CA2018266A1 - Method to produce energy and carbon dioxide - Google Patents
Method to produce energy and carbon dioxideInfo
- Publication number
- CA2018266A1 CA2018266A1 CA 2018266 CA2018266A CA2018266A1 CA 2018266 A1 CA2018266 A1 CA 2018266A1 CA 2018266 CA2018266 CA 2018266 CA 2018266 A CA2018266 A CA 2018266A CA 2018266 A1 CA2018266 A1 CA 2018266A1
- Authority
- CA
- Canada
- Prior art keywords
- stream
- energy
- combustion gas
- turbine
- combustion
- 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.)
- Abandoned
Links
Abstract
A B S T R A C T
METHOD TO PRODUCE ENERGY AND CARBON DIOXIDE
A method to produce energy and carbon dioxide, comprising introducing a stream of essentially oxygen and a stream of hydrocarbon fuel into a combustion chamber, combusting the hydrocarbon fuel with the oxygen in the combustion chamber thereby producing an amount of energy and a stream of combustion gas comprising carbon dioxide, and using at least a first part of said amount of energy to drive a turbine thereby generating mechanical energy. At least a first part of the stream of combustion gas is cooled and recycled into the combustion chamber so as attenuate the combustion temperature in said chamber.
CS7.T6023PD
METHOD TO PRODUCE ENERGY AND CARBON DIOXIDE
A method to produce energy and carbon dioxide, comprising introducing a stream of essentially oxygen and a stream of hydrocarbon fuel into a combustion chamber, combusting the hydrocarbon fuel with the oxygen in the combustion chamber thereby producing an amount of energy and a stream of combustion gas comprising carbon dioxide, and using at least a first part of said amount of energy to drive a turbine thereby generating mechanical energy. At least a first part of the stream of combustion gas is cooled and recycled into the combustion chamber so as attenuate the combustion temperature in said chamber.
CS7.T6023PD
Description
~ 3 C~U
~ETHOD TO PRODUCE ENERGY AND CARBON DIOXIDE
The invention relates to a method to produce energy and carbon dioxide from the combustion of hydrocarbon fuel. In conventional methods for generating energy and carbon dioxide from the combustion of hydrocarbon fuel, recovery of the carbon dioxide from the combustion flue gas often involves costly and complex solvent processes.
It is an object of the invention to overcome these and other drawbacks of conventional methods for generating energy and carbon dioxlde.
In accordance with the invention this object is achieved by a method to produce energy and carbon dioxide, comprising introducing a stream of essentially oxygen and a stream of hydrocarbon fuel into a combustion chamber, combusting the hydrocarbon fuel with the oxygen in the combustion chamber thereby producing an amount of energy and a stream of combustion gas comprising carbon dioxide, using at least a first part of said amount of energy to drive a turbine thereby generating mechanical energy, cooling at least a first part of the stream of combustion gas and recycling said cooled first part of the stream of combustion gas into the combustion chamber so as attenuate the combustion temperature in said chamber. In this manner it is achieved that the stream of combustion gas is essentially free of nitrogen and nitrogen compounds and oxides.
Advantageously a second part of the stream of combustion gas ~
is introduced into a subsurface earth formation so as to enhance recovery of oil from said formation. If the stream of hydrocarbon fuel contains sulphur, it is not required to remove any sulphur oxides from said second part of the stream of combustion gas sincs these oxides are disposed in the subsurface earth formation.
Consequently it is not required to operate at high combustion temperatures to remove any sulphur oxides which would otherwise have formed and which would have to be removed for example by a reaction with a sodium compound, and no additional steps to protect heat exchanger surfaces from such high temperatures are requi~ed.
The invention will now be explained in more detail with reference to the accompanying drawings, in which:
Fig. 1 shows schematically a first embodiment of a system for use in the method according to the invention; and Fig. 2 shows schematically a second embodiment of a system for use in the method according to the invention.
Referring to Fig. 1 there is shown an oxygen plant 1 which produces a stream of essentially oxygen 3 from a stream of air 5 which is introduced into the plant 1. A stream of gaseous hydrocarbon fuel 7 which is essentially sulphur-free and the stream of oxygen 3 are introduced into a combustion chamber 9 of a steam boiler 11 provided with heat exchanging means (not shown). The hydrocarbon fuel is combusted with the oxygen in the combustion chamber 9 thereby producing an amount of energy and a stream of combustion gas 13 comprising carbon dioxide. Since the stream 3 contains essentially oxygen, the stream of combustion gas 13 is essentially free of nitrogen oxides.
The combustion gas is cooled as it flows along the heat exchanging means of the steam boiler 11. A first part 15 of the stream of cooled combustion gas 13 is recycled to the combustion chamber 9 of the steam boiler 11 by introducing said first part 15 into the stream of oxygan 3.
A first part of the amount of energy produced during the combustion process is carried in a stream of steam 15 produced in the steam boiler. The stream of steam 15 drives a steam-turbine 17 thereby providing mechanical energy to a process 19. A stream of low-pressure steam 21 leaves the steam turbine 17 and flows to a suitable process 23. Thereafter the low-pressure steam is condensed in a cooling tower 25, and a stream of water 27 flows back to the steam boiler 11.
~ETHOD TO PRODUCE ENERGY AND CARBON DIOXIDE
The invention relates to a method to produce energy and carbon dioxide from the combustion of hydrocarbon fuel. In conventional methods for generating energy and carbon dioxide from the combustion of hydrocarbon fuel, recovery of the carbon dioxide from the combustion flue gas often involves costly and complex solvent processes.
It is an object of the invention to overcome these and other drawbacks of conventional methods for generating energy and carbon dioxlde.
In accordance with the invention this object is achieved by a method to produce energy and carbon dioxide, comprising introducing a stream of essentially oxygen and a stream of hydrocarbon fuel into a combustion chamber, combusting the hydrocarbon fuel with the oxygen in the combustion chamber thereby producing an amount of energy and a stream of combustion gas comprising carbon dioxide, using at least a first part of said amount of energy to drive a turbine thereby generating mechanical energy, cooling at least a first part of the stream of combustion gas and recycling said cooled first part of the stream of combustion gas into the combustion chamber so as attenuate the combustion temperature in said chamber. In this manner it is achieved that the stream of combustion gas is essentially free of nitrogen and nitrogen compounds and oxides.
Advantageously a second part of the stream of combustion gas ~
is introduced into a subsurface earth formation so as to enhance recovery of oil from said formation. If the stream of hydrocarbon fuel contains sulphur, it is not required to remove any sulphur oxides from said second part of the stream of combustion gas sincs these oxides are disposed in the subsurface earth formation.
Consequently it is not required to operate at high combustion temperatures to remove any sulphur oxides which would otherwise have formed and which would have to be removed for example by a reaction with a sodium compound, and no additional steps to protect heat exchanger surfaces from such high temperatures are requi~ed.
The invention will now be explained in more detail with reference to the accompanying drawings, in which:
Fig. 1 shows schematically a first embodiment of a system for use in the method according to the invention; and Fig. 2 shows schematically a second embodiment of a system for use in the method according to the invention.
Referring to Fig. 1 there is shown an oxygen plant 1 which produces a stream of essentially oxygen 3 from a stream of air 5 which is introduced into the plant 1. A stream of gaseous hydrocarbon fuel 7 which is essentially sulphur-free and the stream of oxygen 3 are introduced into a combustion chamber 9 of a steam boiler 11 provided with heat exchanging means (not shown). The hydrocarbon fuel is combusted with the oxygen in the combustion chamber 9 thereby producing an amount of energy and a stream of combustion gas 13 comprising carbon dioxide. Since the stream 3 contains essentially oxygen, the stream of combustion gas 13 is essentially free of nitrogen oxides.
The combustion gas is cooled as it flows along the heat exchanging means of the steam boiler 11. A first part 15 of the stream of cooled combustion gas 13 is recycled to the combustion chamber 9 of the steam boiler 11 by introducing said first part 15 into the stream of oxygan 3.
A first part of the amount of energy produced during the combustion process is carried in a stream of steam 15 produced in the steam boiler. The stream of steam 15 drives a steam-turbine 17 thereby providing mechanical energy to a process 19. A stream of low-pressure steam 21 leaves the steam turbine 17 and flows to a suitable process 23. Thereafter the low-pressure steam is condensed in a cooling tower 25, and a stream of water 27 flows back to the steam boiler 11.
A second part 29 of the stream of combustion gas 13 is dehydrated using a dehydrator 31 to produce essentially dry carbon dioxide. Thereafter the dried carbon dioxide is compressed using a compressor 33 and transported via a pipeline system 35 to a location (not shown) where the carbon dioxide is pumped into a subsurface earth formation so as to enhance recovery of oil from the earth formation.
Referring now to Fig. 2 there is shown an oxygen plant 40 which produces a stream of essentially oxygen 42 from a stream of air 44 which is introduced into the plant 40. A stream of gaseous hydrocarbon fuel 46 which is essen~ially sulphur-free and the stream of oxygen 42 are introduced into a combustion chamber 48 of a gas turbine 50. The hydrocarbon fuel is combusted with the oxygen in the combustion chamber 48 thereby producing an amount of energy and a stream of combustion gas 52 comprising carbon dioxide.
Similar to the first embodiment shown in Fig. 1, the stream of combustion gas 52 is essentially free of nitrogen oxides.
A first part of the amount of energy produced during the combustion process is carried in the combustion gas and is used to drive a gas-turbine 50. A second part of the amount of energy is recovered from the stream of combustion gas 52 after discharge from the gas-turbine 50 by producing a stream of steam 54 using a waste heat boiler 56, which streaM of steam 54 is then used in a suitable process 58. The steam is then condensed in a cooling tower 60 and a stream of water 62 is transported back to the waste heat boiler 56.
The co~bustion gas is cooled as it flows along the waste heat boiler 56. In order to attenuate the combustion temperature in the combustio chamber 48, a first part 64 of the stream of cooled combustion gas 52 is recycled to the combustion chamber 48 of the gas turbine 50 by introducing said first part 64 into the stream of oxygen 42.
A second part 66 of the stream of combustion gas 52 is dehydrated using a dehydrator 68 to produce essentially dry carbon dioxide. Thereafter the dried carbon dioxide is compressed using a compressor 70 and transported via a pipeline system 72 to a 2~
- 6, -location (not shown) where the carbon dioxide is pumped into a subsurface earth formation so as to enhance recovery of oil from the earth formation.
The foregoing description of the invention is merely intended to be explanatory thereof. Various changes in the details of the described method may be made within the scope of the appended claims.
Referring now to Fig. 2 there is shown an oxygen plant 40 which produces a stream of essentially oxygen 42 from a stream of air 44 which is introduced into the plant 40. A stream of gaseous hydrocarbon fuel 46 which is essen~ially sulphur-free and the stream of oxygen 42 are introduced into a combustion chamber 48 of a gas turbine 50. The hydrocarbon fuel is combusted with the oxygen in the combustion chamber 48 thereby producing an amount of energy and a stream of combustion gas 52 comprising carbon dioxide.
Similar to the first embodiment shown in Fig. 1, the stream of combustion gas 52 is essentially free of nitrogen oxides.
A first part of the amount of energy produced during the combustion process is carried in the combustion gas and is used to drive a gas-turbine 50. A second part of the amount of energy is recovered from the stream of combustion gas 52 after discharge from the gas-turbine 50 by producing a stream of steam 54 using a waste heat boiler 56, which streaM of steam 54 is then used in a suitable process 58. The steam is then condensed in a cooling tower 60 and a stream of water 62 is transported back to the waste heat boiler 56.
The co~bustion gas is cooled as it flows along the waste heat boiler 56. In order to attenuate the combustion temperature in the combustio chamber 48, a first part 64 of the stream of cooled combustion gas 52 is recycled to the combustion chamber 48 of the gas turbine 50 by introducing said first part 64 into the stream of oxygen 42.
A second part 66 of the stream of combustion gas 52 is dehydrated using a dehydrator 68 to produce essentially dry carbon dioxide. Thereafter the dried carbon dioxide is compressed using a compressor 70 and transported via a pipeline system 72 to a 2~
- 6, -location (not shown) where the carbon dioxide is pumped into a subsurface earth formation so as to enhance recovery of oil from the earth formation.
The foregoing description of the invention is merely intended to be explanatory thereof. Various changes in the details of the described method may be made within the scope of the appended claims.
Claims (10)
1. A method to produce energy and carbon dioxide, comprising:
- introducing a stream of essentially oxygen and a stream of hydrocarbon fuel into a combustion chamber;
- combusting the hydrocarbon fuel with the oxygen in the combustion chamber thereby producing an amount of energy and a stream of combustion gas comprising carbon dioxide;
- using at least a first part of said amount of energy to drive a turbine thereby generating mechanical energy; and - cooling at least a first part of the stream of combustion gas and recycling said cooled first part of the stream of combustion gas into the combustion chamber so as attenuate the combustion temperature in said chamber.
- introducing a stream of essentially oxygen and a stream of hydrocarbon fuel into a combustion chamber;
- combusting the hydrocarbon fuel with the oxygen in the combustion chamber thereby producing an amount of energy and a stream of combustion gas comprising carbon dioxide;
- using at least a first part of said amount of energy to drive a turbine thereby generating mechanical energy; and - cooling at least a first part of the stream of combustion gas and recycling said cooled first part of the stream of combustion gas into the combustion chamber so as attenuate the combustion temperature in said chamber.
2. The method of claim 1, wherein a second part of the stream of the combustion gas is introduced into a subsurface earth formation so as to enhance recovery of oil from said formation.
3. The method of claim 2, wherein the second part of the stream of the combustion gas is dehydrated prior to introduction into said earth formation.
4. The method of claim 3, wherein the second part of the stream of the combustion gas is compressed after dehydration and prior to introduction into said earth formation.
5. The method of any one of claims 1-4, wherein oxygen of the stream of oxygen is produced from air which is introduced into means for producing oxygen from air.
6. The method of any one of claims 1-5, wherein said turbine is in the form of a steam-turbine and said first part of the amount of energy is carried in a stream of steam produced in a steam boiler, said stream of steam being used to drive the steam-turbine.
7. The method of any one of claims 1-5, wherein said turbine is in the form of a gas-turbine and said first part of the amount of energy is carried in the stream of combustion gas, said stream of combustion gas being used to drive the gas-turbine.
8. The method of claim 7, wherein a second part of said amount of energy is recovered from the stream of combustion gas after discharge from the gas-turbine using energy recovery means .
9. The method of claim 8, wherein said second part of the amount of energy is used to produce a stream of steam using a steam boiler.
10. The method substantially as described hereinbefore with reference to the drawings.
CS7.T6023PD
CS7.T6023PD
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2018266 CA2018266A1 (en) | 1990-06-05 | 1990-06-05 | Method to produce energy and carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2018266 CA2018266A1 (en) | 1990-06-05 | 1990-06-05 | Method to produce energy and carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2018266A1 true CA2018266A1 (en) | 1991-12-05 |
Family
ID=4145141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2018266 Abandoned CA2018266A1 (en) | 1990-06-05 | 1990-06-05 | Method to produce energy and carbon dioxide |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2018266A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747042A (en) * | 1996-09-26 | 1998-05-05 | Choquet; Claude | Method for producing carbon dioxide, fungicidal compounds and thermal energy |
| WO1999064719A2 (en) * | 1998-05-29 | 1999-12-16 | Naturkraft As | Process of preparing a gas composition and use thereof |
| US7299868B2 (en) | 2001-03-15 | 2007-11-27 | Alexei Zapadinski | Method and system for recovery of hydrocarbons from a hydrocarbon-bearing information |
| CN106401543A (en) * | 2016-11-07 | 2017-02-15 | 克拉玛依市鑫众石油工程技术服务有限公司 | Raw oil extracting device and oil extraction method |
-
1990
- 1990-06-05 CA CA 2018266 patent/CA2018266A1/en not_active Abandoned
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5747042A (en) * | 1996-09-26 | 1998-05-05 | Choquet; Claude | Method for producing carbon dioxide, fungicidal compounds and thermal energy |
| WO1999064719A2 (en) * | 1998-05-29 | 1999-12-16 | Naturkraft As | Process of preparing a gas composition and use thereof |
| WO1999064719A3 (en) * | 1998-05-29 | 2001-06-07 | Naturkraft As | Process of preparing a gas composition and use thereof |
| US6595291B1 (en) | 1998-05-29 | 2003-07-22 | Naturkraft As | Process of preparing a gas composition and use thereof |
| US7299868B2 (en) | 2001-03-15 | 2007-11-27 | Alexei Zapadinski | Method and system for recovery of hydrocarbons from a hydrocarbon-bearing information |
| CN106401543A (en) * | 2016-11-07 | 2017-02-15 | 克拉玛依市鑫众石油工程技术服务有限公司 | Raw oil extracting device and oil extraction method |
| CN106401543B (en) * | 2016-11-07 | 2020-02-07 | 克拉玛依市鑫众石油工程技术服务有限公司 | Crude oil production device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |