on absorption cooling, where thermal energy having a temperature higher than the ambient temperature is used for the cooling.
In one embodiment, carbon dioxide is recovered from the combustion gases of an internal combustion engine, a fuel cell or a turbine. The recovered carbon dioxide can be stored or conveyed to the carbon dioxide processing stage according to the invention. In one embodiment, the combustion gases of an internal combustion engine, for example, a diesel or piston engine, are left under pressure, that is, the pressure of the combustion gases is left higher, whereupon the liquefaction point of carbon dioxide is closer to zero, thus providing significant energy savings in liquefaction .
In an alternative embodiment, the oxygen formed can be conveyed to different stages of the process, such as the carbon dioxide processing stage, should there be need for it. In one embodiment, the oxygen formed is stored intermediately, for example in bottles, and used for the desired purpose, for example, for combustion utilising oxygen, as industrial oxygen or as a bottled oxygen product.
In one embodiment, the heat generated in forming oxygen and hydrogen, for example in electrolysis or synthesis, is conveyed to the carbon dioxide separation stage, for heating a building, for example, to the service water of a building, or to a suitable process stage.
Any available energy can be used as the energy required for electrolysis. In one embodiment, the energy generated by a wind turbine or a solar cell device is used as the electricity required for electrolysis. In one embodiment, so-called surplus electricity, which is electricity generated in excess with respect to the electricity consumption, is used as the electricity required for electrolysis. In one embodiment, electrolysis is used flexibly to regulate the frequency of the electrical grid. Electrolysis can, therefore, act as a buffer in electricity generation, where the electrolysis stage is implemented when surplus electricity is available.
In one embodiment, the apparatus comprises a shell construction, for example, walls, a floor and a ceiling inside which the equipment parts of the apparatus can be arranged. In one embodiment, the apparatus can be arranged in a transport container or similar easily movable and/or transportable space. In one embodiment, the apparatus functions as its own unit which can be easily moved and/or located to the desired site of use.
The method and apparatus according to the invention can be used in recovering carbon dioxide, in processing the indoor air of a building, in producing hydrocarbons, in recovering oxygen, in combustion utilising oxygen, in recovering carbon dioxide formed during combustion, in producing energy, in generating heat, in a property-specific energy production system, for example, a heat supply system, a building complex specific energy production system and their combinations .
In this connection, a building complex refers to any property or building, such as a residential building, an industrial building, a warehouse, office premises, a public building or other similar building, or a consortium consisting of more than one building.
In the method and apparatus according to the invention, the different material flows can be recycled and made into new raw materials or products. Owing to the invention, pure oxygen can be formed simultaneously with the recovery and/or processing of carbon dioxide. According to the invention, oxygen can be formed ecologically of various material flows, such as recyclable and/or recovered material flows. Furthermore, for example from the air can be recovered pure carbon dioxide and from it can be formed pure hydrocarbons. Pure oxygen can also be formed of the water separated in the recovery or processing of carbon dioxide recovered from air. High-quality hydrocarbons can be used, for example, for purposes requiring pure fuels.
Furthermore, owing to the invention, a pure and emission-free combustion process can be achieved in combustion utilising oxygen, for example, in an internal combustion engine, fuel cell or turbine. By using the oxygen formed instead of air in the combustion, emissions can be significantly reduced with each fuel. In combustion utilising oxygen according to the invention, significantly less or no nitrogen oxides are formed. Furthermore, in the embodiment according to the invention, exhaust gases are not discharged into the environment, but their thermal energy and the carbon dioxide in the exhaust gases can be utilised.
Owing to the invention, total emissions of carbon dioxide can be reduced. Furthermore, in the process according to the invention, carbon dioxide emissions can be significantly reduced or practically no carbon dioxide emissions are produced.
The apparatus according to the invention can be implemented easily and cost-effectively. The apparatus can also be easily incorporated in connection with buildings and building complexes.
LIST OF FIGURES
Figure 1 shows an apparatus according to the invention, and
Figure 2 shows another apparatus according to the invention.
EXAMPLES
The invention is described in the following with detailed examples of embodiments, with reference to the accompanying Figures.
Example 1
In the apparatus of Fig. 1, oxygen (6) is formed in connection with the processing of recovered carbon dioxide (1), the oxygen (6) is recovered and conveyed to combustion utilising oxygen. In this embodiment, carbon dioxide (1) is recovered from air to be conveyed into a building and/or from air to be circulated in the building, and the recovered carbon dioxide (1) is processed with hydrogen (7) in a processing device (2) at the processing stage to form hydrocarbons (4) . Alternatively, or in addition, carbon dioxide can be recovered from gases, for example, from combustion gases. The water (3) separated at the processing stage is conveyed by means of a water supply device to an oxygen-forming device, such as an electrolyser (5) . The pure oxygen (6) formed is conveyed to a combustion device (8), such as an internal combustion engine, or alternatively, for example, to a fuel cell or a turbine. The hydrogen formed in the electrolyser in addition to oxygen can be recycled as hydrogen (7) into the processing device (2) . The electricity required for electrolysis may be, for example, surplus electricity from electricity production, for example, from a wind turbine or a solar cell device.
The apparatus comprises an oxygen supply device for conveying oxygen (6) from the oxygen forming device to the combustion device (8) . The apparatus further comprises a fuel (9) supply device for supplying fuel to the combustion device (8) . In this embodiment, the combustion device (8) may be an internal combustion engine, such as a diesel internal combustion engine or a gas internal combustion engine, where the fuel (9), for example, diesel or methane gas is combusted in the presence of oxygen (6) . The fuel may be derived from any raw material, for example, a fossil raw material, or alternatively, a chemical compound formed at the carbon dioxide processing stage, such as hydrocarbon (4), can be used as fuel. The energy (11) generated, such as mechanical kinetic energy or thermal energy, is recovered. Thermal energy can be utilised, for example, in property-specific heating or district heating. The exhaust gases (10) produced in combustion can be conveyed by means of a suitable compressor or feeding device to a refrigerating machine (12), such as an absorption chiller, either directly or through heat recovery. If the exhaust gases are conveyed to the refrigerating machine through heat recovery, the recovered heat can be utilised in the refrigerating machine or at another desired process stage. From the refrigerating machine (12) the gas (13) can be recycled by means of a gas recycling device back to the fuel supply of the internal combustion engine. Carbon dioxide from the refrigerating machine can be recovered and utilised as a product or as raw material. Alternatively, carbon dioxide can be recovered from the exhaust gases and conveyed to the carbon dioxide processing stage.
By means of the apparatus of Fig. 1 can be formed pure oxygen, which can be used in combustion utilising oxygen to achieve combustion with less emissions. The exhaust gases from combustion can be used as raw material or, for example, in refrigerating machines .
Example 2
In the apparatus of Fig. 2, oxygen (6) is formed in connection with the processing of the recovered carbon dioxide (1), the oxygen (6) is recovered and conveyed to combustion utilising oxygen. In this embodiment, carbon dioxide (1) is recovered from air conveyed into a building and/or air circulated in the building, and the recovered carbon dioxide (1) is processed with hydrogen (7) in a processing device (2) at the processing stage to form a chemical compound (15) which may be a hydrocarbon. Alternatively, or in addition, carbon dioxide can be recovered from gases, for example, from combustion gases .
Water (3, 3b) separated from the air conveyed into a building and/or circulated in a building is conveyed by means of a second water supply device to an oxygen-forming device, such as an electrolyser (5) . The apparatus may comprise means for removing water from the air conveyed into the building in connection with separating carbon dioxide. It may also be possible to convey water (3, 3a) separated at the processing stage to the oxygen-forming device by means of a water supply device. The pure oxygen (6) formed is conveyed to a combustion device (8), such as an internal combustion engine, or alternatively to a fuel cell or turbine. The hydrogen formed in the electrolyser in addition to oxygen is recycled as hydrogen (7) into the processing device (2) . The electricity required for electrolysis may be, for example, surplus electricity from electricity production, for example, from a wind turbine or a solar cell device.
The apparatus comprises an oxygen supply device for conveying oxygen (6) from the oxygen forming device to the combustion device (8) . The apparatus also comprises a fuel (9) supply device for supplying fuel to the combustion device (8) . In this embodiment, the combustion device (8) may be an internal combustion engine, such as a diesel internal combustion engine or a gas internal combustion engine, where the fuel (9), for example, diesel or methane gas, is combusted in the presence of oxygen (6) . The fuel may be derived from any raw material, for example, a fossil raw material, or alternatively, a chemical compound formed at the carbon dioxide processing stage, such as hydrocarbon, can be used as fuel. The energy (11) generated, such as mechanical kinetic energy or thermal energy, is recovered. Thermal energy can be utilised, for example, in property-specific heating or district heating. The exhaust gases (10) produced in combustion can be conveyed by means of a suitable compressor or feeding device to a refrigerating machine (12), such as an absorption chiller, either directly or through heat recovery. If the exhaust gases are conveyed to the refrigerating machine through heat recovery, the recovered heat can be utilised in the refrigerating machine or at another desired process stage. From the refrigerating machine (12), the gas (13) can be recycled by means of a gas recycling device back to the fuel supply of the internal combustion engine. Carbon dioxide from the refrigerating machine can be recovered and utilised as a product or as raw material. Alternatively, carbon dioxide can be recovered from the exhaust gases and conveyed to the carbon dioxide processing stage.
With the apparatus of Fig. 2 can be formed pure oxygen, which can be used in combustion utilising oxygen to achieve combustion with less emissions. The exhaust gases from the combustion can be utilised as raw material or, for example, in refrigerating machines .
The method and apparatus according to the invention are applicable, as different embodiments, for use in a wide range of applications in connection with combustion utilising oxygen and in connection with the processing of carbon dioxide. Furthermore, the method and apparatus according to the invention are applicable, as different embodiments, for use in connection with a wide variety of processes utilising oxygen .
The invention is not only limited to the above examples, but various modifications are possible within the scope of the inventive idea specified in the claims.

Claims

1. A method for recovering and using oxygen in combustion utilising oxygen, c h a r a c t e r i s e d in that oxygen (6) is formed in connection with the processing of recovered carbon dioxide (1), the oxygen is formed of water by means of electrolysis, the oxygen formed in the electrolysis is recovered and the oxygen (6) is conveyed to combustion (8) utilising oxygen in an internal combustion engine, fuel cell or turbine, where energy (11) is generated of the fuel (9) by utilising oxygen.
2. A method according to claim 1, c h a r a c t e r i s e d in that oxygen (6) is formed of water (3, 3a, 3b) recovered in connection with the processing of carbon dioxide (1) .
3. A method according to claim 1 or 2, c h a r a c t e r i s e d in that the water (3, 3a) recovered at the carbon dioxide processing stage (2) is conveyed to electrolysis (5), where oxygen (6) and hydrogen (7) are formed of the water.
4. A method according to any of the claims 1-
3, c h a r a c t e r i s e d in that carbon dioxide (1) is recovered from the air, a gas or a fluid and the carbon dioxide is conveyed to the carbon dioxide processing stage (2 ) .
5. A method according to any of the claims 1-
4, c h a r a c t e r i s e d in that water (3b) is removed from the air, a gas or a fluid in connection with the recovery of carbon dioxide and the water is conveyed to electrolysis (5) .
6. A method according to any of the claims 1-
5, ch a r a c t e r i s e d in that, at the carbon dioxide processing stage (2), carbon dioxide (1) is processed with hydrogen (7) to form a chemical compound (4, 15) .
7. A method according to any of the claims 1-
6, ch a r a c t e r i s e d in that hydrogen (7) is conveyed from the electrolysis (5) to the carbon dioxide processing stage (2).
8. A method according to any of the claims 1-
7, ch a r a c t e r i s e d in that hydrocarbon (4) is formed at the carbon dioxide processing stage (2) .
9. A method according to any of the claims 1-
8, ch a r a c t e r i s e d in that the exhaust gases (10) of an internal combustion engine, fuel cell or turbine are conveyed to a refrigerating machine (12) .
10. An apparatus for recovering and using oxygen in combustion utilising oxygen, ch a r a c t e r i s e d in that the apparatus comprises at least one carbon dioxide processing device (2), wherein recovered carbon dioxide (1) is processed to form a chemical compound (4, 15), at least one electrolyser (5) for forming oxygen (6) of water by means of electrolysis in connection with the processing of the recovered carbon dioxide (1), and at least one combustion device (8), to which the oxygen (6) formed in the electrolysis is conveyed and in which the fuel (9) is combusted in the presence of oxygen, and the combustion device is selected from an internal combustion engine, a fuel cell or a turbine, wherein energy (11) is produced from the fuel (9) by utilising oxygen .
11. An apparatus according to claim 10, c h a r a c t e r i s e d in that the apparatus comprises at least one water supply device for supplying water (3, 3a) from the carbon dioxide processing device (2) to the electrolyser (5) .
12. An apparatus according to claim 10 or 11, c h a r a c t e r i s e d in that the apparatus comprises an oxygen supply device for conveying oxygen (6) from the electrolyser (5) to the combustion device (8) .
13. The use of the method according to any of the claims 1-9, ch a r a c t e r i s e d in that the method is used in recovering carbon dioxide, in processing the indoor air of a building, in producing hydrocarbons, in recovering oxygen, in combustion utilising oxygen, in recovering carbon dioxide formed during combustion, in producing energy, in generating heat, in a property-specific energy production system, in a building complex specific energy production system, and their combinations.
EP19871379.4A 2018-10-12 2019-10-11 Method and apparatus for oxygen recovery and use in oxygen-aided combustion, and use of the method Withdrawn EP3864194A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20185852A FI20185852A1 (en) 2018-10-12 2018-10-12 Method and apparatus for recovery and use of oxygen in combustion by using oxygen, and use of the method
PCT/FI2019/050727 WO2020074784A1 (en) 2018-10-12 2019-10-11 Method and apparatus for oxygen recovery and use in oxygen-aided combustion, and use of the method

Publications (2)

Publication Number Publication Date
EP3864194A1 true EP3864194A1 (en) 2021-08-18
EP3864194A4 EP3864194A4 (en) 2022-08-24

Family

ID=70163955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19871379.4A Withdrawn EP3864194A4 (en) 2018-10-12 2019-10-11 Method and apparatus for oxygen recovery and use in oxygen-aided combustion, and use of the method

Country Status (3)

Country Link
EP (1) EP3864194A4 (en)
FI (1) FI20185852A1 (en)
WO (1) WO2020074784A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004030717A1 (en) * 2004-06-25 2006-01-19 Mayer, Günter, Dipl.-Ing. Process to convert and store geothermal energy and/or regenerative energy e.g. hydroelectricity by conversion into chemical energy
DE102009007567A1 (en) * 2008-03-10 2009-09-17 Harzfeld, Edgar, Prof. Dr.-Ing. Producing methanol by recycling carbon dioxide from e.g. exhaust gas fossil-fired power plants and power plants, comprises mixing the carbon dioxide from the exhaust gas of fossil-fired power plants with hydrogen using a catalyst
EP2360230A1 (en) * 2010-02-16 2011-08-24 Siemens Aktiengesellschaft Method and device for exploiting the emissions of a power plant
EP2751307B1 (en) * 2011-08-29 2015-09-09 Karl-Hermann Busse Power supply system, in particular for the field of building technology
FR3009308B1 (en) * 2013-08-01 2015-09-11 Commissariat Energie Atomique PROCESS FOR THE THERMOCHEMICAL CONVERSION OF A CARBONIC CHARGE IN SYNTHESIS GAS CONTAINING MAJORITARILY H2 AND CO.
FI130719B1 (en) * 2016-02-18 2024-02-08 Soletair Power Oy Method and installation for separating and utilising carbon dioxide

Also Published As

Publication number Publication date
WO2020074784A1 (en) 2020-04-16
FI20185852A1 (en) 2020-04-13
EP3864194A4 (en) 2022-08-24

Similar Documents

Publication Publication Date Title
EP2817438B1 (en) Methods and systems for energy conversion and generation involving electrolysis of water and hydrogenation of carbon dioxide to methane
CN106285802B (en) A kind of electricity-generating method and TRT
CN105518112A (en) Methanation method and power plant comprising CO2 methanation of power plant flue gas
JP6867310B2 (en) A method of converting CO2 into fuel on a vehicle and a device for that purpose
WO2011022653A3 (en) Recuperative combustion system
WO2009104820A1 (en) Solar thermal energy storage method
CN103080501A (en) An energy generation system and method thereof
CN112601881B (en) Hydrogen energy storage
SA517381649B1 (en) Power Plant
WO2017060704A1 (en) Sustainable energy system
CN109337715B (en) Biomass gasification power generation system and method
Matveev et al. New combined-cycle gas turbine system for plasma-assisted disposal of sewage sludge
US20190153823A1 (en) Process and equipment of fossil fuel power generation with zero carbon emission
CN108700315A (en) For detaching carbon dioxide and utilizing the method and apparatus of carbon dioxide
EP3864194A1 (en) Method and apparatus for oxygen recovery and use in oxygen-aided combustion, and use of the method
JP2005337060A (en) Geothermal power generation-hydrogen manufacturing system
NO20150411A1 (en) Method and plant for oxygen generation
JP2017132668A (en) Hydrogen station system
US10072841B2 (en) Emission-free devices and method for performing mechanical work and for generating electrical and thermal energy
CN211570112U (en) Carbon dioxide mixed residual gas separation system for low-pressure hydrogen production system
Zulqarnain et al. Recent development of integrating CO2 hydrogenation into methanol with ocean thermal energy conversion (OTEC) as potential source of green energy
EP2096257A1 (en) Method for increasing the oil recovery of a productive formation
WO2021186136A1 (en) A design for an efficient symbiotic electricity generation plant
CN206221012U (en) A kind of TRT
WO2020043760A1 (en) Method for storing energy in an energy storage system

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210507

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20220722

RIC1 Information provided on ipc code assigned before grant

Ipc: C10G 2/00 20060101ALI20220718BHEP

Ipc: C25B 15/08 20060101ALI20220718BHEP

Ipc: C25B 1/04 20210101AFI20220718BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20230221