CN205974386U - Oil shale pyrolysis and cracking system - Google Patents
Oil shale pyrolysis and cracking system Download PDFInfo
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- CN205974386U CN205974386U CN201620456517.6U CN201620456517U CN205974386U CN 205974386 U CN205974386 U CN 205974386U CN 201620456517 U CN201620456517 U CN 201620456517U CN 205974386 U CN205974386 U CN 205974386U
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Abstract
The utility model belongs to the technical field of the oil shale pyrolysis, concretely relates to granule oil shale pyrolysis and cracking system based on the regenerative radiant tube heating, this system includes: parts such as pyrolysis hopper, a feed arrangement, pyrolysis and cracking reactor, spray column and gas jar, wherein, pyrolysis and cracking reactor be including feed inlet, pyrolysis chamber, splitting chamber and cracked gas outlet, and: regenerative radiant tube, thermal -insulated brick wall and communication member. This reaction system simple structure, convenient operation, the distribution of temperature is even, heats effectually, and oil gas that the pyrolysis chamber produced can carry out deep cracking at splitting chamber, and the burnt oil molecules schizolysis of macromolecule be the gaseous hydrocarbons of micro molecule, and this reaction system can produce a large amount of cracking gas products, has avoided the problem of pyrolysis oil dust -laden, has really realized fossil fuel's clean high -efficient utilization.
Description
Technical field
This utility model belong to oil shale pyrolysis technical field and in particular to a kind of based on heat accumulation type radiant tube heating
Grain oil shale pyrolysis and cracking system, are used for producing cleaning combustible gas.
Background technology
World petroleum resource is in short supply at present, increasingly reduces, and China is more so it is necessary to rely on substantial amounts of imported crude oil, this relation
To the national economic development and national energy security problem.However, China has very abundant oil shale resources, current China
Pyrolysis shale oil yield ranks first in the world, and has the trend increasing year by year.The existing oil shale retorting type of furnace is mainly comforted
Along stove, three river gas combustion side stoves, Petro Se Kesi (Petrosix) stove of Brazil, the Ge Luote of Ai Shaniya（Galoter）
ATP stove of stove and Australia etc..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 powdery oil shale, contain a large amount of dirt in pyrolysis oil, cause pyrolysis oil to be difficult to effectively utilizes,
The problems such as pyrolysis oil value is high.Therefore, how to design all simple system of a kind of high-effective dust-removing, system structure and technological process
Become the problem of this area urgent need to resolve.
Utility model content
This utility model is directed to the deficiencies in the prior art, design and develop a kind of pyrolysis of oil shale heat accumulating type down-flow fluidized bed using ECT and
Cracking reaction 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 carries out deep pyrolytic, the tar molecules of macromole is cracked into the gaseous hydrocarbons of small molecule, and this reactor can produce substantial amounts of
Cracking gas, thus avoiding the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized oil shale utilizes.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：
In view of this, this utility model provides a kind of oil shale pyrolysis and cracking system.According to reality of the present utility model
Apply 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
On the roof of room, described cracking gas outlet is arranged on the side wall of described cracking room, and：Heat accumulation type radiant tube, described accumulation of heat
Formula radial canal along described pyrolysis reactor short transverse multi-tier arrangement inside described pyrolysis chamber and described cracking room, every layer tool
There are the many described heat accumulation type radiant tubes arranged in the horizontal direction；Heat-insulated brick wall, it is horizontal that described heat-insulated brick wall is arranged on 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；Communication member, described communication member is arranged on the bottom of described heat-insulated brick wall, for the oil producing pyrolysis chamber
Gas, by described communication member, is passed into described cracking room；Spray column, described spray column is connected with the outlet of described cracking gas；Combustion
Gas tank, described fuel cartridge is connected with described spray column.
Inventor finds, simple according to this response system structure of this utility model embodiment, easy to operate, Temperature Distribution
Uniformly, heats are good, the oil gas that pyrolysis chamber produces, and can carry out deep pyrolytic, the tar molecules cracking of macromole in cracking room
For the gaseous hydrocarbons of small molecule, this response system can produce substantial amounts of cracking gas product, it is to avoid the problem of pyrolysis oil dust-laden, very
The clean and effective just achieving Fossil fuel utilizes.Additionally, two kinds of operations can be carried out in a body of heater, unite two into one, shale profit
High with rate, save construction cost and floor space.And this reactor employs heat accumulation type radiant tube heating technique without gas, solid
Heat carrier heats, and simplifies system process while the thermal efficiency that improve reactor.
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.
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.
According to embodiment of the present utility model, described communication member is on described heat-insulated brick wall longitudinal length, positioned at bottom
The opening of position is it is preferred that the height of described opening is 3-15cm.
According to embodiment of the present utility model, this system may further include：Gasification furnace, described gasification furnace one end and institute
The fuel gas inlet stating heat accumulation type radiant tube is connected, and the other end is connected with described semicoke conveyer device.
According to embodiment of the present utility model, this system can further include：Loading hopper；Second feed arrangement, its
It is connected with described loading hopper；Drying device, its respectively with described second feed arrangement and described heat accumulation type radiant tube on flue gas
Outlet connects；Gas-solid separating device, it is connected with described drying device and described pyrolysis hopper respectively；Exhaust gas cleaner,
It is connected with described gas-solid separating device.
According to embodiment of the present utility model, described pyrolysis hopper is by described first feed arrangement and described charging aperture phase
Even；Further comprise semicoke outlet, it is arranged on the bottom of described pyrolysis chamber, described semicoke outlet and described semicoke conveying dress
Put connection.
In other side of the present utility model, this utility model provides one kind and carries out heat using foregoing system
Solution and the method for cracking.According to embodiment of the present utility model, the method comprises the following steps：A. Oil Shale Particles are passed through institute
State the first feed arrangement and described charging aperture is added in described reactor, in the described pyrolysis chamber of described reactor, complete heat
Solution preocess；B. it is pyrolyzed the described communication member by setting on the heat-insulated brick wall of described reactor for the oil gas of generation, enter into described
The described cracking room of reactor；C. the oil gas being pyrolyzed generation enters into described cracking interior, completes cracking process, produces cracking
Gas；D. described cracking gas is entered in described spray column by described cracking gas outlet, carries out purified treatment to described cracking gas；
E. the net cracking gas through purifying enters in described fuel cartridge and stores.
According to embodiment of the present utility model, in described step a, described Oil Shale Particles are from the institute on described reactor top
State charging aperture to be added in described reactor, and broken up by the described heat accumulation type radiant tube in described reactor, pyrolysis char from
The semicoke outlet of described reactor bottom is discharged;In described step a, described Oil Shale Particles are by described reactor pyrolysis chamber
Described heat accumulation type radiant tube is heated to 500-600 DEG C, and in described step b, described pyrolysis oil gas is by described reactor cracking room
Described heat accumulation type radiant tube be heated to 650-900 DEG C.
According to embodiment of the present utility model, the granularity of described Oil Shale Particles is below 20mm.
This utility model at least has the advantages that：
1）System response device is divided into pyrolysis chamber and cracking room, the oil gas that pyrolysis chamber produces, and can carry out depth in cracking room and split
Solution, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, and this response system can produce substantial amounts of cracking gas product, keeps away
Exempt from the problem of pyrolysis oil dust-laden, the clean and effective being truly realized Fossil fuel utilizes；
2）System takes heat accumulation type radiant tube moving bed process, and response system structure is simple, and easy to operate, Temperature Distribution is equal
Even, heats are good；
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）20mm particles below oil shale can be processed, shale utilization rate is high, be suitable to promote.
Brief description
Fig. 1 is the structure chart of this utility model pyrolysis and cracking system.
Fig. 2 is the structure of reactor figure of this utility model pyrolysis and cracking system.
Fig. 3 is the front view of the heat-insulated brick wall of this utility model.
Wherein, 1, loading hopper；2nd, pneumatic conveyer dryer；3rd, thermal storage type moving bed reactor；4th, cyclone separator is dried；5th, heat
Solution hopper；6th, tail gas air-introduced machine；7th, exhaust gas cleaner；8th, chimney；9th, feeding screw；10th, spray column；11st, combustion gas air inducing
Machine；12nd, fuel cartridge；13rd, gasification furnace；14th, conveying worm；15th, heat accumulation type radiant tube；16th, heat-insulated brick wall；17th, communication member；
18th, pyrolysis chamber；19th, cracking room；20th, cracking gas outlet；21st, charging aperture；22nd, fuel gas inlet；23rd, exhanst gas outlet；24th, air enters
Mouthful；25th, semicoke outlet.
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.
This utility model provides a kind of oil shale pyrolysis and cracking system.According to embodiment of the present utility model, reference
Shown in Fig. 1, this system includes：Pyrolysis hopper 5；First feed arrangement 9, described first feed arrangement is with described pyrolysis hopper 5 even
Connect；Pyrolysis and cracking reactor 3, it includes：Charging aperture 21, pyrolysis chamber 18, cracking room 19, cracking gas outlet 20, heat accumulating type spoke
Penetrate pipe 15, heat-insulated brick wall 16 and communication member 17, wherein, described charging aperture is arranged on the roof of described pyrolysis chamber, described split
Outlet of venting one's spleen is arranged on the side wall of described cracking room, and described heat-insulated brick wall, will be described vertically through in described reactor
The inner space of reactor is separated into described pyrolysis chamber and described cracking room, and described communication member is arranged on described heat-insulated brick wall
Bottom, for the oil gas producing pyrolysis chamber, by described communication member, is passed into described cracking room；Spray column 10, described spray
Drench tower to be connected with the outlet of described cracking gas；Fuel cartridge 12, described fuel cartridge is connected with described spray column.
Inventor finds, simple according to this response system structure of this utility model embodiment, easy to operate, Temperature Distribution
Uniformly, heats are good, the oil gas that pyrolysis chamber produces, and can carry out deep pyrolytic, the tar molecules cracking of macromole in cracking room
For the gaseous hydrocarbons of small molecule, this response system can produce substantial amounts of cracking gas product, it is to avoid the problem of pyrolysis oil dust-laden, very
The clean and effective just achieving Fossil fuel utilizes.Additionally, two kinds of operations can be carried out in a body of heater, unite two into one, shale profit
High with rate, save construction cost and floor space.And this reactor employs heat accumulation type radiant tube heating technique without gas, solid
Heat carrier heats, and simplifies system process while the thermal efficiency that improve reactor.
According to specific embodiment of the utility model it is adaptable to the particle diameter of the oil shale of this reactor is not particularly limited,
In some preferred embodiments of the present utility model, the oil shale that this reactor adopts is particle diameter 20mm particles below and powdery
Fossil fuel, thus, it is possible to make full use of granule wax shale, resource utilization is high, and can solve the problem that bulk deposition pollution ring
The problem in border.
According to specific embodiment of the utility model it is adaptable to the type of furnace of this system is not particularly limited, it can be accumulation of heat
Formula moving bed 3 can also be other types, such as non-heat accumulating type or non-moving type etc., as long as can dividing by heat-insulated brick wall integration
It is segmented into pyrolysis chamber and cracking room.
According to specific embodiment of the utility model, with reference to shown in Fig. 2, inside reactor has along described pyrolysis reactor
Heat accumulation type radiant tube within described pyrolysis chamber and described cracking room for the short transverse multi-tier arrangement, every layer of heat accumulation type radiant tube tool
There are many heat accumulation type radiant tubes, and horizontally spaced arrangement.According to embodiment of the present utility model, described pyrolysis chamber and splitting
Solution interior distributed at least one described heat accumulation type radiant tube respectively it is preferred that described at least one heat accumulation type radiant tube is uniform
Distribution.Heat accumulation type radiant tube can be heated effective for the oil gas indoor to pyrolysis material and cracking so as to carried out pyrolysis and
Cracking reaction, specifically, can be passed through combustible gas and air into heat accumulation type radiant tube, so that combustible gas is burnt and realize to pyrolysis material
Heating function.This reactor employs heat accumulation type radiant tube heating technique without gas, solid heat carrier heating, and Temperature Distribution is equal
Even, heats are good, and response system structure is simple, easy to operate, simplifies system while the thermal efficiency that improve reactor
Technique.
In the reactor, oil shale moves from top to bottom, the unidirectional heat accumulating type radiation being evenly arranged of setting in pyrolysis chamber
Oil shale can be broken up by pipe makes it be uniformly distributed, and oil shale stops 1-50 minute in the reactor from top to bottom, and is heated to
500-600 DEG C, tube wall temperature is controlled in 500～700 DEG C of scopes using gas control valve, completes pyrolytic process, and pyrolysis produces
Oil gas, by the opening of reactor lower part checker brick, enters into cracking room, is provided with the unidirectional accumulation of heat being evenly arranged in cracking room
Formula radial canal, and it is heated to 650-900 DEG C, tube wall temperature is controlled in 650～900 DEG C of scopes using gas control valve, completes to split
Solution preocess, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, produce substantial amounts of cracking gas, it is to avoid pyrolysis oil contains
The problem of dirt, the clean and effective being truly realized oil shale utilizes.According to embodiment of the present utility model, heat accumulation type radiant tube
Shape is not particularly limited, and in some embodiments of the present utility model, can be cylinder, thus be conducive to beating of oil shale
Dissipate, realize mixing oil shale in the reactor dispersed.
According to specific embodiment of the utility model, heat-insulated brick wall is arranged in reactor it is preferred that being located at reactor horizontal stroke
To at the 2/3 of width, the thickness of heat-insulated brick wall is 5-15cm, heat-insulated brick wall vertically through in reactor, by reactor
Inner 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, pyrolysis
The oil gas that room produces, can enter cracking room and carry out deep pyrolytic, 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 communication member is not particularly limited, as long as can be by
Pyrolysis chamber connects with cracking room, thus the oil gas that pyrolysis chamber is produced is passed into cracking room.More of the present utility model
In embodiment, 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
Be arranged on the pore area of the inclusion porous on heat-insulated brick wall, under preferable case, the height of described pore area is 3-15cm, described hole straight
Footpath is 1-3cm.Communication member can also be on heat-insulated brick wall longitudinal length, positioned at the opening of lower position, under preferable case, institute
The height stating opening is 3-15cm.
According to embodiment of the present utility model, this system may further include：Combustion gas with heat accumulation type radiant tube respectively
The gasification furnace that entrance is connected with semicoke conveyer device.Thus, it is possible to using semicoke conveyer device, pyrolysis in pyrolysis chamber is produced
Semicoke is delivered in gasification furnace, carries out gasification process to semicoke, and to obtain combustible gas and lime-ash, the combustible gas obtaining can be passed through
In heat accumulation type radiant tube, it is passed through air in heat accumulation type radiant tube simultaneously, so that combustible gas is burnt and the material in pyrolysis chamber is carried out
Heating.Thus, it is possible to sufficiently be utilized to semicoke, do not cause to waste, good economy performance.
According to specific embodiment of the utility model, described reactor is provided with fuel gas inlet 22, air intake 24 and cigarette
Gas outlet 23, 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 and row
Go out flue gas, air intake is connected with source of the gas and heat accumulation type radiant tube respectively, the air for producing source of the gas is passed through heat accumulating type spoke
Penetrate in pipe.
According to specific embodiment of the utility model, this system may further include：Loading hopper 1；It is connected with loading hopper
The second feed arrangement 9；It is connected with the exhanst gas outlet 23 on described second feed arrangement and described heat accumulation type radiant tube respectively
Drying device 2；The gas-solid separating device 4 being connected with described drying device and described pyrolysis hopper respectively；Divide with described gas-solid
The exhaust gas cleaner 7 being connected from device.Thus, it is possible to the oil shale in loading hopper be added by the second feed arrangement dry
In dry device, in drying device, oil shale the heat accumulation type radiant tube in pyrolysis chamber flue gas (temperature be about 200～
250 degrees Celsius) in the presence of be dried, then dried oil shale and flue gas mixture enter gas-solid separating device,
Separate the flue gas (temperature is about 70～110 degrees Celsius) obtaining and enter in exhaust gas cleaner and carry out purified treatment, to realize reaching
Mark discharge, separates the pyrolysis material obtaining and is delivered in pyrolysis hopper, be 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
Oil shale in loading hopper is delivered in drying device.In some embodiments of the present utility model, the second feeding dress
Putting can be feeding screw 9.Thereby, it is possible to realize the Automatic Conveying to oil shale, and conveying capacity is controlled, device structure letter
Single, easy to operate.
According to embodiment of the present utility model, the concrete species of drying device is not particularly limited, if be capable of right
The drying of oil shale and the function of preheating.In some embodiments of the present utility model, drying device can be done for air-flow
Dry device 2, thus, oil shale is dried in the presence of flue gas and is lifted, the mixture row of dried oil shale and flue gas
Go out pneumatic conveyer dryer 2, be conducive to subsequent step to carry out.In drying device, while pyrolysis material is dried, also realize
The function of preheating, is conducive to improving and adopts in the speed of follow-up pyrolytic reaction and efficiency, and pyrolysis chamber heat accumulation type radiant tube to arrange
The flue gas going out is dried to oil shale and preheats the comprehensive utilization it is achieved that heat energy, effectively reduces energy consumption, has reached energy-conservation
The purpose of environmental protection.
According to embodiment of the present utility model, the concrete species of gas-solid separating device is not particularly limited, as long as can be by
Oil shale separates with flue gas.In some embodiments of the present utility model, gas-solid separating device 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 set further between gas-solid separating device and exhaust gas cleaner
It is equipped with tail gas air-introduced machine 6, tail gas air-introduced machine can quickly and efficiently be delivered to separating the flue gas obtaining in gas-solid separating device
In 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, this system can also include：Also may be used between spray column 10 and fuel cartridge 12
To be further provided with combustion gas air-introduced machine 11, combustion gas air-introduced machine quickly and efficiently can will pass through what purification obtained in spray column
Natural gas transportation is stored to fuel cartridge, and further, the cracking gas obtaining can be further used for preparing LNG or LNP.
Inventor finds, can significantly improve the yield of cracking gas using this system, have enough gas to be used for producing liquefied natural gas
(LNG) or liquefied petroleum gas (LPG), good in economic efficiency.
According to specific embodiment of the utility model, described pyrolysis hopper is connected with charging aperture by the first feed arrangement；
Further comprise semicoke outlet, it is arranged on the bottom of described pyrolysis chamber, described semicoke outlet and described semicoke conveyer device
Connect.The concrete species of the first feed arrangement is not particularly limited, as long as can be effectively defeated by the oil shale in pyrolysis hopper
Deliver in reactor.In some embodiments of the present utility model, the first feed arrangement can be with feeding screw.Thus,
It is capable of the Automatic Conveying to oil shale, conveying capacity is controlled, and device structure is simple, easy to operate.Semicoke conveyer device
Concrete species be not particularly limited, including but not limited to star or conveying worm, under preferable case, semicoke conveyer is permissible
For conveying worm 14.Thereby, it is possible to realize the Automatic Conveying to semicoke, and conveying capacity is controlled, and device structure is simple, operation
Convenient.
In other side of the present utility model, this utility model provides one kind and carries out heat using foregoing system
Solution and the method for cracking.According to embodiment of the present utility model, the method may comprise steps of：
A. Oil Shale Particles are passed through described first feed arrangement and be arranged on the charging aperture on the roof of described pyrolysis chamber
It is added in reactor, the described pyrolysis chamber of described reactor completes pyrolytic process, pyrolysis char is from reactor bottom
Semicoke outlet is discharged, and discharges through semicoke conveyer device.
According to specific embodiment of the utility model it is adaptable to the particle diameter of the oil shale of this reactor is not particularly limited,
In some preferred embodiments of the present utility model, the oil shale that this reactor adopts is particle diameter 20mm particles below and powdery
Fossil fuel, thus, it is possible to make full use of granule wax shale, resource utilization is high, and can solve the problem that bulk deposition pollution ring
The problem in border.
According to specific embodiment of the utility model, the concrete species of the first feed arrangement is not particularly limited, as long as can
So that the oil shale in pyrolysis hopper to be effectively delivered in reactor.In some embodiments of the present utility model, the
One feed arrangement can be with feeding screw.Thereby, it is possible to realize the Automatic Conveying to oil shale, conveying capacity is controlled, and equipment
Structure is simple, easy to operate.
According to specific embodiment of the utility model, described pyrolysis interior distributed at least one described heat accumulating type radiation
, it is preferred that described at least one heat accumulation type radiant tube is uniformly distributed, specifically, unidirectional heat accumulation type radiant tube can be by oily page for pipe
Rock is broken up makes it be uniformly distributed, and oil shale stops 1-50 minute in the reactor from top to bottom, and is heated to 500-600 DEG C, pipe
Wall temperature is controlled in 500～700 DEG C of scopes using gas control valve, completes pyrolytic process.
According to embodiment of the present utility model, before oil shale is added pyrolysis hopper, can also be in advance to oil shale
It is dried process, it is for instance possible to use the flue gas that heat accumulation type radiant tube is discharged is dried to oil shale and the pre-heat treatment, by
This, can remove the moisture in oil shale, is conducive to improving pyrolysis efficiency.According to embodiment of the present utility model, this pyrolysis side
Method can also include the step carrying out purified treatment to dried flue gas, so that tail gas qualified discharge, reduces environmental pollution.
According to embodiment of the present utility model, the concrete species of semicoke conveyer device is not particularly limited, including but do not limit
In star or conveying worm, under preferable case, semicoke conveyer can be conveying worm.Thereby, it is possible to realize to semicoke
Automatic Conveying, and conveying capacity is controlled, and device structure is simple, easy to operate.
B. it is pyrolyzed the described communication member by setting on the heat-insulated brick wall of described reactor for the oil gas of generation, enter into described
The described cracking room of reactor.
According to specific embodiment of the utility model, heat-insulated brick wall is arranged in reactor it is preferred that being located at reactor horizontal stroke
To at the 2/3 of width, the thickness of heat-insulated brick wall is 5-15cm, heat-insulated brick wall vertically through in reactor, by reactor
Inner 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, pyrolysis
The oil gas that room produces, can enter cracking room and carry out deep pyrolytic, 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 communication member is not particularly limited, as long as can be by
Pyrolysis chamber connects with cracking room, thus the oil gas that pyrolysis chamber is produced is passed into cracking room.More of the present utility model
In embodiment, 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
Be arranged on the pore area of the inclusion porous on heat-insulated brick wall, under preferable case, the height of described pore area is 3-15cm, described hole straight
Footpath is 1-3cm.Communication member can also be on heat-insulated brick wall longitudinal length, positioned at the opening of lower position, under preferable case, institute
The height stating opening is 3-15cm.
C. the oil gas being pyrolyzed generation enters into described cracking interior, completes cracking process, produces cracking gas.
According to specific embodiment of the utility model, described cracking interior distributed at least one described heat accumulating type radiation
Pipe, it is preferred that described at least one heat accumulation type radiant tube is uniformly distributed, specifically, and is heated to 650-900 DEG C, tube wall temperature
Controlled in 650～900 DEG C of scopes using gas control valve, complete thermal cracking processes, the tar molecules of macromole are cracked into little point
The gaseous hydrocarbons of son, produces substantial amounts of cracking gas, it is to avoid the problem of pyrolysis oil dust-laden, and the cleaning being truly realized oil shale is high
Effect utilizes.
D. described cracking gas enters into described spray column by the cracking gas outlet being arranged on the side wall of described cracking room
In, purified treatment is carried out to described cracking gas.
E. the net cracking gas through purifying enters in described fuel cartridge and stores.
According to embodiment of the present utility model, this system can also include：Can also enter between spray column and fuel cartridge
One step is provided with combustion gas air-introduced machine 11, the sky that combustion gas air-introduced machine 11 can quickly and efficiently will obtain through purification in spray column
So gas is delivered in fuel cartridge and is stored, and further, the cracking gas obtaining can be further used for preparing LNG or LNP.Send out
A person of good sense finds, can significantly improve the yield of cracking gas using this system, have enough gas to be used for producing liquefied natural gas
(LNG) or liquefied petroleum gas (LPG), good in economic efficiency.
Inventor finds, according to the method for this utility model embodiment, can process 20mm particles below oil shale,
Shale utilization rate is high, is suitable to promote, and the oil gas that pyrolysis chamber produces, and can carry out deep pyrolytic, the tar of macromole in cracking room
Molecular cleavage is the gaseous hydrocarbons of small molecule, produces substantial amounts of cracking gas product, it is to avoid the problem of pyrolysis oil dust-laden, really real
The clean and effective having showed Fossil fuel utilizes.
Below the specific work process of oil shale pyrolysis of the present utility model and cracking system and method is retouched in detail
State, specific as follows：
First, the raw shale oil of granularity≤20mm is added in loading hopper 1, will be stored in using the second feed arrangement and add
Raw shale oil in hopper 1 adds in pneumatic conveyer dryer 2,200～250 degrees Celsius simultaneously discharging in heat accumulation type radiant tube 15
Flue gas be passed through in pneumatic conveyer dryer 2, raw shale oil is dried in the presence of flue gas and is lifted, then flue gas and raw material
The mixture of oil shale discharges pneumatic conveyer dryer, enters in gas-solid separating device, separate obtain flue gas (temperature is about 70～
110 degrees Celsius) discharge gas-solid separating device 4, and enter exhaust gas cleaner 7 in the presence of tail gas air-introduced machine 6, carry out net
Change is processed, and purifies the flue gas meeting discharge standard obtaining and empties through chimney 8, separates the raw oil obtaining in gas-solid separating device
Shale discharges gas-solid separating device, and enters in pyrolysis hopper, then will be stored in pyrolysis material using the first pay-off 9
Raw shale oil adds in pyrolysis reactor, moves from top to bottom, stops about 1～50 minute, in the heat accumulating type spoke being uniformly arranged
Penetrate pipe (tube wall temperature be about 500～700 degrees Celsius) break up with heat effect under, oil shale thermally equivalent is warming up to 500～
600 degrees Celsius, complete pyrolytic reaction, obtain being pyrolyzed oil gas and semicoke, the pyrolysis oil gas obtaining passes through the company on heat-insulated brick wall 16
Logical component 17 enters cracking room and carries out deep pyrolytic, and semicoke or other solid impurities are delivered to gasification by semicoke conveyer device 14
Carry out gasification process in stove, obtain combustible gas and be passed through heat accumulation type radiant tube for carrying out to the oil shale in pyrolysis reactor adding
Heat, lime-ash that gasification process obtains discharges gasification furnace 13, crack in cracking room the cracked gas obtaining by cracking gas export into
Enter spray column 10 to purify, purified gas enters fuel cartridge 12 and stored, can be further used for preparing LNG or LPG.
Embodiment of the present utility model is described below in detail.
Case study on implementation：Using thermal storage type moving bed pyrolysis and cracking system, Longkou oil shale is processed, the base of raw material
Plinth data is shown in Table 1.
Table 1：Longkou oil shale basic data
Process Longkou oil shale using this system, the gas products yield obtaining is 15%, far above the pyrolysis of laboratory aluminum rice steamer
Obtained factor of created gase, pyrolytic tar almost all is cracked into gaseous products, and factor of created gase is high.Cracking gas calorific value is up to
5000kcal/m3, quality height.
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
The feature of the different embodiments described in this specification or example and different embodiment or example can be carried out by technical staff
In conjunction with and combination.
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 (8)
1. a kind of oil shale pyrolysis and cracking system：It is characterized in that, including：
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 pyrolysis reactor short transverse multi-tier arrangement in described pyrolysis
Inside room and 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 reactor transverse width, vertically through in described reactor
Interior, the inner space of described reactor is separated into described pyrolysis chamber and described cracking room；
Communication member, described communication member is arranged on the bottom of described heat-insulated brick wall, for the oil gas producing 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；
Fuel cartridge, described fuel cartridge is connected with described spray column.
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.
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.
4. system according to claim 1 is it is characterised in that described communication member is described heat-insulated brick wall longitudinal length
On, positioned at the opening of lower position, the height of described opening is 3-15cm.
5. the system according to any one of claim 1-4 is it is characterised in that further include：Gasification furnace, described gasification
Stove one end is connected with the fuel gas inlet of described heat accumulation type radiant tube, and the other end is connected with semicoke conveyer device.
6. the system according to any one of claim 1-4 is it is characterised in that 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 separating device, it is connected with described drying device and described pyrolysis hopper respectively；
Exhaust gas cleaner, it is connected with described gas-solid separating device.
7. the system according to any one of claim 1-4 is it is characterised in that described pyrolysis hopper enters by described first
Material device is connected with described charging aperture.
8. system according to claim 5 is it is characterised in that further comprise semicoke outlet, it is arranged on described heat
The bottom of solution room, described semicoke outlet is connected with described semicoke conveyer device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456517.6U CN205974386U (en) | 2016-05-19 | 2016-05-19 | Oil shale pyrolysis and cracking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620456517.6U CN205974386U (en) | 2016-05-19 | 2016-05-19 | Oil shale pyrolysis and cracking system |
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| CN205974386U true CN205974386U (en) | 2017-02-22 |
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ID=58019504
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| CN201620456517.6U Withdrawn - After Issue CN205974386U (en) | 2016-05-19 | 2016-05-19 | Oil shale pyrolysis and cracking system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885900A (en) * | 2016-05-19 | 2016-08-24 | 北京神雾环境能源科技集团股份有限公司 | Oil shale pyrolysis and cracking system |
-
2016
- 2016-05-19 CN CN201620456517.6U patent/CN205974386U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885900A (en) * | 2016-05-19 | 2016-08-24 | 北京神雾环境能源科技集团股份有限公司 | Oil shale pyrolysis and cracking system |
| CN105885900B (en) * | 2016-05-19 | 2018-09-07 | 神雾科技集团股份有限公司 | A kind of oil shale pyrolysis and cracking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu science and technology group Limited by Share Ltd Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Oil shale pyrolysis and cracking system Effective date of registration: 20180327 Granted publication date: 20170222 Pledgee: Tianfeng securities Limited by Share Ltd Pledgor: Shenwu science and technology group Limited by Share Ltd Registration number: 2018990000230 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170222 Effective date of abandoning: 20180907 |