CN206051946U - One kind is from dedusting type oil shale pyrolysis and catalytic cracking system - Google Patents

One kind is from dedusting type oil shale pyrolysis and catalytic cracking system Download PDF

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Publication number
CN206051946U
CN206051946U CN201620662120.2U CN201620662120U CN206051946U CN 206051946 U CN206051946 U CN 206051946U CN 201620662120 U CN201620662120 U CN 201620662120U CN 206051946 U CN206051946 U CN 206051946U
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China
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pyrolysis
catalyst
cracking
gas
dust arrester
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CN201620662120.2U
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耿层层
陈水渺
肖磊
薛逊
吴道洪
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Shenwu Technology Group Corp Co Ltd
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Abstract

This utility model belongs to oil shale pyrolysis technical field, and in particular to a kind of to be pyrolyzed from dedusting type Oil Shale Particles and catalytic cracking system based on what heat accumulation type radiant tube was heated.The system includes:Pyrolysis hopper;First feed arrangement;Pyrolysis and catalytic cracking reaction device, including:The outlet of charging aperture, pyrolysis chamber, cracking room and cracking gas;And:Heat accumulation type radiant tube;Heat-insulated brick wall;Catalyst-adding device;Communication member;Grain bed dust arrester;Spray column and fuel cartridge.The response system simple structure of the present utility model, easy to operate, uniformity of temperature profile, heats are good, the oil gas that pyrolysis chamber produces, after grain bed dedusting, clean oil gas enters back into cracking room carries out Deep catalytic cracking, and the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, generate substantial amounts of clean cracking gas product, reduce rear end dedusting pressure, it is to avoid the problem of pyrolysis oil dust-laden, the clean and effective for being truly realized Fossil fuel is utilized.

Description

One kind is from dedusting type oil shale pyrolysis and catalytic cracking system
Technical field
This utility model belongs to oil shale pyrolysis technical field, and in particular to it is a kind of based on heat accumulation type radiant tube heat from Dedusting type Oil Shale Particles are pyrolyzed and catalytic cracking system, for producing cleaning combustible gas.
Background technology
World's oil shale resources are enriched, and 37 national oil shale reserves summations of verifying are converted into shale oil about 4000 altogether Many hundred million tons, crude oil reserve is verified greatly more than the world, it is also big than world crude resources.The oil shale proved reserves of China are converted into page Shale oil is hundred million tons about more than 400.Currently, for some countries such as China, the crude oil of production can not meet the demand of this country, and must Substantial amounts of imported crude oil must be relied on.Carbonization furnace can be divided into massive shale gas retort(Oil shale granularity typically in 8mm or More than 10mm), granule and powder carbonization furnace.At present bulk carbonization furnace have the Fushun stove of China, the three of Shenmu County Abel Kiviat (Kiviter) stove of Jiang Fanglu, Ai Shaniya, Petro Se Kesi (Petrosix) stove of Brazil.Oil Shale Particles Gas retort has the Ge Luote of Ai Shaniya(Galoter)Stove and the ATP stoves of Australia.It is existing to be pyrolyzed the type of furnace to produce oil Product are main purpose, but are pyrolyzed mostly the type of furnace, especially to process the type of furnace of the powdery oil shale as raw material, are contained in pyrolysis oil A large amount of dirt, cause pyrolysis oil to be difficult to effectively utilizes, the problems such as pyrolysis oil value is not high.Therefore, how to design a kind of high-effective dust-removing, The all simple system of system structure and technological process 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 one kind from dedusting type oil shale pyrolysis and catalysis Cracking system, the response system can carry out pyrolysis and two kinds of operations of catalytic pyrolysiss, and the oil gas that pyrolysis chamber produces is removed into grain bed Dirt, after grain bed dedusting, clean oil gas enters back into cracking room carries out Deep catalytic cracking, reduces rear end dedusting pressure The tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule by power, and the reactor can produce substantial amounts of cracking gas, so as to keep away Exempt to produce the problem of pyrolysis oil dust-laden, the clean and effective for being truly realized oil shale is utilized.The reactor employs heat accumulating type Radial canal heating technique simplifies system process while the thermal efficiency that improve reactor without the need for gas, solid heat carrier heating.
To solve above-mentioned technical problem, the technical solution adopted in the utility model is:
In view of this, this utility model provides one kind from dedusting type oil shale pyrolysis and catalytic cracking system.According to this The embodiment of utility model, the system include:Pyrolysis hopper;First feed arrangement, first feed arrangement and the pyrolysis Hopper connects;Pyrolysis and catalytic cracking reaction device, including:The outlet of charging aperture, pyrolysis chamber, cracking room and cracking gas, the charging Mouth is arranged on the roof of the pyrolysis chamber, and the cracking gas outlet is arranged on the side wall of the cracking room, and:Heat accumulating type Radial canal, the heat accumulation type radiant tube along the pyrolysis reactor short transverse multi-tier arrangement is in the pyrolysis chamber and described splits Solution chamber interior, per layer has many heat accumulation type radiant tubes arranged in the horizontal direction;Heat-insulated brick wall, the heat-insulated brick wall set Put at the 2/3 of reactor transverse width, vertically through in the reactor, the inner space of the reactor is separated Into the pyrolysis chamber and the cracking room;Catalyst-adding device, which is connected with the cracking room, for catalyst for cracking is applied It is added in the cracking room;Communication member, the communication member are on the heat-insulated brick wall longitudinal length, positioned at lower position Opening, for the pyrolysis chamber is connected with the cracking room;Grain bed dust arrester, the grain bed dust arrester with it is described The opening of heat-insulated brick wall is fixedly connected, and the grain bed dust arrester is located at the side of the pyrolysis chamber in the horizontal direction Extend to the pyrolysis indoor, for the oil gas for producing the pyrolysis chamber, by the grain bed dust arrester, be passed into institute State cracking room;Spray column, the spray column are connected with cracking gas outlet;Fuel cartridge, the fuel cartridge are connected with spray column Connect.
Inventor has found, according to the response system simple structure of this utility model embodiment, easy to operate, Temperature Distribution Uniformly, heats are good, can carry out two kinds of operations, unite two into one in a body of heater, save construction cost and floor space, and which is anti- Answer device to be divided into pyrolysis chamber and cracking room, grain bed cleaner unit, the oil gas that pyrolysis chamber produces, Jing are provided with pyrolysis chamber's oil gas vent After crossing grain bed dedusting, clean oil gas enters back into cracking room carries out Deep catalytic cracking, and the tar molecules of macromole are cracked into The gaseous hydrocarbons of small molecule, generate substantial amounts of clean cracking gas product, reduce rear end dedusting pressure, it is to avoid pyrolysis oil contains The problem of dirt, the clean and effective for being truly realized Fossil fuel are utilized.And the reactor employs heat accumulation type radiant tube heating Technology simplifies system process while the thermal efficiency that improve reactor without the need for gas, solid heat carrier heating.
According to embodiment of the present utility model, the grain bed dust arrester is located on the side of pyrolysis chamber side and arranges tool There is the pore area in multiple holes, the grain bed dust arrester is located at the bottom surface of pyrolysis chamber side and is provided with dust outlet, and described Grain bed dust arrester be located at cracking room side side surface upper part be provided with for the dust arrester is carried out blowback blow valve port, Bottom is provided with pyrolysis gas outlet.
According to embodiment of the present utility model, the thickness of the heat-insulated brick wall is 50-150mm, and the height of the pore area is 150-1500mm, a diameter of 1-30mm in the hole;It is inclined-plane that the grain bed dust arrester is located at the top of pyrolysis chamber side Design, the grain bed dust arrester are embedded in the opening, and the height of the grain bed dust arrester is 200-2000mm, Width is 100-500mm, and the grain bed dust arrester is built with 1mm-20mm high filter medium;Preferably, the filtration Medium is perlite, sandstone or spherical ceramic particles.
According to embodiment of the present utility model, the system is further included:Gasification furnace, described gasification furnace one end and the storage The fuel gas inlet of hot type radial canal is connected, and the other end is connected with the semicoke conveyer device.
According to embodiment of the present utility model, the system also includes:Loading hopper;Second feed arrangement, itself and the charging Bucket is connected;Drying device, which is connected with second feed arrangement and the exhanst gas outlet on the heat accumulation type radiant tube respectively;Gas Solid separation device, which is connected with the drying device and the pyrolysis hopper respectively;Exhaust gas cleaner, itself and the gas-solid Segregation apparatuss are connected.
According to embodiment of the present utility model, catalyst-adding device includes:Catalyst hooper;Catalyst is responsible for, described Catalyst supervisor be connected with the catalyst hooper;Catalyst arm, the catalyst arm are connected with catalyst supervisor Logical, the catalyst arm passes through the wall of the reactor cracking room and extends to inside the cracking room;At least one catalysis Agent jet member, the catalyst ejector part are arranged on the catalyst arm, and are located inside the cracking room;Preferably, The catalyst arm is multiple and arranged parallel to each other along the length direction of catalyst supervisor, and the catalyst arm sets Put the interlayer in the heat accumulation type radiant tube;Preferably, the catalyst ejector part includes catalyst ejection passage and is arranged on Nozzle on the catalyst ejection passage, is provided with regulating valve on the nozzle.
According to embodiment of the present utility model, the pyrolysis hopper is by first feed arrangement and the charging aperture phase Even;Semicoke outlet is further comprised, which is arranged on the bottom of the pyrolysis chamber, the semicoke outlet is filled with semicoke conveying Put connection.
In other side of the present utility model, this utility model provides one kind and carries out heat using foregoing system The method of solution and catalytic pyrolysiss.According to embodiment of the present utility model, the method is comprised the following steps:A. Oil Shale Particles are led to Cross first feed arrangement and the charging aperture is added in the reactor, it is complete in the pyrolysis chamber of the reactor Into pyrolytic process;B. the oil gas for being pyrolyzed generation was carried out by the grain bed dust arrester arranged on the heat-insulated brick wall of the reactor After filtering dust collecting, clean oil gas enters into the cracking room of the reactor;C. clean oil gas enters into the cracking room Interior, the catalyst-adding device is sprayed on catalyst in the cracking room, and the pyrolysis oil gas is indoor complete in the cracking Into catalytic pyrolysis process, cracking gas is produced;D. the cracking gas is entered in the spray column by cracking gas outlet, right The cracking gas carries out purified treatment;E. the net cracking gas through purification is entered in the fuel cartridge and is stored.
According to embodiment of the present utility model, in step a, the Oil Shale Particles enter from the reactor top Material mouth is added in the reactor, and is broken up by the heat accumulation type radiant tube in the reactor, and pyrolysis char is from described The semicoke outlet of reactor bottom is discharged;In step a, Oil Shale Particles are by the accumulation of heat in the reactor pyrolysis chamber Formula radial canal is heated to 500-600 DEG C, and in step b, pyrolysis oil gas is by the heat accumulating type in the reactor cracking room Radial canal is heated to 600-900 DEG C, and in step c, the catalyst is equably sprayed on by the catalyst ejector part In the cracking room.
According to embodiment of the present utility model, the granularity of the Oil Shale Particles is below 20mm.
This utility model at least has the advantages that:
1)Heat accumulation type radiant tube moving bed process heating 20mm particles below and powder oil shale are taken, Temperature Distribution is equal Even, heats are good, and response system simple structure is easy to operate;
2)Reactor is divided into pyrolysis chamber and cracking room, and the oil gas that pyrolysis chamber produces can carry out Deep catalytic in cracking room and split Solution, the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, and by way of catalytic pyrolysiss, produce a large amount of hydrogen, Combustion gas quality is high;
3)The response system can produce substantial amounts of cracking gas product, so as to avoid the problem of production pyrolysis oil dust-laden, very The clean and effective for just realizing oil shale is utilized;
4)It is provided with grain bed cleaner unit at pyrolysis chamber's oil gas vent, the oil gas that pyrolysis chamber produces, after grain bed dedusting, Clean oil gas enters back into cracking room carries out deep pyrolytic, reduces rear end dedusting pressure, generates clean cracking gas;
5)Two kinds of operations can be carried out in one body of heater, is united two into one, save construction cost and floor space.
Description of the drawings
Fig. 1 is the structure chart of this utility model pyrolysis and catalytic cracking system.
Fig. 2 is the structure of reactor figure of this utility model pyrolysis and catalytic cracking system.
Fig. 3 be this utility model reactor in be provided with grain bed dust arrester heat-insulated brick wall front view.
Structure charts of the Fig. 4 for the grain bed dust arrester in this utility model reactor.
Wherein, 1, loading hopper;2nd, pneumatic conveyer dryer;3rd, thermal storage type moving bed reactor;4th, it is dried cyclone separator;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, catalyst hooper;16th, catalyst ejection passage;17th, accumulation of heat Formula radial canal;18th, heat-insulated brick wall;19th, communication member;20th, catalyst supervisor;21st, catalyst arm;22nd, pyrolysis chamber;23rd, split Solution room;24th, cracking gas outlet;25th, charging aperture;26th, fuel gas inlet;27th, exhanst gas outlet;28th, air intake;29th, semicoke outlet; 30th, grain bed dust arrester;3001st, pore area;3002nd, dust outlet;3003rd, blow valve port;3004th, pyrolysis gas 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 Document described by technology or condition or carry out according to product description.
This utility model provides one kind from dedusting type oil shale pyrolysis and catalytic cracking system.According to of the present utility model Embodiment, with reference to shown in Fig. 1, the system includes:Pyrolysis hopper 5;First feed arrangement 9, first feed arrangement with it is described Pyrolysis hopper connection;Pyrolysis and catalytic cracking reaction device 3, including:Charging aperture 25, pyrolysis chamber 22, the outlet of cracking room 23, cracking gas 24th, heat accumulation type radiant tube 17, heat-insulated brick wall 18, catalyst-adding device, communication member 19 and with grain bed dust arrester 30, The charging aperture is arranged on the roof of the pyrolysis chamber, and the cracking gas outlet is arranged on the side wall of the cracking room, institute State heat-insulated brick wall to arrange vertically through in the reactor, the inner space of the reactor is separated into into the pyrolysis chamber With the cracking room;The catalyst-adding device is connected with the cracking room, for catalyst for cracking is put on described splitting In solution room;The communication member is on the heat-insulated brick wall longitudinal length, positioned at the opening of lower position, for by the pyrolysis Room is connected with the cracking room;Grain bed dust arrester, the opening of the grain bed dust arrester and the heat-insulated brick wall It is fixedly connected, and the grain bed dust arrester extends horizontally and to the pyrolysis chamber positioned at the side of the pyrolysis chamber It is interior, for the oil gas for producing the pyrolysis chamber, by the grain bed dust arrester, it is passed into the cracking room;Spray column 10, the spray column is connected with cracking gas outlet;Fuel cartridge 12, the fuel cartridge are connected with spray column.
Inventor has found, according to the response system simple structure of this utility model embodiment, easy to operate, Temperature Distribution Uniformly, heats are good, can carry out two kinds of operations, unite two into one in a body of heater, save construction cost and floor space, and which is anti- Answer device to be divided into pyrolysis chamber and cracking room, grain bed cleaner unit, the oil gas that pyrolysis chamber produces, Jing are provided with pyrolysis chamber's oil gas vent After crossing grain bed dedusting, clean oil gas enters back into cracking room carries out Deep catalytic cracking, and the tar molecules of macromole are cracked into The gaseous hydrocarbons of small molecule, generate substantial amounts of clean cracking gas product, reduce rear end dedusting pressure, it is to avoid pyrolysis oil contains The problem of dirt, the clean and effective for being truly realized Fossil fuel are utilized.
According to specific embodiment of the utility model, it is adaptable to which the particle diameter of the oil shale of the reactor is not particularly limited, In some preferred embodiments of the present utility model, the oil shale that the reactor is adopted 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 which the type of furnace of the 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 dividing for heat-insulated brick wall integration can be passed through 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 the pyrolysis reactor Heat accumulation type radiant tube of the short transverse multi-tier arrangement inside the pyrolysis chamber and the cracking room, 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, the pyrolysis chamber and split Solution interior distributed at least one heat accumulation type radiant tube respectively, it is preferred that at least one heat accumulation type radiant tube is uniform Distribution.Heat accumulation type radiant tube can be effective for pyrolysis material and cracking indoor oil gas and heat so as to carry out pyrolysis and Cracking reaction, specifically, can be passed through combustible gas and air into heat accumulation type radiant tube, combustible gas burning is realized to pyrolysis material Heating function.The reactor employs heat accumulation type radiant tube heating technique without the need for gas, solid heat carrier heating, and Temperature Distribution is equal Even, heats are good, and response system simple structure is easy to operate, simplifies system while the thermal efficiency that improve reactor Technique.
In the reactor, oil shale is moved from top to bottom, the unidirectional heat accumulating type radiation being evenly arranged arranged in pyrolysis chamber Oil shale can be broken up by pipe is uniformly distributed which, and oil shale is stopped 1-50 minutes 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, what pyrolysis was produced Oil gas, into the grain bed dust arrester, after filtering dust collecting, clean oil gas enters into cracking room to oil gas, in cracking room The unidirectional heat accumulation type radiant tube being evenly arranged is provided with, and is heated to 600-900 DEG C, tube wall temperature is controlled using gas control valve In 600~900 DEG C of scopes, while the catalyst in catalyst-adding device enters cracking by the sprinkling of catalyst ejection passage Room, completes cracking process, and the tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule, produce substantial amounts of cracking gas, it is to avoid The problem of pyrolysis oil dust-laden, the clean and effective for being truly realized oil shale are utilized.According to embodiment of the present utility model, accumulation of heat The shape of formula radial canal is not particularly limited, and in some embodiments of the present utility model, can be cylinder, thus be conducive to Oil shale is broken up, and realizes mixing oil shale in the reactor dispersed.
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 is connected with cracking room, so as to the oil gas for producing pyrolysis chamber is passed into cracking room.More of the present utility model In embodiment, as shown in Fig. 2 communication member is on the heat-insulated brick wall longitudinal length, positioned at the opening of lower position.
According to specific embodiment of the utility model, when Fig. 3 is from terms of the from left to right of reactor, this utility model reactor In be provided with grain bed dust arrester heat-insulated brick wall front view, as shown in Figures 2 and 3, heat-insulated brick wall is arranged on reactor Interior, it is preferred that at the 2/3 of reactor transverse width, the thickness of heat-insulated brick wall is 50-150mm, and heat-insulated brick wall is vertically passed through It is through in reactor, the inner space of reactor is separated into into pyrolysis chamber and cracking room, the structure causes to set in a body of heater Zhi Liao pyrolysis chambers and cracking room, the oil gas that pyrolysis chamber produces are pyrolyzed the oil gas for producing by setting on the heat-insulated brick wall of the reactor After the grain bed dust arrester put carries out dust removal by filtration, clean oil gas enters into the cracking interior, completes catalysis and splits The tar molecules of macromole are cracked into the gaseous hydrocarbons of small molecule by solution preocess, produce substantial amounts of cracking gas, so as to avoid life Produce the problem of pyrolysis oil dust-laden.Also, two kinds of operations can be carried out in a body of heater, is united two into one, save construction cost and occupation of land Area.
According to specific embodiment of the utility model, the concrete mounting means of the grain bed dust arrester is unrestricted, can Think welding, rivet or inlay, according to some embodiments of the present utility model, Fig. 4 is the granule in this utility model reactor The structure chart of bed dust arrester, as shown in Figure 1, Figure 2 and Figure 4, particle dust-collecting equipment is inlayed by this utility model using mosaic mode It is embedded in the opening, grain bed dust arrester is located on the side of pyrolysis chamber side and arranges the pore area 3001 with multiple holes, The grain bed dust arrester is located at the bottom surface of pyrolysis chamber side and is provided with dust outlet 3002, and grain bed dedusting dress It is provided with and is provided with for the blow valve port 3003, bottom that blowback is carried out to the dust arrester setting in the side surface upper part of cracking room side Pyrolysis gas outlet 3004.
According to specific embodiment of the utility model, as described in fig. 3 and fig. 4, the height of the pore area is 150-1500mm, A diameter of 1-30mm in the hole;The grain bed dust arrester be located at pyrolysis chamber side top be inclined design, described The height of grain bed dust arrester is 200-2000mm, and width is 100-500mm, and the grain bed dust arrester is built with 1mm- 20mm high filter medium;According to some embodiments of the present utility model, this utility model adopts filter medium for perlite, sand Stone or spherical ceramic particles.
According to specific embodiment of the utility model, the system may further include:Respectively with heat accumulation type radiant tube The gasification furnace 13 that fuel gas inlet is connected with semicoke conveyer device.Thus, it is possible to utilize semicoke conveyer device to be pyrolyzed in pyrolysis chamber The semicoke of generation is delivered in gasification furnace, carries out gasification process to semicoke, and to obtain combustible gas and lime-ash, the combustible gas for obtaining can To be passed through in heat accumulation type radiant tube, while being passed through air in heat accumulation type radiant tube, combustible gas is made to burn to the thing in pyrolysis chamber Material is heated.Thus, it is possible to sufficiently utilize semicoke, do not cause to waste, good economy performance.
According to specific embodiment of the utility model, the reactor is provided with fuel gas inlet 26, air intake 28 and cigarette Gas outlet 27, 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, and the air for source of the gas is produced is passed through heat accumulating type spoke Penetrate in pipe.
According to specific embodiment of the utility model, the system may further include:Loading hopper 1;It is connected with loading hopper 1 The second feed arrangement 9;What is be connected with second feed arrangement and the exhanst gas outlet on the heat accumulation type radiant tube respectively is dry Dry device 2;The gas-solid separating device 4 being connected with the drying device and the pyrolysis hopper respectively;With the gas solid separation The exhaust gas cleaner 7 that device is connected.Thus, it is possible to passing through the second feed arrangement adds drying by the oil shale in loading hopper In device, in drying device, the flue gas (temperature about 200~250 of heat accumulation type radiant tube of the oil shale in from pyrolysis chamber Degree Celsius) in the presence of be dried, then the mixture of dried oil shale and flue gas enters gas-solid separating device, separate The flue gas (about 70~110 degrees Celsius of temperature) of acquisition carries out purified treatment in exhaust gas cleaner, to realize row up to standard Put, separate the pyrolysis material for obtaining and be delivered in pyrolysis hopper, 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 It can be feeding screw 9 to put.Thereby, it is possible to realize the Automatic Conveying to oil shale, and conveying capacity is controllable, device structure letter It is single, it is easy to operate.
According to embodiment of the present utility model, the concrete species of drying device is not particularly limited, if can realize it is right The function of the drying and preheating of oil shale.In some embodiments of the present utility model, drying device can be dry for air-flow Dry device, thus, oil shale in the presence of flue gas is dried and is lifted, and the mixture of dried oil shale and flue gas is discharged Pneumatic conveyer dryer, is conducive to subsequent step to carry out.In drying device, while being dried to pyrolysis material, also achieve The function of preheating, is discharged using heat accumulation type radiant tube in being conducive to the speed and efficiency, and pyrolysis chamber for improve follow-up pyrolytic reaction Flue gas oil shale is dried and is preheated, realize the comprehensive utilization of heat energy, effectively reduce energy consumption, reached energy-saving ring The purpose of guarantor.
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 is separated with flue gas.In some embodiments of the present utility model, gas-solid separating device can be to be dried whirlwind point From device 4, thus, it is possible to quickly and efficiently pyrolysis material and flue gas are separated, and good separating effect, it is simple to operation, into This is relatively low.
According to embodiment of the present utility model, further can also set between gas-solid separating device and exhaust gas cleaner Tail gas air-introduced machine 6 is equipped with, the flue gas that acquisition is separated in gas-solid separating device quickly and efficiently can be delivered to by tail gas air-introduced machine In exhaust gas cleaner, be conducive to improving work efficiency.
According to embodiment of the present utility model, the pyrolysis plant is also provided with the chimney being connected with exhaust gas cleaner 8, the flue gas Jing chimneys 8 after exhaust gas cleaner purified treatment are emptied, and thus, are conducive to environmental protection, are reduced pollution.
According to embodiment of the present utility model, the system can also include:May be used also between spray column 10 and fuel cartridge 12 To be further provided with combustion gas air-introduced machine 11, combustion gas air-introduced machine 11 quickly and efficiently will can be obtained through purification in spray column Natural gas transportation stored into fuel cartridge, further, the cracking gas for obtaining can be further used for prepare LNG or LNP.Inventor find, the yield of cracking gas can be significantly improved using the system, have enough gas for production liquefy day So gas (LNG) or liquefied petroleum gas (LPG), good in economic efficiency.
According to specific embodiment of the utility model, catalyst-adding device includes:Catalyst hooper 15;Catalyst is responsible for 20, the catalyst supervisor 20 is connected with the catalyst hooper 15;Catalyst arm 21, the catalyst arm are urged with described Agent supervisor be connected, and the catalyst arm passes through the wall of the reactor cracking room and extends to inside the cracking room; At least one catalyst ejector part, the catalyst ejector part are arranged on the catalyst arm, and are located at the cracking room It is internal;Preferably, the catalyst arm be it is multiple and along the catalyst supervisor length direction it is arranged parallel to each other, it is described Catalyst arm is arranged on the interlayer of the heat accumulation type radiant tube;Preferably, the catalyst ejector part includes that catalyst sprays Pipeline 16 and the nozzle being arranged on the catalyst ejection passage, are provided with regulating valve on the nozzle.
According to embodiment of the present utility model, the species and particle diameter of the catalyst of employing are not particularly limited, this area skill Art personnel flexibly can select as needed.In some embodiments of the present utility model, the catalyst that the system is adopted can be with It is used in mixed way for one or more in dolomite, Ni bases catalyst and Fe base catalyst;The particle diameter of catalyst can be little In 0.5 millimeter;Thus, catalytic efficiency is higher, the pyrolysis and catalytic pyrolysiss to oil shale to put forward oily degree higher, natural gas is received Rate is higher.
According to specific embodiment of the utility model, the pyrolysis hopper is connected with charging aperture by the first feed arrangement; Semicoke outlet is further comprised, which is arranged on the bottom of the pyrolysis chamber, the semicoke outlet and the semicoke conveyer device Connection.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 9.Thus, The Automatic Conveying to oil shale can be realized, conveying capacity is controllable, and device structure is simple, it is 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 can be with For conveying worm 14.Thereby, it is possible to realize the Automatic Conveying to semicoke, and conveying capacity is controllable, and device structure is simple, operation It is convenient.
In other side of the present utility model, this utility model provides one kind and carries out heat using foregoing system The method of solution and catalytic pyrolysiss.According to embodiment of the present utility model, the method may comprise steps of:
A. Oil Shale Particles are passed through into first feed arrangement and the charging aperture being arranged on the roof of the pyrolysis chamber It is added in the reactor, pyrolytic process is completed in the pyrolysis chamber of the reactor, pyrolysis char is from reactor bottom The semicoke outlet in portion is discharged, and Jing semicokes conveyer device is discharged.
According to specific embodiment of the utility model, it is adaptable to which the particle diameter of the oil shale of the reactor is not particularly limited, In some preferred embodiments of the present utility model, the oil shale that the reactor is adopted 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 is effectively delivered in reactor.In some embodiments of the present utility model, the One feed arrangement can be with feeding screw 9.Thereby, it is possible to realize the Automatic Conveying to oil shale, conveying capacity is controllable, and equipment Simple structure, it is easy to operate.
According to specific embodiment of the utility model, the pyrolysis interior distributed at least one heat accumulation type radiant tube 17, it is preferred that at least one heat accumulation type radiant tube is uniformly distributed, specifically, unidirectional heat accumulation type radiant tube can be by oily page Rock is broken up is uniformly distributed which, and oil shale is stopped 1-50 minutes in the reactor from top to bottom, and is heated to 500-600 DEG C, manages 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 to be added pyrolysis hopper, can also be in advance to oil shale Process is dried, 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, be conducive to improving pyrolysis efficiency.According to embodiment of the present utility model, the pyrolysis side Method can also include the step of 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 14, under preferable case, semicoke conveyer can be conveying worm 14.It is right thereby, it is possible to realize The Automatic Conveying of semicoke, and conveying capacity is controllable, device structure is simple, easy to operate.
B. the oil gas for being pyrolyzed generation is filtered by the grain bed dust arrester arranged on the heat-insulated brick wall of the reactor After dedusting, clean oil gas enters into the cracking room of the reactor.
According to specific embodiment of the utility model, heat-insulated brick wall is arranged in reactor, it is preferred that horizontal positioned at reactor To at the 2/3 of width, the thickness of heat-insulated brick wall is 50-150mm, heat-insulated brick wall vertically through in reactor, by reactor Inner space be separated into pyrolysis chamber and cracking room, the structure causes pyrolysis chamber and cracking room are provided with a body of heater, heat The oil gas that solution room produces, is pyrolyzed the grain bed dust arrester that the oil gas for producing passes through to arrange on the heat-insulated brick wall of the reactor After carrying out dust removal by filtration, clean oil gas enters into the cracking interior, completes catalytic pyrolysis process, by the tar of macromole point Son is cracked into the gaseous hydrocarbons of small molecule, produces substantial amounts of cracking gas, so as to avoid the problem of production pyrolysis oil dust-laden.And And, two kinds of operations can be carried out in a body of heater, is united two into one, save construction cost and floor space.
According to specific embodiment of the utility model, the concrete mounting means of the grain bed dust arrester is unrestricted, can Think welding, rivet or inlay, according to some embodiments of the present utility model, granule is removed using mosaic mode by this utility model Dirt device is embedded in the opening, and grain bed dust arrester is located on the side of pyrolysis chamber side and arranges the hole with multiple holes Band 3001, the grain bed dust arrester are located at the bottom surface of pyrolysis chamber side and are provided with dust outlet 3002, and the granule Bed dust arrester be located at cracking room side side surface upper part be provided with for the dust arrester is carried out blowback blow valve port 3003, Bottom is provided with pyrolysis gas outlet 3004.
According to specific embodiment of the utility model, the height of the pore area is 150-1500mm, the hole it is a diameter of 1-30mm;It is inclined design that the grain bed dust arrester is located at the top of pyrolysis chamber side, the grain bed dust arrester It is highly 200-2000mm, width is 100-500mm, the grain bed dust arrester is situated between built with 1mm-20mm high filtration Matter;According to some embodiments of the present utility model, this utility model adopts filter medium for perlite, sandstone or ceramic variole Grain.
C. clean oil gas enters into the cracking interior, and catalyst is sprayed on described by the catalyst-adding device In cracking room, the pyrolysis oil gas completes catalytic pyrolysis process in the cracking interior, produces cracking gas.
According to embodiment of the present utility model, the species and particle diameter of the catalyst of employing are not particularly limited, this area skill Art personnel flexibly can select as needed.In some embodiments of the present utility model, the catalyst that the system is adopted can be with It is used in mixed way for one or more in dolomite, Ni bases catalyst and Fe base catalyst;The particle diameter of catalyst can be little In 0.5 millimeter;Thus, catalytic efficiency is higher, the pyrolysis and catalytic pyrolysiss to oil shale to put forward oily degree higher, natural gas is received Rate is higher.
According to specific embodiment of the utility model, the cracking interior distributed at least one heat accumulation type radiant tube 17, it is preferred that at least one heat accumulation type radiant tube is uniformly distributed, and specifically, and is heated to 600-900 DEG C, tube wall temperature Controlled in 600~900 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 that is truly realized oil shale is high Effect is utilized.
D. the cracking gas is entered in the spray column by cracking gas outlet, and the cracking gas is purified Process;
E. the net cracking gas through purification is entered in the fuel cartridge and is stored.
According to embodiment of the present utility model, the system can also include:May be used also between spray column 10 and fuel cartridge 12 To be further provided with combustion gas air-introduced machine 11, combustion gas air-introduced machine 11 quickly and efficiently will can be obtained through purification in spray column Natural gas transportation stored into fuel cartridge, further, the cracking gas for obtaining can be further used for prepare LNG or LNP.Inventor find, the yield of cracking gas can be significantly improved using the system, have enough gas for production liquefy day So gas (LNG) or liquefied petroleum gas (LPG), good in economic efficiency.
Inventor has found, according to the response system simple structure of this utility model embodiment, easy to operate, Temperature Distribution Uniformly, heats are good, can carry out two kinds of operations, unite two into one in a body of heater, save construction cost and floor space, and which is anti- Answer device to be divided into pyrolysis chamber and cracking room, grain bed cleaner unit, the oil gas that pyrolysis chamber produces, Jing are provided with pyrolysis chamber's oil gas vent After crossing grain bed dedusting, clean oil gas enters back into cracking room carries out Deep catalytic cracking, and the tar molecules of macromole are cracked into The gaseous hydrocarbons of small molecule, generate substantial amounts of clean cracking gas product, reduce rear end dedusting pressure, it is to avoid pyrolysis oil contains The problem of dirt, the clean and effective for being truly realized Fossil fuel are utilized.
Below to the specific works mistake from dedusting type oil shale pyrolysis and catalytic cracking system and method for the present utility model Journey is described in detail, 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 99 During raw shale oil in loading hopper 1 adds pneumatic conveyer dryer 2, while 200~250 discharged in heat accumulation type radiant tube 17 are Celsius The flue gas of degree is passed through in pneumatic conveyer dryer, and raw shale oil in the presence of flue gas is dried and is lifted, then flue gas and original The mixture of material oil shale discharges pneumatic conveyer dryer, and in gas-solid separating device 4, (temperature is about 70 to the flue gas that separation is obtained ~110 degrees Celsius) gas-solid separating device is discharged, and exhaust gas cleaner 7 is entered in the presence of tail gas air-introduced machine, carry out net Change is processed, and is purified the flue gas Jing chimneys 8 for meeting discharge standard for obtaining and is emptied, isolated raw oil in gas-solid separating device Shale discharges gas-solid separating device, and enters in pyrolysis hopper 5, then will be stored in pyrolysis material using the first pay-off During raw shale oil adds pyrolysis reactor, move from top to bottom, stop about 1~50 minute, in the heat accumulating type spoke being uniformly arranged The breaing up with heat effect of pipe 17 (about 500~700 degrees Celsius of tube wall temperature) is penetrated, oil shale thermally equivalent is warming up to 500 ~600 degrees Celsius, pyrolytic reaction is completed, obtain being pyrolyzed oil gas and semicoke, the pyrolysis oil gas for obtaining is heat-insulated by the reactor The grain bed dust arrester 30 arranged on brick wall carries out dust removal by filtration, while passing through 3003 pairs of dust arresters of blow valve port Blowback is carried out, the dust of generation is discharged into the semicoke conveyer device 14 by dust outlet 3002, and clean oil gas leads to Cross pyrolysis gas outlet 3004 and enter into the cracking interior, while the catalyst in catalyst hooper is (including but not limited to white One or more in marble, Ni bases catalyst and Fe base catalyst are used in mixed way) by catalyst ejection passage 16 successively Jing catalyst supervisor 20, catalyst arm 21 and catalyst ejector part Jing nozzles are uniformly sprayed in cracking room, are carried out depth and are urged Change cracking, semicoke or other solid impurities are delivered in gasification furnace 13 by semicoke conveyer device 14 and carry out gasification process, obtained Combustible gas is passed through heat accumulation type radiant tube for heating to the oil shale in pyrolysis reactor, the lime-ash row that gasification process is obtained Go out gasification furnace, the cracked gas for obtaining are cracked in cracking room and is purified into spray column 10 by cracking gas outlet 24, after purification Gas is stored into fuel cartridge 12, can be further used for preparing LNG or LPG.
Specific embodiment:
Using processing from dedusting type oil shale pyrolysis and catalytic cracking system to Longkou oil shale, the basic number of raw material According to being shown in Table 1.
Table 1:Longkou oil shale basic data
Using the reactor for treatment Longkou oil shale, the gas products yield for obtaining is 16%, far above laboratory aluminum rice steamer heat Factor of created gase obtained by solution, pyrolytic tar almost all are cracked into gaseous products, and factor of created gase is high.In cracking gas, hydrogen content is 45%, quality is high, and in the cracking gas of the system output, dust content is less than 1%, and gas is more cleaned.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and It is not intended that indicating or implying relative importance or the implicit quantity for 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 It is fixed " etc. term should be interpreted broadly, it is for example, it may be fixedly connected, or be detachably connected or integral;Can be It is mechanically connected, or electrically connects;Can 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 of the above-mentioned term in this utility model.
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 are by 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 " can be with Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy 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 Combined in any one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, this area The feature of the different embodiments or example described in this specification and different embodiments or example can be carried out by technical staff With reference to and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, be changed, being replaced and modification, simultaneously for one of ordinary skill in the art, foundation The thought of the application, will change in specific embodiments and applications.

Claims (7)

1. one kind is from dedusting type oil shale pyrolysis and catalytic cracking system, it is characterised in that include:
Pyrolysis hopper;
First feed arrangement, first feed arrangement are connected with the pyrolysis hopper;
Pyrolysis and catalytic cracking reaction device, including:The outlet of charging aperture, pyrolysis chamber, cracking room and cracking gas, the charging aperture set Put on the roof of the pyrolysis chamber, the cracking gas outlet is arranged on the side wall of the cracking room;And:
Heat accumulation type radiant tube, the heat accumulation type radiant tube along the pyrolysis reactor short transverse multi-tier arrangement in the pyrolysis Inside room and the cracking room, per layer has many heat accumulation type radiant tubes arranged in the horizontal direction;
Heat-insulated brick wall, the heat-insulated brick wall are arranged at the 2/3 of reactor transverse width, vertically through in the reactor It is interior, the inner space of the reactor is separated into into the pyrolysis chamber and the cracking room;
Catalyst-adding device, which is connected with the cracking room, for catalyst for cracking is put in the cracking room;Its In, catalyst-adding device includes:Catalyst hooper;Catalyst is responsible for, and the catalyst is responsible for and the catalyst hooper phase Even;Catalyst arm, the catalyst arm are connected with catalyst supervisor, and the catalyst arm passes through the reaction The wall of device cracking room is simultaneously extended to inside the cracking room;At least one catalyst ejector part, the catalyst ejector part are arranged On the catalyst arm, and it is located inside the cracking room;The catalyst arm is multiple and along the catalyst master The length direction of pipe is arranged parallel to each other, and the catalyst arm is arranged on the interlayer of the heat accumulation type radiant tube;The catalysis Agent jet member includes catalyst ejection passage and the nozzle being arranged on the catalyst ejection passage, is provided with the nozzle Regulating valve;
Communication member, the communication member are on the heat-insulated brick wall longitudinal length, positioned at the opening of lower position, for by institute State pyrolysis chamber to connect with the cracking room;
Grain bed dust arrester, the grain bed dust arrester are fixedly connected with the opening of the heat-insulated brick wall, and described Grain bed dust arrester is located at the side of the pyrolysis chamber, and to extend horizontally and to the pyrolysis indoor, for by the pyrolysis The oil gas that room produces, by the grain bed dust arrester, is passed into the cracking room;
Spray column, the spray column are connected with cracking gas outlet;
Fuel cartridge, the fuel cartridge are connected with spray column.
2. system according to claim 1, it is characterised in that the grain bed dust arrester is located at the side of pyrolysis chamber side Pore area with multiple holes is set on face, and the grain bed dust arrester is located at the bottom surface of pyrolysis chamber side and is provided with dust discharge Mouthful, and the grain bed dust arrester be located at cracking room side side surface upper part be provided with for carrying out blowback to the dust arrester Blow valve port, bottom be provided with pyrolysis gas outlet.
3. system according to claim 2, it is characterised in that the thickness of the heat-insulated brick wall is 50-150mm, the hole The height of band is 150-1500mm, a diameter of 1-30mm in the hole;The grain bed dust arrester is located at pyrolysis chamber side Top is inclined design, and the grain bed dust arrester is embedded in the opening, and the height of the grain bed dust arrester is 200-2000mm, width are 100-500mm, and the grain bed dust arrester is built with 1mm-20mm high filter medium.
4. the system according to any one of claim 1-2, it is characterised in that further include:Gasification furnace, the gasification Stove one end is connected with the fuel gas inlet of the heat accumulation type radiant tube, and the other end is connected with semicoke conveyer device.
5. the system according to any one of claim 1-2, it is characterised in that also include:
Loading hopper;
Second feed arrangement, which is connected with the loading hopper;
Drying device, which is connected with second feed arrangement and the exhanst gas outlet on the heat accumulation type radiant tube respectively;
Gas-solid separating device, which is connected with the drying device and the pyrolysis hopper respectively;
Exhaust gas cleaner, which is connected with the gas-solid separating device.
6. the system according to any one of claim 1-2, it is characterised in that the pyrolysis hopper enters by described first Material device is connected with the charging aperture;Semicoke outlet is further comprised, which is arranged on the bottom of the pyrolysis chamber, the semicoke Outlet is connected with the semicoke conveyer device.
7. system according to claim 3, it is characterised in that the filter medium is perlite, sandstone or ceramic variole Grain.
CN201620662120.2U 2016-06-29 2016-06-29 One kind is from dedusting type oil shale pyrolysis and catalytic cracking system Active CN206051946U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105885901A (en) * 2016-06-29 2016-08-24 北京神雾环境能源科技集团股份有限公司 Self dust collection type oil shale pyrolysis and catalytic cracking system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105885901A (en) * 2016-06-29 2016-08-24 北京神雾环境能源科技集团股份有限公司 Self dust collection type oil shale pyrolysis and catalytic cracking system

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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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Denomination of utility model: Self dust collection type oil shale pyrolysis and catalytic cracking system

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