CN108306027A - A kind of oxygen-enriched combusting and solid oxide fuel cell hybrid power system - Google Patents
A kind of oxygen-enriched combusting and solid oxide fuel cell hybrid power system Download PDFInfo
- Publication number
- CN108306027A CN108306027A CN201710019837.4A CN201710019837A CN108306027A CN 108306027 A CN108306027 A CN 108306027A CN 201710019837 A CN201710019837 A CN 201710019837A CN 108306027 A CN108306027 A CN 108306027A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- solid oxide
- oxide fuel
- oxygen
- enriched combusting
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 73
- 239000007787 solid Substances 0.000 title claims abstract description 49
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000001301 oxygen Substances 0.000 title claims abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 29
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000003546 flue gas Substances 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 238000003487 electrochemical reaction Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 230000003134 recirculating effect Effects 0.000 claims 1
- 238000002407 reforming Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- -1 oxonium ion Chemical class 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
- H01M8/04022—Heating by combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
- H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/40—Combination of fuel cells with other energy production systems
- H01M2250/402—Combination of fuel cell with other electric generators
-
- 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
Abstract
The present invention relates to a kind of oxygen-enriched combustings and solid oxide fuel cell hybrid power system, belong to electricity generation system field.The system includes the components such as solid oxide fuel cell, reformer, combustion chamber, generator.The isolated O of air2And N2, with CH4Based on fuel reforming obtain H2And CO；H2With O2It reacts in solid oxide fuel cell, forms solid oxide fuel cell power generating system；Meanwhile in combustion chamber oxygen-enriched combusting occurs for the gas based on fuel, the high-temperature flue gas of generation enters turbine expansion acting, forms oxygen-enriched combusting electricity generation system.This hybrid power system can not only ensure the power demand of system, also made full use of to the energy, improve generating efficiency.
Description
Technical field
The invention belongs to electricity generation system fields more particularly to a kind of oxygen-enriched combusting, and hair is mixed with solid oxide fuel cell
Electric system.
Background technology
Solid oxide fuel cell is a kind of energy conversion device, i.e., by the energy being stored in fuel and oxidant with
Electrochemical means are converted into electric energy.Different from conventional batteries, the fuel and oxidant of solid oxide fuel cell are not
It is stored in inside battery, and is previously stored in the storage tank of outside batteries, as long as incessantly into solid oxide fuel cell
Fuel and oxidant are inputted, while reaction product is discharged, it can continuously generate electricity.Compared to conventional power generation device, solid oxidation
Object fuel cell is high with operating temperature, energy conversion efficiency is high, does not discharge or seldom discharges pollutants, work noise is low, can
The advantages that wide using fuel range.
But conventional solid oxide fuel cell is all that will be passed directly into battery to participate in electrochemistry after air preheat
Reaction, this often leads to the waste of decrease of power generation and raw material.Accordingly it is contemplated that first being detached to air, in this way
Both the O of high-purity can have been obtained2, solid oxide fuel cell reaction rate and efficiency are improved, and N can be obtained2Product.
In addition, most common thermoelectric conversion device is to drive turbine by natural gas, but turbine is limited by Carnot cycle at present
It is influenced with combustible loss, system generating efficiency is still to be improved.Accordingly it is contemplated that by common thermoelectric conversion device and solid oxygen
Compound fuel cell is combined, and has not only made full use of the raw material and product of solid oxide fuel cell power generation process, but also realize
Burn indoor oxygen-enriched combusting, and then improves the generating efficiency and fuel availability of whole system.
Invention content
In view of the above problems and phenomenon, a kind of oxygen-enriched combusting of present invention offer and solid oxide fuel cell are mixed
Close electricity generation system, it is intended to generating efficiency be improved by hybrid system, realize abundant, the reasonable utilization of the energy.
To achieve the goals above, the technical solution that the present invention takes is：
A kind of oxygen-enriched combusting and solid oxide fuel cell hybrid power system, including：
Compressor：It is configured to compress air；
Air separator：It is configured to detach air；
Fuel preheater：It is configured to heat gaseous fuel；
Gas preheater：It is configured to O2It is heated；
Reformer：It is configured to reform the gaseous fuel after preheating, generates anode of solid oxide fuel cell
Required hydrogen；
Solid oxide fuel cell：It is configured to generation electrochemical reaction and produces electricl energy；
Combustion chamber：It is configured to that oxygen-enriched combusting occurs, and generates high-temperature gas；
Turbine：It is configured to the thermal energy of high-temperature gas being converted to mechanical energy；
Generator：It is configured to mechanical energy being changed into electric energy.
A kind of above-mentioned oxygen-enriched combusting and solid oxide fuel cell hybrid power system, wherein the air point
Product from device is O2And N2Product.
A kind of above-mentioned oxygen-enriched combusting and solid oxide fuel cell hybrid power system, wherein the fuel is pre-
Hot device heat source is the high-temperature flue gas of turbine.
A kind of above-mentioned oxygen-enriched combusting and solid oxide fuel cell hybrid power system, wherein the gas is pre-
The heat source of hot device is the high-temperature flue gas of turbine.
A kind of above-mentioned oxygen-enriched combusting and solid oxide fuel cell hybrid power system, wherein the reformer
Product be CO and H2。
A kind of above-mentioned oxygen-enriched combusting and solid oxide fuel cell hybrid power system, wherein the solid oxygen
That electrochemical reaction occurs in compound fuel cell is H2And O2。
A kind of above-mentioned oxygen-enriched combusting and solid oxide fuel cell hybrid power system, wherein the turbine production
A raw high-temperature flue gas part enters combustion chamber, and another part is introduced into reformer, enters back into fuel preheater and gas preheating
Device.
Above-mentioned technical proposal has the following advantages that or advantageous effect：
1, there is no combustion process in solid oxide fuel cell, electricity is generated simply by chemical breakdown gas fuel
Power, the amount of nitrogen oxides in reaction product is not as good as directly using the 2% of natural gas power plant, carbon dioxide is more the reduction of
15%, therefore pollution, environmental protection can be greatly reduced.
2, the high-temperature gas that combustion chamber oxygen-enriched combusting generates is passed through turbine, generating efficiency can be improved to 55%, far
Far above the generating efficiency of coal powerplant 35%, and only with the generating efficiency of turbine 50%.
3, the high-temperature flue gas that turbine generates is discharged into air again after cascade utilization, not only energy saving, but also environmental protection.
Description of the drawings
By reading with reference to attached drawing below to being described in detail made by non-limiting embodiment, of the invention and its feature,
Shape and advantage will become more apparent.Identical label indicates identical part in whole attached drawings.Not deliberately according to
Ratio draws attached drawing, it is preferred that emphasis is shows the purport of the present invention.
A kind of oxygen-enriched combustings of Fig. 1 and solid oxide fuel cell hybrid power system structural schematic diagram
Fig. 2 solid oxide fuel cell fundamental diagrams
Each label meaning is as follows in figure：1- compressors；2- air separators；3- fuel preheaters；4- gas preheaters；5-
Reformer；6- solid oxide fuel cell；The combustion chambers 7-；8- turbines；9- generators；
Specific implementation mode
The present invention is further illustrated in the following with reference to the drawings and specific embodiments, but not as the limit of the present invention
It is fixed.
As shown in Figure 1, this system includes：Compressor 1, fuel preheater 3, gas preheater 4, is reformed air separator 2
Device 5, solid oxide fuel cell 6, combustion chamber 7, turbine 8, generator 9.Air is after the compression of compressor 1 into air point
O is obtained from device 22And N2Product, a part of O2Enter solid oxide fuel cell 6 after the heating of gas preheater 4, it is another
Part O2Into combustion chamber 7；With CH4Based on gaseous fuel through fuel preheater 3 heating after, a part obtained by reformer 5
H2Into solid oxide fuel cell 6, with O2Electrochemical reaction occurs and forms solid oxide fuel cell power generating system；Separately
A part of fuel, CO, O2, part H in 6 product of flue gas and solid oxide fuel cell2O carries out rich support in combustion chamber 7
Burning generates high-temperature flue gas and enters 8 expansion work of turbine, and generator 9 is made to generate electricity, and forms oxygen-enriched combusting electricity generation system；Turbine 8
High-temperature flue gas after acting, a part are back to the O that combustion chamber 7 adjusts oxygen-enriched combusting2Content in the reasonable scope, another portion
Divide, first heated reformate device 5, the H needed for stabilization of solid oxide fuel cell 62Yield reheats fuel preheater 3 and gas
Preheater 4 makes solid oxide fuel cell 6 keep rational operating temperature range.
Solid oxide fuel cell fundamental diagram is introduced with reference to Fig. 2.
Solid oxide fuel cell 6 in Fig. 2 includes mainly solid electrolyte E, anode A and cathode C three parts, solid
When oxide fuel cell 6 works, electronics flows to cathode by anode through external circuit, oxygen molecule obtain electronics be reduced into oxygen from
Son, oxonium ion transit to anode under the action of potential difference and difference in oxygen concentration driving force, by the Lacking oxygen orientation in electrolyte
Oxidation reaction occurs, the electronics that anode reaction releases flow back into cathode by external circuit.
It should be appreciated by those skilled in the art that those skilled in the art combine the prior art and above-described embodiment can be real
The existing change case, it will not be described here.Such change case does not affect the essence of the present invention, and it will not be described here.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this field
It applies；Any technical person familiar with the field makes many possible changes and modifications not departing from technical solution of the present invention, or
It is revised as the equivalent embodiment of equivalent variations, this is not affected the essence of the present invention.Therefore, every without departing from skill of the present invention
The content of art scheme, according to the technical essence of the invention any simple modification made to the above embodiment, equivalent variations and repair
Decorations, still fall within technical solution of the present invention protection in the range of.
Claims (3)
1. a kind of oxygen-enriched combusting and solid oxide fuel cell hybrid power system, it is characterised in that：It includes compressor, sky
Gas separating device, fuel preheater, gas preheater, reformer, solid oxide fuel cell, combustion chamber, turbine, generator；
Air obtains O after compressor compresses into air separator2And N2Product, a part of O2By gas preheater plus
Enter solid oxide fuel cell, another part O after heat2Into combustion chamber；With CH4Based on gaseous fuel through fuel preheating
After device heating, a part obtains H by reformer2Into solid oxide fuel cell, with O2It is concurrent that electrochemical reaction occurs
Electricity；Another part is with CH4Based on gaseous fuel, reformate CO, O2, in flue gas and solid oxide fuel cell product
Part H2O carries out oxygen-enriched combusting in the combustion chamber, generates high-temperature flue gas and enters turbine expansion acting, and makes electrical power generators.
2. a kind of oxygen-enriched combusting as described in claim 1 and solid oxide fuel cell hybrid power system, feature exist
In the flue gas is the high-temperature flue gas after turbine acting, and a part of high temperature gases recirculating to combustion chamber adjusts oxygen-enriched combusting
O2Content is within the scope of 27-39%, another part high-temperature flue gas elder generation heated reformate device, stabilization of solid oxide fuel cell institute
The H needed2Yield reheats fuel preheater and gas preheater.
3. a kind of oxygen-enriched combusting as described in claim 1 and solid oxide fuel cell hybrid power system, feature exist
In the operating temperature of the solid oxide fuel cell is in the range of 800-1000 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019837.4A CN108306027A (en) | 2017-01-12 | 2017-01-12 | A kind of oxygen-enriched combusting and solid oxide fuel cell hybrid power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019837.4A CN108306027A (en) | 2017-01-12 | 2017-01-12 | A kind of oxygen-enriched combusting and solid oxide fuel cell hybrid power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108306027A true CN108306027A (en) | 2018-07-20 |
Family
ID=62871967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710019837.4A Pending CN108306027A (en) | 2017-01-12 | 2017-01-12 | A kind of oxygen-enriched combusting and solid oxide fuel cell hybrid power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108306027A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195663A (en) * | 2019-05-31 | 2019-09-03 | 智享蓝天(北京)科技有限公司 | The method and apparatus of oil well exhaust gases recycling power generation |
| CN115763883A (en) * | 2022-11-17 | 2023-03-07 | 华北电力大学 | Zero-carbon-emission solid oxide fuel cell power generation system integrated with oxygen permeable membrane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08185880A (en) * | 1994-12-28 | 1996-07-16 | Kobe Steel Ltd | Fuel cell power generation system |
| JP2000348749A (en) * | 1999-06-01 | 2000-12-15 | Ishikawajima Harima Heavy Ind Co Ltd | Starting method of fuel cell power generation plant |
| US20020174659A1 (en) * | 2001-05-24 | 2002-11-28 | Fermin Viteri | Combined fuel cell and fuel combustion power generation systems |
| CN102820480A (en) * | 2011-06-09 | 2012-12-12 | 通用电气公司 | Fuel cell and gas turbine hybrid generating system and power generation method implemented by same |
| DE102014115096A1 (en) * | 2014-10-16 | 2016-04-21 | Eberspächer Climate Control Systems GmbH & Co. KG | SYSTEM FOR SUPPLYING A VEHICLE WITH ELECTRIC ENERGY |
-
2017
- 2017-01-12 CN CN201710019837.4A patent/CN108306027A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08185880A (en) * | 1994-12-28 | 1996-07-16 | Kobe Steel Ltd | Fuel cell power generation system |
| JP2000348749A (en) * | 1999-06-01 | 2000-12-15 | Ishikawajima Harima Heavy Ind Co Ltd | Starting method of fuel cell power generation plant |
| US20020174659A1 (en) * | 2001-05-24 | 2002-11-28 | Fermin Viteri | Combined fuel cell and fuel combustion power generation systems |
| CN102820480A (en) * | 2011-06-09 | 2012-12-12 | 通用电气公司 | Fuel cell and gas turbine hybrid generating system and power generation method implemented by same |
| DE102014115096A1 (en) * | 2014-10-16 | 2016-04-21 | Eberspächer Climate Control Systems GmbH & Co. KG | SYSTEM FOR SUPPLYING A VEHICLE WITH ELECTRIC ENERGY |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195663A (en) * | 2019-05-31 | 2019-09-03 | 智享蓝天(北京)科技有限公司 | The method and apparatus of oil well exhaust gases recycling power generation |
| CN115763883A (en) * | 2022-11-17 | 2023-03-07 | 华北电力大学 | Zero-carbon-emission solid oxide fuel cell power generation system integrated with oxygen permeable membrane |
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Application publication date: 20180720 |
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