WO2004066467A2 - Solid oxide fuel cell with anode offgas afterburner charged with oxygen - Google Patents
Solid oxide fuel cell with anode offgas afterburner charged with oxygen Download PDFInfo
- Publication number
- WO2004066467A2 WO2004066467A2 PCT/EP2004/050019 EP2004050019W WO2004066467A2 WO 2004066467 A2 WO2004066467 A2 WO 2004066467A2 EP 2004050019 W EP2004050019 W EP 2004050019W WO 2004066467 A2 WO2004066467 A2 WO 2004066467A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compartment
- oxygen
- anode
- gas
- natural gas
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the invention relates to a device for generating electricity from natural gas, comprising: a first and a second compartment, wherein the first compartment comprises an anode surface and the second compartment comprises a cathode surface electrically connected to the anode surface; a natural gas supply discharging in the first compartment; an oxidant supply discharging in the second compartment; and a third compartment connected to the first compartment for after burning gas from the first compartment.
- Such a device is known from EP-A-1 025 604. Such a device is particularly used near a well which produces hydrocarbon fluids from an underground reservoir.
- the gas which is discharged by the device and comprises substantially carbon dioxide, is compressed and injected into the underground reservoir. This reduces the exhaust of carbon dioxide into the atmosphere.
- This object is achieved by the invention with a device according to the preamble, which is characterized by an oxygen supply discharging in the third compartment.
- This oxygen is used for afterburning the gas, which is discharged by the first compartment and which comprises carbon monoxide, hydrogen and unburned natural gas.
- these components are combusted without addition of nitrogen, such that the resulting gas is easily condensable for injection into a receptacle, such as an underground reservoir.
- the device according to the invention comprises a cryogenic oxygen separation device, which supplies oxygen to the third compartment.
- a cryogenic process involves high costs and reduces the electrical efficiency, only about 15% of the natural gas has to be oxydized using this pure oxygen, which reduces the disadvantages of such a cryogenic process.
- the cryogenic process has the advantage that it could be built on a large scale without substantial difficulties.
- the device comprises a fuel cell.
- This fuel cell comprises the first and second compartment with the anode and cathode surfaces .
- the invention also relates to a method for generating electricity from natural gas using a device according to the invention, which method comprises the steps of: - converting at the anode surface the natural gas to hydrogen and carbon monoxide and allowing the cathode and anode reactions to take place to produce a potential difference between anode surface and cathode surface, wherein an anode off-gas is produced, which comprises water and carbon dioxide; feeding the anode off-gas from the first compartment to the third compartment; supplying oxygen to the third compartment for after burning components of the anode off-gas.
- the method comprises the steps of: - cooling air to a temperature at which oxygen condenses; separating the condensed oxygen; and supplying the condensed oxygen to the third compartment .
- the nitrogen, which condenses at a lower temperature than oxygen, is removed, such that it will not come into the gas discharging from the third compartment .
- the drawing shows a schematic representation of a device according to the invention.
- the device 1 shown in the drawing comprises a first compartment 2 into which fuel cell tubes 3 extend.
- the fuel cell tubes 3 are connected to a second compartment 4 having an inlet 5 and an outlet 6. Air is supplied to the inlet 5 and circulated through the fuel cell tubes 3 to the outlet 6.
- the first compartment 2 has an inlet 7 to which the natural gas comprising methane is supplied.
- the fuel cell tubes 3 convert the methane and the oxygen to carbon dioxide and water while producing electricity.
- a mixture of this carbon dioxide, water and unburned natural gas and intermediate products discharge into a third compartment 8 through openings 9.
- An oxygen supply conduit 10 also discharges into this third compartment 8. The oxygen provides for and after burning effect resulting in an off-gas comprising substantially carbon dioxide and water.
- the water is separated from the carbon dioxide and this carbon dioxide is condensed and preferably inserted into a reservoir.
- the oxygen supplied by the conduit 10 originates preferably from a cryogenic separation device 11, which separates out of a stream of air 12, a stream of oxygen 10 and a stream of nitrogen 13.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to a device for generating electricity from natural gas, comprising: - a first and a second compartment, wherein the first compartment comprises an anode surface and the second compartment comprises a cathode surface electrically connected to the anode surface; - a natural gas supply discharging in the first compartment; - an oxidant supply discharging in the second compartment; and - a third compartment connected to the first compartment for after burning gas from the first compartment by means of oxygen injected by an oxygen supply into the third compartment.
Description
SOLID OXIDE FUEL CELL
The invention relates to a device for generating electricity from natural gas, comprising: a first and a second compartment, wherein the first compartment comprises an anode surface and the second compartment comprises a cathode surface electrically connected to the anode surface; a natural gas supply discharging in the first compartment; an oxidant supply discharging in the second compartment; and a third compartment connected to the first compartment for after burning gas from the first compartment.
Such a device is known from EP-A-1 025 604. Such a device is particularly used near a well which produces hydrocarbon fluids from an underground reservoir. The gas, which is discharged by the device and comprises substantially carbon dioxide, is compressed and injected into the underground reservoir. This reduces the exhaust of carbon dioxide into the atmosphere.
When manufacturing a device according to EP-A-1 025 604 on a large scale it turns out to be an expensive and difficult device.
It is therefore an object of the invention to provide a device, which is cheaper and simpler, especially on a large scale.
This object is achieved by the invention with a device according to the preamble, which is characterized by an oxygen supply discharging in the third compartment.
This oxygen is used for afterburning the gas, which is discharged by the first compartment and which comprises carbon monoxide, hydrogen and unburned natural gas. By adding the oxygen, these components are combusted without addition of nitrogen, such that the resulting gas is easily condensable for injection into a receptacle, such as an underground reservoir.
In a preferred embodiment, the device according to the invention comprises a cryogenic oxygen separation device, which supplies oxygen to the third compartment. Although a cryogenic process involves high costs and reduces the electrical efficiency, only about 15% of the natural gas has to be oxydized using this pure oxygen, which reduces the disadvantages of such a cryogenic process. On the other hand the cryogenic process has the advantage that it could be built on a large scale without substantial difficulties.
In another embodiment of the invention, the device comprises a fuel cell. This fuel cell comprises the first and second compartment with the anode and cathode surfaces .
The invention also relates to a method for generating electricity from natural gas using a device according to the invention, which method comprises the steps of: - converting at the anode surface the natural gas to hydrogen and carbon monoxide and allowing the cathode and anode reactions to take place to produce a potential difference between anode surface and cathode surface, wherein an anode off-gas is produced, which comprises water and carbon dioxide; feeding the anode off-gas from the first compartment to the third compartment;
supplying oxygen to the third compartment for after burning components of the anode off-gas.
In a preferred embodiment of the method according to the invention, it comprises the steps of: - cooling air to a temperature at which oxygen condenses; separating the condensed oxygen; and supplying the condensed oxygen to the third compartment . In this way the nitrogen, which condenses at a lower temperature than oxygen, is removed, such that it will not come into the gas discharging from the third compartment .
These and other features of the invention are elucidated in conjunction with the accompanying drawing.
The drawing shows a schematic representation of a device according to the invention.
The device 1 shown in the drawing comprises a first compartment 2 into which fuel cell tubes 3 extend. The fuel cell tubes 3 are connected to a second compartment 4 having an inlet 5 and an outlet 6. Air is supplied to the inlet 5 and circulated through the fuel cell tubes 3 to the outlet 6. The first compartment 2 has an inlet 7 to which the natural gas comprising methane is supplied. The fuel cell tubes 3 convert the methane and the oxygen to carbon dioxide and water while producing electricity. A mixture of this carbon dioxide, water and unburned natural gas and intermediate products discharge into a third compartment 8 through openings 9. An oxygen supply conduit 10 also discharges into this third compartment 8. The oxygen provides for and after burning effect resulting in an off-gas comprising substantially carbon dioxide and water. The water is separated from the carbon
dioxide and this carbon dioxide is condensed and preferably inserted into a reservoir. The oxygen supplied by the conduit 10 originates preferably from a cryogenic separation device 11, which separates out of a stream of air 12, a stream of oxygen 10 and a stream of nitrogen 13.
Claims
1. Device for generating electricity from natural gas, comprising: a first and a second compartment, wherein the first compartment comprises an anode surface and the second compartment comprises a cathode surface electrically connected to the anode surface; a natural gas supply discharging in the first compartment; an oxidant supply discharging in the second compartment; and a third compartment connected to the first compartment for after burning gas from the first compartment; characterized by an oxygen supply discharging in the third compartment.
2. Device according to claim 1, comprising a cryogenic oxygen separation device, which supplies oxygen to the third compartment.
3. Device according to claim 1 or 2, comprising a fuel cell.
4. Method for generating electricity from natural gas using a device according to claim 1, 2 or 3, which method comprises the steps of: converting at the anode surface the natural gas to hydrogen and carbon monoxide and allowing the cathode and anode reactions to take place to produce a potential difference between anode surface and cathode surface, wherein an anode off-gas is produced, which comprises water and carbon dioxide; feeding the anode off-gas from the first compartment to the third compartment; and supplying oxygen to the third compartment for after burning components of the anode off-gas.
5. Method according to claim 4, further comprising the steps of: cooling air to a temperature at which oxygen condenses; separating the condensed oxygen; and - supplying the condensed oxygen to the third compartment .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03250306.2 | 2003-01-17 | ||
| EP03250306 | 2003-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2004066467A2 true WO2004066467A2 (en) | 2004-08-05 |
| WO2004066467A3 WO2004066467A3 (en) | 2004-09-30 |
Family
ID=32748965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/050019 WO2004066467A2 (en) | 2003-01-17 | 2004-01-16 | Solid oxide fuel cell with anode offgas afterburner charged with oxygen |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2004066467A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2568563A (en) * | 2018-07-17 | 2019-05-22 | Omnagen Ltd | Chemical reactor for controlled temperature gas phase oxidation reactions |
| US12304646B2 (en) | 2024-07-19 | 2025-05-20 | Tennessee Technological University | Fuel cell turboelectric fan for an aircraft |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4250230A (en) * | 1979-12-10 | 1981-02-10 | In Situ Technology, Inc. | Generating electricity from coal in situ |
| DE3932217A1 (en) * | 1989-04-25 | 1990-10-31 | Linde Ag | METHOD FOR OPERATING HIGH-TEMPERATURE FUEL CELLS |
| EP0482222A1 (en) * | 1990-10-20 | 1992-04-29 | Asea Brown Boveri Ag | Method for the separation of nitrogen and carbon dioxide and concentration of the latter in energysupplying oxydation- and combustion processes |
| JP3000118B2 (en) * | 1992-08-04 | 2000-01-17 | 運輸省船舶技術研究所長 | Method of separating and recovering carbon dioxide while generating power using solid oxide fuel cell |
| EP1025604B1 (en) * | 1997-08-26 | 2001-11-07 | Shell Internationale Researchmaatschappij B.V. | Producing electrical energy from natural gas using a solid oxide fuel cell |
-
2004
- 2004-01-16 WO PCT/EP2004/050019 patent/WO2004066467A2/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2568563A (en) * | 2018-07-17 | 2019-05-22 | Omnagen Ltd | Chemical reactor for controlled temperature gas phase oxidation reactions |
| GB2568563B (en) * | 2018-07-17 | 2023-03-08 | Omnagen Ltd | Chemical reactor for controlled temperature gas phase oxidation reactions |
| US11837757B2 (en) | 2018-07-17 | 2023-12-05 | Omnagen Limited | Chemical reactor for controlled temperature gas phase oxidation reactions |
| US12308491B2 (en) | 2024-06-14 | 2025-05-20 | Tennessee Technological University | Integrated solid oxide fuel cell combustor assembly, system, and method thereof |
| US12304646B2 (en) | 2024-07-19 | 2025-05-20 | Tennessee Technological University | Fuel cell turboelectric fan for an aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004066467A3 (en) | 2004-09-30 |
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