US20230184168A1 - Floating Offshore Carbon Neutral Electric Power Generating System Using Oceanic Carbon Cycle - Google Patents
Floating Offshore Carbon Neutral Electric Power Generating System Using Oceanic Carbon Cycle Download PDFInfo
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- US20230184168A1 US20230184168A1 US17/887,671 US202217887671A US2023184168A1 US 20230184168 A1 US20230184168 A1 US 20230184168A1 US 202217887671 A US202217887671 A US 202217887671A US 2023184168 A1 US2023184168 A1 US 2023184168A1
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Classifications
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/20—Mounting or supporting of plant; Accommodating heat expansion or creep
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/005—Waste disposal systems
- E21B41/0057—Disposal of a fluid by injection into a subterranean formation
- E21B41/0064—Carbon dioxide sequestration
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- E—FIXED CONSTRUCTIONS
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- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0085—Adaptations of electric power generating means for use in boreholes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
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- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
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- 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
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
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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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/32—Direct CO2 mitigation
Definitions
- the present invention relates to electric power generation and, in particular, floating offshore electric power generation utilizing artificial carbon dioxide capture and sequestration in the ocean.
- Electric power generation sources are nuclear, fossil fuels (coal, oil, natural gas), hydro, wind, wave, and solar.
- Fossil fuels have a carbon footprint (e.g., CO2), while all the other mentioned sources generally speaking have no such carbon footprint, i.e. they are carbon neutral.
- the present invention relates to the generation of electric power which is carbon neutral.
- the present invention relates to the use of fossil fuels for the generation of electric power which is carbon neutral.
- the present invention relates to the offshore generation of electric power.
- the present invention relates to the generation of electric power utilizing the oceanic carbon cycle (OCC) to mitigate the atmospheric release of carbon dioxide.
- OCC oceanic carbon cycle
- FIG. 1 is a simplified schematic view of one embodiment of the electric power generating system of the present invention.
- FIG. 2 is a view similar to FIG. 1 showing another embodiment of the present invention.
- FIG. 3 is a view similar to FIG. 1 showing another embodiment of the present invention.
- FIG. 4 is a simplified schematic view of a typical gas turbine system that can be employed in the system and method of the present invention.
- the present invention utilizes the part that the OCC plays in the overall carbon cycle. It is generally recognized that the ocean is a carbon sink since it takes up more carbon from the atmosphere than it gives out. Thus, carbon dioxide from the atmosphere dissolves in the waters of the ocean. While some of the carbon dioxide stays as dissolved gas, some is converted into other things. For example, photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface water turn the carbon into organic matter. Further, many organisms use carbon to make calcium carbonate, the building material of shells and skeletons. Other chemical processes also create calcium carbonate in the water. The using up of carbon by biological and chemical processes allows more carbon dioxide to enter the water from the atmosphere. In short, carbon, e.g., from CO 2 , incorporates itself into marine organisms as organic matter or as calcium carbonate.
- FIG. 1 there is shown a floating structure 10 , which can be a barge, platform, or the like, and which can be dynamically or statically positioned at a suitable offshore location.
- the positioning of structure 10 in deep water can be accomplished using well known methods used in deep water positioning and mooring of drilling and production platforms in the oil and gas industry.
- a gas processing/optimization module 12 mounted on structure 10 is a gas processing/optimization module 12 which is connected by a conduit 14 to a pipeline 16 laying on the seabed 18 .
- gas pipeline 16 will be for the transport of light hydrocarbon gases, e.g., natural gas which contains primarily methane.
- gas transferred from pipeline 16 and line 14 can be treated in various ways well known to those skilled in the art to remove unwanted contaminants, water, and other components that would deleteriously effect downstream operations.
- Module 12 can also include separation and enrichment systems to optimize BTU content of the gas from pipeline 16 .
- a power station module shown generally as 20 which can comprise a driver, e.g., a gas turbine, or steam turbine, both of which are well known to those skilled in the art and both of which, in the present invention, would be powered directly or indirectly from the combustion of a fuel, e.g., processed natural gas transferred via line 24 from processing module 12 .
- a driver e.g., a gas turbine, or steam turbine, both of which are well known to those skilled in the art and both of which, in the present invention, would be powered directly or indirectly from the combustion of a fuel, e.g., processed natural gas transferred via line 24 from processing module 12 .
- the combusted gas (flue gas) generated in the driver or power section 22 of module 20 is sent to a gas collection system comprised of a compression station 26 to compress the flue gas and transfer it to a conduit or line 28 to a subsea location at a desired optimal depth which can be in the sunlit waters of the ocean, but is preferably, for reasons discussed above, in a deeper ocean pool at about 3 km or greater below the ocean surface.
- the flue gas prior to compression in compression station 26 , the flue gas is sent to a carbon dioxide separation station 25 wherein the carbon dioxide is separated from the flue gas by absorption, adsorption, membrane gas separation, or other methods well known to those skilled in the art.
- the carbon dioxide only is then sent to compression station 26 and ultimately transferred to a subsea location by conduit 28 .
- the non-carbon dioxide components of the flue gas are then processed and disposed with by means well known to those skilled in the art.
- the turbine comprising driver 22 is mechanically connected in a well-known fashion to an electric power generator 24 whereby electric power is generated and transferred via line 28 to an electric power substation 30 .
- Substation 30 will generally have switching, protection, and control equipment, and transformers, the output from substation 30 being transmitted via electric power transmission line 32 to a remote location, preferably on land where it can be distributed as needed.
- FIG. 2 there is shown another embodiment of the present invention.
- the embodiment shown in FIG. 2 is substantially the same as that shown in FIG. 1 with the exception that gas from pipeline 16 is transferred via line 14 to a gas storage tank 15 positioned on structure 10 .
- the gas in storage tank 15 is transferred via line 13 to gas processing module 12 .
- the embodiment of FIG. 2 is the same and functions in the same manner as the embodiment of FIG. 1 .
- FIG. 3 there is shown another embodiment of the present invention which is similar to the embodiments shown in FIGS. 1 and 2 , with the exception it employs liquified natural gas (LNG) as a fuel source.
- LNG liquified natural gas
- a barge or ship 42 which has a compartment or vessel 44 carrying LNG, the LNG being transferred form compartment 44 via line 48 to storage vessels 46 on structure 10 .
- LNG is transferred via line 47 to a regasification module 50 and thereafter regasified liquid natural gas (RLNG) via line 52 to gas processing module 12 .
- RLNG regasified liquid natural gas
- FIG. 3 is the same and functions in the same manner as the embodiment of FIGS. 1 and 2 .
- FIG. 4 there is shown a schematic layout of a typical gas turbine system that can be used in the power generating system and method of the present invention.
- the gas turbine system of FIG. 4 comprises a compressor 60 , coupled by shaft 62 to a turbine 64 .
- air is introduced into compressor 60 via line 66 , the air being compressed and then transferred via line 68 to a combustion chamber 70 where it is admixed with a suitable fuel, e.g., natural gas, LNG, the fuel igniting in combustion chamber 70 to generate a high temperature, high pressure gas flow which is introduced via line 74 into turbine 64 to drive turbine 64 wherein it expands down to an exhaust pressure producing a shaft work output via shaft 76 which can then drive an electric power generator, e.g., generator 24 .
- the carbon dioxide combustion gas from turbine 64 is then captured for transfer via line 28 for sequestration at a suitable depth below the surface of the ocean as described above with respect to the embodiments of FIGS. 1 - 3 .
- either natural gas or LNG has been used as a fuel source.
- the fuel source could comprise oil, heating oil and other hydrocarbon liquids.
- the fuel source could comprise coal which could be transferred by barge from the shore to the offshore structure, the coal forming fuel for a boiler generating steam to drive a steam turbine. While admittedly the use of coal poses greater combustion gas capture problems, there are known technologies for capturing combustion gases from the burning of coal or similar solid fossil fuels, which can trap noxious gases other than CO 2 and transfer the remaining CO 2 into the ocean as discussed above with respect to the embodiments shown in FIGS. 1 - 3 . Such a system might be useful where conditions make it difficult to supply the system with natural gas, LNG, or other similar fluid fossil fuels, and wherein the adjacent land is rich in coal deposits. Further, waste paper products could also be used as a fuel source.
- the carbon dioxide collection system may include systems for adding chemical additives, if required, prior to subsea transfer to mitigate potential for localized ocean acidification, due to point source oceanic sequestration of carbon dioxide.
- the structure can be a floating structure similar to deepwater oil and gas offshore platforms, or a fixed structure similar to current, relatively shallow water oil and gas platforms, thereby forming a semi-permanent structure.
- the use of some type of floating structure is preferable since it allows the system to be transferred at will from one location to another to optimize cost considerations.
- feed stock and electric power or export connections will be of a type that could be quickly disconnected to allow the structure to be moved in the event of weather related events such as hurricanes.
- the power plant depending upon what type of turbine(s) are employed can also comprise boilers, steam generators, pumps, and typical equipment used in onshore electric power generating stations and systems as well known to those skilled in the art.
- system could also include a separate vessel or structure having electric power storage capabilities.
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Abstract
An oceanic offshore system and method for generating electric power which comprises a structure positioned at an offshore location. A power generating module is mounted on the structure, the power generating module including a turbine, an electric power generator coupled to the turbine, and a generating source of power fluid for the turbine resulting from the combustion of a fossil fuel. There is a capture system connected to the generating source for transferring carbon dioxide combustion gases to a subsea location for sequestration of CO2.
Description
- This application is a continuation of U.S. application Ser. No. 16/635,088, filed Jan. 29, 2020, which is a U.S. national phase of PCT/US2018/045713, filed Aug. 8, 2018, which claims priority to U.S. Application No. 62/544,517 filed on Aug. 11, 2017 the disclosures of which are all incorporated herein by reference for all purposes.
- The present invention relates to electric power generation and, in particular, floating offshore electric power generation utilizing artificial carbon dioxide capture and sequestration in the ocean.
- To date, electric power generation sources are nuclear, fossil fuels (coal, oil, natural gas), hydro, wind, wave, and solar. Fossil fuels have a carbon footprint (e.g., CO2), while all the other mentioned sources generally speaking have no such carbon footprint, i.e. they are carbon neutral.
- With an increasing concern regarding climate change, electric power generating stations employing fossil fuels are being retrofitted or built with technologies to mitigate carbon footprint. However, currently there is no carbon neutral electric power generation facility employing fossil fuels. This has turned attention to the use of nuclear power for base load power generation (BLPG). However, nuclear power generation is considered by many to be a high-risk option as witnessed by disasters such as Chernobyl and Fukushima Daiichi in Japan.
- In one aspect the present invention relates to the generation of electric power which is carbon neutral.
- In another aspect, the present invention relates to the use of fossil fuels for the generation of electric power which is carbon neutral.
- In yet another aspect, the present invention relates to the offshore generation of electric power.
- In still a further aspect, the present invention relates to the generation of electric power utilizing the oceanic carbon cycle (OCC) to mitigate the atmospheric release of carbon dioxide.
- These and further features and advantages of the present invention will become apparent from the following detailed description, wherein reference is made to the figures in the accompanying drawings.
-
FIG. 1 is a simplified schematic view of one embodiment of the electric power generating system of the present invention. -
FIG. 2 is a view similar toFIG. 1 showing another embodiment of the present invention. -
FIG. 3 is a view similar toFIG. 1 showing another embodiment of the present invention. -
FIG. 4 is a simplified schematic view of a typical gas turbine system that can be employed in the system and method of the present invention. - The present invention, in part, utilizes the part that the OCC plays in the overall carbon cycle. It is generally recognized that the ocean is a carbon sink since it takes up more carbon from the atmosphere than it gives out. Thus, carbon dioxide from the atmosphere dissolves in the waters of the ocean. While some of the carbon dioxide stays as dissolved gas, some is converted into other things. For example, photosynthesis by tiny marine plants (phytoplankton) in the sunlit surface water turn the carbon into organic matter. Further, many organisms use carbon to make calcium carbonate, the building material of shells and skeletons. Other chemical processes also create calcium carbonate in the water. The using up of carbon by biological and chemical processes allows more carbon dioxide to enter the water from the atmosphere. In short, carbon, e.g., from CO2, incorporates itself into marine organisms as organic matter or as calcium carbonate.
- There are predictions based on mathematical modelling that disposal of CO2 into the surface ocean (<1 km depth) would permit equilibration with the atmosphere within a few years to decades and would therefore offer little advantage, but that disposal into ocean basins greater than 3 km in depth would delay equilibration with the atmosphere for several hundred years, eliminating the atmospheric concentration transient. Resultant interaction with calcite-rich sediments may reduce the long-term (>2000 year) atmospheric enrichment by a significant amount (˜50%). In any event, many of the interactive processes between marine organisms and CO2 could result in the locking up of carbon for millions of years. Further, CO2 sequestration may be more efficient in colder oceanic waters since it is known that the solubility of carbon dioxide in water increases with decreasing temperature.
- Referring first to
FIG. 1 , there is shown afloating structure 10, which can be a barge, platform, or the like, and which can be dynamically or statically positioned at a suitable offshore location. The positioning ofstructure 10 in deep water can be accomplished using well known methods used in deep water positioning and mooring of drilling and production platforms in the oil and gas industry. Mounted onstructure 10 is a gas processing/optimization module 12 which is connected by aconduit 14 to apipeline 16 laying on theseabed 18. Generally speaking,gas pipeline 16 will be for the transport of light hydrocarbon gases, e.g., natural gas which contains primarily methane. Ingas processing module 12, gas transferred frompipeline 16 andline 14 can be treated in various ways well known to those skilled in the art to remove unwanted contaminants, water, and other components that would deleteriously effect downstream operations.Module 12 can also include separation and enrichment systems to optimize BTU content of the gas frompipeline 16. - Also mounted on
structure 10 is a power station module shown generally as 20 and which can comprise a driver, e.g., a gas turbine, or steam turbine, both of which are well known to those skilled in the art and both of which, in the present invention, would be powered directly or indirectly from the combustion of a fuel, e.g., processed natural gas transferred vialine 24 fromprocessing module 12. The combusted gas (flue gas) generated in the driver orpower section 22 ofmodule 20 is sent to a gas collection system comprised of acompression station 26 to compress the flue gas and transfer it to a conduit orline 28 to a subsea location at a desired optimal depth which can be in the sunlit waters of the ocean, but is preferably, for reasons discussed above, in a deeper ocean pool at about 3 km or greater below the ocean surface. In a preferred embodiment, prior to compression incompression station 26, the flue gas is sent to a carbondioxide separation station 25 wherein the carbon dioxide is separated from the flue gas by absorption, adsorption, membrane gas separation, or other methods well known to those skilled in the art. The carbon dioxide only is then sent tocompression station 26 and ultimately transferred to a subsea location byconduit 28. The non-carbon dioxide components of the flue gas are then processed and disposed with by means well known to those skilled in the art. - The
turbine comprising driver 22 is mechanically connected in a well-known fashion to anelectric power generator 24 whereby electric power is generated and transferred vialine 28 to anelectric power substation 30.Substation 30 will generally have switching, protection, and control equipment, and transformers, the output fromsubstation 30 being transmitted via electricpower transmission line 32 to a remote location, preferably on land where it can be distributed as needed. - Turning now to
FIG. 2 , there is shown another embodiment of the present invention. The embodiment shown inFIG. 2 is substantially the same as that shown inFIG. 1 with the exception that gas frompipeline 16 is transferred vialine 14 to agas storage tank 15 positioned onstructure 10. The gas instorage tank 15 is transferred vialine 13 togas processing module 12. In all other respects, the embodiment ofFIG. 2 is the same and functions in the same manner as the embodiment ofFIG. 1 . - Turning now to
FIG. 3 , there is shown another embodiment of the present invention which is similar to the embodiments shown inFIGS. 1 and 2 , with the exception it employs liquified natural gas (LNG) as a fuel source. To this end, there is a barge orship 42 which has a compartment orvessel 44 carrying LNG, the LNG being transferredform compartment 44 vialine 48 tostorage vessels 46 onstructure 10. LNG is transferred vialine 47 to aregasification module 50 and thereafter regasified liquid natural gas (RLNG) vialine 52 togas processing module 12. Using fuel injection technology, it may be possible for LNG to be used as a fuel, without regasification. In all other respects the, embodiment ofFIG. 3 is the same and functions in the same manner as the embodiment ofFIGS. 1 and 2 . - Referring now to
FIG. 4 , there is shown a schematic layout of a typical gas turbine system that can be used in the power generating system and method of the present invention. The gas turbine system ofFIG. 4 comprises acompressor 60, coupled byshaft 62 to aturbine 64. In a well-known manner, air is introduced intocompressor 60 vialine 66, the air being compressed and then transferred vialine 68 to acombustion chamber 70 where it is admixed with a suitable fuel, e.g., natural gas, LNG, the fuel igniting incombustion chamber 70 to generate a high temperature, high pressure gas flow which is introduced vialine 74 intoturbine 64 to driveturbine 64 wherein it expands down to an exhaust pressure producing a shaft work output viashaft 76 which can then drive an electric power generator, e.g.,generator 24. The carbon dioxide combustion gas fromturbine 64 is then captured for transfer vialine 28 for sequestration at a suitable depth below the surface of the ocean as described above with respect to the embodiments ofFIGS. 1-3 . - In the case of a steam turbine, the natural gas would be used to convert water to steam, the steam in turn being used to spin the turbine, the output shaft of the turbine being coupled to an electric generator as in the case of the gas turbine. It is further contemplated there could be combination of gas and steam turbines, similar to configurations on land based combined cycle power stations which are well known to those skilled in the art.
- In all of the embodiments discussed above, either natural gas or LNG has been used as a fuel source. However, it is within the scope of the present invention for the fuel source to comprise oil, heating oil and other hydrocarbon liquids. Further, the fuel source could comprise coal which could be transferred by barge from the shore to the offshore structure, the coal forming fuel for a boiler generating steam to drive a steam turbine. While admittedly the use of coal poses greater combustion gas capture problems, there are known technologies for capturing combustion gases from the burning of coal or similar solid fossil fuels, which can trap noxious gases other than CO2 and transfer the remaining CO2 into the ocean as discussed above with respect to the embodiments shown in
FIGS. 1-3 . Such a system might be useful where conditions make it difficult to supply the system with natural gas, LNG, or other similar fluid fossil fuels, and wherein the adjacent land is rich in coal deposits. Further, waste paper products could also be used as a fuel source. - It is further contemplated that the carbon dioxide collection system may include systems for adding chemical additives, if required, prior to subsea transfer to mitigate potential for localized ocean acidification, due to point source oceanic sequestration of carbon dioxide.
- As described above, the structure can be a floating structure similar to deepwater oil and gas offshore platforms, or a fixed structure similar to current, relatively shallow water oil and gas platforms, thereby forming a semi-permanent structure. However, the use of some type of floating structure is preferable since it allows the system to be transferred at will from one location to another to optimize cost considerations.
- It will also be understood that feed stock and electric power or export connections will be of a type that could be quickly disconnected to allow the structure to be moved in the event of weather related events such as hurricanes.
- It will be further understood that the power plant, depending upon what type of turbine(s) are employed can also comprise boilers, steam generators, pumps, and typical equipment used in onshore electric power generating stations and systems as well known to those skilled in the art.
- It is further contemplated that the system could also include a separate vessel or structure having electric power storage capabilities.
- Although specific embodiments of the invention have been described herein in some detail, this has been done solely for the purposes of explaining the various aspects of the invention, and is not intended to limit the scope of the invention as defined in the claims which follow. Those skilled in the art will understand that the embodiment shown and described is exemplary, and various other substitutions, alterations and modifications, including but not limited to those design alternatives specifically discussed herein, may be made in the practice of the invention without departing from its scope.
Claims (12)
1. A system for generating electric power comprising:
an oceanic offshore structure;
an electric power generating system mounted on said structure, said power generating system including:
an electric power generator;
a driver powered by combustion process of a fossil fuel, said driver being connected to said generator; and
a capture system connected to said combustion process for transferring carbon dioxide combustion gases from said combustion process to a subsea location.
2. The system of claim 1 , wherein said driver comprises a turbine.
3. The system of claim 2 , wherein said driver comprises a gas turbine.
4. The system of claim 1 , wherein said capture system includes a conduit having a first end operatively connected to said driver to receive said carbon dioxide combustion gases therefrom, and a second end positioned at a subsea location.
5. The system of claim 4 , wherein said capture system further includes a compression system for compressing said carbon dioxide combustion gas introduced into said conduit.
6. The system of claim 1 , further comprising an electric power substation mounted on said offshore structure for receiving electric power output from said generator.
7. The system of claim 6 , further comprising:
an electric power transmission system operatively connected to said substation and a remote location to transmit electric power to said remote location.
8. A method of generating electric power comprising:
positioning a structure at an oceanic offshore location;
mounting an electric power generating system on said structure, said generating system having an electric power generator and a driver drivingly connected to said generator;
combusting a fossil fuel to power said driver with a byproduct of carbon dioxide combustion gas;
capturing said carbon dioxide combustion gases and transferring to a subsea location.
9. The method of claim 8 wherein said driver is one of a gas combustion turbine or steam turbine.
10. The method of claim 8 , further comprising:
compressing said carbon dioxide gas prior to transferring said carbon dioxide gas to said subsea location.
11. The method of claim 8 , further comprising:
transmitting electric power from said electric power generating system to a remote location.
12. The method of claim 11 , wherein said remote location is on land.
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PCT/US2018/045713 WO2019032646A1 (en) | 2017-08-11 | 2018-08-08 | Floating offshore carbon neutral electric power generating system using oceanic carbon cycle |
US202016635088A | 2020-01-29 | 2020-01-29 | |
US17/887,671 US20230184168A1 (en) | 2017-08-11 | 2022-08-15 | Floating Offshore Carbon Neutral Electric Power Generating System Using Oceanic Carbon Cycle |
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DK202000104A1 (en) * | 2020-01-28 | 2021-10-07 | Maersk Drilling As | An offshore jack-up installation, assembly and method |
CN114100182A (en) * | 2021-11-15 | 2022-03-01 | 中海石油(中国)有限公司 | Seabed direct sealing device and method for carbon dioxide discharged by deepwater drilling platform |
WO2023191634A1 (en) * | 2022-03-30 | 2023-10-05 | Stena Power & Lng Solutions As | Offshore carbon capture and injection method and system |
US11873991B2 (en) * | 2022-03-30 | 2024-01-16 | Stena Power & Lng Solutions As | Offshore carbon capture and injection method and system |
ES2943182B2 (en) * | 2022-09-29 | 2023-09-25 | Corral Manuel Herias | SYSTEM INCORPORATED IN DIESEL ELECTRIC TYPE GAS VESSELS (DFDE/TFDE) FOR THE TRANSFORMATION OF EVAPORATED NATURAL GAS (BOG) INSIDE THE TANKS INTO ELECTRICAL ENERGY AND ITS DISTRIBUCTION TO LAND |
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US1870263A (en) * | 1930-03-18 | 1932-08-09 | Abner R Neff | Submarine |
JPS583878B2 (en) * | 1977-12-26 | 1983-01-24 | 三井造船株式会社 | offshore power plant |
EP0408979B1 (en) * | 1989-07-19 | 1998-01-21 | Mitsubishi Jukogyo Kabushiki Kaisha | Method and system for throwing carbon dioxide into the deep sea |
JPH05238721A (en) * | 1992-02-29 | 1993-09-17 | Furukawa Electric Co Ltd:The | Method for sending carbon dioxide into abyss |
US5964985A (en) * | 1994-02-02 | 1999-10-12 | Wootten; William A. | Method and apparatus for converting coal to liquid hydrocarbons |
JP3402884B2 (en) * | 1995-11-22 | 2003-05-06 | 三菱重工業株式会社 | Liquefied carbon dioxide deep-sea injection device |
US6406219B1 (en) * | 2000-08-31 | 2002-06-18 | Jolyon E. Nove | Greenhouse gas emission disposal from thermal power stations |
US7654073B2 (en) * | 2003-12-11 | 2010-02-02 | Primlani Indru J | Power generating systems and methods |
US7119460B2 (en) * | 2004-03-04 | 2006-10-10 | Single Buoy Moorings, Inc. | Floating power generation system |
KR100766185B1 (en) | 2005-05-18 | 2007-10-10 | 박재욱 | Floating combined cycle power plant |
US20060283590A1 (en) * | 2005-06-20 | 2006-12-21 | Leendert Poldervaart | Enhanced floating power generation system |
WO2008115558A1 (en) * | 2007-03-20 | 2008-09-25 | Zeuner Kenneth W | System and method for harvesting electrical power from marine current using turbines |
US8803346B2 (en) * | 2009-03-09 | 2014-08-12 | Natural Power Concepts, Inc. | System and method for generating electricity using grid of wind and water energy capture devices |
JP2013180617A (en) * | 2012-02-29 | 2013-09-12 | Mitsubishi Heavy Ind Ltd | Ship equipped with power plant |
JP2014122563A (en) * | 2012-12-20 | 2014-07-03 | Toshiba Corp | Floating body type power plant |
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