CN105623744A - Solar energy-driven coal pyrolysis coupling coalite gasification reactor and method - Google Patents
Solar energy-driven coal pyrolysis coupling coalite gasification reactor and method Download PDFInfo
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- CN105623744A CN105623744A CN201511032130.4A CN201511032130A CN105623744A CN 105623744 A CN105623744 A CN 105623744A CN 201511032130 A CN201511032130 A CN 201511032130A CN 105623744 A CN105623744 A CN 105623744A
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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
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
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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
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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
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
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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
- C10J2300/0936—Coal fines for producing producer gas
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Abstract
The invention discloses a solar energy-driven coal pyrolysis coupling coalite gasification reactor and a method. The reactor mainly comprises a lifting pipe, a cyclone separator and an annulus inner circulation fluidized bed, wherein an outlet of the lifting pipe is connected to the cyclone separator, and the lifting pipe and the cyclone separator are arranged inside the annulus inner circulation fluidized bed; the lifting pipe is located at the center of the annulus inner circulation fluidized bed, a pipe wall of the lifting pipe is parallel to the wall surface of the annulus inner circulation fluidized bed, and an inlet of the lifting pipe extends out of the bottom of the annulus inner circulation fluidized bed for a distance; an air distributor is arranged at the bottom of the lifting pipe, and a coal feeding pipe is connected to the side wall of the lifting pipe; the top of the annulus inner circulation fluidized bed is provided with a light inlet window, the outer wall of the annulus inner circulation fluidized bed is coated with a heat insulation layer, and the bottom of the annulus inner circulation fluidized bed is provided with an annular air distributor.
Description
Technical field
The present invention relates to solar energy highly effective to utilize and coal clean conversion technical field, be specifically related to reactor and the method for the pyrolysis of coal coupling char Gasification of a kind of Driven by Solar Energy.
Background technology
Coal is important energy source and the industrial chemicals of China, and coal sub-prime sublevel cascade utilization is the important channel realizing coal high-efficiency clean utilization. Low-disintegration coal proportion in coal in China reserves, more than 40%, has the feature of the high and low ash of volatile matter content, low-sulfur, low-phosphorous and golf calorific value, is desirable industrial chemicals. The technology of low-disintegration coal low temperature pyrogenation coupling high-temperature semi-coke gasification can improve the energy utilization efficiency of low-disintegration coal, produces chemical products (benzene-toluene BTX) and the synthesis gas of high added value. Pyrolysis and what gasification reaction carried out respectively in pyrolysis reactor and gasification reactor in existing low-temperature pyrolysis of coal-char gasification coupled system, the semicoke that wherein pyrolysis reactor produces is the raw material of gasification reactor, the high-temperature gas of gasification reactor outlet is the energy source of pyrolysis reactor, there is substantial amounts of quality, momentum, energy and product transmission and exchange between two reactors. Thus bring a series of insoluble problem:
1) loss that between reactor, quality, momentum, energy and product are transmitted with energy in exchange process and material and heated air is difficult to avoid that;
2) quality and the heat balance of system are maintained, pyrolysis reactor is necessary for the semicoke granule that gasification furnace provides enough, so that with oxygen imperfect combustion discharges enough heats, the content of semicoke depends on the number of thermal decomposition product, and the content of oxygen affects carbon dioxide content and pyrolytic process semicoke yield in synthesis gas, system needs enough fine control, producing continuously must be set up in strict opereating specification, and the complexity of operation causes the maximization being difficult to ensure that energy utilization efficiency and target product;
3) basically the origin of heat of this technique is the incomplete oxidation of coal, although the synthesis gas of therefore its generation cleans but calorific value is very not high, and the use of oxygen improves the cost that system is run.
Summary of the invention
For overcoming the problems of the prior art, it is an object of the invention to provide the reactor of the pyrolysis of coal of a kind of Driven by Solar Energy coupling char Gasification and method, this reactor is capable of the integrated of pyrolysis-gasification reaction and streamline operation, utilizes for this technology scaleization and lays the foundation; And fundamentally solve energy source and realize coal energy and carry rank, make this system can produce high-quality fuel.
For achieving the above object, the present invention adopts the following technical scheme that:
A kind of Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor, including riser, cyclone separator, annular space ICFB, riser air distribution plate, coal-feeding tube, optical transmission window, it is vertically arranged with riser in wherein said annular space ICFB, and the outer wall of riser is connected by the inwall of baffle plate with annular space ICFB; The upper end of riser is provided with cyclone separator, and riser is connected with cyclone separator, and the top of cyclone separator is provided with the mozzle passing annular space ICFB; The lower end of riser is stretched out bottom annular space ICFB, and the sidewall of riser is provided with coal-feeding tube; The top of annular space ICFB offers the optical transmission window that can pass through sunlight.
Described annular space ICFB outer wall is coated with heat-insulation layer.
Annular air distribution plate it is provided with bottom described annular space ICFB.
Described baffle plate bottom is arranged higher than annular air distribution plate.
The inert purge gas avoiding optical transmission window to tarnish is passed at optical transmission window place.
Described riser is vertically arranged in the center of annular space ICFB.
It is provided with riser air distribution plate in described riser, and riser air distribution plate is arranged on the bottom of riser.
The diameter of described riser is less than annular space ICFB.
A kind of pyrolysis of coal coupling char Gasification method of Driven by Solar Energy, the inertia accumulation of heat granule annular space ICFB bed is irradiated from optical transmission window after solar light focusing, the shuttling movement of inertia accumulation of heat granule, the bed temperature making annular space ICFB is uniformly distributed, and inertia accumulation of heat granule stores solar energy and provides energy source for gasification reaction, noble gas fluidizes the pulverized coal particle from coal-feeding tube after entering bottom riser, there is pyrolytic reaction, needed for pyrolysis, energy is from the convection heat transfer' heat-transfer by convection of inertia accumulation of heat granule Yu riser sidewall, pulverized coal particle pyrolysis produces pyrolysis gaseous products and semicoke granule, wherein, pyrolysis gaseous products is flowed out by cyclone separator top mozzle, and semicoke granule exits into annular space ICFB bottom cyclone separator, it is the steam of minimum fluidization velocity that annular air distribution plate both sides each lead into higher than steam and the flow velocity of 1.5 times of minimum fluidization velocities, under the steam effect of friction speed, inertia accumulation of heat granule on the bed of annular space ICFB proceeds by and moves in bed inner loop, and carry the motion of semicoke granule, the mutual collision of inertia accumulation of heat granule and semicoke granule, friction makes semicoke granule be rapidly heated gasification temperature, reach semicoke granule and the steam higher than 1.5 times of minimum fluidization velocities of gasification temperature, the steam that flow velocity is minimum fluidization velocity carries out gasification reaction, produce hydrogen-rich synthetic gas.
Described inertia accumulation of heat granule is silicon dioxide; Described noble gas is nitrogen.
The present invention is by arranging annular space ICFB, riser and cyclone separator, wherein leg outlet is connected with cyclone inlet, riser and select powder separator to be all disposed within the inside of annular space ICFB, annular space internal circulation fluidized bed reactor top is equipped with highly transmissive window, injecting through window from top after solar focusing, bed is heated, it is possible to be connected with existing tower type solar heat build-up system in the way of directly radiating. This apparatus structure is simple, by arranging riser, riser is connected with coal-feeding tube, pyrolysis and gasification course of reaction are integrated in a reactor, simplify original complicated regulation and control flow process, it is only necessary to regulate the parameters such as the mass flow of steam in the mass flow of coal dust and nitrogen in riser and annular space ICFB and can realize the coupling of material, energy.
In gasification of the present invention, the inner loop of semicoke can ensure that enough time of staying, making gasification reaction complete, when experiment display is without catalyst, in annular space ICFB, semicoke can reach 90% with charcoal conversion ratio in the gasification reaction of steam.
The present invention directly provides energy by solar energy heat build-up for gasifying; heat is provided as accumulation of heat and heat transfer medium for pyrolysis riser by granulate mixture in annular space ICFB; Energy harvesting transformation efficiency is improve by the cascade utilization of solar energy; due to using steam as gasification reaction gas; gasification product hydrogen content is high so that gaseous fuel calorific value improves.
The present invention makes the pyrolysis under nitrogen atmosphere of low-disintegration coal powder in riser, after high temperature cyclone separator, semicoke granule enters the bed face of annular space ICFB bottom cyclone separator, the gaseous product (comprising pyrolysis synthesis gas, BTX and tar) that pyrolysis produces flows out from recirculating fluidized bed top, enters separable programming. In annular space ICFB, semicoke granule is with annular space ICFB granule shuttling movement, by collision and friction mutually between granule, realization is brought rapidly up, the steam generating gasification in high temperature environments simultaneously passed into bottom is reacted, produce hydrogen, carbon monoxide and methane are main high heat value gas product, overcome prior art and have that process integration degree is poor, complicated operation and the problem such as production fuel value is low.
Further, the diameter of riser is less than annular space ICFB, it is possible to ensure that the noble gas passed in riser can carry out heat exchange with the bed on annular space ICFB. Thus providing sufficient heat for pyrolysis of coal.
Further, riser is arranged in the center of annular space ICFB so that the steam of the different in flow rate passed in annular space ICFB can make bed be circulated motion around baffle plate.
Accompanying drawing explanation
Fig. 1 is Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor schematic diagram.
Fig. 2 is the sectional view in Fig. 1 along line D-D.
In figure, 1 is riser, and 2 is cyclone separator, 3 be annular space ICFB 3,4 be riser air distribution plate 4,5 is coal-feeding tube 5,6 is noble gas, and 7 produce pyrolysis gaseous products for pyrolysis, and 8 is semicoke granule, 9 is optical transmission window, and 10 is inert purge gas, and 11 is heat-insulation layer, 12 is annular air distribution plate, and 13 is inertia accumulation of heat granule, and 14 is the steam of 1.5 times of minimum fluidization velocities, 15 is minimum fluidization velocity steam, and 16 is hydrogen-rich synthetic gas.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
As it is shown in figure 1, the present invention includes: riser 1, cyclone separator 2, annular space ICFB 3, riser air distribution plate 4, coal-feeding tube 5, optical transmission window 9, heat-insulation layer 11 and annular air distribution plate 12. Wherein, being vertically arranged with riser 1 in annular space ICFB 3, referring to Fig. 2, riser 1 is arranged on the center of annular space ICFB 3, and the outer wall of riser 1 is connected by the inwall of baffle plate 17 with annular space ICFB 3. The upper end of riser 1 is provided with cyclone separator 2, and riser 1 is connected with cyclone separator 2, cyclone separator 2 is arranged on the inside of annular space ICFB 3, the top of cyclone separator 2 is provided with the mozzle passing annular space ICFB 3, and the bed height of annular space ICFB 3 is lower than the particle outlet of cyclone separator; The lower end of riser 1 is stretched out bottom annular space ICFB 3, is provided with riser air distribution plate 4 in riser 1, and riser air distribution plate 4 is arranged on the bottom of riser 1, and the sidewall of riser 1 is provided with coal-feeding tube 5, and coal-feeding tube 5 is connected with riser. The top of annular space ICFB 3 offers the optical transmission window 9 that can pass through sunlight.
Annular space ICFB 3 outer wall is coated with heat-insulation layer 11, is provided with annular air distribution plate 12 bottom annular space ICFB 3, and baffle plate 17 bottom is arranged higher than annular air distribution plate 12 1 segment distance, and namely baffle plate 17 bottom and annular air distribution plate 12 interval are arranged.
Inert purge gas 10 is passed into, it is to avoid optical transmission window 9 is stained by semicoke granule near optical transmission window 9.
Reaction mass, bed and the product adopted in the present invention is respectively as follows: noble gas 6 (nitrogen), pyrolysis produces pyrolysis gaseous products 7 (H2��CO��CH4, tar and BTX etc.), semicoke granule 8, inert purge gas 10,13,1.5 times of minimum fluidization velocity steam 14 of inertia accumulation of heat granule, minimum fluidization velocity steam 15 and hydrogen-rich synthetic gas 16.
Inertia accumulation of heat granule 13 can be silicon dioxide.
The method of the pyrolysis of coal coupling char Gasification of a kind of Driven by Solar Energy: irradiate the inertia accumulation of heat granule 13 annular space ICFB 3 bed after solar light focusing from optical transmission window 9, the shuttling movement of inertia accumulation of heat granule 13, the bed temperature making annular space ICFB 3 is uniformly distributed, and inertia accumulation of heat granule 13 stores solar energy provides energy source for gasification reaction; Noble gas 6 (nitrogen) enters the fluidisation pulverized coal particle from coal-feeding tube 5 from riser 1 bottom inlet, there is pyrolytic reaction, needed for pyrolysis, energy is from the convection heat transfer' heat-transfer by convection of inertia accumulation of heat granule 13 with riser 1 sidewall, and pulverized coal particle pyrolysis produces pyrolysis gaseous products 7 (H2��CO��CH4, tar and BTX etc.) and semicoke granule 8, wherein, pyrolysis gaseous products 7 is by cyclone separator 2 top mozzle outflow reactor, and semicoke granule 8 exits into annular space ICFB 3 bottom cyclone separator 2, annular air distribution plate 12 both sides each lead into the steam 14 higher than 1.5 times of minimum fluidization velocities and steam 15 that flow velocity is minimum fluidization velocity, under the steam effect of friction speed, inertia accumulation of heat granule 13 on the bed of annular space ICFB 3 proceeds by and moves in bed inner loop, and carry semicoke granule 8 and move, the mutual collision of inertia accumulation of heat granule 13 and semicoke granule 8, friction makes semicoke granule 8 be rapidly heated gasification temperature, reach semicoke granule 8 and the steam 14 higher than 1.5 times of minimum fluidization velocities of gasification temperature, the steam 15 that flow velocity is minimum fluidization velocity carries out gasification reaction, produce hydrogen-rich synthetic gas 16. owing to being pass into from annular air distribution plate 12 both sides higher than the steam 14 of 1.5 times of minimum fluidization velocities and the steam 15 that flow velocity is minimum fluidization velocity, the steam of different in flow rate can carry semicoke granule 8 and inertia accumulation of heat granule 13 and move along the hole between baffle plate 17 bottom and annular air distribution plate 12.
The heat-insulation layer 11 that the outer wall of annular space ICFB 3 is arranged can reduce the heat radiation flux in bed and between the external world, keeps homogeneous temperature in bed. Be provided with annular air distribution plate 12 in the bottom of annular space ICFB 3, loosely-packed inertia accumulation of heat granule 13 on annular air distribution plate 12, the height of inertia accumulation of heat granular layer is lower than the outlet bottom cyclone separator 2.
Carrying out the low temperature pyrogenation reaction of coal dust in the present invention in riser 1, noble gas adopts nitrogen, and energy is from the convection heat transfer' heat-transfer by convection of material in annular space ICFB; At cyclone separator 2, thermal decomposition product being carried out gas solid separation, gaseous products enters next technological process, and semicoke enters in annular space ICFB 3 the high-temperature gasification reaction carrying out semicoke, and gasifying agent is water vapour, and energy is from focused solar energy.
Experiments show that, semicoke can reach 90% with charcoal conversion ratio in the gasification reaction of steam.
The operation principle of the present invention is as follows: noble gas (nitrogen) 6 enters from riser 1 bottom inlet, by fast fluidization after riser air distribution plate 4 from the pulverized coal particle of coal-feeding tube 5, pyrolysis energy is from the convection heat transfer' heat-transfer by convection of annular space ICFB 3 annular space bed, and pulverized coal particle pyrolysis produces pyrolysis gaseous products 7 (H2��CO��CH4, tar and BTX etc.) and semicoke granule 8, wherein pyrolysis gaseous products 7 is by cyclone separator 2 top mozzle outflow reactor, and semicoke granule 8 exits into annular space ICFB 3 bottom cyclone separator 2. Annular space ICFB 3 top layout has optical transmission window 9, irradiates bed from this window, directly provided gasification reaction energy source by radiation mode after solar focusing. Being arranged around inert purge gas 10 at optical transmission window 9 avoids optical transmission window 9 to be stained by semicoke granule. The heat-insulation layer 11 that the outer wall of annular space ICFB 3 is arranged can reduce the heat radiation flux in bed and between the external world, keeps homogeneous temperature in bed. Be provided with annular air distribution plate 12 in the bottom of annular space ICFB 3, loosely-packed inertia accumulation of heat granule 13 on annular air distribution plate 12, the height of granular layer is lower than the outlet bottom cyclone separator 2. By annular air distribution plate 12 both sides respectively through higher than the steam 14 of 1.5 times of minimum fluidization velocities and steam 15 that flow velocity is minimum fluidization velocity. Under the steam effect of friction speed, in annular space ICFB 3, inertia accumulation of heat granule 13 proceeds by and moves in bed inner loop, this process will carry motion from the semicoke granule 8 bottom cyclone separator 2, the collision mutually of inert particle 13 and semicoke granule 8, friction make semicoke granule be rapidly heated gasification temperature, semicoke granule 8 and the steam 15 of the steam 14 of 1.5 times of minimum fluidization velocities, minimum fluidization velocity after intensification carry out gasification reaction, produce hydrogen-rich synthetic gas 16.
Claims (10)
1. a Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor, it is characterized in that, including riser (1), cyclone separator (2), annular space ICFB (3), riser air distribution plate (4), coal-feeding tube (5), optical transmission window (9), it is vertically arranged with riser (1) in wherein said annular space ICFB (3), and the outer wall of riser (1) is connected by the inwall of baffle plate (17) with annular space ICFB (3); The upper end of riser (1) is provided with cyclone separator (2), and riser (1) is connected with cyclone separator (2), the top of cyclone separator (2) is provided with the mozzle passing annular space ICFB (3); Annular space ICFB (3) bottom is stretched out in the lower end of riser (1), and the sidewall of riser (1) is provided with coal-feeding tube (5); The top of annular space ICFB (3) offers the optical transmission window (9) that can pass through sunlight.
2. a kind of Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor according to claim 1, it is characterised in that described annular space ICFB (3) outer wall is coated with heat-insulation layer (11).
3. a kind of Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor according to claim 1, it is characterised in that described annular space ICFB (3) bottom is provided with annular air distribution plate (12).
4. a kind of Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor according to claim 3, it is characterised in that described baffle plate (17) bottom is arranged higher than annular air distribution plate (12).
5. a kind of Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor according to claim 1, it is characterised in that pass into the inert purge gas (10) avoiding optical transmission window (9) to tarnish at optical transmission window (9) place.
6. a kind of Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor according to claim 1, it is characterised in that described riser (1) is vertically arranged in the center of annular space ICFB (3).
7. a kind of Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor according to claim 1, it is characterized in that, it is provided with riser air distribution plate (4) in described riser (1), and riser air distribution plate (4) is arranged on the bottom of riser (1).
8. a kind of Driven by Solar Energy pyrolysis of coal coupling char Gasification reactor according to claim 1, it is characterised in that the diameter of described riser is less than annular space ICFB.
9. the pyrolysis of coal coupling char Gasification method of a Driven by Solar Energy, it is characterized in that, inertia accumulation of heat granule (13) annular space ICFB (3) bed is irradiated from optical transmission window (9) after solar light focusing, the shuttling movement of inertia accumulation of heat granule (13), the bed temperature making annular space ICFB (3) is uniformly distributed, and inertia accumulation of heat granule (13) stores solar energy and provides energy source for gasification reaction, noble gas (6) fluidizes the pulverized coal particle from coal-feeding tube (5) after entering from riser (1) bottom, there is pyrolytic reaction, needed for pyrolysis, energy is from the convection heat transfer' heat-transfer by convection of inertia accumulation of heat granule (13) Yu riser (1) sidewall, pulverized coal particle pyrolysis produces pyrolysis gaseous products (7) and semicoke granule (8), wherein, pyrolysis gaseous products (7) is flowed out by cyclone separator (2) top mozzle, and semicoke granule (8) exits into annular space ICFB (3) from cyclone separator (2) bottom, annular air distribution plate (12) both sides each lead into the steam (14) higher than 1.5 times of minimum fluidization velocities and steam (15) that flow velocity is minimum fluidization velocity, under the steam effect of friction speed, inertia accumulation of heat granule (13) on the bed of annular space ICFB (3) proceeds by moves in bed inner loop, and carry semicoke granule (8) motion, the mutual collision of inertia accumulation of heat granule (13) and semicoke granule (8), friction makes semicoke granule (8) be rapidly heated gasification temperature, reach semicoke granule (8) and the steam (14) higher than 1.5 times of minimum fluidization velocities of gasification temperature, the steam (15) that flow velocity is minimum fluidization velocity carries out gasification reaction, produce hydrogen-rich synthetic gas (16).
10. the pyrolysis of coal coupling char Gasification method of a kind of Driven by Solar Energy according to claim 9, it is characterised in that described inertia accumulation of heat granule is silicon dioxide; Described noble gas is nitrogen.
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| CN112159683A (en) * | 2020-09-16 | 2021-01-01 | 中国科学院广州能源研究所 | Method and device for coal and sludge mixed gasification |
| CN113388428A (en) * | 2021-04-12 | 2021-09-14 | 西北大学 | Medium-low temperature pyrolysis semicoke passivation composition for coal |
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