CN109356721A - The supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification - Google Patents
The supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification Download PDFInfo
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- CN109356721A CN109356721A CN201811342746.5A CN201811342746A CN109356721A CN 109356721 A CN109356721 A CN 109356721A CN 201811342746 A CN201811342746 A CN 201811342746A CN 109356721 A CN109356721 A CN 109356721A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/22—Carbon dioxide
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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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
- Y02P20/133—Renewable energy sources, e.g. sunlight
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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
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Abstract
The invention discloses the supercritical carbon dioxide zero-emission electricity generation systems for the integrated solar coal gasification for belonging to coal-based power generation field.The system is mainly made of the part such as solar energy gasification furnace, combustion chamber, turbine, regenerator, air-separating plant.Within the system, the high temperature solar of aggregation provides heat for coal gasification, and the synthesis gas and oxygen combustion of generation directly heat driving supercritical carbon dioxide power generation, and combustion product can be separated from tail gas realizes zero-emission；The extra synthesis gas that coal gasification generates is stored in air storage chamber, is used for energy storage；The waste heat of the processes such as purified synthesis gas, air separation is realized and is recycled by heat cycles working medium, generation steam, dry raw coal.The system is coupled by the efficient system integration, is expected to reduce fossil energy consumption, is widened the utilization ways of solar energy, realizes the power generation of coal derived fuel high-efficiency cleaning.
Description
Technical field
The invention belongs to coal-based power generation field, in particular to a kind of supercritical carbon dioxide zero of integrated solar coal gasification
Electricity generation system is discharged, specifically a kind of coal gasification of Driven by Solar Energy is integrated in the direct-fired overcritical dioxy of oxygen-enriched combusting
Change carbon electricity generation system.
Background technique
Coal is the maximum fossil energy of storage capacity in the world as important fuel used to generate electricity, and the storage capacity detected at present is about
1000000000000 tons, be the guarantee of energy security.But coal fired power plant is the main source of CO2 emission, every hair 1 kwh is about arranged
1 kilogram of carbon dioxide is put, and low along with energy utilization efficiency, the problems such as pollutant emission is serious.With to energy security, ring
The pay attention to day by day of border protection etc., reducing coal consumption, reducing CO2 emission, improve energy utilization efficiency is current weight
The research direction wanted.
The direct-fired supercritical carbon dioxide power cycle of oxygen-enriched combusting is considered as a kind of carbon-based combustion of great potential
Expect the technological means of efficient zero-discharging power generation.In the power cycle, carbon-containing fuel and oxygen combustion heat High-pressure supercritical two
Carbonoxide, the high temperature and high pressure flue gas of generation enter turbine acting power generation, and turbine exhaust is cooled down cold by regenerator, cooler etc.
But, the moisture that burning generates is isolated；Dewatered high concentration carbon dioxide after compressor, pump pressurization by that can be conveniently separated
Burn the carbon dioxide and other trace amount of foreign gas of generation out.The power cycle catches carbon equipment without complicated, and use is oxygen-enriched
Combustion system realizes carbon-based fuel power generation zero-emission；And using supercritical carbon dioxide Near The Critical Point compression wasted work it is small with
And backheat means are used, improve generating efficiency.
If the direct-fired supercritical carbon dioxide power cycle of oxygen-enriched combusting, need to be to the advanced promoting the circulation of qi of coal using coal as fuel
Processing, however traditional coal gasification course generally requires to introduce part of oxygen, provides reaction heat using the part burning of coal, increases
The consumption of coal is added；Coal gasification generates high-temperature synthesis gas in decontamination process, generally requires the heat exchange of multiple complexity
Equipment carries out heat recovery.If can avoid the part burning of coal using Driven by Solar Energy coal gasification, reducing coal consumption, together
Shi Wuxu consumes oxygen, reduces power consumption；The biggish ratio of water to coal of solar energy coal gasification also contributes to simplifying process Waste Heat Recovery
Process.
In conclusion the invention proposes a kind of supercritical carbon dioxide zero-emission of integrated solar coal gasification power generation systems
System, the coal gasification of Driven by Solar Energy is coupled with the direct-fired supercritical carbon dioxide power cycle depth of oxygen-enriched combusting, is had
It hopes the power generation ratio for improving renewable energy, reduces fossil energy consumption, realize zero-emission, and further increase using energy source effect
Rate has a good application prospect in coal-based power generation field.
Summary of the invention
The purpose of the present invention is to propose to a kind of supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification,
Pre-drying device connects solar energy gasification furnace, and solar energy gasification furnace and CO2 heater, steam generator are connected into circuit；
Steam generator is connect further through syngas cooler with purification separation device；Purification separation device is separately connected air storage chamber and conjunction
At air compressor；Synthesic gas compressor connects combustion chamber；Combustion chamber connect forming circuit with turbine, regenerator, and turbine connects again
Generator；Regenerator again with gas cooler, water-separator, carbon-dioxide gas compressor, intercooler, carbon dioxide pump string
It is unified into circuit；Air-separating plant connects pre-drying device, and air-separating plant is connect further through oxygen compressor with combustion chamber；
Solar energy is projected on reflector by heliostat, then gathers solar energy gasification furnace.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification, it is former
Coal is introduced into pre-drying device drying process, and moisture-free coal enters solar energy gasification furnace, with the steam generation from steam generator
Gasification reaction generates crude synthesis gas, and crude synthesis gas passes sequentially through CO2 heater, steam generator, syngas cooler,
Synthesis gas after cooling enters impurity, the purified synthesis gas a part such as purification separation device removing sulfide, water and enters storage
Gas chamber, remaining enters combustion chamber by synthesic gas compressor pressurization, directly adds with the high pressure oxygen burning from oxygen compressor
Supercritical carbon dioxide of the heat from CO2 heater, the high-temperature high-pressure fuel gas of formation enter turbine acting, driving power generation
Machine power generation, the high-temperature exhaust air of generation pass sequentially through regenerator, gas cooler, and flue gas after cooling is separated by water-separator
Moisture forms the carbon dioxide of high concentration out；The carbon dioxide of high concentration is compressed by carbon-dioxide gas compressor, then through centre
Cooler is cooling, and the highdensity supercritical carbon dioxide of formation is boosted by carbon dioxide pump again, and a part separation is sealed up for safekeeping,
Remaining to enter regenerator recovery gas turbine exhaust gas heat, the supercritical carbon dioxide after heating is further added by CO2 heater
Heat adjusts ignition temperature into combustion chamber；The high-purity oxygen that air enters air-separating plant generation passes through oxygen compressor
Pressurization enters combustion chamber, remaining high temperature nitrogen enters the dry raw coal of pre-drying device；Solar radiant energy pass sequentially through heliostat,
Transmitter gathers solar energy gasification furnace, driving coal gasification reaction.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification, institute
The solar radiant energy stated is projected on transmitter by heliostat, then gathers solar energy gasification furnace, is reacted for coal gasification
Heat is provided, gasification temperature maintains 1100 DEG C or so.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification, when
When solar radiation intensity is big, synthesis gas a part that coal gasification generates enters air storage chamber, remaining is added by synthesic gas compressor
It is pressed into combustion chamber；When intensity of solar radiation becomes smaller or when without solar energy, the synthesis gas of air storage chamber by synthesic gas compressor into
Enter combustion chamber, the continuous and stable of electric power is maintained to export.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification, it is empty
The high temperature nitrogen that air separation generates enters most of moisture in pre-drying device removing raw coal；High-temperature crude synthesis gas successively leads to
CO2 heater, steam generator progress heat recovery are crossed, temperature is reduced to 90 DEG C or so.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification is high
Concentration carbon dioxide isolates the carbon dioxide of syngas combustion generation after booster pump is forced into 30MPa or so, without increasing
Other carbon capture units.
The present invention has the following advantages and beneficial effects: by introduce solar energy can reduce coal gasification course coal,
Power consumption simplifies process waste heat recovery scheme；Meanwhile by with the direct-fired supercritical carbon dioxide power of oxygen-enriched combusting
Coupling integration is recycled, generating efficiency can be improved, zero-emission is realized, has the following characteristics that
(1) high temperature solar assembled is used for coal gasification, can burn to avoid the part of coal, and reduction coal and electric power disappear
Consumption；The coal gasification ratio of water to coal with higher of Driven by Solar Energy simultaneously, a large amount of synthesis gas waste heat can be used to produce gasification institute
The steam needed simplifies synthesis gas waste heat heat recovery process.
(2) stable chemical energy storage may be implemented in the synthesis gas of air storage chamber excess of storage, adapts to solar radiation intensity
Variation, guarantees the steady output of electric power, reduces influence of the solar radiation strength fluctuation to system performance.
(3) solar energy coal gasification and the coupling of power circulation system depth, the process waste heat of air-separating plant are used for drying
Raw coal, the process waste heat of purified synthesis gas are used to heat supercritical carbon dioxide and generate steam, and reasonable removal process waste heat mentions
High generation efficiency.
(4) solar energy coal gasification is applied to the direct-fired supercritical carbon dioxide power cycle of oxygen-enriched combusting, Ke Yi
Zero-emission is realized under the premise of the efficiency power generation for guaranteeing coal derived fuel, while having widened the utilization ways of coal base solar fuel.
Detailed description of the invention
Fig. 1 is the supercritical carbon dioxide zero-emission electricity generation system schematic diagram of integrated solar coal gasification.
In figure: 1- pre-drying device, 2- solar energy gasification furnace, 3- CO2 heater, 4- steam generator, 5- synthesis
Gas Cooler, 6- purification separation device, 7- air storage chamber, 8- synthesic gas compressor, the combustion chamber 9-, 10- turbine, 11- generator,
12- regenerator, 13- gas cooler, 14- water-separator, 15- carbon-dioxide gas compressor, 16- intercooler, 17- dioxy
Change carbon pump, 18- air-separating plant, 19- oxygen compressor, 20- heliostat, 21- reflector.
Specific embodiment
The invention proposes the supercritical carbon dioxide zero-emission electricity generation systems of integrated solar coal gasification, below with reference to attached
Figure is explained.
The supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification as shown in Figure 1, pre-drying device 1
Solar energy gasification furnace 2 is connected, solar energy gasification furnace 2 and CO2 heater 3, steam generator 4 are connected into circuit；Steam hair
Raw device 4 is connect further through syngas cooler 5 with purification separation device 6；Purification separation device 6 is separately connected air storage chamber 7 and closes
At air compressor 8；Synthesic gas compressor 8 connects combustion chamber 9；Combustion chamber 9 connect forming circuit with turbine 10, regenerator 12, thoroughly
Flat connection generator 11 again；Regenerator is again cold with gas cooler 13, water-separator 14, carbon-dioxide gas compressor 15, centre
But device 16, carbon dioxide pump 17 are connected into circuit；Air-separating plant 18 connects pre-drying device 1, and air-separating plant 18 is again
It is connect by oxygen compressor 19 with combustion chamber 9；Solar energy is projected on reflector 21 by heliostat 20, is then gathered too
Positive energy gasification furnace 2.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification, it is former
Coal is introduced into the drying process of pre-drying device 1, and moisture-free coal enters solar energy gasification furnace 2, sends out with the steam from steam generator 4
Raw gasification reaction, generates crude synthesis gas, and crude synthesis gas passes sequentially through CO2 heater 3, steam generator 4, synthesis air cooling
But device 5, the synthesis gas after cooling enter purification separation device 6 and remove the impurity such as sulfide, water, purified synthesis gas a part
Into air storage chamber 7, remaining enters combustion chamber 9 by the pressurization of synthesic gas compressor 8, with the high pressure oxygen from oxygen compressor 19
Burning directly heats the supercritical carbon dioxide from CO2 heater 3, and the high-temperature high-pressure fuel gas of formation enters turbine 10
Acting, driven generator 11 generate electricity, and the high-temperature exhaust air of generation passes sequentially through regenerator 12, gas cooler 13, cigarette after cooling
Gas isolates the carbon dioxide that moisture forms high concentration by water-separator 14；The carbon dioxide of high concentration passes through carbon dioxide
Compressor 15 compresses, then cooling through intercooler 16, and the highdensity supercritical carbon dioxide of formation passes through titanium dioxide again
Carbon pump 17 boosting, a part separation seal up for safekeeping, remaining enter 12 recovery gas turbine of regenerator, 10 exhaust gas heat, overcritical two after heating
Carbonoxide is further heated by CO2 heater 3, adjusts ignition temperature into combustion chamber 9；Air enters air separation
The high-purity oxygen that device 18 generates enters combustion chamber by the pressurization of oxygen compressor 19, remaining high temperature nitrogen enters predrying
Device 1 dries raw coal；Solar radiant energy passes sequentially through heliostat 20, transmitter 21 gathers solar energy gasification furnace 21, drives coal
Gasification reaction.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification, institute
The solar radiant energy stated is projected on transmitter 21 by heliostat 20, then gathers solar energy gasification furnace 21, is the gas of coal
Change reaction and heat is provided, gasification temperature maintains 1100 DEG C or so.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification, when
When solar radiation intensity is big, synthesis gas a part that coal gasification generates enters air storage chamber 7, remaining passes through synthesic gas compressor 8
Pressurization enters combustion chamber 9；When intensity of solar radiation becomes smaller or when without solar energy, the synthesis gas of air storage chamber 7 passes through synthesis gas and compresses
Machine 8 enters combustion chamber 9, and the continuous and stable of electric power is maintained to export.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification, it is empty
The high temperature nitrogen that air separation 18 generates enters pre-drying device 1 and removes most of moisture in raw coal；High-temperature crude synthesis gas according to
Secondary to carry out heat recovery by CO2 heater 3, steam generator 4, temperature is reduced to 90 DEG C or so.
The integrated electricity generating principle of the supercritical carbon dioxide zero-emission electricity generation system of the integrated solar coal gasification is high
Concentration carbon dioxide isolates the carbon dioxide of syngas combustion generation after booster pump 17 is forced into 30MPa or so, without increasing
Add other carbon capture units.
Claims (6)
1. a kind of supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification, which is characterized in that predrying dress
(1) connection solar energy gasification furnace (2) is set, solar energy gasification furnace (2) is connected with CO2 heater (3), steam generator (4)
At circuit；Steam generator (4) is connect further through syngas cooler (5) with purification separation device (6)；Purification separation device
(6) air storage chamber (7) and synthesic gas compressor (8) are separately connected；Synthesic gas compressor (8) connects combustion chamber (9)；Combustion chamber (9)
With turbine (10), the air inlet pipe of regenerator (12), gas cooler (13), carbon-dioxide gas compressor (15), intercooler
(16), shape is connected in series in carbon dioxide pump (17), the escape pipe of regenerator (12), CO2 heater (3) and combustion chamber (9)
At circuit；Water-separator (14) is connect by steam generator (4) with solar energy gasification furnace (2)；Turbine (10) connects hair again
Motor (11)；Air-separating plant (18) is separately connected pre-drying device (1) and oxygen compressor (19)；Oxygen compressor (19)
It is connect with combustion chamber (9)；Solar energy is projected on reflector (21) by heliostat (20), then gathers solar energy gasification furnace
(2)。
2. a kind of hair of the supercritical carbon dioxide zero-emission electricity generation system of integrated solar described in claim 1, coal gasification
Method for electrically, which is characterized in that raw coal is introduced into pre-drying device (1) drying process, and moisture-free coal enters solar energy gasification furnace (2),
With the steam generation gasification reaction for coming from steam generator (4), crude synthesis gas is generated, crude synthesis gas passes sequentially through carbon dioxide and adds
Hot device (3), steam generator (4), syngas cooler (5), the synthesis gas after cooling enter purification separation device (6) removing sulphur
The impurity such as compound, water, purified synthesis gas a part enter air storage chamber (7), remaining by synthesic gas compressor (8) pressurize into
Enter combustion chamber (9), directly heats with the high pressure oxygen burning from oxygen compressor (19) from CO2 heater (3)
Supercritical carbon dioxide, the high-temperature high-pressure fuel gas of formation enter turbine (10) acting, driven generator (11) power generation；The height of generation
Temperature exhaust passes sequentially through regenerator (12), gas cooler (13), and flue gas after cooling is isolated by water-separator (14)
The carbon dioxide of moisture formation high concentration；The carbon dioxide of high concentration is compressed by carbon-dioxide gas compressor (15), is then passed through
Between cooler (16) it is cooling, the highdensity supercritical carbon dioxide of formation passes through carbon dioxide pump (17) boosting, a part again
Separation is sealed up for safekeeping, remaining enters regenerator (12) recovery gas turbine (10) exhaust gas heat, and the supercritical carbon dioxide after heating passes through two
It aoxidizes carbon heater (3) further to heat, adjusts ignition temperature into combustion chamber (9)；Air enters air-separating plant (18)
The high-purity oxygen of generation enters combustion chamber by oxygen compressor (19) pressurization, remaining high temperature nitrogen enters pre-drying device
(1) dry raw coal；Solar radiant energy passes sequentially through heliostat (20), transmitter (21) gathers solar energy gasification furnace (21), drives
Dynamic coal gasification reaction.
3. the hair of the supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification according to claim 2
Method for electrically, which is characterized in that the solar radiant energy is projected on transmitter (21) by heliostat (20), is then gathered
Solar energy gasification furnace (21) provides heat for coal gasification reaction, and gasification temperature maintains 1100 DEG C or so.
4. the hair of the supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification according to claim 2
Method for electrically, which is characterized in that when solar radiation intensity is big, synthesis gas a part that coal gasification generates enters air storage chamber (7),
Remaining enters combustion chamber (9) by synthesic gas compressor (8) pressurization；When intensity of solar radiation becomes smaller or when without solar energy, gas storage
The synthesis gas of room (7) enters combustion chamber (9) by synthesic gas compressor (8), and the continuous and stable of electric power is maintained to export.
5. the hair of the supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification according to claim 2
Method for electrically, which is characterized in that the high temperature nitrogen that air-separating plant (18) generates enters big in pre-drying device (1) removing raw coal
Partial moisture；High-temperature crude synthesis gas passes sequentially through CO2 heater (3), steam generator (4) carries out heat recovery, temperature
Degree is reduced to 90 DEG C.
6. the hair of the supercritical carbon dioxide zero-emission electricity generation system of integrated solar coal gasification according to claim 2
Method for electrically, which is characterized in that high concentration carbon dioxide isolates syngas combustion production after booster pump (17) is forced into 30MPa
Raw carbon dioxide, without increasing other carbon capture units.
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| CN111102073A (en) * | 2019-12-16 | 2020-05-05 | 西安交通大学 | Supercritical carbon dioxide circulating system suitable for coal gasification and operation method thereof |
| CN111140359A (en) * | 2019-12-16 | 2020-05-12 | 华北电力大学 | Solar-driven coal gasification methanol synthesis and zero-emission power generation co-production system |
| CN113339696A (en) * | 2021-05-18 | 2021-09-03 | 西安交通大学 | Carbon dioxide pressurizing storage device and method |
| CN114776392A (en) * | 2022-03-29 | 2022-07-22 | 西安交通大学 | System and method for generating power based on integrated coal gasification and complete carbon capture cycle |
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