CN109723557A - The oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type is reformed - Google Patents
The oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type is reformed Download PDFInfo
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Abstract
The invention discloses the oxygen-enriched combusting carbon dioxide electricity generation systems that a kind of integrated solar methane dry type for belonging to solar energy auxiliary field of thermal power is reformed.The system is mainly made of the part such as solar energy reforming reactor, multithread heat exchanger, compressor, combustion chamber, turbine, regenerator, air-separating plant.Within the system, the high temperature solar of aggregation provides heat for methane and carbon dioxide catalytic reforming reaction, and the synthesis gas oxygen-enriched combusting of generation directly heats driving supercritical carbon dioxide power generation, and combustion product can be separated from tail gas；The carbon dioxide that thermal power generation generates can be used for fuel synthesis, carry out resource utilization；System realizes heat by adding multithread heat exchanger, low pressure turbineAnd pressureHigh efficiente callback.The system can reduce influence of the solar energy fluctuation to power cycle by fuel-side integrated solar；Simultaneously by the direct-fired supercritical carbon dioxide power cycle of oxygen-enriched combusting, carbon-based fuel power generation zero-emission is realized.
Description
Technical field
The invention belongs to solar energy to assist field of thermal power, in particular to what a kind of integrated solar methane dry type was reformed
Oxygen-enriched combusting carbon dioxide electricity generation system, specifically a kind of methane of Driven by Solar Energy and carbon dioxide catalytic reforming reaction collection
At in the direct-fired supercritical carbon dioxide electricity generation system of oxygen-enriched combusting.
Background technique
Solar energy has widely distributed, rich reserves, cleans the good characteristics such as renewable, is considered as most promising green
One of energy；Meanwhile fluctuation, the intermittence of solar energy restrict the development of solar energy.Solar energy is integrated into thermal power generation
It is considered as a kind of effective way for efficiently utilizing solar heat of nearly mid-term.In general, solar energy (is such as given by heat cycles working medium
Water, steam, air etc.) mode assist thermal power generation, not only can achieve higher thermoelectric conversion efficiency, but also can effectively subtract
Sunny can the intermittent influence to electric power output；However, the input share of solar energy is restricted by system parameter, to improve too
Sun can input share, generally require complicated system regulation measure or efficient energy storage means.Have from fuel-side integrated solar
It hopes the input share for further increasing solar energy, and stable chemical energy storage can be carried out to the sun by fuel, reduce the sun
It can influence of the fluctuation to power cycle thermal performance.
Methane reforming with carbon dioxide, also known as methane dry type are reformed, and are the processes of a high-intensitive heat absorption, are the sun
Energy fuel-side is integrated to provide condition.Methane dry type reformation be under the conditions of high-temperature catalytic, the main component methane of natural gas with
Reforming reaction occurs for carbon dioxide, generates high heating value synthesis gas；Driven by Solar Energy reforming reaction can be effectively converted into synthesis gas
Stable chemical energy, and can efficiently be utilized by the power cycle of high parameter.The conjunction that methane carbon dioxide reformation is generated
It is used for traditional gas turbine power generation at gas, although can achieve higher energy utilization efficiency, and defeated due to solar energy
Enter to can effectively reduce carbon emission；But it is still unavoidable from carbon dioxide and the discharge of other pollutants, and methane dry type weight
Whole reaction needs carbon dioxide as reactant, generally require to increase additionally catch carbon equipment.
The supercritical carbon dioxide power cycle that oxygen-enriched combusting directly heats driving can be directly separated acquisition two from exhaust
Carbonoxide realizes carbon-based fuel zero-emission power generation.In the power cycle, carbon-containing fuel and oxygen combustion directly heat super face
Boundary's carbon dioxide, the high temperature and high pressure flue gas of generation enter turbine acting power generation, and turbine exhaust passes through the cooling such as regenerator, cooler
It is cooling, isolate moisture and sour gas that burning generates；Dewatered high concentration carbon dioxide can after being pressurizeed by compressor
It is conveniently separated out the carbon dioxide for generation of burning.The power cycle catches carbon equipment without complicated, using oxygen-enriched combusting mode
Realize carbon-based fuel power generation zero-emission；And it is small and use back in Near The Critical Point compression wasted work using supercritical carbon dioxide
Hot means improve generating efficiency.If the methane dry type of direct-fired supercritical carbon dioxide power cycle and Driven by Solar Energy
It reforms and integrates, zero-emission can be not only realized under the premise of guaranteeing efficiency power generation, but also the carbon dioxide that power cycle generates can
Using the raw material synthesized as methane reforming fuel, the resource utilization of carbon dioxide is realized；Thus the hair of renewable energy is improved
Electric ratio reduces fossil energy consumption, realizes carbon-based fuel power generation zero-emission.
Summary of the invention
It generates electricity the purpose of the present invention is to propose to the oxygen-enriched combusting carbon dioxide that a kind of integrated solar methane dry type is reformed and is
System, which is characterized in that mixer is connect by heat exchanger tube on the left of multithread heat exchanger with solar energy reforming reactor, and solar energy is reformed
Reactor is connect further through heat exchanger tube among multithread heat exchanger with syngas cooler；Syngas cooler connects air storage chamber and closes
At air compressor；Air storage chamber is connect by synthesic gas compressor with combustion chamber；Air separator by oxygen compressor also with combustion
Burn room connection；Product heat cal rod on the right side of combustion chamber and high pressure turbine, No. 1 regenerator, product heat cal rods on the right side of No. 2 regenerators, gas cooler,
High pressure acid solution separator, carbon-dioxide gas compressor, No. 2 regenerators left side product heat cal rods, No. 1 regenerator left side product heat cal rod connect to be formed
Circuit；Carbon-dioxide gas compressor connects carbon dioxide storage room again, and is connected to No. 1 by heat exchanger tube on the right side of multithread heat exchanger and returns
The connecting node of product heat cal rod and No. 2 regenerators left side product heat cal rods on the left of hot device；Product heat cal rod and No. 2 regenerators on the right side of No. 1 regenerator
The connecting node of right side product heat cal rod is sequentially connected with low pressure turbine, low pressure acid solution separator, mixer；High pressure turbine is saturating with low pressure
Flat, generator series connection；Solar energy is projected on reflector by heliostat, then gathers solar energy reforming reactor.
The electricity-generating method for the oxygen-enriched combusting carbon dioxide electricity generation system that the integrated solar methane dry type is reformed, naturally
Gas is mixed by mixer with the low pressure CO 2 from low pressure acid solution separator, and natural gas carbon dioxide gas mixture passes through
Multithread heat exchanger preheating, is then sent to solar energy reforming reactor；The main component methane and carbon dioxide of natural gas are too
Positive catalytic reforming reaction to occur in reforming reactor, the high-temperature synthesis gas of generation passes sequentially through multithread heat exchanger, synthesis cooling
Device cools；Synthesis gas a part after cooling is passed through air storage chamber, remaining is sent by synthesic gas compressor pressurization to combustion chamber；
Air generates high-purity oxygen by air separator, is then sent by oxygen compressor pressurization to combustion chamber；High pressure synthesis gas
With high pressure oxygen in combustion chambers burn, the supercritical carbon dioxide of the product heat cal rod on the left of No. 1 regenerator is directly heated；Combustion chamber
The high temperature and high pressure flue gas of generation is done work by high pressure turbine, and the high-temperature exhaust air of generation enters product heat cal rod heat exchange on the right side of No. 1 regenerator
Cooling；The part of smoke separation of product heat cal rod outlet on the right side of No. 1 regenerator, which is sent to low pressure turbine, does work, the low-pressure low-temperature row of generation
Gas isolates acid solution by low pressure acid solution separator, and the high-purity low pressure CO 2 of low pressure acid solution separator outlet is sent to mixing
Device is mixed with natural gas；On the right side of No. 1 regenerator remaining flue gas of product heat cal rod outlet pass sequentially through product heat cal rods on the right side of No. 2 regenerators,
Gas cooler cools, and then isolates acid solution by high pressure acid solution separator；High pressure acid solution separator generates high-purity
It spends carbon dioxide to pressurize by carbon-dioxide gas compressor, a part of supercritical carbon dioxide of formation passes sequentially through No. 2 regenerators
Product heat cal rod preheating, is then sent to combustion chamber, for adjusting chamber temperature on the left of left side product heat cal rod, No. 1 regenerator；Titanium dioxide
Another part supercritical carbon dioxide of carbon compressor outlet is heated by multithread heat exchanger, is then returned with No. 2 regenerators left sides
Heat pipe outlet supercritical carbon dioxide converges, remaining supercritical carbon dioxide is stored in carbon dioxide storage as combustion product
Room；The shaft work that high pressure turbine and low pressure turbine generate, is done work by electrical power generators；Solar radiant energy pass sequentially through heliostat,
Reflector gathers solar energy reforming reactor, drives the main component methane of natural gas and carbon dioxide that reforming reaction occurs.
A part of low pressure CO 2 of product heat cal rod outlet is done work by low pressure turbine on the right side of No. 1 regenerator, pressure
It is reduced to 1atm and environment temperature respectively with temperature, recycles the pressure of carbon dioxideThe normal pressure titanium dioxide that low pressure turbine generates
Carbon participates in the reforming reaction of natural gas main component methane after low pressure acid solution separator separating acid gas and moisture.
The reaction temperature of the solar energy reforming reactor is 700-900 DEG C, and the high-temperature synthesis gas of outlet is changed by multithread
A part of the natural gas of hot device difference heating mixer outlet, the mixture of carbon dioxide and carbon-dioxide gas compressor outlet is super
Critical carbon dioxide.
The amount of carbon dioxide consumed by the solar energy reforming reactor be greater than burning generate carbon dioxide amount, two
The supercritical carbon dioxide of carbonoxide storage room need to be passed through heat exchanger tube on the right side of multithread heat exchanger, to maintain supercritical carbon dioxide dynamic
The amount of carbon dioxide working medium needed for power circulation.
Catalyst used in the solar energy reforming reactor be the metal-based catalyst for including Ni-based, ruthenium base and rhodium base,
Carbon-supported catalysts or both mixture.
It is described when the enhancing of solar energy irradiation intensity, natural gas and the carbon dioxide from low pressure acid solution separator are passed through mixed
The flow of clutch increases, and the flow that the supercritical carbon dioxide of carbon-dioxide gas compressor outlet is passed through carbon dioxide storage room subtracts
Small, a part of synthesis gas of syngas cooler outlet is stored in air storage chamber；When solar energy irradiation intensity dies down or without the sun
Can when, the flow that natural gas and the carbon dioxide from low pressure acid solution separator are passed through mixer reduces, carbon-dioxide gas compressor
The flow that the supercritical carbon dioxide of outlet is passed through carbon dioxide storage room increases, and the synthesis gas of air storage chamber storage need to pass through synthesis
Air compressor is passed through combustion chamber；When air storage chamber fuel shortage, natural gas straight connected synthesic gas compressor and is passed through combustion chamber, with
Maintain generated energy.
Beneficial effects of the present invention: solar energy passes through methane and carbon dioxide catalytic reforming from fuel-side and thermal power generation collection
At can reduce intensity of solar radiation and fluctuate influence to power cycle, and realize storage-stable in the form of chemical energy；Meanwhile
By integrated with the direct-fired supercritical carbon dioxide power cycle of oxygen-enriched combusting, generating efficiency can be improved, realize zero-emission,
And provide reaction required carbon dioxide for the reformation of methane dry type, it has the following characteristics that
(1) the excessive synthesis gas that solar energy catalytic reforming reaction generates is stored by air storage chamber, is suitable for solar energy spoke
The fluctuation of intensity is penetrated, reduces the influence to power cycle, while realizing the stable chemical energy storage of solar energy；When the synthesis of generation
When unsaturated vapor maintains electric power output, system, which can directly burn, consumes methane, without complicated standby operation measure.
Needed for (2) high-temperature synthesis gas that solar energy reforming reactor generates can be reacted by multithread heat exchanger heated reformate
A part of supercritical carbon dioxide in normal pressure carbon dioxide and power cycle carries out the high efficiente callback of heat, improves system capacity
Whole utilization efficiency.
(3) the low pressure flue gas under certain temperature is extracted from power circulation heat recovery device, is done work by low pressure turbine, is reduced to big
Atmospheric pressure, it is consistent with methyl hydride catalyzed reforming reaction pressure；Temperature can reduce environment temperature, the sour gas that segregated combustion generates simultaneously
After body and moisture, it can be used for the reforming reaction of methane, without increasing additional throttling, cooling device, and effectively recovered flue gas
PressureFurther increase the energy utilization efficiency of system.
(4) solar energy methane carbon dioxide reformation is followed applied to the direct-fired supercritical carbon dioxide power of oxygen-enriched combusting
Ring can realize zero-emission under the premise of guaranteeing efficiency power generation, catch carbon equipment without increase complexity；Meanwhile power cycle
The carbon dioxide that system burning generates can reform synthetic fuel by methane dry type, realize the resource utilization of carbon dioxide.
Detailed description of the invention
Fig. 1 is the oxygen-enriched combusting carbon dioxide electricity generation system schematic diagram that integrated solar methane dry type is reformed.
In figure: 1- mixer, 2- multithread heat exchanger, 3- solar energy reforming reactor, 4- syngas cooler, 5- gas storage
Room, 6- synthesic gas compressor, 7- air separator, 8- oxygen compressor, the combustion chamber 9-, 10- high pressure turbine, 11- low pressure turbine,
12- generator, 13-1 regenerator, 14-2 regenerator, 15- gas cooler, 16- high pressure acid solution separator, 17- titanium dioxide
Carbon compressor, 18- carbon dioxide storage room, 19- low pressure acid solution separator, 20- heliostat, 21- reflector.
Specific embodiment
The invention proposes integrated solar methane dry type reform oxygen-enriched combusting carbon dioxide electricity generation system, below with reference to
Attached drawing is explained.
The oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type as shown in Figure 1 is reformed, mixer 1 are logical
It crosses 2 left side heat exchanger tube of multithread heat exchanger to connect with solar energy reforming reactor 3, solar energy reforming reactor 3 is changed further through multithread
The connection of hot device 2 intermediate heat exchanger tube and syngas cooler 4；Syngas cooler 4 connects air storage chamber 5, and is compressed by synthesis gas
Machine 6 is connect with combustion chamber 9；Air separator 7 is also connect with combustion chamber 9 by oxygen compressor 8；Combustion chamber 9 and high pressure turbine
10, No. 1 13 right side product heat cal rod of regenerator, No. 2 14 right side product heat cal rods of regenerator, gas cooler 15, high pressure acid solution separator 16,
17, No. 2 14 left side product heat cal rods of regenerator of carbon-dioxide gas compressor, No. 1 13 left side product heat cal rod of regenerator series connection forming circuit；Dioxy
Change carbon compressor 17 and connect carbon dioxide storage room 18 again, and No. 1 regenerator is connected to by 2 right side heat exchanger tube of multithread heat exchanger
The connecting node of 13 left side product heat cal rods and No. 2 14 left side product heat cal rods of regenerator；No. 1 13 right side product heat cal rod of regenerator and No. 2 backheats
The connecting node of 14 right side product heat cal rod of device is sequentially connected with low pressure turbine 11, low pressure acid solution separator 19, mixer 1；High pressure is saturating
Flat 10 connect with low pressure turbine 11, generator 12；Solar energy is projected on reflector 21 by heliostat 20, is then gathered too
Positive energy reforming reactor 3.
The electricity generating principle for the oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type of the invention is reformed, day
Right gas is mixed by mixer 1 with the low pressure CO 2 from low pressure acid solution separator 19, natural gas carbon dioxide mix gas
Body is preheated by multithread heat exchanger 2, is then sent to solar energy reforming reactor 3；The main component methane and dioxy of natural gas
Change carbon and catalytic reforming reaction occurs in solar energy reforming reactor 3, the high-temperature synthesis gas of generation passes sequentially through multithread heat exchanger
2, synthesis cooler 4 cools；Synthesis gas a part after cooling is passed through air storage chamber 5, remaining is added by synthesic gas compressor 6
Force feed is to combustion chamber 9；Air generates high-purity oxygen by air separator 7, is then sent by the pressurization of oxygen compressor 8 to combustion
Burn room 9；High pressure synthesis gas and high pressure oxygen burn in combustion chamber 9, directly heat super from No. 1 13 left side product heat cal rod of regenerator
Critical carbon dioxide；The high temperature and high pressure flue gas that combustion chamber 9 generates is done work by high pressure turbine 10, and the high-temperature exhaust air of generation enters 1
The heat exchange cooling of number 13 right side product heat cal rod of regenerator；The part of smoke separation of No. 1 13 right side product heat cal rod of regenerator outlet is sent to low
Turbine 11 is pressed to do work, the low-pressure low-temperature exhaust of generation isolates acid solution, low pressure acid solution separator by low pressure acid solution separator 19
The high-purity low pressure CO 2 of 19 outlets is sent to mixer 1 to be mixed with natural gas；What No. 1 13 right side product heat cal rod of regenerator exported
Remaining flue gas passes sequentially through 14 right side product heat cal rod of No. 2 regenerators, gas cooler 15 cools, and then passes through high pressure acid solution point
Acid solution is isolated from device 16；The high-pureness carbon dioxide that high pressure acid solution separator 16 generates is added by carbon-dioxide gas compressor 17
Pressure, a part of supercritical carbon dioxide of formation pass sequentially through 14 left side product heat cal rod of No. 2 regenerators, return on the left of No. 1 regenerator 13
Heat pipe preheating, is then sent to combustion chamber 9, for adjusting chamber temperature；Another part that carbon-dioxide gas compressor 17 exports
Supercritical carbon dioxide is heated by multithread heat exchanger 2, then exports overcritical titanium dioxide with No. 2 14 left side product heat cal rods of regenerator
Carbon converges, remaining supercritical carbon dioxide is stored in carbon dioxide storage room 18 as combustion product；High pressure turbine 10 and low pressure
The shaft work that turbine 11 generates is generated electricity by generator 12 and is done work；Solar radiant energy passes sequentially through heliostat 20, reflector 21 is assembled
To solar energy reforming reactor 3, the reaction temperature of solar energy reforming reactor 3 is 700-900 DEG C, and the high-temperature synthesis gas of outlet is logical
Cross multithread heat exchanger distinguish heating mixer 1 outlet natural gas, carbon dioxide mixture and carbon-dioxide gas compressor 17 go out
Reforming reaction occurs for the main component methane and carbon dioxide of a part of supercritical carbon dioxide driving natural gas of mouth.
Wherein, a part of low pressure CO 2 of No. 1 13 right side product heat cal rod of regenerator outlet is done work by low pressure turbine 11,
Pressure and temperature is reduced to 1atm and environment temperature respectively, recycles the pressure of carbon dioxideThe normal pressure that low pressure turbine 11 generates
For carbon dioxide after 19 separating acid gas of low pressure acid solution separator and moisture, the reformation for participating in natural gas main component methane is anti-
It answers.Catalyst used in solar energy reforming reactor 3 is metal-based catalyst (Ni-based, ruthenium base, rhodium base), carbon-supported catalysts or two
Person's mixture.
Catalyst used in the solar energy reforming reactor be the metal-based catalyst for including Ni-based, ruthenium base and rhodium base,
Carbon-supported catalysts or both mixture.
When intensity of solar radiation is sufficiently large, i.e., the amount of carbon dioxide consumed by solar energy reforming reactor 3 is greater than combustion
The amount of the carbon dioxide generated is burnt, the supercritical carbon dioxide of carbon dioxide storage room 18 need to be passed through on the right side of multithread heat exchanger 2 and change
Heat pipe, with the amount of carbon dioxide working medium needed for maintaining supercritical carbon dioxide power cycle.
When solar irradiation enhanced strength, natural gas and the carbon dioxide from low pressure acid solution separator 19 are passed through mixer
1 flow increases, and the flow that the supercritical carbon dioxide that carbon-dioxide gas compressor 17 exports is passed through carbon dioxide storage room 18 subtracts
Small, a part of synthesis gas that syngas cooler 4 exports is stored in air storage chamber 5；When solar irradiation weakened or without the sun
Can when, the flow that natural gas and the carbon dioxide from low pressure acid solution separator 19 are passed through mixer 1 reduces, carbon dioxide compression
The flow that the supercritical carbon dioxide that machine 17 exports is passed through carbon dioxide storage room 18 increases, and the synthesis gas that air storage chamber 5 stores needs
Combustion chamber 9 is passed through by synthesic gas compressor 6；When 5 fuel shortage of air storage chamber, natural gas straight connected synthesic gas compressor 6
It is passed through combustion chamber 9, to maintain generated energy.
Claims (7)
1. the oxygen-enriched combusting carbon dioxide electricity generation system that a kind of integrated solar methane dry type is reformed, which is characterized in that mixer
(1) it is connect by heat exchanger tube on the left of multithread heat exchanger (2) with solar energy reforming reactor (3), solar energy reforming reactor (3) is again
It is connect by the intermediate heat exchanger tube of multithread heat exchanger (2) with syngas cooler (4)；Syngas cooler (4) connects air storage chamber (5)
With synthesic gas compressor (6)；Air storage chamber (5) is connect by synthesic gas compressor (6) with combustion chamber (9)；Air separator (7) is logical
Oxygen compressor (8) is crossed also to connect with combustion chamber (9)；It is returned on the right side of combustion chamber (9) and high pressure turbine (10), No. 1 regenerator (13)
Product heat cal rod, gas cooler (15), high pressure acid solution separator (16), carbon-dioxide gas compressor on the right side of heat pipe, No. 2 regenerators (14)
(17), product heat cal rod, No. 1 regenerator (13) left side product heat cal rod series connection forming circuit on the left of No. 2 regenerators (14)；Carbon dioxide compression
Machine (17) connects carbon dioxide storage room (18) again, and is connected to No. 1 regenerator by heat exchanger tube on the right side of multithread heat exchanger (2)
(13) connecting node of left side product heat cal rod and No. 2 regenerators (14) left side product heat cal rods；Product heat cal rod and 2 on the right side of No. 1 regenerator (13)
The connecting node of product heat cal rod and low pressure turbine (11) on the right side of number regenerator (14), low pressure acid solution separator (19), mixer (1) according to
Secondary connection；High pressure turbine (10) is connected with low pressure turbine (11), generator (12)；Solar energy is projected instead by heliostat (20)
In emitter (21), solar energy reforming reactor (3) are then gathered.
2. a kind of hair for the oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type described in claim 1 is reformed
Method for electrically, which is characterized in that natural gas is mixed with the low pressure CO 2 from low pressure acid solution separator (19) by mixer (1)
It closes, natural gas carbon dioxide gas mixture is preheated by multithread heat exchanger (2), is then sent to solar energy reforming reactor (3)；
Catalytic reforming reaction occurs in solar energy reforming reactor (3) for the main component methane and carbon dioxide of natural gas, generation
High-temperature synthesis gas passes sequentially through multithread heat exchanger (2), synthesis cooler (4) cools；Synthesis gas a part after cooling is logical
Enter air storage chamber (5), remaining is sent by synthesic gas compressor (6) pressurization to combustion chamber (9)；Air is produced by air separator (7)
Then raw high-purity oxygen is sent by oxygen compressor (8) pressurization to combustion chamber (9)；High pressure synthesis gas and high pressure oxygen are firing
Room (9) burning is burnt, the supercritical carbon dioxide of the product heat cal rod on the left of No. 1 regenerator (13) is directly heated；Combustion chamber (9) generates
High temperature and high pressure flue gas done work by high pressure turbine (10), the high-temperature exhaust air of generation enters product heat cal rod on the right side of No. 1 regenerator (13)
Heat exchange cooling；The part of smoke separation of product heat cal rod outlet on the right side of No. 1 regenerator (13), which is sent to low pressure turbine (11), does work, and generates
Low-pressure low-temperature exhaust acid solution is isolated by low pressure acid solution separator (19), the high-purity of low pressure acid solution separator (19) outlet
Low pressure CO 2 send to mixer (1) and mixes with natural gas；On the right side of No. 1 regenerator (13) remaining flue gas of product heat cal rod outlet according to
It is secondary to pass through product heat cal rod, gas coolers (15) on the right side of No. 2 regenerators (14) and cool, then pass through high pressure acid solution separator
(16) acid solution is isolated；The high-pureness carbon dioxide that high pressure acid solution separator (16) generates is added by carbon-dioxide gas compressor (17)
Pressure, a part of supercritical carbon dioxide of formation pass sequentially through product heat cal rod on the left of No. 2 regenerators (14), No. 1 regenerator (13) left side
Side product heat cal rod preheating, is then sent to combustion chamber (9), for adjusting chamber temperature；Carbon-dioxide gas compressor (17) outlet
Another part supercritical carbon dioxide is heated by multithread heat exchanger (2), is then exported with product heat cal rod on the left of No. 2 regenerators (14)
Supercritical carbon dioxide converges, remaining supercritical carbon dioxide is stored in carbon dioxide storage room (18) as combustion product；It is high
The shaft work for pressing turbine (10) and low pressure turbine (11) to generate is generated electricity by generator (12) and is done work；Solar radiant energy passes sequentially through
Heliostat (20), reflector (21) gather solar energy reforming reactor (3), drive the main component methane and dioxy of natural gas
Change carbon and reforming reaction occurs.
3. the oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type according to claim 2 is reformed
Electricity-generating method, which is characterized in that a part of low pressure CO 2 of product heat cal rod outlet passes through low on the right side of No. 1 regenerator (13)
Turbine (11) acting is pressed, pressure and temperature is reduced to 1atm and environment temperature respectively, recycles the pressure of carbon dioxideLow pressure is saturating
The normal pressure carbon dioxide that flat (11) generate participates in natural gas master after low pressure acid solution separator (19) separating acid gas and moisture
Want the reforming reaction of components methane.
4. the oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type according to claim 2 is reformed
Electricity-generating method, which is characterized in that the reaction temperature of the solar energy reforming reactor (3) is 700-900 DEG C, and the high temperature of outlet closes
Pass through multithread heat exchanger (2) natural gas that heating mixer (1) exports respectively, the mixture and carbon dioxide of carbon dioxide at gas
A part of supercritical carbon dioxide of compressor (17) outlet.
5. the oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type according to claim 2 is reformed
Electricity-generating method, which is characterized in that the amount of carbon dioxide consumed by the solar energy reforming reactor (3) is greater than what burning generated
The amount of carbon dioxide, the supercritical carbon dioxide of carbon dioxide storage room (18) need to be passed through heat exchanger tube on the right side of multithread heat exchanger (2),
With the amount of carbon dioxide working medium needed for maintaining supercritical carbon dioxide power cycle.
6. the oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type according to claim 2 is reformed
Electricity-generating method, which is characterized in that catalyst used in the solar energy reforming reactor (3) be include Ni-based, ruthenium base and rhodium base
Metal-based catalyst, carbon-supported catalysts or both mixture.
7. the oxygen-enriched combusting carbon dioxide electricity generation system that integrated solar methane dry type according to claim 2 is reformed
Electricity-generating method, which is characterized in that when solar energy irradiation intensity enhancing when, natural gas and come from low pressure acid solution separator (19) two
The flow that carbonoxide is passed through mixer (1) increases, and the supercritical carbon dioxide of carbon-dioxide gas compressor (17) outlet is passed through dioxy
The flow for changing Carbon stock room (18) reduces, and a part of synthesis gas of syngas cooler (4) outlet is stored in air storage chamber (5)；
When solar energy irradiation intensity dies down or when without solar energy, natural gas and the carbon dioxide from low pressure acid solution separator (19) are passed through
The flow of mixer (1) reduces, and the supercritical carbon dioxide of carbon-dioxide gas compressor (17) outlet is passed through carbon dioxide storage room
(18) flow increases, and the synthesis gas of air storage chamber (5) storage need to be passed through combustion chamber (9) by synthesic gas compressor (6)；Work as gas storage
When room (5) fuel shortage, natural gas straight connected synthesic gas compressor (6) and is passed through combustion chamber (9), to maintain generated energy.
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| CN113090349A (en) * | 2021-03-29 | 2021-07-09 | 西安交通大学 | Photo-thermal type coal supercritical water gasification hydrogen-heat-power cogeneration system and working method |
| CN114522518A (en) * | 2022-01-26 | 2022-05-24 | 哈尔滨工业大学（深圳） | Carbon-containing recycling gas power plant low-cost carbon emission reduction system and method |
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