CN106753579A - A kind of solid thermal carriers coal gasification electrical thermal storage system and method - Google Patents
A kind of solid thermal carriers coal gasification electrical thermal storage system and method Download PDFInfo
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- CN106753579A CN106753579A CN201611216387.XA CN201611216387A CN106753579A CN 106753579 A CN106753579 A CN 106753579A CN 201611216387 A CN201611216387 A CN 201611216387A CN 106753579 A CN106753579 A CN 106753579A
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
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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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- 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
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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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
- C10J2300/1246—Heating the gasifier by external or indirect heating
-
- 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
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
The present invention provides a kind of solid thermal carriers coal gasification electrical thermal storage system and method, the system includes electric supply installation, fluid bed powder coal gasification stove, cyclone dust collectors, ash discharge sorter and fine ash collecting chamber, the electric supply installation connects the fluid bed powder coal gasification stove, the fluid bed powder coal gasification stove includes body of heater, the furnace interior is equipped with metal thermal carrier, and outside is provided with heating；The body of heater gas vent connects the cyclone dust collectors, the feed opening of the cyclone dust collectors connects the feeding mouth of the ash discharge sorter, the cinder outlet of the ash discharge sorter is connected with the returning charge mouth, and the fine ash outlet of the ash discharge sorter is connected with the fine ash collecting chamber.Methods described is to use said system, and first heated fluidized bed coal gasification in-furnace temperature reaches 800 ~ 1300 DEG C；Carry coal dust and calcium carbonate mixed-powder secretly with preheating gasifying agent again carries out coal gasification reaction in coal gasifier；Finally coal gas of high temperature is used to prepare town gas or chemical products.
Description
Technical field
The present invention relates to the comprehensive utilization of power network electric energy, and in particular to a kind of solid thermal carriers coal gasification electrical thermal storage system
And method.
Background technology
At present, thermal power generation is the main generation mode of China, and will not be changed within following a period of time.But it is near
Nian Lai, with our people's growth in the living standard and the adjustment of the industrial structure, the power structure of the whole society there occurs very big
Change, causes the peak-valley difference of each bulk power grid to increase increasingly.And the regulating power of power network itself is weaker, therefore in generating set installation
When capacity is difficult to the peak of power consumption for meeting network load, it has to take the mode of power cuts to limit consumption to ensure the stabilization of generating set
Operation, and in low power consumption, then need to close down many generating sets.For thermal power generation, the frequent of generating set is opened
Stopping not only make energy consumption increases, while can also shorten the service life of generating set, makes the decrease in power generation efficiency of power equipment, makes
Economic benefit reduction.The thermal power generating equipment annual occupancy that more than 300,000 kilowatts of China in 2014 is only 45%, and this is to energy crisis
Increasingly serious today is a kind of great energy waste and resources loss.Therefore, take suitable peak load regulation network technology for
The peaking problem being on the rise at present has great importance.
According to the difference of peak regulation method, current peak regulation technique can be divided into two kinds of unit operation peak regulation and storage peak regulation.
Unit operation peak regulation technique mainly has the idle operation of few vapour, underrun and two-shift operation.Wherein lack vapour without
The load of unit is reduced to zero when work(operates in low power consumption, unit is in the idle state of rated speed rotation；It is low negative
Lotus operation meets the peak regulation demand of power network by changing the load of unit；Two-shift operation is according to the daily load curve of power network point
With rule, daytime, generating set normally ran, and night then shuts down 6~8h in low power consumption.These three unit operation peak regulation skills
During though art is widely used in current each Large-scale fire-electricity unit because of simple to operate, technically reliable and peak regulation effect is significant, all deposit
In respective defect.Few vapour is idle and low load operating mode operation energy consumption is high, energy waste is serious.Two-shift operation mode
Requirement to the operating parameter of equipment is extremely strict, and security is relatively low.
The energy that unnecessary electric energy when storage peak regulation is by by low power consumption changes into other forms is stored or directly
Utilize, the energy of storage is changed into electric energy for users to use again in peak of power consumption, make unnecessary electric energy during low power consumption, turn
It is changed into high value electric energy during peak of power consumption, so as to reach the purpose of peak-clipping and valley-filling.According to the difference of way of energy storage, storage peak regulation
Technology can be divided into mechanical energy accumulator, heat energy accumulation of energy, electrochemistry accumulation of energy and chemical energy accumulation of energy.
Unnecessary electric energy when mechanical energy accumulator is by low power consumption changes into mechanical energy and is stored, in peak of power consumption by machine
Tool can change into electric energy, mainly include water-storage and Caes.It is many when wherein water-storage is using low power consumption
In remaining electrical energy drive pumping for water pump to cistern, and discharged water by cistern in peak of power consumption and drive the hydraulic turbine to generate electricity.The storage
Energy technology has the advantages that system reliability, accumulation of energy capacity greatly and long service life, but because being limited larger by season and region, nothing
Method large-scale promotion.Unnecessary electric energy when Caes are using low power consumption is compressed to air, then high in electricity consumption
Compressed air-driven steam turbine power generation is discharged during peak.The operating cost of the technology is low, but relatively low with energy conversion rate, flexibility
The shortcomings of poor with economy.
Unnecessary electric energy when heat energy accumulation of energy is by low power consumption changes into heat energy and is stored or directly utilized, in peak of power consumption
When convert heat into electric energy again, mainly include hot water heat storage boiler, gas cogeneration and energy accumulation air conditioner technology.Heat energy accumulation of energy
There is technology maturation, economic and environment-friendly but larger by season and territory restriction, therefore cannot large-scale use.
Electrochemistry accumulation of energy using battery or fuel cell by low power consumption when unnecessary electrical power storage get up, it is high in electricity consumption
Electric energy is discharged again during peak, the energy conversion rate of the way of energy storage is high, but storage volume and generated output are its large-scale uses
With the limiting factor of development.
Unnecessary electric energy when chemical energy accumulation of energy is using low power consumption carries out the preparation of chemical products.With other way of energy storage phases
Than chemical energy accumulation of energy can to the full extent improve the utilization rate of grid equipment, reduce peak-valley difference, it is ensured that efficient energy conversion
Rate.In current chemical energy energy accumulating technique, water electrolysis hydrogen production technology has environmental protection, and free of contamination advantage can obtain high added value
Hydrogen, but the technological investment high cost is less economical；Aluminum electrolysis technology environmental pollution is serious, and in aluminium production capacity surplus
Today, peak load regulation network is carried out without advantage by aluminum electrolysis technology.
Accordingly, it would be desirable to one kind neither receive season and territory restriction, and can produce preferable economic benefit it is efficient, safe,
The electrical thermal storage peak regulation technique of environmental protection.
The content of the invention
For the problem that prior art is present, the present invention provides a kind of solid thermal carriers coal gasification electrical thermal storage system and side
With solid thermal carriers Coal Gasification Technology be coupled electric-heating technology by method, the system and method, many during using low power consumption
Remaining electric energy, the metal thermal carrier in heated fluidized bed powder coal gasification furnace, for coal gasification course provides enough heats, is realized by electricity
The Efficient Conversion of chemical energy can be arrived.The technical solution adopted by the present invention is：
A kind of solid thermal carriers coal gasification electrical thermal storage system, including electric supply installation, fluid bed powder coal gasification stove, cyclone dust removal
Device, ash discharge sorter and fine ash collecting chamber, the electric supply installation connect the fluid bed powder coal gasification stove, the fluid bed powder coal
Gasification furnace includes body of heater, and the furnace interior is equipped with metal thermal carrier, and outside is provided with heating；The body of heater is provided with coal dust and enters
Mouth, lime stone entrance, gasification agent inlet, returning charge mouth and gas vent；The gas vent connects the cyclone dust collectors, described
The feed opening of cyclone dust collectors connects the feeding mouth of the ash discharge sorter, and the cinder outlet of the ash discharge sorter is returned with described
Material mouth is connected, and the fine ash outlet of the ash discharge sorter is connected with the fine ash collecting chamber；The ash discharge sorter is provided with cloth wind
Plate, for filtering out fine ash particle；The electric supply installation is connected with the heating and power network respectively.
Further, the system also includes flue gas heat-exchange unit, waste heat boiler and deduster, the flue gas heat-exchange unit difference
The cyclone dust collectors and the waste heat boiler are connected, the waste heat boiler connects the deduster.
Further, heat exchanger, the outlet connection ash silo of the fine ash collecting chamber are provided with the fine ash collecting chamber.
Further, the heating is induction coil or resistance-type calandria, when heating is induction coil,
The metal thermal carrier is the magnetic metal bead containing alkaline element of 0.5~4mm of diameter；When heating is resistance
During formula calandria, the metal thermal carrier is the prill containing alkaline element of 0.5~4mm of diameter.
Further, the system can also include town gas processing unit, and the town gas processing unit includes
Gas composition adjusting means and methanation device, the gas composition adjusting means connect the deduster, for passing through
CO and H in water-gas shift reaction regulation coal gas of high temperature2Mol ratio be 1:3, the methanation device is used for will be from the synthesis
Gas component adjusting device gaseous mixture out is completely converted into town gas by methanation reaction.
A kind of solid thermal carriers coal gasification electrical thermal storage method, is to use said system, is comprised the following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load, and determine the peak load regulation network system
Quantity；If using 1 set of peak load regulation network system, being directly entered step（2）；If will be many using many set peak load regulation network systems
Step is entered back into after the system parallel connection of set peak load regulation network（2）；
（2）Electric energy introducing fluid bed powder coal gasification stove internal heating metal heat carrier to temperature is reached 800 ~ 1300 DEG C and keeps permanent
It is fixed；
（3）Coal dust and lime stone are added to fluid bed powder coal gasification stove by coal powder entrance and lime stone entrance respectively, will
Being preheated to 200 ~ 400 DEG C of gasifying agent and being passed through by gasification agent inlet carries out coal gasification reaction to fluid bed powder coal gasification stove, instead
During answering, the gaseous mixture of entrained solids reaction mass is constantly isolated slightly in the presence of cyclone dust collectors and ash discharge sorter
Coal gas of high temperature is obtained after ash and fine ash, wherein cinder is back in fluid bed powder coal gasification stove and proceeds coal gasification reaction, carefully
Ash is by entering ash silo after fine ash collecting chamber；
（4）Coal gas of high temperature is used to prepare town gas or chemical products.
In the above method, the gasifying agent is CO2, vapor, richness CO2One or more mixing in flue gas, the gasification
Fluidising air velocity of the agent in fluid bed powder coal gasification stove is 0.5~8m/s.
In the above method, the mol ratio of the O in C and gasifying agent in the gasifying agent, lime stone and coal dust is 1:0.9~
1:1.5, CaCO3It is 1 with the mol ratio of the S in coal dust:1~2.5:1.
In the above method, described to be used to coal gas of high temperature prepare town gas, detailed process is：Coal gas of high temperature is passed through successively
Enter gas composition adjusting means after heat exchanger heat exchange, deduster dedusting, be 250 ~ 300 DEG C of vapor reaction generations with temperature
H2, and control the CO and H for being generated in coal gas of high temperature2Mol ratio be 1:3；Gaseous mixture is sent into methanation device in 250 ~
300 DEG C there is methanation reaction and obtain town gas.
In the above method, described that coal gas of high temperature exchanges heat through heat exchanger successively, heat transferring medium is water in the heat exchanger, is changed
The vapor obtained after heat is used as gasifying agent.
In the above method, the chemical products include artificial oil, methyl alcohol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon (LC) alkene
The product with CO as primary raw material such as hydrocarbon.
Reaction equation of the present invention is：
CaCO3=CaO+CO2(g) ∆H1=+110.39kJ/mol (1)
CaO+S+C=CaS+CO(g) ∆H2=-26.85kJ/mol (2)
C+CO2(g)=2CO(g) ∆H3=+161.81kJ/mol (3)
C+H2O(g)=CO(g)+H2(g) ∆H4=+135.0kJ/mol (4)
CO(g)+H2O(g)=CO2(g)+H2(g) ∆H5=+39.22kJ/mol (5)
CO(g)+3H2=CH4(g)+ H2O(g) ∆H6=-216.45kJ/mol (6)
CO2(g)+4H2(g)=CH4(g)+2H2O(g) ∆H7=-202.51kJ/mol (7)
∆H1~∆H7Represent the reaction heat of reaction (1) ~ (7).
Below by taking 50MW paddy phase Peak Loads as an example, according to the conservation of energy and the conservation of mass to the material needed for the system with
The product of generation is calculated, and method is as follows：
The coal dust of selection is two kinds of colm and fat coal, and the Industrial Analysis and elementary analysis of two kinds of coals are as shown in table 1：
The Industrial Analysis of the colm of table 1 and fat coal and elementary analysis result
Design conditions：By the way of electromagnetic induction heating, electric input power Pa=50MW, electrical efficiency ηe=0.9, thermal efficiency ηt
=0.7, other heat loss of system are 8%.If coal feeding amount is m, kg/s, gasifying agent is CO2。
When using colm, it is into the heat in stove：
Electrical heat input Q1, kJ/s：Q1=Paheht=50MW×0.9×0.7=31.5×103；
The physical thermal Q that coal dust is brought into2, kJ/s：Q2=CcoalmTcoal=1.21×20×m=24.2m；
Wherein, CcoalIt is the specific heat of coal dust, KJ/ (kg DEG C)；TcoalIt is coal dust temperature, DEG C；The physical thermal Q that gasifying agent is brought into3,
kJ/s：
Q3=CgasmgasTgas=0.996×200×(wC%/12-wS%/16) ×44×m=387.28m；
Wherein, CgasIt is the specific heat of carbon dioxide, KJ/ (kg DEG C)；mgasIt is carbon dioxide quality, kg/s；TgasIt is carbon dioxide
Temperature, DEG C；wCIt is the phosphorus content of coal, %；
The physical thermal Q that lime stone is brought into4, kJ/s：
Q4=CCaCO3mCaCO3TCaCO3=0.84×20×(wS%/32) ×100×m=0.65625m；
Wherein, CCaCO3It is the specific heat of calcium carbonate, KJ/ (kg DEG C)；mCaCO3It is calcium carbonate quality, kg/s；TCaCO3It is calcium carbonate temperature
Degree, DEG C；
The hot Q of generation of CaS5, kJ/s：Q5=mCaS/MCaS×∆H2=wS%×m/0.03×26.85 =10.49m；
Wherein, mCaSIt is the quality of CaS, kg/s；MCaSIt is the molal weight of CaS, kg/mol；wSIt is the sulfur content of coal, %；
The heat of consumption is in stove：
The physical thermal Q that lime-ash is taken out of6, kJ/s：Q6=CashmashTash=0.918×1000×mash=298.425m；
Wherein, CslagIt is the specific heat of slag, KJ/ (kg DEG C)；mashIt is slag quality, kg/s；TIronIt is molten iron temperature, DEG C；
The physical thermal Q that synthesis gas is taken out of7, kJ/s：
Q7=CsmsTs=1.13×1000×(wC%/12-wS%/32) ×56×m=2820.77m；
Wherein, CsIt is the specific heat of synthesis gas, KJ/ (kg DEG C)；msIt is synthesis gas quality, kg/s；TsIt is synthesis gas temperature, DEG C；
The heat Q of coal gasification reaction consumption8, kJ/s：
Q8=mC/MC×∆H3=(wc%/0.012 - ws%/0.032kg/mol ) ×m×161.81 =7212.40m；
Wherein, mcRepresent the phosphorus content of coal dust, kg/s；McRepresent the molal weight of carbon, kg/mol；
The heat Q of decomposition of limestone consumption9, kJ/s：
Q9=mCaCO3/MCaCO3×∆H1=wS%/0.032×m×110.98=43.12m；
Wherein, mCaCO3Represent the quality of calcium carbonate, kg/s；M CaCO3Represent the molal weight of calcium carbonate, kg/mol；
Other radiation losses Q10, kJ/s：Q10=8%×Q1=2.52MW=2.52×103；
According to the conservation of energy, Q1+Q2+Q3+Q4+Q5=Q6+Q7+Q8+Q9+ Q10Coal feeding amount m=2.91kg/s=10.476 t/h can be obtained.
Computational methods are identical with colm when using fat coal, coal feeding amount m=1.86kg/s=when can use fat coal
6.696 t/h。
Then with CO2During for gasifying agent, MaterialBalance Computation table is as shown in table 2：
Table 2 is with CO2It is the MaterialBalance Computation table of gasifying agent
Similarly can MaterialBalance Computation table of proper use vapor when cooking gasifying agent, as shown in table 3：
Table 3 is with H2O is the MaterialBalance Computation table of gasifying agent
Situation when being used to produce town gas to synthesis gas below carries out Material calculation：
Design conditions：Colm uses CO2The synthesis gas produced during as gasifying agent；
The quality of CO is 26.033 t/h in synthesis gas, main in synthesis gas converting means to react 5 by CO and H2Rub
You are adjusted to 1 by ratio:3.
CO+H2O=CO2+H2 ∆H5=+39.22kJ/mol (5)
Thus, it is supposed that the amount for being passed through vapor is X t/h, then according to CO and H2Required mol ratio, can obtain：
Wherein, ncoRepresent the amount of the material that CO is produced in the unit interval, mol/s；nH2Represent and H is produced in the unit interval2Material
Amount, mol/s；mCORepresent the quality that CO is produced in the unit interval, kg/s；mH2Represent and H is produced in the unit interval2Quality, kg/
S, ncoal-H2Represent pyrolysis of coal, mol/s in the unit interval.It can thus be concluded that in synthesis gas converting means vapor demand X=
11.593 t/h, so by m in the synthesis gas after conversionCO=8.134 t/h, mH2=1.746 t/h。
It can thus be concluded that the amount of generation methane is 4.648 t/h.
The demand of vapor in synthesis gas converting means and the final amount for producing methane can be similarly obtained in the case of remaining, such as
Shown in table 4：
The mass balance table of the methane of table 4 generation
When by the way of resistance heating, in addition to electrical efficiency and the thermal efficiency are different with electromagnetic induction heating, remaining calculates step
Rapid all same.
Beneficial effects of the present invention are：
1. the present invention can to low power consumption when unnecessary electric energy carry out effective utilization, reduce the waste of the energy, reach peak regulation
Purpose；
2. the electric heater unit heat time of the invention is short, and response is rapid, can meet the instant mode of operation stopped；
3. metal thermal carrier of the invention can promote the carrying out of coal gasification reaction, improve reaction rate, improve gas generating component；
4. the present invention can carry out high-efficiency cleaning utilization to the strong adaptability of coal to the coal resources of China's abundant, while producing
Synthesis gas can both be passed through methanation device and used for resident producing town gas, carry out chemical industry product but also as industrial chemicals
The synthesis of product, with added value higher；
5. with solid thermal carriers Coal Gasification Technology be coupled electric-heating technology by the present invention, solves current electrical thermal storage technology
The problem limited by season and region factor, improves the utilization rate of grid equipment to the full extent, it is ensured that the energy it is efficient
Conversion.
Brief description of the drawings
Fig. 1 is the structural representation of induction type solid thermal carriers coal gasification electrical thermal storage system of the invention.
Fig. 2 is the structural representation of resistance-type solid thermal carriers coal gasification electrical thermal storage system of the invention.
In Fig. 1 ~ 2,1 is electric supply installation, 2 is coal bunker, 3 is Limestone silo, 4 is batcher, 5 is electromagnetic induction coil, 5-1
For resistance-type calandria, 6 be metal thermal carrier, 7 be fluid bed powder coal gasification stove, 8 be cyclone dust collectors, 9 be ash discharge sorter,
10 is fine ash collecting chamber, 11 is ash silo, 12 is flue gas heat-exchange unit, 13 is waste heat boiler, 14 is that deduster one, 7-1 is lime stone
Entrance, 7-2 are coal powder entrance, 7-3 is gasification agent inlet, 7-4 is returning charge mouth, 7-5 is gas vent, 9-1 is ash discharge sorter
Feeding mouth, 9-2 be air distribution plate, 9-3 be cinder outlet, 9-4 be fine ash outlet, 15 be gas composition adjusting means, 16 be first
Alkylation unit.
Specific embodiment
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings, described is to solution of the invention
Release rather than restriction.
Fig. 1 provides the structural representation of induction type solid thermal carriers coal gasification electrical thermal storage system of the invention, described
System includes electric supply installation 1, fluid bed powder coal gasification stove 7, cyclone dust collectors 8, ash discharge sorter 9, fine ash collecting chamber 10, flue gas
Heat exchanger 12, waste heat boiler 13 and deduster 1, the electric supply installation 1 connect the fluid bed powder coal gasification stove 7, the stream
Changing bed powder coal gasification furnace includes body of heater, and the furnace interior is equipped with metal thermal carrier 6, and outside is provided with heating 5；The body of heater
It is provided with coal powder entrance 7-2, lime stone entrance 7-1, gasification agent inlet 7-3, returning charge mouth 7-4 and gas vent 7-5；The gas goes out
Mouth 7-5 connects the cyclone dust collectors 8, and the feed opening of the cyclone dust collectors connects the feeding mouth 9-1 of the ash discharge sorter,
The cinder outlet 9-3 of the ash discharge sorter be connected with the returning charge mouth 7-4, the fine ash of ash discharge sorter outlet 9-4 and
The fine ash collecting chamber 10 is connected；The ash discharge sorter is provided with air distribution plate 9-2, for filtering out fine ash particle；The power supply
Device 1 is connected with the heating 5 and power network respectively；The flue gas heat-exchange unit 12 connects the He of the cyclone dust collectors 8 respectively
The waste heat boiler 13, the waste heat boiler 13 connects the deduster 1.
Heat exchanger, the outlet connection ash silo 11 of the fine ash collecting chamber are provided with the fine ash collecting chamber 10.
The heating is electromagnetic induction coil, and the metal thermal carrier contains alkalinous metal for 0.5~4mm's of diameter
The magnetic metal bead of element.
Further, the system can also include town gas processing unit, and the town gas processing unit includes
Gas composition adjusting means 15 and methanation device 16, the gas composition adjusting means connect the deduster one, use
The CO and H in synthesis gas is adjusted by water-gas shift reaction2Mol ratio be 1:3, the methanation device is used for will be from described
Gas composition adjusting means gaseous mixture out is completely converted into town gas by methanation reaction.
Fig. 2 provides the structural representation of resistance-type solid thermal carriers coal gasification electrical thermal storage system of the invention, with Fig. 1
The distinctive points of system be：Heating is resistance-type calandria, and metal thermal carrier contains alkalescence for 0.5~4mm's of diameter
The prill of metallic element.
Embodiment 1
A kind of solid thermal carriers coal gasification electrical thermal storage method, is that, using electrical thermal storage system as shown in Figure 1, the system is adopted
Fluid bed powder coal gasification furnace main body is cylinder, and sectional area is 4m2, a height of 9m；Heating is electromagnetic induction coil；Gold
Category heat carrier is the small ball of a diameter of 1.2mm, is filled in fluid bed powder coal gasification stove, and packed height is 6m, the accumulation of energy
Method is comprised the following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load；
（2）Electric energy introducing fluid bed powder coal gasification stove internal heating metal heat carrier to temperature is reached 1000 DEG C and keeps constant；
（3）Coal dust and lime stone are added to fluid bed powder coal gasification stove by coal powder entrance and lime stone entrance respectively, will
It is preheated to 200 DEG C of gasifying agent CO2Being passed through by gasification agent inlet carries out coal gasification reaction to fluid bed powder coal gasification stove, wherein
CO2Fluidising air velocity in fluid bed powder coal gasification stove is 2.5m/s, CO2, O in C and gasifying agent in lime stone and coal dust
Mol ratio is 1:1, CaCO3It is 1 with the mol ratio of the S in coal dust:1；In course of reaction, the gaseous mixture of entrained solids reaction mass
Coal gas of high temperature is obtained after constantly isolating cinder and fine ash in the presence of cyclone dust collectors and ash discharge sorter, wherein cinder is returned
It is back to and proceeds coal gasification reaction in fluid bed powder coal gasification stove, fine ash of the diameter less than 1mm is carried out in fine ash collecting chamber
Waste heat recovery enters ash silo after being cooled to less than 150 DEG C；CO and H in coal gas of high temperature2Yield be 20826.4m3/ h, 509.2m3/
h。
（4）Coal gas of high temperature is carried out into waste heat recovery by flue gas heat-exchange unit, in heat exchanger, coal gas of high temperature is changed with water
Heat, gas temperature can be down to 250 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
Clean gas after dedusting have two kinds of approach：One side clean gas can carry out chemical industry product directly as industrial chemicals
Product synthesize；Another aspect clean gas enter gas composition adjusting means, with vapor reaction generation H2, and control CO and institute
The H of generation2Mol ratio be 1:3；There is methanation reaction during gaseous mixture is sent into syngas reactor（Reaction equation (6), (7)）
Town gas is obtained, methane production amount is 6507.2m3/h。
In the above method, the chemical products include artificial oil, methyl alcohol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon (LC) alkene
The product with CO as primary raw material such as hydrocarbon.
Embodiment 2
A kind of solid thermal carriers coal gasification electrical thermal storage method, is that, using electrical thermal storage system as shown in Figure 2, the system is adopted
Fluid bed powder coal gasification furnace main body is cylinder, and sectional area is 4m2, a height of 9m；Heating is resistance-type calandria；Gold
Category heat carrier is the small ball of a diameter of 1.2mm, is filled in fluid bed powder coal gasification stove, and packed height is 6m, the accumulation of energy
Method is comprised the following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load；
（2）Electric energy introducing fluid bed powder coal gasification stove internal heating metal heat carrier to temperature is reached 1000 DEG C and keeps constant；
（3）Coal dust and lime stone are added to fluid bed powder coal gasification stove by coal powder entrance and lime stone entrance respectively, will
Being preheated to 200 DEG C of gasifying agent vapor and being passed through by gasification agent inlet carries out coal gasification reaction to fluid bed powder coal gasification stove,
Wherein fluidising air velocity of the vapor in fluid bed powder coal gasification stove is 2.5m/s, C and gas in vapor, lime stone and coal dust
The mol ratio of the O in agent is 1:1, CaCO3It is 1 with the mol ratio of the S in coal dust:1；In course of reaction, entrained solids reaction
The gaseous mixture of material obtains high-temperature coal after constantly isolating cinder and fine ash in the presence of cyclone dust collectors and ash discharge sorter
Gas, wherein cinder are back to and proceed coal gasification reaction in fluid bed powder coal gasification stove, and fine ash of the diameter less than 1mm is in fine ash
Carry out entering ash silo after waste heat recovery is cooled to less than 150 DEG C in collecting chamber；CO and H in coal gas of high temperature2Yield be
12230.4m3/ h and 12790.4m3/h；
（4）Coal gas of high temperature is carried out into waste heat recovery by flue gas heat-exchange unit, in heat exchanger, coal gas of high temperature is exchanged heat with water,
Gas temperature can be down to 250 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
Clean gas after dedusting have two kinds of approach：One side clean gas can carry out chemical industry product directly as industrial chemicals
Product synthesize；Another aspect clean gas enter gas composition adjusting means, with vapor reaction generation H2, and control CO and institute
The H of generation2Mol ratio be 1:3；There is methanation reaction during gaseous mixture is sent into syngas reactor（Reaction equation (6), (7)）
Town gas is obtained, methane production amount is 6255.2m3/h。
In the above method, the chemical products include artificial oil, methyl alcohol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon (LC) alkene
The product with CO as primary raw material such as hydrocarbon.
Embodiment 3
A kind of solid thermal carriers coal gasification electrical thermal storage method, is to use many set electrical thermal storage systems as shown in Figure 1, described many
The fluid bed powder coal gasification furnace main body that set system is used is cylinder, and sectional area is 4m2, a height of 9m；Heating is electromagnetism sense
Answer coil；Metal thermal carrier is the small ball of a diameter of 1.2mm, is filled in fluid bed powder coal gasification stove, and packed height is 6m,
The energy-storage method is comprised the following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load, and will cover peak load regulation network system simultaneously more
Connection；
（2）Electric energy introducing fluid bed powder coal gasification stove internal heating metal heat carrier to temperature is reached 1000 DEG C and keeps constant；
（3）Coal dust and lime stone are added to fluid bed powder coal gasification stove by coal powder entrance and lime stone entrance respectively, will
It is preheated to 200 DEG C of gasifying agent CO2Being passed through by gasification agent inlet carries out coal gasification reaction to fluid bed powder coal gasification stove, wherein
CO2Fluidising air velocity in fluid bed powder coal gasification stove is 2.5m/s, CO2, O in C and gasifying agent in lime stone and coal dust
Mol ratio is 1:1, CaCO3It is 1 with the mol ratio of the S in coal dust:1；In course of reaction, the gaseous mixture of entrained solids reaction mass
Coal gas of high temperature is obtained after constantly isolating cinder and fine ash in the presence of cyclone dust collectors and ash discharge sorter, wherein cinder is returned
It is back to and proceeds coal gasification reaction in fluid bed powder coal gasification stove, fine ash of the diameter less than 1mm is carried out in fine ash collecting chamber
Waste heat recovery enters ash silo after being cooled to less than 150 DEG C；CO and H in coal gas of high temperature2Yield be 20826.4m3/ h, 509.2m3/
h；
（4）Coal gas of high temperature is carried out into waste heat recovery by flue gas heat-exchange unit, in heat exchanger, coal gas of high temperature is exchanged heat with water,
Gas temperature can be down to 250 DEG C or so, and the coal gas after cooling enters purifying and dedusting in deduster.
Clean gas after dedusting have two kinds of approach：One side clean gas can carry out chemical industry product directly as industrial chemicals
Product synthesize；Another aspect clean gas enter gas composition adjusting means, with vapor reaction generation H2, and control CO and institute
The H of generation2Mol ratio be 1:3；There is methanation reaction during gaseous mixture is sent into syngas reactor（Reaction equation (6), (7)）
Town gas is obtained, methane production amount is 6507.2m3/h。
In the above method, the chemical products include artificial oil, methyl alcohol, ethylene glycol, oxo-alcohols, dimethyl ether and low-carbon (LC) alkene
The product with CO as primary raw material such as hydrocarbon.
Claims (10)
1. a kind of solid thermal carriers coal gasification electrical thermal storage system, it is characterised in that including electric supply installation, fluid bed powder coal gasification
Stove, cyclone dust collectors, ash discharge sorter and fine ash collecting chamber, the electric supply installation connect the fluid bed powder coal gasification stove, institute
Stating fluid bed powder coal gasification stove includes body of heater, and the furnace interior is equipped with metal thermal carrier, and outside is provided with heating；The stove
Body is provided with coal powder entrance, lime stone entrance, gasification agent inlet, returning charge mouth and gas vent；The gas vent connects the rotation
Wind deduster, the feed opening of the cyclone dust collectors connects the feeding mouth of the ash discharge sorter, the ash discharge sorter it is thick
Ash outlet is connected with the returning charge mouth, and the fine ash outlet of the ash discharge sorter is connected with the fine ash collecting chamber；The ash discharge
Sorter is provided with air distribution plate, for filtering out fine ash particle；The electric supply installation is connected with the heating and power network respectively.
2. a kind of solid thermal carriers coal gasification electrical thermal storage system according to claim 1, it is characterised in that the system
Also include flue gas heat-exchange unit, waste heat boiler and deduster, the flue gas heat-exchange unit connects cyclone dust collectors and described respectively
Waste heat boiler, the waste heat boiler connects the deduster.
3. a kind of solid thermal carriers coal gasification electrical thermal storage system according to claim 2, it is characterised in that the fine ash
Heat exchanger, the outlet connection ash silo of the fine ash collecting chamber are provided with collecting chamber.
4. a kind of solid thermal carriers coal gasification electrical thermal storage system according to claim 3, it is characterised in that the electric heating
Element is induction coil, and the metal thermal carrier is the magnetic metal bead containing alkaline element of 0.5~4mm of diameter.
5. a kind of solid thermal carriers coal gasification electrical thermal storage system according to claim 3, it is characterised in that the electric heating
Element is resistance-type calandria, and the metal thermal carrier is the prill containing alkaline element of 0.5~4mm of diameter.
6. a kind of solid thermal carriers coal gasification electrical thermal storage system according to claim 2 ~ 5 any one claim,
It is characterized in that the system can also include town gas processing unit, the town gas processing unit include synthesis gas into
Divide adjusting means and methanation device, the gas composition adjusting means connects the deduster, for being changed by aqueous vapor
CO and H in reaction regulation coal gas of high temperature2Mol ratio be 1:3, the methanation device is used to be adjusted from the gas composition
Regulating device gaseous mixture out is completely converted into town gas by methanation reaction.
7. a kind of solid thermal carriers coal gasification electrical thermal storage method, is using system described in claim 6, it is characterised in that including
Following steps：
（1）Actual power consumption according to the paddy phase determines peak load regulation network amount, sets power load, and determine the peak load regulation network system
Quantity；If using 1 set of peak load regulation network system, being directly entered step（2）；If will be many using many set peak load regulation network systems
Step is entered back into after the system parallel connection of set peak load regulation network（2）；
（2）Electric energy introducing fluid bed powder coal gasification stove internal heating metal heat carrier to temperature is reached 800 ~ 1300 DEG C and keeps permanent
It is fixed；
（3）Coal dust and lime stone are added to fluid bed powder coal gasification stove by coal powder entrance and lime stone entrance respectively, will
Being preheated to 200 ~ 400 DEG C of gasifying agent and being passed through by gasification agent inlet carries out coal gasification reaction to fluid bed powder coal gasification stove, instead
During answering, the gaseous mixture of entrained solids reaction mass is constantly isolated slightly in the presence of cyclone dust collectors and ash discharge sorter
Coal gas of high temperature is obtained after ash and fine ash, wherein cinder is back in fluid bed powder coal gasification stove and proceeds coal gasification reaction, carefully
Ash is by entering ash silo after fine ash collecting chamber；
（4）Coal gas of high temperature is used to prepare town gas or chemical products.
8. a kind of solid thermal carriers coal gasification electrical thermal storage method according to claim 7, it is characterised in that the gasification
Agent is CO2, vapor, richness CO2One or more mixing in flue gas, stream of the gasifying agent in fluid bed powder coal gasification stove
Wind transmission speed is 0.5~8m/s.
9. a kind of solid thermal carriers coal gasification electrical thermal storage method according to claim 7, it is characterised in that the gasification
The mol ratio of the O in C and gasifying agent in agent, lime stone and coal dust is 1:0.9~1:1.5, CaCO3With the S in coal dust mole
Than being 1:1~2.5:1.
10. a kind of solid thermal carriers coal gasification electrical thermal storage method according to claim 7, it is characterised in that described by height
Warm coal gas is used to prepare town gas, and detailed process is：Coal gas of high temperature is entered after heat exchanger heat exchange, deduster dedusting successively
Gas composition adjusting means, is 250 ~ 300 DEG C of vapor reaction generation H with temperature2, and control in coal gas of high temperature CO and give birth to
Into H2Mol ratio be 1:3；There is methanation reaction acquisition city in 250 ~ 300 DEG C during gaseous mixture is sent into methanation device
Coal gas.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184097A1 (en) * | 2018-03-30 | 2019-10-03 | 中科聚信洁能热锻装备研发股份有限公司 | Novel circulating fluidized bed gasifier having electric heating-assisted temperature adjustment function, and control method therefor |
| CN112361429A (en) * | 2020-11-02 | 2021-02-12 | 河北建筑工程学院 | Solid heat storage and supply system of electric heating fluidized bed |
| CN112361428A (en) * | 2020-11-02 | 2021-02-12 | 河北建筑工程学院 | Electric heating fluidized bed heat accumulator and heat supply system |
| CN115597075A (en) * | 2022-10-31 | 2023-01-13 | 中国矿业大学（Cn） | Ultralow-concentration gas heat-storage combustion system and method based on magnetic field induction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950146A (en) * | 1974-08-08 | 1976-04-13 | Kamyr, Inc. | Continuous process for energy conserving cooperative coal feeding and ash removal of continuous, pressurized coal gasifiers and the like, and apparatus for carrying out the same |
| GB2350370A (en) * | 1999-05-27 | 2000-11-29 | Technip Benelux B V | Process and device for autothermic gasification of solid fuels |
| CN201046952Y (en) * | 2007-05-31 | 2008-04-16 | 宋建元 | Coal gasification device of circulating fluidized bed |
| CN102518480A (en) * | 2011-12-14 | 2012-06-27 | 华北电力大学 | Compressed air energy storage and coal-fired boiler integrated power generation system |
| CN102518516A (en) * | 2011-12-14 | 2012-06-27 | 华北电力大学 | Integral compressed air energy storage and coal gasification power generation system and integrated power generation method |
| CN102925219A (en) * | 2012-11-07 | 2013-02-13 | 东南大学 | Device for resource utilization of circulating fluidized bed coal-gasified discharged ash and use method |
-
2016
- 2016-12-26 CN CN201611216387.XA patent/CN106753579B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950146A (en) * | 1974-08-08 | 1976-04-13 | Kamyr, Inc. | Continuous process for energy conserving cooperative coal feeding and ash removal of continuous, pressurized coal gasifiers and the like, and apparatus for carrying out the same |
| GB2350370A (en) * | 1999-05-27 | 2000-11-29 | Technip Benelux B V | Process and device for autothermic gasification of solid fuels |
| CN201046952Y (en) * | 2007-05-31 | 2008-04-16 | 宋建元 | Coal gasification device of circulating fluidized bed |
| CN102518480A (en) * | 2011-12-14 | 2012-06-27 | 华北电力大学 | Compressed air energy storage and coal-fired boiler integrated power generation system |
| CN102518516A (en) * | 2011-12-14 | 2012-06-27 | 华北电力大学 | Integral compressed air energy storage and coal gasification power generation system and integrated power generation method |
| CN102925219A (en) * | 2012-11-07 | 2013-02-13 | 东南大学 | Device for resource utilization of circulating fluidized bed coal-gasified discharged ash and use method |
Non-Patent Citations (1)
| Title |
|---|
| 化学工业部科学技术情报研究所: "《煤气化与煤液化技术》", 31 May 1981 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184097A1 (en) * | 2018-03-30 | 2019-10-03 | 中科聚信洁能热锻装备研发股份有限公司 | Novel circulating fluidized bed gasifier having electric heating-assisted temperature adjustment function, and control method therefor |
| CN112361429A (en) * | 2020-11-02 | 2021-02-12 | 河北建筑工程学院 | Solid heat storage and supply system of electric heating fluidized bed |
| CN112361428A (en) * | 2020-11-02 | 2021-02-12 | 河北建筑工程学院 | Electric heating fluidized bed heat accumulator and heat supply system |
| CN112361428B (en) * | 2020-11-02 | 2021-08-20 | 河北建筑工程学院 | Electric heating fluidized bed heat accumulator and heat supply system |
| CN112361429B (en) * | 2020-11-02 | 2021-09-21 | 河北建筑工程学院 | Solid heat storage and supply system of electric heating fluidized bed |
| CN115597075A (en) * | 2022-10-31 | 2023-01-13 | 中国矿业大学（Cn） | Ultralow-concentration gas heat-storage combustion system and method based on magnetic field induction |
| CN115597075B (en) * | 2022-10-31 | 2023-06-30 | 中国矿业大学 | Ultralow-concentration gas heat-storage combustion system and method based on magnetic field induction |
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