CN205974375U - Syngas system is produced to pyrolysis of coal and catalytic cracking - Google Patents
Syngas system is produced to pyrolysis of coal and catalytic cracking Download PDFInfo
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- CN205974375U CN205974375U CN201620456537.3U CN201620456537U CN205974375U CN 205974375 U CN205974375 U CN 205974375U CN 201620456537 U CN201620456537 U CN 201620456537U CN 205974375 U CN205974375 U CN 205974375U
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Abstract
The utility model provides a syngas system is produced to pyrolysis of coal and catalytic cracking, include: pyrolysis and cracking reactor include: thermal -insulated brick wall will the inside space separation of reactor becomes the pyrolysis chamber with splitting chamber, the device is added to the catalyst, its with splitting chamber connects, communication member, communication member sets up the lower part of thermal -insulated brick wall, the spray column, the spray column with cracked gas outlet connects, the reborner, the reborner with the spray column is connected, the gas jar, the gas jar with the reborner is connected. This syngas system can carry out two kinds of operations of pyrolysis and schizolysis, and oil gas that the pyrolysis chamber produced carries out deep cracking to through catalytic cracking's mode, produce hydrogen in a large number. This system produces a large amount of cracking gases, in the entering reborner, can be carbon monoxide and hydrogen with methane and a small number of many carbon gaseous state hydrocarbon conversion, and the synthetic feed gas in industrial basis can be done to the synthetic gas, produces various methyl alcohol, ethylene glycol, acetic acid product.
Description
Technical field
This utility model belongs to the pyrolysis of coal and catalytic pyrolysiss aerogenesis technical field and in particular to a kind of be based on heat accumulating type spoke
Penetrate pipe heated particle pyrolysis of coal and cracking system with producing synthesis gas system.
Background technology
Rich coal resources in China, in addition to part is used for coking, conversion processing, the overwhelming majority is for directly firing for raw coal
Burn.Coal directly burns, and leads to the petroleum resources being rich in coal also sufficiently not refined utilization, and the direct combustion heat
Efficiency is low, serious to environmental disruption.The pyrolysis of coal is to heat coal under an inert atmosphere, produces semicoke, coal gas and tar etc. and produces
Product, these products obtaining, the synthesis of coal with cascade utilization, while petroleum resources is fully extracted, can be improve again again
Utilization ratio.Pyrolytic process of coal can be divided into external-heat and internal heat type two class.External heating type heat efficiency is low, and volatility product twice decomposition is tight
Weight；Internal heat type technique overcomes the shortcoming of external-heat, by heat carrier（Solid thermal carriers and gas heat carrier）Heat transfer
To coal., there are carbonization gas and rushed dilute, condensate recovery system is huge in gas heat carrier technique, gas heating value low it is difficult to comprehensive further
Close the shortcoming utilizing.Comparatively solid thermal carriers technique have certain advantage, but there is complex process operation link too
Many, the shortcomings of manufacturing cost is high.The existing pyrolysis type of furnace is all to produce oil product as main purpose, but is mostly pyrolyzed the type of furnace,
Especially to process the type of furnace as raw material for the fine coal, contain a large amount of dirt in pyrolysis oil, cause pyrolysis oil to be difficult to effectively utilizes, pyrolysis oil
The problems such as be worth high.Therefore, how to design all simple pyrolysis of coal of a kind of high-effective dust-removing, system structure and technological process and urge
Changing cracking production of synthetic gas system becomes the problem of this area urgent need to resolve.
Utility model content
This utility model is directed to the deficiencies in the prior art, designs and develop a kind of pyrolysis of coal and catalytic pyrolysiss production of synthetic gas
System, this response system can be pyrolyzed and be cracked two kinds of operations, the oil gas that pyrolysis chamber produces, and can enter cracking room and carry out depth
Degree cracking, the tar molecules of macromole is cracked into the gaseous hydrocarbons of small molecule, and by way of catalytic pyrolysiss, a large amount of generations
Hydrogen.This response system produces substantial amounts of cracking gas, enters in reburner, can be one by methane and minority many carbon gaseous hydrocarbons
Carbonoxide and hydrogen, synthesis gas can do industrial basic synthetic raw gas, produces various methanol, ethylene glycol, acetate products.Should
System avoids the problem producing pyrolysis oil dust-laden, and the clean and effective being truly realized coal utilizes.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：
This utility model provides a kind of pyrolysis of coal and catalytic pyrolysiss production of synthetic gas system.According to enforcement of the present utility model
Example, this system includes：Pyrolysis hopper；First feed arrangement, described first feed arrangement is connected with described pyrolysis hopper；Pyrolysis and
Cracking reactor, including：Charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, described charging aperture is arranged on described pyrolysis chamber
On roof, described cracking gas outlet is arranged on the side wall of described cracking room, and：Heat accumulation type radiant tube, described heat accumulating type spoke
Inside described pyrolysis chamber and described cracking room, every layer has many edges to the short transverse multi-tier arrangement penetrating pipe along described reactor
The described heat accumulation type radiant tube of horizontal direction arrangement；Heat-insulated brick wall, described heat-insulated brick wall is arranged on described reactor transverse width
2/3 at, vertically through in described reactor, the inner space of described reactor is separated into described pyrolysis chamber and described
Cracking room；Catalyst-adding device, it is connected with described cracking room, for putting on catalyst for cracking in described cracking room；
Communication member, described communication member is arranged on the bottom of described heat-insulated brick wall, for the oil gas producing described pyrolysis chamber, passes through
Described communication member, is passed into described cracking room；Spray column, described spray column is connected with the outlet of described cracking gas；Reburner, institute
State reburner to be connected with described spray column；Fuel cartridge, described fuel cartridge is connected with described reburner.
Inventor finds, simple according to the synthesis gas system structure of this utility model embodiment, easy to operate, Temperature Distribution
Uniformly, heats are good.This response system can be pyrolyzed and be cracked two kinds of operations, the oil gas that pyrolysis chamber produces, and can enter
Cracking room carries out deep pyrolytic, the tar molecules of macromole is cracked into the gaseous hydrocarbons of small molecule, and by catalytic pyrolysiss
Mode, produces hydrogen in a large number.This response system produces substantial amounts of cracking gas, enters in reburner, can be by methane and the many carbon of minority
Gaseous hydrocarbons are carbon monoxide and hydrogen, and synthesis gas can do industrial basic synthetic raw gas, produces various methanol, second two
Alcohol, acetate products.This system obviates the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized coal utilizes.Additionally,
Two kinds of operations can be carried out in one body of heater, unite two into one, save construction cost and floor space.And, system that employs storage
Hot type radial canal heating technique, without gas, solid heat carrier heating, simplifies system work while the thermal efficiency that improve reactor
Skill.
According to embodiment of the present utility model, described communication member is the multiple hole of inclusion being arranged on described heat-insulated brick wall
Pore area；Or described communication member is on described heat-insulated brick wall longitudinal length, positioned at the opening of lower position.
According to embodiment of the present utility model, the thickness of described heat-insulated brick wall is 5-15cm, and the height of described pore area is 3-
15cm, a diameter of 1-3cm in described hole, the height of described opening is 3-15cm.
According to embodiment of the present utility model, further include combustion gas pressure fan and combustion gas air-introduced machine, wherein, described combustion gas
One end of pressure fan is connected with the outlet of described spray column, and the other end is connected with the fuel gas inlet of described heat accumulation type radiant tube；Institute
State combustion gas air-introduced machine to be arranged between described spray column and described reburner.
According to embodiment of the present utility model, also include loading hopper；Second feed arrangement, it is connected with described loading hopper；
Drying device, it is connected with the exhanst gas outlet on described second feed arrangement and described heat accumulation type radiant tube respectively；Gas solid separation
Device, it is connected with described drying device and described pyrolysis hopper respectively；Exhaust gas cleaner, it is filled with described gas solid separation
Put and be connected.
According to embodiment of the present utility model, described catalyst-adding device includes：Catalyst hooper；Catalyst is responsible for,
Described catalyst supervisor is connected with described catalyst hooper；Catalyst arm, described catalyst arm and described catalyst supervisor
It is connected, described catalyst arm passes through the wall of described reactor cracking room and extends to inside described cracking room；At least one
Catalyst ejector part, described catalyst ejector part is arranged on described catalyst arm, and is located inside described cracking room；Preferably
, described catalyst arm is multiple and arranged parallel to each other along the length direction of described catalyst supervisor, and catalyst arm sets
Put the interlayer in described heat accumulation type radiant tube；Preferably, described catalyst ejector part includes catalyst ejection passage and is arranged on
Nozzle on described catalyst ejection passage, described nozzle is provided with regulating valve.
According to embodiment of the present utility model, described pyrolysis hopper is by described first feed arrangement and described charging aperture phase
Even, further include that semicoke exports, described semicoke outlet is arranged on the bottom of described pyrolysis chamber, described semicoke outlet and described half
Burnt conveyer device connects.
In other side of the present utility model, this utility model provides one kind and carries out coal using foregoing system
The method of pyrolysis and catalytic pyrolysiss production of synthetic gas is it is characterised in that comprise the following steps：A. particulate coal is added by charging aperture
Enter in reactor, in the pyrolysis chamber of described reactor, complete pyrolytic process；B. it is pyrolyzed the oil gas of generation, by described anti-
Answer the communication member of setting on the heat-insulated brick wall of device, enter into the cracking room of described reactor；C. the oil gas being pyrolyzed generation enters into
Described cracking is indoor, and catalyst is sprayed in described cracking room catalyst-adding device, and pyrolysis oil gas is indoor in described cracking
Complete catalytic pyrolysis process, produce cracking gas；D. described cracking gas is entered in spray column by cracking gas outlet, splits to described
Vent one's spleen and carry out purified treatment；E. a purified net cracking gas part enters through the combustion gas that combustion gas pressure fan sends into heat accumulation type radiant tube
Mouthful, net cracking gas another part sends into reburner, in described reburner, methane and many carbon hydrocarbon in cracking gas through combustion gas air-introduced machine
It is converted into carbon monoxide and Hydrogen synthesis gas；F. described synthesis gas enters in fuel cartridge and stores.
According to embodiment of the present utility model, in described step a, described particulate coal is from the charging aperture on described reactor top
It is added in described reactor, and is broken up by the described heat accumulation type radiant tube in described reactor, pyrolysis char is from described reaction
The semicoke outlet of device bottom is discharged；In described step a, described particulate coal is by the described heat accumulating type spoke in described reactor pyrolysis chamber
Penetrate pipe and be heated to 500-600 DEG C, in described step b, described pyrolysis oil gas is by the described heat accumulating type in described reactor cracking room
Radial canal is heated to 600-900 DEG C, and in described step c, described catalyst is equably sprayed on described by catalyst ejector part
In cracking room.
According to embodiment of the present utility model, the granularity of described particulate coal is below 10mm.
The beneficial effects of the utility model are：
1）Take heat accumulation type radiant tube moving bed process heating 10mm particles below and powder coal, uniformity of temperature profile,
Heats are good, and response system structure is simple, easy to operate.
2）Reactor is divided into pyrolysis chamber and cracking room, the oil gas that pyrolysis chamber produces, and can carry out deep pyrolytic in cracking room, greatly
The tar molecules of molecule are cracked into the gaseous hydrocarbons of small molecule, and by way of catalytic pyrolysiss, produce a large amount of hydrogen, combustion gas product
Matter is high；Produce substantial amounts of cracking gas product, it is to avoid the problem of pyrolysis oil dust-laden, be truly realized the clean and effective of Fossil fuel
Using.
3）Two kinds of operations can be carried out in one body of heater, unite two into one, save construction cost and floor space.
4）Cracking gas enters in reburner, can be carbon monoxide and hydrogen by methane and minority many carbon gaseous hydrocarbons, close
Become multiple product.
Brief description
Fig. 1 is this utility model pyrolysis of coal and catalytic pyrolysiss production of synthetic gas system construction drawing.
Fig. 2 is the structure of reactor figure of this utility model pyrolysis of coal and catalytic pyrolysiss production of synthetic gas system.
Fig. 3 is the front view of the heat-insulated brick wall in this utility model reactor.
Wherein, 1. loading hopper；2. riser exsiccator；3. thermal storage type moving bed reactor；310th, cracking gas outlet；311、
Exhanst gas outlet；320th, charging aperture；321st, air intake；322nd, fuel gas inlet；330th, semicoke outlet；340th, cracking room；350th, heat
Solution room；360th, communication member；370th, heat-insulated brick wall；380th, heat accumulation type radiant tube；4. cyclone separator is dried；5. it is pyrolyzed hopper；
6. tail gas air-introduced machine；7. exhaust gas cleaner；8. chimney；9. rotary feeder；10. spray column；11. combustion gas air-introduced machines；12. combustions
Pneumatic transmission blower fan；13. reburners；14. conveying worms；15. fuel cartridges；16. catalyst hoopers；17. catalyst ejection passage.
Specific embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment
The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new
Type, and it is not intended that to restriction of the present utility model.Unreceipted particular technique or condition in embodiment, according in the art
The technology described by document or condition or carry out according to product description.
According to one side of the present utility model, this utility model provides a kind of pyrolysis of coal and catalytic pyrolysiss production of synthetic gas
System, Fig. 1 is this pyrolysis of coal and the structure chart of catalytic pyrolysiss production of synthetic gas system, as shown in figure 1, pyrolysis of coal and catalytic pyrolysiss produce
Synthesis gas system includes：Pyrolysis hopper 5；First feed arrangement 9, described first feed arrangement 9 is connected with described pyrolysis hopper 5；
Pyrolysis and cracking reactor, including：Charging aperture 320, pyrolysis chamber 350, cracking room 340, cracking gas outlet 310, heat accumulating type radiation
Pipe 380, heat-insulated brick wall 370, catalyst-adding device and communication member 360, described charging aperture is arranged on the top of described pyrolysis chamber
On wall, described cracking gas outlet is arranged on the side wall of described cracking room, and it is horizontal that described heat-insulated brick wall is arranged on described reactor
At the 2/3 of width, vertically through in described reactor, by the inner space of described reactor be separated into described pyrolysis chamber and
Described cracking room；Catalyst-adding device is connected with described cracking room, for putting on catalyst for cracking in described cracking room；
Described communication member is arranged on described heat-insulated brick wall, pyrolysis chamber is connected with cracking room it is preferred that described communication member is arranged
In the bottom of described heat-insulated brick wall, for the oil gas producing described pyrolysis chamber, by described communication member, be passed into described in split
Solution room；Spray column, described spray column is connected with the outlet of described cracking gas；Reburner, described reburner is connected with described spray column；
Fuel cartridge, described fuel cartridge is connected with described reburner.
Inventor finds, simple according to the synthesis gas system structure of this utility model embodiment, easy to operate, Temperature Distribution
Uniformly, heats are good.This response system can be pyrolyzed and be cracked two kinds of operations, the oil gas that pyrolysis chamber produces, and can enter
Cracking room carries out deep pyrolytic, the tar molecules of macromole is cracked into the gaseous hydrocarbons of small molecule, and by catalytic pyrolysiss
Mode, produces hydrogen in a large number.This response system produces substantial amounts of cracking gas, enters in reburner, can be by methane and the many carbon of minority
Gaseous hydrocarbons are carbon monoxide and hydrogen, and synthesis gas can do industrial basic synthetic raw gas, produces various methanol, second two
Alcohol, acetate products.This system obviates the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized coal utilizes.Additionally,
Two kinds of operations can be carried out in one body of heater, unite two into one, save construction cost and floor space.
According to specific embodiment of the utility model it is adaptable to the particle diameter of the coal of this synthesis gas system process is not especially limited
System, can also be able to be small-particle coal for lumped coal, in some preferred embodiments of the present utility model, this synthesis gas system is adopted
With particle diameter 10mm particles below coal, thus, it is possible to make full use of little particle pyrolysis material, resource utilization is high, and can solve the problem that
Bulk deposition pollutes the problem of environment.
According to specific embodiment of the utility model it is adaptable to the type of furnace of the described reactor 3 of this synthesis gas system is not subject to
Especially restriction, can be thermal storage type moving bed pyrolysis and cracking reactor 3 can also be other types, such as non-heat accumulating type or non-shifting
Dynamic formula etc., as long as pyrolysis chamber and cracking room can be divided into by the integration of heat-insulated brick wall.
According to specific embodiment of the utility model, Fig. 2 is the pyrolysis of this pyrolysis of coal and cracking production of synthetic gas system and splits
Solution reactor 3 structure chart, as shown in Fig. 2 described heat-insulated brick wall is arranged in reactor it is preferred that to be located at reactor laterally wide
At the 2/3 of degree, the thickness of heat-insulated brick wall is 5-15cm, heat-insulated brick wall vertically through in reactor, by the inside of reactor
Space is separated into pyrolysis chamber and cracking room, and this structure makes to be provided with pyrolysis chamber and cracking room in a body of heater, and is produced from pyrolysis chamber
Raw oil gas, can enter cracking room and carry out Deep catalytic cracking, the tar molecules of macromole are cracked into the gaseous state of small molecule
Hydro carbons, produces substantial amounts of cracking gas, thus avoiding the problem producing pyrolysis oil dust-laden.And, two can be carried out in a body of heater
Plant operation, unite two into one, save construction cost and floor space.
According to specific embodiment of the utility model, the concrete species of described communication member 360 is not particularly limited, as long as
Pyrolysis chamber can be connected with cracking room, thus the oil gas that pyrolysis chamber is produced is passed into cracking room.In this utility model
Some embodiments in, when Fig. 3 is in terms of the from left to right of reactor, the front view of heat-insulated brick wall, as shown in figure 3, communication member
Can be for being arranged on the pore area in the multiple holes of inclusion on heat-insulated brick wall, under preferable case, the height of described pore area is 3-15cm, institute
State a diameter of 1-3cm in hole.Communication member can also be on heat-insulated brick wall longitudinal length, positioned at the opening of lower position, preferably
In the case of, the height of described opening is 3-15cm.
According to specific embodiment of the utility model, catalyst-adding device includes：Catalyst hooper 16；Catalyst master
Pipe, described catalyst supervisor is connected with described catalyst hooper；Catalyst arm, described catalyst arm and described catalyst master
Pipe is connected, and described catalyst arm passes through the wall of described reactor cracking room and extends to inside described cracking room, catalyst
Arm is arranged on the interlayer of the indoor heat accumulation type radiant tube of cracking；At least one catalyst ejector part, described catalyst ejector part
It is arranged on described catalyst arm, and be located inside described cracking room；Preferably, described catalyst arm is multiple and along institute
The length direction stating catalyst supervisor is arranged parallel to each other, and catalyst arm is arranged on the interlayer of described heat accumulation type radiant tube；Excellent
Choosing, described catalyst ejector part includes catalyst ejection passage 17 and the nozzle being arranged on described catalyst ejection passage,
It is provided with regulating valve it is preferred that being furnished with catalyst ejection passage around the indoor every radial canal of cracking on described nozzle.
According to embodiment of the present utility model, the species of the catalyst of employing, particle diameter and consumption are not particularly limited, ability
Field technique personnel can flexibly select as needed.In some embodiments of the present utility model, catalyst can adopt catalyst
Can be used in mixed way using one or more of dolomite, Ni base catalyst or Fe base catalyst；The particle diameter of catalyst can be
It is not more than 0.5 millimeter.Thus, catalytic efficiency is higher, puies forward oily degree to the pyrolysis of pyrolysis material higher, pyrolysis oil and pyrolysis gas yield
Higher.
According to specific embodiment of the utility model, as shown in figure 1, described charging aperture is arranged on the roof on pyrolysis chamber top
On, pyrolysis hopper is connected with described charging aperture by the first feed arrangement；The concrete species of the first feed arrangement is not especially limited
System, as long as the pyrolysis material in pyrolysis hopper can be effectively delivered in reactor.In some realities of the present utility model
Apply in example, the first feed arrangement 9 can be rotary feeder or conveying worm.Automatic to pyrolysis material thereby, it is possible to realize
Change conveying, conveying capacity is controlled, and device structure is simple, easy to operate.
According to specific embodiment of the utility model, as shown in figure 1, described reactor further comprises semicoke outlet
330, described semicoke outlet is arranged on the bottom of described pyrolysis chamber, and described semicoke outlet is connected with described semicoke conveyer device 14.
Thus, it is possible to the semicoke obtaining in reactor be conveyed using semicoke conveyer device.The concrete kind of semicoke conveyer device 14
Class is not particularly limited, including but not limited to star or conveying worm.Thereby, it is possible to realize the Automatic Conveying to semicoke,
And conveying capacity is controlled, device structure is simple, easy to operate.
According to specific embodiment of the utility model, as shown in Fig. 2 described inside reactor has multilamellar along described reactor
Short transverse be arranged in heat accumulation type radiant tube within described pyrolysis chamber and described cracking room, every layer of heat accumulation type radiant tube is permissible
Heat accumulation type radiant tube including multiple parallel to each other and horizontally spaced distribution.According to embodiment of the present utility model, institute
State pyrolysis chamber and cracking interior and distributed at least one described heat accumulation type radiant tube respectively it is preferred that described at least one accumulation of heat
Formula radial canal is uniformly distributed.Heat accumulation type radiant tube can heat effective for the oil gas indoor to pyrolysis material and cracking, makes
It is pyrolyzed and cracking reaction, specifically, can be passed through combustible gas and air into heat accumulation type radiant tube, so that combustible gas is burnt
Realize the heating function to pyrolysis material.This equipment adopts heat accumulation type radiant tube heating technique, without gas, solid heat carrier heating, heat
Vent one's spleen and will not be diluted, calorific value is high, and reactor temperature is evenly distributed, surface temperature difference is little, and exhaust gas temperature is low, the thermal efficiency is high,
System process is simplified, response system structure is simple, easy to operate while the thermal efficiency that improve reactor.
In described reactor, pyrolysis material moves from top to bottom, and in described reactor, the heat accumulation type radiant tube of setting is permissible
Pyrolysis material is broken up makes it be uniformly distributed, and pyrolysis material stops 1-50 minute in the reactor from top to bottom, and is heated to 500-600
℃.According to embodiment of the present utility model, the shape of heat accumulation type radiant tube is not particularly limited, in some realities of the present utility model
Apply in example, can be cylinder, thus be conducive to being pyrolyzed breaing up of material, realize uniform point in the reactor of mixed pyrolysis material
Dissipate.Preferably, radial canal adopts the round tube of DN200-300, and the level interval of radial canal is 200-500mm, and vertical interval is
200-700mm, the radial canal number of plies is 10-25 layer, and reactor width is 2-6m, and height for reactor is 3-20m.In addition, heat accumulating type
Radial canal can be controlled in 450- by gas control valve for the unidirectional heat accumulation type radiant tube being evenly arranged, the temperature of tube wall
1000 DEG C of scopes, heat accumulation type radiant tube can take the combustion system of regular commutation so that the surface of single heat accumulation type radiant tube
The temperature difference only has 30 DEG C about, does not have area of localized hyperthermia, thus, is conducive to improving the thermal efficiency.
According to specific embodiment of the utility model, described reactor be provided with fuel gas inlet 322, air intake 321 and
Exhanst gas outlet 311, wherein, fuel gas inlet and exhanst gas outlet are connected with heat accumulation type radiant tube respectively, are respectively used to be passed through combustible gas
With discharge flue gas, air intake is connected with source of the gas and heat accumulation type radiant tube respectively, and the air for producing source of the gas is passed through accumulation of heat
In formula radial canal.
According to embodiment of the present utility model, as shown in figure 1, this synthesis gas system may further include：Loading hopper 1；
The second feed arrangement being connected with loading hopper；It is connected with the exhanst gas outlet 311 of the second feed arrangement and heat accumulation type radiant tube respectively
Drying device 2；The gas-solid separating device 4 being connected with drying device and pyrolysis hopper 5 respectively；It is connected with gas-solid separating device
Exhaust gas cleaner 7.Thus, it is possible to the pyrolysis material in loading hopper be added in drying device by the second feed arrangement, dry
In dry device, pyrolysis material is being dried in the presence of the flue gas (temperature is about 150-250 DEG C) of heat accumulation type radiant tube, so
The mixture of dried pyrolysis material and flue gas enters gas-solid separating device afterwards, and (temperature is about 70-130 to separate the flue gas obtaining
DEG C) enter in exhaust gas cleaner and carry out purified treatment, to realize qualified discharge, separate the pyrolysis material obtaining and be delivered to pyrolysis material
In bucket, it is used for carrying out pyrolytic reaction.
According to embodiment of the present utility model, the concrete species of the second pay-off is not particularly limited, as long as being applied to
Pyrolysis material in loading hopper is delivered in drying device.In some embodiments of the present utility model, the second feeding dress
Putting can be star feeder or feed screw.Thereby, it is possible to realize the Automatic Conveying to pyrolysis material, and conveying capacity can
Control, device structure is simple, easy to operate.
According to embodiment of the present utility model, the concrete species of drying device 2 is not particularly limited, if be capable of right
The drying of pyrolysis material and the function of preheating.In some embodiments of the present utility model, drying device 2 can be riser
Exsiccator 2, thus, pyrolysis material is dried in the presence of flue gas and is lifted, the mixture of dried pyrolysis material and flue gas
Discharge riser exsiccator, be conducive to subsequent step to carry out.In drying device, while pyrolysis material is dried, also
Achieve the function of preheating, be conducive to improving speed and the efficiency of follow-up pyrolytic reaction, and using heat accumulation type radiant tube discharge
Flue gas is dried to pyrolysis material and preheats the comprehensive utilization it is achieved that heat energy, effectively reduces energy consumption, has reached energy-conserving and environment-protective
Purpose.
According to embodiment of the present utility model, the concrete species of gas-solid separating device 4 is not particularly limited, as long as can be by
Pyrolysis material separates with flue gas.In some embodiments of the present utility model, gas-solid separating device 4 can divide for whirlwind is dried
From device 4, thus, it is possible to quickly and efficiently pyrolysis material and flue gas be carried out separating, and good separating effect, simple to operation, become
This is relatively low.
According to embodiment of the present utility model, can also be further between gas-solid separating device 4 and exhaust gas cleaner 7
It is provided with tail gas air-introduced machine 6, tail gas air-introduced machine quickly and efficiently can will separate the flue gas conveying obtaining in gas-solid separating device
To exhaust gas cleaner, be conducive to improving work efficiency.
According to embodiment of the present utility model, this pyrolysis plant is also provided with the chimney being connected with exhaust gas cleaner
8, the flue gas after exhaust gas cleaner purified treatment empties through chimney, thus, is conducive to environmental protection, reduces pollution.
According to embodiment of the present utility model, as shown in figure 1, this synthesis gas system further includes combustion gas pressure fan 12,
Wherein, one end of described combustion gas pressure fan is connected with the outlet of described spray column, the combustion of the other end and described heat accumulation type radiant tube
Gas entrance 322 connects.Thus, the fuel gas inlet of the radial canal of pyrolysis reactor sent into by a part of combustible gas through combustion gas pressure fan
322.
According to embodiment of the present utility model, as shown in figure 1, this synthesis gas system further includes combustion gas air-introduced machine 11,
Wherein, described combustion gas air-introduced machine is arranged between described spray column and described reburner.The outlet of spray column and combustion gas air-introduced machine
Entrance connects, and the outlet of combustion gas air-introduced machine is connected with reburner entrance, and conversion outlet of still is connected with fuel cartridge entrance.
In other side of the present utility model, this utility model provides one kind and carries out coal using foregoing system
Pyrolysis and the method for catalytic pyrolysiss production of synthetic gas.According to embodiment of the present utility model, the method may comprise steps of：
A. particulate coal is added in reactor by charging aperture, completes to be pyrolyzed in the pyrolysis chamber of described reactor
Journey.Wherein, described particulate coal is added to reactor from the charging aperture on reactor top, and is radiated by the heat accumulating type in reactor
Pipe is broken up, and pyrolysis char is discharged from the semicoke outlet of reactor bottom, and through semicoke conveyer device（Preferably conveying worm）Row
Go out.
According to specific embodiment of the utility model it is adaptable to the particle diameter of the coal of this synthesis gas system process is not especially limited
System, can also be able to be small-particle coal for lumped coal, in some preferred embodiments of the present utility model, this synthesis gas system is adopted
With particle diameter 10mm particles below coal, thus, it is possible to make full use of little particle pyrolysis material, resource utilization is high, and can solve the problem that
Bulk deposition pollutes the problem of environment.
According to embodiment of the present utility model, in the pyrolysis chamber of reactor, the heat accumulation type radiant tube of setting can be by particulate coal
Break up and so that it is uniformly distributed, particulate coal stops 1-50 minute in the reactor from top to bottom, and particulate coal is by reactor pyrolysis chamber
Heat accumulation type radiant tube be heated to 500-600 DEG C, specifically, can by gas valve control heat accumulation type radiant tube tube wall temperature
For 500-700 DEG C, particulate coal is heated to rapidly 500-600 DEG C in the reactor, completes pyrolytic process.
B. it is pyrolyzed the oil gas of generation, by the communication member of setting on the heat-insulated brick wall of described reactor, enter into described anti-
Answer the cracking room of device.
According to embodiment of the present utility model, heat-insulated brick wall is arranged in reactor it is preferred that to be located at reactor laterally wide
At the 2/3 of degree, the thickness of heat-insulated brick wall is 5-15cm, heat-insulated brick wall vertically through in reactor, by the inside of reactor
Space is separated into pyrolysis chamber and cracking room, and this structure makes to be provided with pyrolysis chamber and cracking room in a body of heater, and is produced from pyrolysis chamber
Raw oil gas, can enter cracking room and carry out Deep catalytic cracking, the tar molecules of macromole are cracked into the gaseous state of small molecule
Hydro carbons, and by way of catalytic pyrolysiss, the substantial amounts of hydrogen-rich gas of output is so that combustion gas quality is high.Thus, can in a body of heater
Carry out two kinds of operations, unite two into one, save construction cost and floor space.According to embodiment of the present utility model, communication member
Can be for being arranged on pore area or the heat-insulated brick wall longitudinal length in the multiple holes of inclusion on heat-insulated brick wall, positioned at bottom
The opening of position.Specifically, the oil gas that pyrolysis produces, by pore area or the opening of reactor heat-insulated brick wall bottom, enters into
Cracking room.
C. the oil gas being pyrolyzed generation enters into described cracking interior, and catalyst is sprayed on described by catalyst-adding device
In cracking room, pyrolysis oil gas completes catalytic pyrolysis process in described cracking interior, produces cracking gas.
According to embodiment of the present utility model, described cracking interior distributed at least one described heat accumulation type radiant tube, excellent
Choosing, described at least one heat accumulation type radiant tube is uniformly distributed.Heat accumulation type radiant tube can be effective for the oil indoor to cracking
Gas is heated so as to be carried out cracking reaction.Specifically, the oil gas that pyrolysis produces is radiated by the heat accumulating type in reactor cracking room
Pipe is heated to 600-900 DEG C, specifically, can be 600-900 DEG C by the temperature that gas valve controls heat accumulation type radiant tube tube wall,
Particulate coal is heated to rapidly 600-900 DEG C in the reactor.According to embodiment of the present utility model, around every radial canal
It is furnished with catalyst ejection passage, the catalyst of particle diameter≤0.5mm is equably sprayed in cracking room by catalyst ejection passage.
Preferably, catalyst ejection passage adopts the round tube of DN30-80, and catalyst is blown into every layer of catalysis by catalyst supervisor
In agent arm, every layer of catalyst arm separates 4-15 root pipeline, so that catalyst is uniformly sprayed by catalyst ejector part
In cracking room.According to embodiment of the present utility model, catalyst can be using in dolomite, Ni base catalyst or Fe base catalyst
One or more be used in mixed way.Pyrolysis oil gas is heated to 600-900 DEG C in cracking interior, completes catalytic pyrolysis process.By
This, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, and orient the substantial amounts of hydrogen-rich gas of output, combustion gas quality
Height, colleague avoids the problem of pyrolysis oil dust-laden, and the clean and effective being truly realized Fossil fuel utilizes.
D. described cracking gas is entered in spray column by cracking gas outlet, carries out purified treatment to described cracking gas.
E. a purified net cracking gas part sends into the fuel gas inlet of heat accumulation type radiant tube, net cracking through combustion gas pressure fan
Gas another part sends into reburner through combustion gas air-introduced machine, and in described reburner, in cracking gas, methane and many carbon hydrocarbon are converted into one
Carbonoxide and Hydrogen synthesis gas；
F. described synthesis gas enters in fuel cartridge and stores.
Embodiment one：
（1）The particulate coal being crushed to granularity≤10mm enters riser exsiccator 2 by loading hopper 1, is dried in riser
In device, the 150-250 DEG C of flue gas using the radial canal smoke outlet from thermal storage type moving bed reactor 3 is done to coal
Dry and lifting, coal enter cyclone separator 4 is dried, the coal dust separating enter into pyrolysis hopper 5 in, 70-130 DEG C about
Flue gas is then admitted to exhaust gas cleaner 7 through tail gas air-introduced machine 6, reaches the flue gas after discharge standard and discharges through chimney 8.
（2）Coal enters thermal storage type moving bed reactor 3, moving-burden bed reactor 3 through rotary feeder 9 in pyrolysis hopper 5
Pyrolysis chamber and cracking room are divided into by grid brick wall.
（3）It has been evenly arranged unidirectional heat accumulation type radiant tube, tube wall temperature is controlled 500 using gas control valve in pyrolysis chamber
～700 DEG C of scopes, material stops 1-40 minute in the reactor from top to bottom, and is heated to 500～600 DEG C, completes to be pyrolyzed
Journey.
（4）The oil gas that pyrolysis produces, by the opening of reactor lower part grid brick wall, enters into cracking room, in cracking room
It has been evenly arranged unidirectional heat accumulation type radiant tube, tube wall temperature controls in 600～900 DEG C of scopes using gas control valve, at every
It is furnished with catalyst ejection passage, the catalyst of particle diameter≤0.5mm is equably sprayed by catalyst ejection passage 17 around radial canal
Spill in cracking room, pyrolysis oil gas is heated to 600-900 DEG C in cracking interior, completes catalytic pyrolysis process, Jiao of macromole
Oil molecule is cracked into the gaseous hydrocarbons of small molecule, produce substantial amounts of hydrogen-rich gas, it is to avoid produce the problem of pyrolysis oil dust-laden, very
The clean and effective just achieving coal utilizes.Catalyst can using one of dolomite, Ni base catalyst or Fe base catalyst or
Several it is used in mixed way.
（5）Cracking gas passes through reactor outlet, enters in spray column 10 and washs, and the net cracking gas after washing is blown through combustion gas
Reburner 13 sent into by machine 11, and in reburner 13 cracking gas, methane and minority many carbon hydrocarbon are converted into carbon monoxide and hydrogen synthesis
Gas, synthesis gas enters in fuel cartridge 15 and stores, and can produce the multiple products such as methanol, ethylene glycol, acetic acid.
（6）Sub-fraction combustible gas sends into the radial canal fuel gas inlet of pyrolysis reactor 3 through combustion gas pressure fan 12.
（7）The semicoke that pyrolysis of coal produces is discharged by conveying worm 14, and semicoke can be used for combustion power generation or makes moulded coal.
Inventor finds, simple according to the synthesis gas system structure of this utility model embodiment, easy to operate, Temperature Distribution
Uniformly, heats are good.This response system can be pyrolyzed and be cracked two kinds of operations, the oil gas that pyrolysis chamber produces, and can enter
Cracking room carries out deep pyrolytic, the tar molecules of macromole is cracked into the gaseous hydrocarbons of small molecule, and by catalytic pyrolysiss
Mode, produces hydrogen in a large number.This response system produces substantial amounts of cracking gas, enters in reburner, can be by methane and the many carbon of minority
Gaseous hydrocarbons are carbon monoxide and hydrogen, and synthesis gas can do industrial basic synthetic raw gas, produces various methanol, second two
Alcohol, acetate products.This system obviates the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized coal utilizes.Additionally,
Two kinds of operations can be carried out in one body of heater, unite two into one, save construction cost and floor space.And, system that employs storage
Hot type radial canal heating technique, without gas, solid heat carrier heating, simplifies system work while the thermal efficiency that improve reactor
Skill.
Using this utility model pyrolysis of coal and catalytic pyrolysiss production of synthetic gas system, brown coal are processed, the basic number of raw material
According to being shown in Table 1.
Table 1：Brown coal basic data
Process brown coal using this system, the factor of created gase obtaining is up to 25%, far above the product obtained by the pyrolysis of laboratory aluminum rice steamer
Gas rate, pyrolytic tar almost all is cracked into gaseous products, and factor of created gase is high.In cracking gas, hydrogen content is 45%, and quality is high.Close
Gas purity is become to reach more than 95%.
It is to be understood that term " first ", " second " are only used for describing purpose in description of the present utility model, and
It is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define
The feature of " first ", " second " can be expressed or implicitly include one or more this feature.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be
It is mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning in this utility model for the above-mentioned term.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State that be not necessarily referring to is identical embodiment or example.And, the specific features of description, structure, material or feature can be
Combine in an appropriate manner in any one or more embodiments or example.Additionally, in the case of not conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered
Row combines and combines.
Although of the present utility model embodiment has been shown and described above it is to be understood that above-described embodiment is
Exemplary it is impossible to be interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
Interior above-described embodiment can be changed, change, replacing and modification, simultaneously for one of ordinary skill in the art, foundation
The thought of the application, all will change in specific embodiments and applications.
Claims (6)
1. a kind of pyrolysis of coal and catalytic pyrolysiss production of synthetic gas system are it is characterised in that include：
Pyrolysis hopper；
First feed arrangement, described first feed arrangement is connected with described pyrolysis hopper；
Pyrolysis and cracking reactor, including：Charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, described charging aperture is arranged on institute
State on the roof of pyrolysis chamber, described cracking gas outlet is arranged on the side wall of described cracking room；And：
Heat accumulation type radiant tube, described heat accumulation type radiant tube along described reactor short transverse multi-tier arrangement in described pyrolysis chamber and
Inside described cracking room, every layer has the many described heat accumulation type radiant tubes arranged in the horizontal direction；
Heat-insulated brick wall, described heat-insulated brick wall is arranged at the 2/3 of described reactor transverse width, vertically through in described reaction
In device, the inner space of described reactor is separated into described pyrolysis chamber and described cracking room；
Catalyst-adding device, it is connected with described cracking room, for putting on catalyst for cracking in described cracking room；Its
In, described catalyst-adding device includes：Catalyst hooper；Catalyst is responsible for, and described catalyst is responsible for and described catalyst material
Bucket is connected；Catalyst arm, described catalyst arm is connected with described catalyst supervisor, and described catalyst arm passes through described
The wall of reactor cracking room simultaneously extends to inside described cracking room；At least one catalyst ejector part, described catalyst ejector part
It is arranged on described catalyst arm, and be located inside described cracking room；Described catalyst arm is multiple and along described catalysis
The length direction of agent supervisor is arranged parallel to each other, and catalyst arm is arranged on the interlayer of described heat accumulation type radiant tube；Described catalysis
Agent jet member includes catalyst ejection passage and the nozzle being arranged on described catalyst ejection passage, and described nozzle is provided with
Regulating valve；
Communication member, described communication member is arranged on the bottom of described heat-insulated brick wall, for the oil gas producing described pyrolysis chamber,
By described communication member, it is passed into described cracking room；
Spray column, described spray column is connected with the outlet of described cracking gas；
Reburner, described reburner is connected with described spray column；
Fuel cartridge, described fuel cartridge is connected with described reburner.
2. system according to claim 1 is it is characterised in that described communication member is to be arranged on described heat-insulated brick wall
Pore area including multiple holes；Or described communication member is on described heat-insulated brick wall longitudinal length, positioned at the opening of lower position.
3. system according to claim 2 it is characterised in that described heat-insulated brick wall thickness be 5-15cm, described pore area
Height be 3-15cm, a diameter of 1-3cm in described hole, the height of described opening is 3-15cm.
4. the system according to any one of claim 1-3 is it is characterised in that further include combustion gas pressure fan and combustion gas
Air-introduced machine, wherein, one end of described combustion gas pressure fan is connected with the outlet of described spray column, and the other end is radiated with described heat accumulating type
The fuel gas inlet of pipe connects；Described combustion gas air-introduced machine is arranged between described spray column and described reburner.
5. the system according to any one of claim 1-3 is it is characterised in that also include loading hopper；Second feed arrangement,
It is connected with described loading hopper；Drying device, its respectively with described second feed arrangement and described heat accumulation type radiant tube on cigarette
Gas outlet connects；Gas-solid separating device, it is connected with described drying device and described pyrolysis hopper respectively；Tail gas clean-up fills
Put, it is connected with described gas-solid separating device.
6. the system according to any one of claim 1-3 is it is characterised in that described pyrolysis hopper enters by described first
Material device is connected with described charging aperture, further includes that semicoke exports, and described semicoke outlet is arranged on the bottom of described pyrolysis chamber,
Described semicoke outlet is connected with described semicoke conveyer device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456537.3U CN205974375U (en) | 2016-05-19 | 2016-05-19 | Syngas system is produced to pyrolysis of coal and catalytic cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456537.3U CN205974375U (en) | 2016-05-19 | 2016-05-19 | Syngas system is produced to pyrolysis of coal and catalytic cracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205974375U true CN205974375U (en) | 2017-02-22 |
Family
ID=58019620
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620456537.3U Expired - Fee Related CN205974375U (en) | 2016-05-19 | 2016-05-19 | Syngas system is produced to pyrolysis of coal and catalytic cracking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205974375U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105820828A (en) * | 2016-05-19 | 2016-08-03 | 北京神雾环境能源科技集团股份有限公司 | System for generating synthesis gas through coal pyrolysis and catalytic cracking |
| CN108996473A (en) * | 2018-08-24 | 2018-12-14 | 宁波吉宏醇氢动力技术有限公司 | cracker and vehicle |
-
2016
- 2016-05-19 CN CN201620456537.3U patent/CN205974375U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105820828A (en) * | 2016-05-19 | 2016-08-03 | 北京神雾环境能源科技集团股份有限公司 | System for generating synthesis gas through coal pyrolysis and catalytic cracking |
| CN108996473A (en) * | 2018-08-24 | 2018-12-14 | 宁波吉宏醇氢动力技术有限公司 | cracker and vehicle |
| CN108996473B (en) * | 2018-08-24 | 2023-08-22 | 宁波吉宏醇氢动力技术有限公司 | Cracker and vehicle |
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Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing City, Changping District Changping District Machi Town kamis Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
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Denomination of utility model: System for generating synthesis gas through coal pyrolysis and catalytic cracking Effective date of registration: 20180327 Granted publication date: 20170222 Pledgee: Tianfeng Securities Co.,Ltd. Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000230 |
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