CN108442982A - Coal-based methanol synthesis and the power generating simultaneously system of integrated solar - Google Patents
Coal-based methanol synthesis and the power generating simultaneously system of integrated solar Download PDFInfo
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- CN108442982A CN108442982A CN201810380479.4A CN201810380479A CN108442982A CN 108442982 A CN108442982 A CN 108442982A CN 201810380479 A CN201810380479 A CN 201810380479A CN 108442982 A CN108442982 A CN 108442982A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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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
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
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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
- C10J2300/00—Details of gasification processes
- C10J2300/12—Heating the gasifier
- C10J2300/1284—Heating the gasifier by renewable energy, e.g. solar energy, photovoltaic cells, wind
- C10J2300/1292—Heating the gasifier by renewable energy, e.g. solar energy, photovoltaic cells, wind mSolar energy
-
- 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
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
-
- 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
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1656—Conversion of synthesis gas to chemicals
- C10J2300/1665—Conversion of synthesis gas to chemicals to alcohols, e.g. methanol or ethanol
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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
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
- C10J2300/1675—Integration of gasification processes with another plant or parts within the plant with the production of electricity making use of a steam turbine
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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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses belong to coal-based methanol synthesis and power generating simultaneously system of the coal grading using the integrated solar in field.The system includes mainly the three subsystems such as solar energy upgrading, methanol-fueled CLC, coal fired power generation.In the system, coal upgrading, methanol-fueled CLC and the coal fired power generation three coupling of Driven by Solar Energy, slot type, tower type solar are respectively the pyrolysis of coal, gasifying provides heat, and waste heat, the waste material of upgrading and Production of methanol realize that step recycles by the boiler of Thermal generation unit, boiler circuit.The system is coupled by the efficient system integration, has widened the utilization ways of solar energy, realizes coal poly-generation, while being expected to reduce fossil energy consumption, improves the comprehensive utilization ratio of energy.
Description
Technical field
The invention belongs to coal gradings to utilize field, more particularly to the coal-based methanol synthesis and power generation of a kind of integrated solar
Co-generation system, specifically a kind of solar energy auxiliary coal grading upgrading, the integrated power generation system with methanol-fueled CLC.
Background technology
Coal is the maximum fossil energy of storage capacity in the world, about 1,000,000,000,000 tons of the storage capacity detected at present, almost stone
Three times of oily storage capacity are the guarantees of world energy sources safety.But usually there is energy utilization effect during the utilization of coal
The problems such as rate is low, carbon dioxide and serious pollutant emission.With the pay attention to day by day to energy security, environmental protection etc.,
It is current important research direction that the high-efficiency cleaning of coal resources, which utilizes,.
The indirect liquefaction technology of coal is a kind of clean utilization mode of coal resources, is gasified first to coal, production
Synthesis gas is further processed into liquid fuel (methanol etc.), can effectively reduce the discharge of carbon dioxide and pollutant, widen coal
Charcoal utilization ways.But the grading process such as pyrolysis, the gasification of the coal during the indirect liquefaction of traditional coal need to absorb a large amount of energy
Amount, it usually needs the part burning of coal provides；The utilization ratio of the waste material waste heat generated in the upgrading of coal and Production of methanol
It is often also bad.If introducing solar energy in the grading process of coal, and coupled with conventional Thermal generation unit depth, be expected into
One step improves the comprehensive utilization ratio of energy, reduces the discharge of carbon and pollutant.
In conclusion the present invention proposes a kind of co-generation system of the coal-based methanol synthesis and power generation of integrated solar, have
Prestige further increases efficiency of energy utilization, reduces fossil energy consumption, reduces the discharge of carbon dioxide and pollutant；The system needle
Efficient coupling is carried out to the upgrading of solar energy auxiliary coal, methanol-fueled CLC and coal fired power generation three, the energy of different tastes is carried out
Reasonable cascade utilization, realize methanol, upgraded coal and electric power Poly-generation, coal grading using field have extensively using before
Scape.
Invention content
The purpose of the present invention is to propose to a kind of synthesis of the coal-based methanol of integrated solar and power generating simultaneously system, integrate the sun
Coal-based methanol synthesis and the power generating simultaneously system of energy include mainly solar energy upgrading subsystem, methanol-fueled CLC subsystem, coal-fired hair
Electronic system three parts；It is characterized in that, coal breaker 1 connects pre-drying device 2, pre-drying device 2 is separately connected boiler 22, and
Pyrolysis oven 3, pyrolysis oven 3 are separately connected the cold coal device 29 of heat collector 4, gasification furnace 5 and high temperature of solar energy, the cold coal device 29 of high temperature with it is low
The cold coal device 30 of temperature, compression-molding apparatus 31 are connected；The cold coal device of high temperature 29 be divided into not with the input port of high-pressure heater 28, delivery outlet
Be correspondingly connected with, high-pressure heater 28 is connect with the high pressure extraction of steam turbine 23, the high pressure extraction of steam turbine 23 again with too
Gasification furnace 5 connects in positive energy upgrading subsystem；Low-pressure heater 26 is connect with the low-pressure pumping steam of steam turbine 23, low temperature cold coal device
30 are correspondingly connected with the input port of low-pressure heater 26, delivery outlet respectively；Steam turbine 23 connects generator 24, steam discharge connection
Condenser 25, condenser 25 are connect with low-pressure heater 26 again；Pass through water supply between high-pressure heater 28 and low-pressure heater 26
27 connection of pump；High-pressure heater 28 is connected with boiler 22, steam turbine 23 again；The output connection methanol-fueled CLC subsystem of gasification furnace 5
In 8, No. 1 air-water heat exchanger 8 of No. 1 air-water heat exchanger again connect with steam turbine 23；No. 1 air-water heat exchanger 8 and CO converters
9, No. 2 air-water heat exchangers 10 connect into circuit；No. 1 air-water heat exchanger 8 is also directly connected to No. 3 air-waters around CO converters 9 and changes
11, No. 3 air-water heat exchangers 11 of hot device are separately connected the delivery outlet of No. 2 air-water heat exchangers 10 and high-pressure heater 28 again；No. 3
Air-water heat exchanger 11 also with No. 5 air-water heat exchangers 12, purifier 13, compressor 14, gas-to-gas heat exchanger 15, methanol-fueled CLC
Device 16 and No. 4 air-water heat exchangers 17 are connected into circuit；Wherein, the input port of No. 5 air-water heat exchangers 12 and low-pressure heater 26
It is separately connected with delivery outlet；No. 4 air-water heat exchangers 17 are also connect with the input port of high-pressure heater 28；Compressor 14 and gas-gas
Heat exchanger 15, gas liquid exchanger 20 and gas-liquid separation device 19 are also connected into circuit；Cooler 18 is separately connected solution-air heat exchange
Device 20 and gas-liquid separation device 19；Solar energy is thrown by heliostat 6 described in the output connection methanol purification of gas liquid exchanger 20 device 21
It is mapped on reflector 7, then gathers in gasification furnace 5.
The operation principle of the coal-based methanol synthesis and power generating simultaneously system of the integrated solar, raw coal first pass through coal breaker
Pulverization process is dried into pre-drying device, and a part enters boiler combustion, and it is anti-that remaining enters pyrolysis oven generation low temperature pyrogenation
It answers, reaction temperature is 400 DEG C, and a high temperature upgraded coal part for generation enters coal fired power generation subsystem, by the cold coal device of high temperature, low
The cold coal device cooling of temperature, subsequently into compression-molding apparatus compression forming, produces the upgrading lump coal being readily transported；Remaining high temperature
Upgraded coal enters with other thermal decomposition products in gasification furnace, and gasification reaction, reaction temperature occurs with the high pressure extraction from steam turbine
Degree is 1000 DEG C, generates the gentle slugging of synthesis gas, and gasification slag enters boiler combustion, and synthesis gas enters in methanol-fueled CLC subsystem,
Cooling down by No. 1 air-water heat exchanger, is cooled to 400 DEG C, a part of synthesis gas enters CO converters and adjusts H2/CO proportionality coefficients,
Then it is mixed with remaining synthesis gas, passes sequentially through No. 3 air-water heat exchangers, No. 5 air-water heat exchangers are reduced to 30 DEG C, after cooling
Synthesis gas enters purifier, and foreign gases, the purified synthesis gas such as removing sulphur, carbon dioxide are detached with gas-liquid separation device
The circulating air gone out is mixed into compressor pressurization, is then preheated by gas-to-gas heat exchanger, and methanol conjunction is carried out into methanol-fueled CLC device
At methanol/synthesis oxygen mixture of generation sequentially enters gas-to-gas heat exchanger, gas liquid exchanger, cooler, is cooled to 40
DEG C, gas-liquid mixture after cooling enters gas-liquid separator, and the synthesis gas part isolated is filled as recyclegas with purification
The synthesis gas mixing of outlet is set, remaining enters boiler combustion as unreacting gas；The crude carbinol isolated, is changed by solution-air
Hot device heating generates the higher methanol of purity into methanol purification device；In solar energy upgrading subsystem, a part of solar energy
Conduction oil, which is heated, by groove type heat collector provides heat into pyrolysis oven for pyrolytic process；A part of solar energy passes through heliostat
It projects on reflector, then gathers in gasification furnace, heat is provided for gasification；In coal fired power generation subsystem, gasification
Slag, unreacting gas and predrying coal enter boiler combustion as fuel, heat water supply, the high-temperature steam of generation with come from No. 1 gas-
Water- to-water heat exchanger is mixed into steam turbine, and electrical power generators, the steam discharge of generation is driven to enter condenser and be cooled to condensed water,
A portion enter low temperature cold coal device cooling upgraded coal, a part enter No. 5 air-water heat exchanger cooling syngas, remaining into
Enter low-pressure heater to be heated by the low-pressure pumping steam from steam turbine, then three is mixed into feed pump pressurization, the height of generation
A pressure water part enters high-pressure heater and is heated by the high pressure extraction from steam turbine, and a part enters the cold coal device cooling of high temperature
Upgraded coal, remaining enters No. 4 air-water heat exchangers, the reaction heat of Production of methanol is absorbed, subsequently into No. 3 air-water heat exchangers
Synthesis gas sensible heat is absorbed, 270 DEG C of high-temperature water is generated, a high-temperature water part for generation enters No. 2 air-water heat exchangers and absorbs CO changes
Reaction heat is changed, by No. 1 air-water heat exchanger, high-temperature synthesis gas sensible heat is absorbed, generates 570 DEG C of high-temperature steam, the high temperature of generation
Steam is mixed with the high-temperature steam that boiler generates；Remaining high-temperature water that No. 3 air-water heat exchangers generate and the cold coal device of high temperature, height
The high-temperature water mixing for pressing heater outlet, enters boiler as water supply.
In the solar energy upgrading subsystem, a part of solar energy heats conduction oil by groove type heat collector, into heat
Stove is solved, heat is provided for pyrolytic process；A part of solar energy is projected by heliostat on reflector, and gasification furnace is then gathered
It is interior, provide heat for gasification.
The condensed water that the described condenser cooling generates, a part enter low temperature cold coal device and cool down upgraded coal, a part into
Enter No. 5 air-water heat exchanger cooling syngas, remaining enters low-pressure heater and is heated by the low-pressure pumping steam from steam turbine, so
Latter three is mixed into feed pump pressurization, and a high pressure water part for generation enters high-pressure heater by the high pressure from steam turbine
Steam extraction is heated, and a part enters the cold coal device of high temperature and cools down upgraded coal, remaining enters No. 4 air-water heat exchangers, absorbs methanol-fueled CLC mistake
The reaction heat of journey absorbs synthesis gas sensible heat, the high-temperature water of generation subsequently into No. 3 air-water heat exchangers, and a part enters No. 2 gas-
Water- to-water heat exchanger absorbs CO reaction heats, by No. 1 air-water heat exchanger, absorbs high-temperature synthesis gas sensible heat, generates high-temperature steam,
The high-temperature steam generated with boiler mixes；Remaining high-temperature water that No. 3 air-water heat exchangers generate adds with the cold coal device of high temperature, high pressure
The high-temperature water mixing of hot device outlet, enters boiler as water supply.
The unreacting gas that the gasification slag of the gasification furnace generation, gas-liquid separator separates go out and pre-drying device outlet
A part of predrying coal enters boiler combustion together, heats water supply.
The high temperature upgraded coal that the pyrolysis oven generates, a part enter gasification furnace and carry out gasification reaction, generate synthesis gas；
Remaining enters coal fired power generation subsystem, cools down by the cold coal device of high temperature, low temperature cold coal device, is compressed subsequently into compression-molding apparatus
Molding, produces the upgrading lump coal being readily transported.
The present invention has the following advantages and beneficial effects：The upgradings such as pyrolysis of coal, gasification can be reduced by introducing solar energy
Fossil energy consumption in the process reduces the discharge of pollutant and carbon dioxide；Meanwhile by boiler with Coal fired power station and
Boiler circuit couples, and can increase substantially the comprehensive utilization ratio of coal, realizes that coal grading utilizes, has the characteristics that：
1. the heat for the different silicon carbides that different heat collectors generate is respectively used to pyrolysis and the different journeys of two kinds of gasification of coal
The grading process of degree realizes the cascade utilization of solar energy, reduces the cost of investment of solar energy heat-collection field, while coal may be implemented
Sub-prime utilizes, and reduces the discharge of the fossil energy consumption and carbon dioxide and pollutant of coal grading process.
2. the upgrading of coal and Production of methanol be with coal unit by coupling, using the good fuel tolerance of boiler,
Pyrolysis waste residue and methanol-fueled CLC exhaust gas can be recycled, while can rationally be returned by the boiler circuit with broad continuous temperature section
Receipts process waste heat, realizes the cascade utilization of energy, to improve the comprehensive utilization ratio of energy.
3. being coupled based on the system of coal-based methanol and coal fired power generation, the upgraded coal one that solar energy upgrading unit pyrolysis apparatus generates
For gasifying, a part is also separable to be out processed into upgrading lump coal, increases the input of solar energy for part, produces and is readily transported
High-quality upgraded coal enriches the utilization ways of coal.
Description of the drawings
Fig. 1 is coal-based methanol synthesis and the power generating simultaneously system schematic of integrated solar.
In figure：1- coal breakers, 2- pre-drying devices, 3- pyrolysis ovens, 4- groove type heat collectors, 5- gasification furnaces, 6- heliostats, 7-
Reflector, 8-1 air-water heat exchangers, 9-CO converters, 10-2 air-water heat exchangers, 11-3 air-water heat exchangers, No. 12-5
Air-water heat exchanger, 13- purifiers, 14- compressors, 15- gas-to-gas heat exchangers, 16- methanol-fueled CLC devices, 17-4 air-waters change
Hot device, 18- coolers, 19- gas-liquid separation devices, 20- gas liquid exchangers, 21- methanol purification devices, 22- boilers, 23- vapor wheels
Machine, 24- generators, 25- condensers, 26- low-pressure heaters, 27- feed pumps, 28- high-pressure heaters, the cold coal device of 29- high temperature,
30- low temperature cold coal devices, 31- compression-molding apparatus
Specific implementation mode
The present invention proposes coal-based methanol synthesis and the power generating simultaneously system of integrated solar, is said below in conjunction with the accompanying drawings
It is bright.
Coal-based methanol synthesis and the power generating simultaneously system, including solar energy upgrading subsystem of integrated solar as shown in Figure 1
System, methanol-fueled CLC subsystem, three major parts of coal fired power generation subsystem；Wherein, coal breaker 1 connects pre-drying device 2, predry
Dry device 2 is separately connected boiler 22 and pyrolysis oven 3, and pyrolysis oven 3 is separately connected the heat collector 4, gasification furnace 5 and high temperature of solar energy
Cold coal device 29, the cold coal device of high temperature 29 are connected with low temperature cold coal device 30, compression-molding apparatus 31；The cold coal device of high temperature 29 be divided into it is other with it is high
It presses the input port of heater 28, delivery outlet and is correspondingly connected with, high-pressure heater 28 is connect with the high pressure extraction of steam turbine 23, steaming
The high pressure extraction of steam turbine 23 is connect with gasification furnace 5 in solar energy upgrading subsystem again；Low-pressure heater 26 and steam turbine 23
Low-pressure pumping steam connection, low temperature cold coal device 30 is correspondingly connected with the input port of low-pressure heater 26, delivery outlet respectively；Steam turbine
23 connection generators 24, steam discharge connect condenser 25, and condenser 25 is connect with low-pressure heater 26 again；28 He of high-pressure heater
It is connected by feed pump 27 between low-pressure heater 26；High-pressure heater 28 is connected with boiler 22, steam turbine 23 again；Gasification furnace
8, No. 1 air-water heat exchanger 8 of No. 1 air-water heat exchanger is connect with steam turbine 23 again in 5 output connection methanol-fueled CLC subsystems；1
Number air-water heat exchanger 8 connects into circuit with 9, No. 2 air-water heat exchangers 10 of CO converters；No. 1 air-water heat exchanger 8 also bypasses CO
Converter 9 be directly connected to 11, No. 3 air-water heat exchangers 11 of No. 3 air-water heat exchangers again be separately connected No. 2 air-water heat exchangers 10 and
The delivery outlet of high-pressure heater 28；No. 3 air-water heat exchangers 11 also with No. 5 air-water heat exchangers 12, purifier 13, compressor
14, gas-to-gas heat exchanger 15, methanol-fueled CLC device 16 and No. 4 air-water heat exchangers 17 are connected into circuit；Wherein, No. 5 air-water heat exchangers
12 are separately connected with the input port of low-pressure heater 26 and delivery outlet；No. 4 air-water heat exchangers 17 are also defeated with high-pressure heater 28
Entrance connects；Compressor 14 is also connected into circuit with gas-to-gas heat exchanger 15, gas liquid exchanger 20 and gas-liquid separation device 19；It is cold
But device 18 is separately connected gas liquid exchanger 20 and gas-liquid separation device 19；The output connection methanol purification device of gas liquid exchanger 20
21；
The solar energy is projected by heliostat 6 on reflector 7, is then gathered in gasification furnace 5.
The operation principle of the coal-based methanol synthesis and power generating simultaneously system of the integrated solar, raw coal first pass through coal breaker
1 pulverization process is dried into pre-drying device 2, and a part enters boiler 22 and burns, remaining enters pyrolysis oven 3 and Low Temperature Thermal occurs
Solution reaction, reaction temperature are 400 DEG C, and a high temperature upgraded coal part for generation enters coal fired power generation subsystem, by the cold coal of high temperature
Device 29, low temperature cold coal device 30 cool down, and subsequently into 31 compression forming of compression-molding apparatus, produce the upgrading block being readily transported
Coal；Remaining high temperature upgraded coal enters with other thermal decomposition products in gasification furnace 5, occurs with the high pressure extraction from steam turbine 23
Gasification reaction, 1000 DEG C of reaction temperature generate the gentle slugging of synthesis gas, and gasification slag enters the burning of boiler 22, and synthesis gas enters first
Alcohol synthesizes in subsystem, is cooled to 400 DEG C by No. 1 air-water vapour heat exchanger 8, a part of synthesis gas enters the adjusting of CO converters 9
Then H2/CO proportionality coefficients are mixed with remaining synthesis gas, pass sequentially through 11, No. 5 air-water heat exchangers 12 of No. 3 air-water heat exchangers
Cooling, is reduced to 30 DEG C, and the synthesis gas after cooling enters purifier 13, the foreign gases such as removing sulphur, carbon dioxide, after purification
The circulating air isolated of synthesis gas and gas-liquid separation device 19 be mixed into the pressurization of compressor 14, then exchanged heat by gas-gas
Device 15 preheats, and carries out methanol-fueled CLC into methanol-fueled CLC device 16, methanol/synthesis oxygen mixture of generation sequentially enters gas-gas
Heat exchanger 15, gas liquid exchanger 20, cooler 18 are cooled to 40 DEG C, and gas-liquid mixture after cooling enters gas-liquid separator
19, the synthesis gas part isolated is as recyclegas, and the synthesis gas exported with purifier 13 mixes, remaining conduct is not anti-
Gas is answered to enter the burning of boiler 22；The crude carbinol isolated is heated by gas liquid exchanger 20, into methanol purification device 21, production
The higher methanol of raw purity；In solar energy upgrading subsystem, a part of solar energy heats conduction oil by groove type heat collector 4,
Into pyrolysis oven 3, heat is provided for pyrolytic process；A part of solar energy is projected by heliostat 6 on reflector 7, is then gathered
Collect in gasification furnace 5, heat is provided for gasification；In coal fired power generation subsystem, gasification slag, unreacting gas and predrying coal
Enter boiler 22 as fuel to burn, heats water supply, the high-temperature steam of generation is mixed with from No. 1 air-water vapour heat exchanger 8
Into steam turbine 23, driving generator 24 generates electricity, and the steam discharge of generation enters condenser 25 and is cooled to condensed water, a portion
Upgraded coal is cooled down into low temperature cold coal device 30, a part enters No. 5 12 cooling syngas of air-water heat exchanger, remaining enters low pressure
Heater 26 is heated by the low-pressure pumping steam from steam turbine 23, and then three is mixed into the pressurization of feed pump 27, the height of generation
A pressure water part enters high-pressure heater 28 and is heated by the high pressure extraction from steam turbine 23, and a part enters the cold coal device of high temperature
29 cooling upgraded coals, remaining enters No. 4 air-water heat exchangers 17, the reaction heat of Production of methanol is absorbed, subsequently into No. 3 gas-
Water- to-water heat exchanger 11 absorbs synthesis gas sensible heat, generates 270 DEG C of high-temperature water, and a part enters No. 2 absorption of air-water heat exchangers 10 CO and becomes
Reaction heat is changed, by No. 1 air-water heat exchanger, high-temperature synthesis gas sensible heat is absorbed, generates 570 DEG C of high-temperature steam, high temperature is generated and steams
Vapour is mixed with the high-temperature steam that boiler 22 generates；Remaining high-temperature water that No. 3 air-water heat exchangers 11 generate and the cold coal device of high temperature
29, the high-temperature water mixing that high-pressure heater 28 exports, enters boiler 22 as water supply.
It is described in solar energy upgrading subsystem, a part of solar energy passes through groove type heat collector 4 and heats conduction oil, enters
Pyrolysis oven 3 provides heat for pyrolytic process；A part of solar energy is projected by heliostat 6 on reflector 7, is then gathered
In gasification furnace 5, heat is provided for gasification.
The unreacting gas and pre-drying device 2 that gasification slag, the gas-liquid separator 19 of the generation of gasification furnace 5 are isolated go out
A part of predrying coal of mouth enters boiler 22 and burns together, heats water supply.
The high temperature upgraded coal that the pyrolysis oven 3 generates, a part enter gasification furnace 5 and carry out gasification reaction, generate synthesis
Gas；Remaining enters coal fired power generation subsystem, is cooled down by the cold coal device 29 of high temperature, low temperature cold coal device 30, subsequently into compression forming
The upgrading lump coal being readily transported is produced in 31 compression forming of device.
Claims (6)
1. coal-based methanol synthesis and the power generating simultaneously system, including solar energy upgrading subsystem of a kind of integrated solar, methanol close
At subsystem, three major parts of coal fired power generation subsystem；It is characterized in that,
Coal breaker (1) connects pre-drying device (2), and pre-drying device (2) is separately connected boiler (22) and pyrolysis oven (3), is pyrolyzed
Stove (3) is separately connected the cold coal device (29) of heat collector (4), gasification furnace (5) and high temperature of solar energy, the cold coal device (29) of high temperature and low temperature
Cold coal device (30), compression-molding apparatus (31) series connection；The cold coal device (29) of high temperature be divided into not with the input port of high-pressure heater (28),
Delivery outlet be correspondingly connected with, high-pressure heater (28) is connect with the high pressure extraction of steam turbine (23), the height of steam turbine (23)
Pressure steam extraction is connect with gasification furnace (5) in solar energy upgrading subsystem again；The low pressure of low-pressure heater (26) and steam turbine (23)
Steam extraction connects, and low temperature cold coal device (30) is correspondingly connected with the input port of low-pressure heater (26), delivery outlet respectively；Steam turbine
(23) connection generator (24), steam discharge connect condenser (25), and condenser (25) is connect with low-pressure heater (26) again；High pressure
It is connected by feed pump (27) between heater (28) and low-pressure heater (26)；High-pressure heater (28) again with boiler (22),
Steam turbine (23) is connected；No. 1 air-water heat exchanger (8) in gasification furnace (5) output connection methanol-fueled CLC subsystem, No. 1 air-water
It heat exchanger (8) and is connect with steam turbine (23)；No. 1 air-water heat exchanger (8) and CO converters (9), No. 2 air-water heat exchangers
(10) circuit is connected into；No. 1 air-water heat exchanger (8) is also directly connected to No. 3 air-water heat exchangers (11) around CO converters (9), and 3
Number air-water heat exchanger (11) and the delivery outlet for being separately connected No. 2 air-water heat exchangers (10) and high-pressure heater (28)；No. 3 gas-
Water- to-water heat exchanger (11) also with No. 5 air-water heat exchangers (12), purifier (13), compressor (14), gas-to-gas heat exchanger (15), first
Alcohol synthesizer (16) and No. 4 air-water heat exchangers (17) are connected into circuit；Wherein, No. 5 air-water heat exchangers (12) and low-pressure heating
The input port of device (26) and delivery outlet are separately connected；No. 4 air-water heat exchangers (17) also connect with the input port of high-pressure heater (28)
It connects；Compressor (14) is also connected into circuit with gas-to-gas heat exchanger (15), gas liquid exchanger (20) and gas-liquid separation device (19)；
Cooler (18) is separately connected gas liquid exchanger (20) and gas-liquid separation device (19)；Gas liquid exchanger (20) output connection first
Alcohol purifier (21).
2. the coal-based methanol synthesis of integrated solar and power generating simultaneously system according to claim 1, which is characterized in that described
Solar energy is projected by heliostat (6) on reflector (7), is then gathered in gasification furnace (5).
3. the integrated coproduction principle of the coal-based methanol synthesis and power generating simultaneously system of integrated solar described in a kind of claim 1,
It is characterized in that, raw coal first passes through coal breaker (1) pulverization process, dry into pre-drying device (2), a part enters boiler
(22) it burns, remaining enters pyrolysis oven (3) and low temperature pyrogenation reaction occurs, and a high temperature upgraded coal part for generation enters coal fired power generation
Subsystem, it is cooling by the cold coal device (29) of high temperature, low temperature cold coal device (30), it is compressed into subsequently into compression-molding apparatus (31)
Type produces the upgrading lump coal being readily transported；Remaining high temperature upgraded coal enters with other thermal decomposition products in gasification furnace (5), with
Gasification reaction occurs for the high pressure extraction from steam turbine (23), generates the gentle slugging of synthesis gas, and gasification slag enters boiler (22)
Burning, synthesis gas enter in methanol-fueled CLC subsystem, cool down by No. 1 air-water heat exchanger (8), and a part of synthesis gas enters CO
Converter (9) adjusts H2/CO proportionality coefficients, is then mixed with remaining synthesis gas, passes sequentially through No. 3 air-water heat exchangers (11), 5
Number air-water heat exchanger (12), the synthesis gas after cooling enter purifier (13), the foreign gases such as removing sulphur, carbon dioxide, only
Synthesis gas after change is mixed into compressor (14) pressurization with the circulating air that gas-liquid separation device (19) is isolated, and then passes through
Gas-to-gas heat exchanger (15) preheat, into methanol-fueled CLC device (16) carry out methanol-fueled CLC, methanol/synthesis oxygen mixture of generation,
Gas-to-gas heat exchanger (15), gas liquid exchanger (20), cooler (18) are sequentially entered, gas-liquid mixture after cooling enters gas-liquid
Separator (19), the synthesis gas part isolated are mixed as recyclegas with the synthesis gas of purifier (13) outlet,
It is remaining that unreacting gas is used as to enter boiler (22) burning；The crude carbinol isolated is heated by gas liquid exchanger (20), is entered
Methanol purification device (21) generates the higher methanol of purity；In solar energy upgrading subsystem, a part of solar energy passes through slot type collection
Hot device (4) heating conduction oil provides heat into pyrolysis oven (3) for pyrolytic process；A part of solar energy passes through heliostat (6)
It projects on reflector (7), then gathers in gasification furnace (5), heat is provided for gasification；In coal fired power generation subsystem
In, gasification slag, unreacting gas and predrying coal enter boiler (22) burning as fuel, heat water supply, the high-temperature steam of generation
It is mixed into steam turbine (23) with from No. 1 air-water heat exchanger (8), driving generator (24) generates electricity, the steam discharge of generation
It is cooled to condensed water into condenser (25), a portion enters low temperature cold coal device (30) and cools down upgraded coal, part condensation
Moisture stream A enters No. 5 air-water heat exchanger (12) cooling syngas and forms condensed water in high temperature shunting C, remaining enters low-pressure heater
(26) it is heated by the low-pressure pumping steam from steam turbine (23), then three is mixed into feed pump (27) pressurization, the height of generation
A pressure water part enters high-pressure heater (28) and is heated by the high pressure extraction from steam turbine (23), and it is cold that a part enters high temperature
Coal device (29) cools down upgraded coal, remaining low temperature boosts moisture stream C into No. 4 air-water heat exchangers (17), absorbs methanol-fueled CLC mistake
The reaction heat of journey absorbs synthesis gas sensible heat, the high-temperature water of generation subsequently into No. 3 air-water heat exchangers (11), and a part enters 2
Number air-water heat exchanger (10) absorbs CO reaction heats, passes through No. 1 air-water heat exchanger, absorbs high-temperature synthesis gas sensible heat, generates
High-temperature steam, the high-temperature steam generated with boiler (22) mix；Remaining high temperature moisture that No. 3 air-water heat exchangers (11) generate
Stream D is mixed with the high-temperature water that the cold coal device (29) of high temperature, high-pressure heater (28) export, and enters boiler (22) as water supply.
4. the coal-based methanol synthesis and the integrated coproduction of power generating simultaneously system of integrated solar according to claim 3 are former
Reason, which is characterized in that described in solar energy upgrading subsystem, a part of solar energy is led by groove type heat collector (4) heating
Deep fat provides heat into pyrolysis oven (3) for pyrolytic process；A part of solar energy projects reflector by heliostat (6)
(7) it on, then gathers in gasification furnace (5), heat is provided for gasification.
5. the coal-based methanol synthesis and the integrated coproduction of power generating simultaneously system of integrated solar according to claim 3 are former
Reason, which is characterized in that the unreacting gas that gasification slag that the gasification furnace (5) generates, gas-liquid separator (19) are isolated with it is pre-
A part of predrying coal of drying device (2) outlet enters boiler (22) and burns together, heats water supply.
6. coal-based methanol synthesis and the power generating simultaneously system of integrated solar according to claim 3, which is characterized in that institute
The high temperature upgraded coal that the pyrolysis oven (3) stated generates, a part enter gasification furnace (5) and carry out gasification reaction, generate synthesis gas；Remaining
It is cooling by the cold coal device (29) of high temperature, low temperature cold coal device (30) into coal fired power generation subsystem, subsequently into compression-molding apparatus
(31) the upgrading lump coal being readily transported is produced in compression forming.
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| 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 |
| CN118391105A (en) * | 2024-01-19 | 2024-07-26 | 淮阴工学院 | Coupled oxygen-enriched combustion power generation and CO2Novel electro-chemical co-production system for catalytic hydrogenation process |
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