CN210122940U - Air flow highly-coupled integrated coal gasification fuel cell power generation system - Google Patents
Air flow highly-coupled integrated coal gasification fuel cell power generation system Download PDFInfo
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- CN210122940U CN210122940U CN201921089924.8U CN201921089924U CN210122940U CN 210122940 U CN210122940 U CN 210122940U CN 201921089924 U CN201921089924 U CN 201921089924U CN 210122940 U CN210122940 U CN 210122940U
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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
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- 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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model provides an air flow highly-coupled integrated coal gasification fuel cell power generation system, which comprises a coal preparation unit, a gasification furnace, a waste heat boiler, a dust removal unit, a desulphurization device, an ejector, a fuel cell, a gas turbine combustion chamber, a gas turbine compressor, a gas turbine, a cathode regenerator, a waste heat boiler and a steam turbine; as the fuel cell cathode tail gas enters the combustion chamber to generate combustion reaction, the oxygen concentration of the combustion reaction and the temperature of the reaction zone are reduced, thereby reducing the original NOx emission concentration of the gas turbine.
Description
Technical Field
The utility model belongs to the technical field of clean coal power generation, concretely relates to air flow highly-coupled integrated coal gasification fuel cell power generation system.
Background
Coal is the most important basic energy in China. The integrated coal gasification fuel cell power generation system IGFC is a power generation system combining a coal gasification power generation technology and a high-temperature fuel cell, the energy conversion efficiency is not limited by Carnot cycle efficiency, the coal power efficiency can be greatly improved, near zero emission of pollutants and carbon dioxide is easy to realize, and the integrated coal gasification fuel cell power generation system IGFC is an important development direction of a clean coal power generation technology.
The IGFC system integrates a plurality of devices such as a gasification furnace, air separation, gas purification, a high-temperature fuel cell, a gas turbine, a waste heat boiler, a steam turbine, and the like. The IGFC system has a long flow, the connection relation between energy and materials among devices is complex, energy and materials are scientifically and reasonably coupled, the net generating efficiency of the IGFC system can be further improved, and the IGFC system is expected to become a coal-based generating system with the highest net efficiency.
Disclosure of Invention
An object of the utility model is to provide an air flow highly coupled's whole coal gasification fuel cell power generation system for provide the net generating efficiency of IGFC system.
In order to achieve the above purpose, the utility model discloses a technical scheme is:
the utility model provides an air flow highly-coupled integrated coal gasification fuel cell power generation system, including the coal preparation unit, the gasifier, the exhaust-heat boiler, the dust removal unit, desulphurization unit, the ejector, fuel cell, the gas turbine combustion chamber, the gas turbine compressor, the gas turbine, the negative pole regenerator, exhaust-heat boiler and steam turbine, wherein, be provided with the raw coal entry on the coal preparation unit, the dry coal powder export of coal preparation unit and the entry of pure nitrogen pipe hybrid connection gasifier, be provided with the pure oxygen entry on the gasifier, its top is provided with the export of high temperature coarse synthesis gas, the entry of this exit linkage exhaust-heat boiler, the saturated steam outlet of exhaust-heat boiler connects exhaust-heat boiler's entry;
the method comprises the following steps that a crude synthesis gas outlet of a waste heat boiler is connected with an inlet of a dust removal unit, an outlet of the dust removal unit is connected with an inlet of a desulphurization device, an outlet of the desulphurization device and a part of medium-pressure steam outlet of a steam turbine are connected to an inlet of an ejector in a mixed mode, part of tail gas at an anode outlet of a fuel cell is ejected, and a synthesis gas outlet of the ejector is connected with an anode inlet of the fuel cell; the outlet of the anode of the fuel cell is connected with the inlet of a combustion chamber of the gas turbine, the outlet of high-temperature and high-pressure gas of the combustion chamber of the gas turbine is connected with the inlet of a turbine of the gas turbine, and the outlet of the turbine of the gas turbine is connected with the inlet of a waste heat boiler;
an air inlet is arranged on the gas turbine compressor, one path of a high-pressure gas outlet of the gas turbine compressor is connected with a cold side inlet of a cathode heat regenerator, a cold side outlet of the cathode heat regenerator is connected with a cathode inlet of a fuel cell, a cathode outlet of the fuel cell is connected with a hot side inlet of the cathode heat regenerator, a hot side outlet of the cathode heat regenerator is connected with a second path of outlet of the gas turbine compressor through a mixing pipe, and the mixing pipe is connected with an inlet of a combustion chamber of the gas turbine;
a high-pressure superheated steam outlet of the waste heat boiler is connected with a steam turbine, and a part of medium-pressure steam outlet of the steam turbine is connected with a medium-pressure steam inlet of the gasification furnace.
Preferably, the desulphurization device comprises a first gas heater, a water washing tower, a second gas heater, a carbonyl sulfide hydrolysis reactor, a low-temperature waste heat recovery unit, a synthesis gas cooler and a desulphurization unit, the outlet of the dust removal unit is connected with the hot side inlet of the first gas heater, the hot side outlet of the first gas heater is connected with the inlet of the water washing tower, the synthetic gas outlet of the water washing tower is connected with the hot side inlet of the second gas heater, the hot side outlet of the second gas heater is connected with the inlet of the carbonyl sulfide hydrolysis reactor, the outlet of the carbonyl sulfide hydrolysis reactor is connected with the cold side inlet of the second gas heater, the cold side outlet of the second gas heater is connected with the inlet of the low-temperature waste heat recovery unit, the outlet of the low-temperature waste heat recovery unit is connected with the inlet of the synthetic gas cooler, the outlet of the synthetic gas cooler is connected with the inlet of the desulfurization unit, and the outlet of the desulfurization unit and part of medium-pressure steam outlets of the steam turbine are connected to the.
Preferably, the outlet of the desulfurization unit is connected with a fine desulfurization unit.
Preferably, the outlet of the fine desulfurization unit is connected with a humidifier.
Preferably, the desulfurization unit is provided with a wastewater outlet and a waste gas outlet, wherein the wastewater outlet is connected with a water treatment unit; the waste gas outlet is connected with a sulfur recovery unit.
Preferably, the outlet of the dust removal unit is also connected with a circulating gas compressor, and the outlet of the circulating gas compressor and the high-temperature crude synthesis gas outlet of the gasification furnace are chilled and then connected to the inlet of the waste heat boiler.
Preferably, the outlet of the gas compressor of the gas turbine is also connected with a waste heat recovery heat exchanger, the outlet of the waste heat recovery heat exchanger is connected with the inlet of the air separation unit, the air separation unit is provided with a pure oxygen outlet and a pure nitrogen outlet, the deoxygenation outlet is connected with an oxygen compressor, and the outlet of the oxygen compressor is connected with the oxygen inlet of the gasification furnace; the pure nitrogen outlet is connected with a nitrogen compressor, and the outlet of the nitrogen compressor and the dry coal powder outlet of the coal preparation unit are connected to the dry coal powder inlet of the gasification furnace in a mixed mode.
Preferably, the air separation unit is further provided with an air inlet, and the air inlet is connected with an air separation main air compressor.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an air flow highly-coupled integrated gasification fuel cell power generation system, cancel fuel cell's in the conventional IGFC system cathode compressor, and then adopt the gas turbine compressor to bleed and regard as fuel cell cathode gas, the compression efficiency of gas turbine compressor is higher than fuel cell cathode compressor, has improved the clean generating efficiency of IGFC; a fuel cell cathode compressor is cancelled, the capacity of a main air compressor of the air separation system is reduced, and the plant power consumption of the IGFC system is greatly reduced; because the gas compressor of the gas turbine is adopted for air extraction, the risk of surge of the gas turbine is reduced; as the fuel cell cathode tail gas enters the combustion chamber to generate combustion reaction, the oxygen concentration of the combustion reaction and the temperature of the reaction zone are reduced, thereby reducing the original NOx emission concentration of the gas turbine.
Furthermore, a main air compressor of the air separation system is partially replaced, air is extracted by the air compressor of the gas turbine to be used as compressed air required by the air separation system, the compression efficiency of the air compressor of the gas turbine is higher than that of the main air compressor of the air separation system, and the IGFC net power generation efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a power generation system according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides an air flow highly-coupled integrated coal gasification fuel cell power generation system, which comprises a coal preparation unit 1, a gasification furnace 2, a waste heat boiler 3, a dust removal unit 4, a recycle gas compressor 5, a first gas heater 6, a water scrubber 7, a second gas heater 8, a carbonyl sulfide hydrolysis reactor 9, a low-temperature waste heat recovery unit 10, a synthetic gas cooler 11, a desulfurization unit 12, a fine desulfurization unit 13, a humidifier 14, a water treatment unit 15, a sulfur recovery unit 16, an ejector 17, a fuel cell 18, a gas turbine combustion chamber 19, a gas turbine compressor 20, a gas turbine 21, a cathode regenerator 22, a waste heat recovery heat exchanger 23, a waste heat boiler 24, a steam turbine 25, a main air compressor 26, an air separation unit 27, a nitrogen compressor 28 and an oxygen compressor 29, wherein the coal preparation unit 1 is provided with a raw coal inlet, a dry coal powder outlet of the coal preparation unit 1 is connected with an inlet of the gasification furnace 2, a slag outlet is arranged at the bottom of the gasification furnace 2, a high-temperature crude synthesis gas outlet at the top of the gasification furnace 2 and a low-temperature synthesis gas outlet of the circulating gas compressor 5 are connected to a mixing pipeline, the mixing pipeline is connected with an inlet of the waste heat boiler 3, and a saturated steam outlet of the waste heat boiler 3 is connected with an inlet of the waste heat boiler 24; a crude synthesis gas outlet of the waste heat boiler 3 is connected with an inlet of a dust removal unit 4, one outlet of the dust removal unit 4 is connected with an inlet of a circulating gas compressor 5, the other outlet of the dust removal unit 4 is connected with a hot side inlet of a first gas heater 6, a hot side outlet of the first gas heater 6 is connected with an inlet of a water washing tower 7, a synthesis gas outlet of the water washing tower 7 is connected with a hot side inlet of a second gas heater 8, a hot side outlet of the second gas heater 8 is connected with an inlet of a carbonyl sulfide hydrolysis reactor 9, an outlet of the carbonyl sulfide hydrolysis reactor 9 is connected with a cold side inlet of the second gas heater 8, a cold side outlet of the second gas heater 8 is connected with an inlet of a low-temperature waste heat recovery unit 10, an outlet of the low-temperature waste heat recovery unit 10 is connected with an inlet of a synthesis gas cooler 11, an outlet of the synthesis gas cooler 11 is connected with an inlet of a desulfurization unit 12; the desulfurization unit 12 is provided with a wastewater outlet and a waste gas outlet, wherein the wastewater outlet is connected with the water treatment unit 15; the waste gas outlet is connected to a sulfur recovery unit 16.
The outlet of the fine desulfurization unit 13 is connected with the inlet of a humidifier 14, the outlet of the humidifier 14 is connected with the cold side inlet of a first gas heater 6, the cold side outlet of the first gas heater 6 and a medium-pressure steam outlet on a steam turbine 25 are connected to a mixing pipeline, the mixing pipeline is connected with the inlet of an ejector 17, part of tail gas at the anode outlet of the fuel cell 18 is ejected, and the synthetic gas outlet of the ejector 17 is connected with the anode inlet of the fuel cell 18; the anode outlet of the fuel cell 18 is connected with the inlet of the gas turbine combustion chamber 19, the high-temperature and high-pressure gas outlet of the gas turbine combustion chamber 19 is connected with the inlet of the gas turbine 21, the outlet of the gas turbine 21 is connected with the inlet of the waste heat boiler 24, and the waste heat boiler 24 is provided with a tail gas outlet.
An air inlet is arranged on the gas turbine compressor 20, a high-pressure gas outlet of the gas turbine compressor 20 is divided into three paths, one path is connected with a cold side inlet of a cathode heat regenerator 22, a cold side outlet of the cathode heat regenerator 22 is connected with a cathode inlet of a fuel cell 18, a cathode outlet of the fuel cell 18 is connected with a hot side inlet of the cathode heat regenerator 22, a hot side outlet of the cathode heat regenerator 22 is connected with a second path outlet of the gas turbine compressor 20 through a mixing pipe, and the mixing pipe is connected with an inlet of a combustion chamber 19 of the gas turbine; a third path of outlet of the gas turbine compressor 20 is connected with an inlet of the waste heat recovery heat exchanger 23, an outlet of the waste heat recovery heat exchanger 23 is connected with an inlet of the air separation unit 27, the air separation unit 27 is provided with a pure oxygen outlet and a pure nitrogen outlet, wherein the oxygen removal outlet is connected with an oxygen compressor 29, and an outlet of the oxygen compressor 29 is connected with an oxygen inlet of the gasification furnace 2; the pure nitrogen outlet is connected with a nitrogen compressor 28, and the outlet of the nitrogen compressor 28 and the dry coal powder outlet of the coal preparation unit 1 are connected to the inlet of the gasification furnace 2 in a mixed manner; the air separation unit 27 is also provided with an air inlet connected with an air separation main air compressor 26.
The high-pressure superheated steam outlet of the waste heat boiler 24 is connected with a steam turbine 25, and part of the medium-pressure steam outlet of the steam turbine 25 is connected with the medium-pressure steam inlet of the gasification furnace 2.
The system flow is as follows:
the raw coal is ground and dried in the coal preparation unit 1 to form dry coal powder, high-pressure pure nitrogen gas generated by a nitrogen compressor 28 is conveyed to the gasification furnace 2, pure oxygen at the outlet of an oxygen compressor 29 and a small amount of medium-pressure steam extracted from the middle part of a steam turbine 25 are simultaneously conveyed to the gasification furnace 2 to react, furnace slag is generated at the bottom of the gasification furnace 2, and high-temperature crude synthesis gas generated at the top is mixed with low-temperature synthesis gas at the outlet of a circulating gas compressor 5 and is chilled and then conveyed to the waste heat boiler 3; saturated steam generated by the waste heat boiler 3 is sent to a waste heat boiler 24 for further heating, the crude synthesis gas after waste heat recovery by the waste heat boiler 3 is sent to a dust removal unit 4, a part of synthesis gas after temperature reduction and dust removal is circulated to an inlet of a circulating gas compressor 5, the other part of synthesis gas enters an inlet of a hot side of a first gas heater 6 and is sent to a water scrubber 7 after temperature reduction, synthesis gas at an outlet of the water scrubber 7 is sent to an inlet of a hot side of a second gas heater 8 and is sent to a carbonyl sulfide hydrolysis reactor 9 after further temperature reduction, then enters an inlet of a cold side of the second gas heater 8, synthesis gas enters a low-temperature waste heat recovery unit 10 after reheating, then enters a synthesis gas cooler 11, the synthesis gas enters a desulfurization unit 12 after being reduced to the temperature required by the desulfurization process, clean synthesis gas generated by the desulfurization unit is sent to a fine desulfurization unit 13, then is sent to a humidifier 14 for humidification, and then enters the, the wastewater and the waste gas generated by the desulfurization unit 12 respectively enter the water treatment unit 15 and the sulfur recovery unit 16 to respectively form solid salt and sulfur; mixing the synthesis gas at the outlet of the cold side of the first gas heater 6 with the medium-pressure steam extracted from the middle part of the steam turbine 25, diluting the carbon monoxide gas in the synthesis gas, sending the diluted synthesis gas into the ejector 17, ejecting part of tail gas at the outlet of the anode of the fuel cell 18, and allowing the synthesis gas at the outlet of the ejector 17 to enter the anode of the fuel cell 18 for reaction; the rest of the tail gas at the anode outlet of the fuel cell 18 enters the combustion chamber 19 of the gas turbine to perform combustion reaction, high-temperature and high-pressure gas is generated, the gas is sent to the waste heat boiler 24 after being acted by the gas turbine 21, and the combustion tail gas is discharged into the atmosphere after being cooled.
The gas turbine compressor 20 pressurizes ambient air and divides the ambient air into three paths, wherein the first path is sent to a cold side inlet of a cathode heat regenerator 22, high-temperature air at a cold side outlet is sent to a cathode inlet of a fuel cell 18, the high-temperature air is sent to a hot side inlet of the cathode heat regenerator 22 after reaction in the fuel cell 18, and the high-temperature air is mixed with the second path of air at the outlet of the gas turbine compressor 20 after cooling and sent to a combustion chamber 19 of the gas turbine for combustion reaction; the third air pass is sent to a waste heat recovery heat exchanger 23 and then to an air separation unit 27. The main air compressor 26 extracts ambient air and mixes with the third air path to be sent to the air separation unit 27.
The air separation unit 27 produces high purity oxygen that is fed to the inlet of an oxygen compressor 29 and high purity nitrogen that is fed to the inlet of a nitrogen compressor 28.
The exhaust-heat boiler 24 produces high-pressure superheated steam which is fed to a steam turbine 25.
The electrical energy generated by the system is generated by a fuel cell 18, a gas turbine 21, and a steam turbine 25.
The utility model discloses owing to take above system configuration scheme, have following advantage:
1. the utility model provides a pair of high coupling's of air flow whole coal gasification fuel cell power generation system has cancelled fuel cell's in the conventional IGFC system cathode compressor, and then adopts the gas turbine compressor to bleed as fuel cell cathode gas, and the compression efficiency of gas turbine compressor is higher than fuel cell cathode compressor, has improved the clean power generation efficiency of IGFC.
2. The utility model provides a pair of high coupling's of air flow whole coal gasification fuel cell power generation system has partly replaced air separation system's main air compressor machine, and then adopts the gas turbine compressor to bleed as the required compressed air of air separation system, and the compression efficiency of gas turbine compressor is higher than air separation system main air compressor machine, has improved the clean power generation efficiency of IGFC.
3. The utility model provides a pair of high coupled whole coal gasification fuel cell power generation system of air flow has cancelled fuel cell cathode compressor, has reduced air separation system main air compressor machine capacity, has reduced IGFC system's station service power consumption by a wide margin.
4. The utility model provides a pair of high coupled whole coal gasification fuel cell power generation system of air flow owing to adopted the gas turbine compressor to bleed, has reduced the risk that gas turbine takes place the surge.
The utility model provides a pair of high coupling's of air flow whole coal gasification fuel cell power generation system because fuel cell cathode tail gas gets into the combustion chamber and takes place combustion reaction, has reduced combustion reaction's oxygen concentration and reaction zone temperature to gas turbine's the original emission concentration of NOx has been reduced.
Claims (8)
1. An air flow highly-coupled integrated coal gasification fuel cell power generation system is characterized by comprising a coal preparation unit (1), a gasification furnace (2), a waste heat boiler (3), a dust removal unit (4), a desulfurization device, an ejector (17), a fuel cell (18), a gas turbine combustion chamber (19), a gas turbine compressor (20), a gas turbine (21), a cathode regenerator (22), a waste heat boiler (24) and a steam turbine (25), wherein, a raw coal inlet is arranged on the coal preparation unit (1), a dry coal powder outlet of the coal preparation unit (1) and a pure nitrogen pipe are mixed and connected to an inlet of the gasification furnace (2), a pure oxygen inlet is arranged on the gasification furnace (2), the top of the waste heat boiler is provided with a high-temperature crude synthesis gas outlet which is connected with the inlet of the waste heat boiler (3), and the saturated steam outlet of the waste heat boiler (3) is connected with the inlet of the waste heat boiler (24);
a raw synthesis gas outlet of the waste heat boiler (3) is connected with an inlet of the dust removal unit (4), an outlet of the dust removal unit (4) is connected with an inlet of a desulfurization device, an outlet of the desulfurization device and a part of medium-pressure steam outlet of the steam turbine (25) are mixed and connected to an inlet of the ejector (17), part of tail gas at an anode outlet of the fuel cell (18) is ejected, and a synthesis gas outlet of the ejector (17) is connected with an anode inlet of the fuel cell (18); the anode outlet of the fuel cell (18) is connected with the inlet of a combustion chamber (19) of the gas turbine, the high-temperature and high-pressure gas outlet of the combustion chamber (19) of the gas turbine is connected with the inlet of a turbine (21) of the gas turbine, and the outlet of the turbine (21) of the gas turbine is connected with the inlet of a waste heat boiler (24);
an air inlet is formed in the gas turbine compressor (20), one path of a high-pressure gas outlet of the gas turbine compressor (20) is connected with a cold side inlet of a cathode heat regenerator (22), a cold side outlet of the cathode heat regenerator (22) is connected with a cathode inlet of a fuel cell (18), a cathode outlet of the fuel cell (18) is connected with a hot side inlet of the cathode heat regenerator (22), a hot side outlet of the cathode heat regenerator (22) is connected with a second path of outlet of the gas turbine compressor (20) through a mixing pipe, and the mixing pipe is connected with an inlet of a combustion chamber (19) of the gas turbine;
a high-pressure superheated steam outlet of the waste heat boiler (24) is connected with a steam turbine (25), and a part of medium-pressure steam outlet of the steam turbine (25) is connected with a medium-pressure steam inlet of the gasification furnace (2).
2. An air flow highly coupled integrated coal gasification fuel cell power generation system according to claim 1, wherein the desulfurization device comprises a first gas heater (6), a water scrubber (7), a second gas heater (8), a carbonyl sulfide hydrolysis reactor (9), a low temperature waste heat recovery unit (10), a syngas cooler (11) and a desulfurization unit (12), wherein the outlet of the dust removal unit (4) is connected with the hot side inlet of the first gas heater (6), the hot side outlet of the first gas heater (6) is connected with the inlet of the water scrubber (7), the syngas outlet of the water scrubber (7) is connected with the hot side inlet of the second gas heater (8), the hot side outlet of the second gas heater (8) is connected with the inlet of the carbonyl sulfide hydrolysis reactor (9), the outlet of the carbonyl sulfide hydrolysis reactor (9) is connected with the cold side inlet of the second gas heater (8), the outlet of the cold side of the second gas heater (8) is connected with the inlet of the low-temperature waste heat recovery unit (10), the outlet of the low-temperature waste heat recovery unit (10) is connected with the inlet of the synthesis gas cooler (11), the outlet of the synthesis gas cooler (11) is connected with the inlet of the desulphurization unit (12), and the outlet of the desulphurization unit (12) and a part of medium-pressure steam outlet of the steam turbine (25) are connected to the inlet of the ejector (17) in a mixing manner.
3. An air flow highly coupled integrated coal gasification fuel cell power generation system according to claim 2, characterized in that the outlet of the desulfurization unit (12) is connected with a fine desulfurization unit (13).
4. An air flow highly coupled integrated coal gasification fuel cell power generation system according to claim 3, characterized in that the outlet of the fine desulfurization unit (13) is connected with a humidifier (14).
5. An air flow highly coupled integrated coal gasification fuel cell power generation system according to any one of claims 2 to 4, wherein the desulfurization unit (12) is provided with a waste water outlet and an exhaust gas outlet, wherein the waste water outlet is connected with a water treatment unit (15); the waste gas outlet is connected with a sulfur recovery unit (16).
6. The air flow highly-coupled integrated coal gasification fuel cell power generation system according to claim 1, wherein the outlet of the dust removal unit (4) is further connected with a recycle gas compressor (5), and the outlet of the recycle gas compressor (5) and the outlet of the high-temperature raw synthesis gas of the gasification furnace (2) are chilled and then connected to the inlet of the waste heat boiler (3).
7. The air flow highly-coupled integrated coal gasification fuel cell power generation system according to claim 1, wherein the outlet of the gas turbine compressor (20) is further connected with a waste heat recovery heat exchanger (23), the outlet of the waste heat recovery heat exchanger (23) is connected with the inlet of the air separation unit (27), the air separation unit (27) is provided with a pure oxygen outlet and a pure nitrogen outlet, wherein the oxygen removal outlet is connected with an oxygen compressor (29), and the outlet of the oxygen compressor (29) is connected with the oxygen inlet of the gasification furnace (2); the pure nitrogen outlet is connected with a nitrogen compressor (28), and the outlet of the nitrogen compressor (28) and the dry coal powder outlet of the coal preparation unit (1) are connected to the dry coal powder inlet of the gasification furnace (2) in a mixing manner.
8. An air flow highly coupled integrated gasification fuel cell power generation system in accordance with claim 7, wherein an air inlet is further provided in the air separation unit (27), and an air main air compressor (26) is connected to the air inlet.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273760A (en) * | 2019-07-11 | 2019-09-24 | 中国华能集团清洁能源技术研究院有限公司 | A kind of integral coal gasification fuel cell generation that air flow is highly coupled and method |
| CN111952642A (en) * | 2020-08-21 | 2020-11-17 | 清华大学 | High-efficiency low-vibration noise fuel cell power generation system |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273760A (en) * | 2019-07-11 | 2019-09-24 | 中国华能集团清洁能源技术研究院有限公司 | A kind of integral coal gasification fuel cell generation that air flow is highly coupled and method |
| CN111952642A (en) * | 2020-08-21 | 2020-11-17 | 清华大学 | High-efficiency low-vibration noise fuel cell power generation system |
| CN111952642B (en) * | 2020-08-21 | 2022-02-08 | 清华大学 | High-efficiency low-vibration noise fuel cell power generation system |
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