CN105885900A - Oil shale pyrolysis and cracking system - Google Patents
Oil shale pyrolysis and cracking system Download PDFInfo
- Publication number
- CN105885900A CN105885900A CN201610332300.9A CN201610332300A CN105885900A CN 105885900 A CN105885900 A CN 105885900A CN 201610332300 A CN201610332300 A CN 201610332300A CN 105885900 A CN105885900 A CN 105885900A
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- Prior art keywords
- pyrolysis
- cracking
- gas
- reactor
- oil
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 120
- 238000005336 cracking Methods 0.000 title claims abstract description 116
- 239000004058 oil shale Substances 0.000 title claims abstract description 60
- 239000007789 gas Substances 0.000 claims abstract description 114
- 239000011449 brick Substances 0.000 claims abstract description 36
- 239000007921 spray Substances 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000002737 fuel gas Substances 0.000 claims abstract description 7
- 238000009825 accumulation Methods 0.000 claims description 49
- 238000009413 insulation Methods 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 19
- 239000007787 solid Substances 0.000 claims description 19
- 239000000446 fuel Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000002309 gasification Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 abstract description 10
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000002803 fossil fuel Substances 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000005338 heat storage Methods 0.000 abstract 2
- 239000000428 dust Substances 0.000 abstract 1
- 229920002521 macromolecule Polymers 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 37
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 17
- 239000003546 flue gas Substances 0.000 description 17
- 230000004044 response Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 239000000567 combustion gas Substances 0.000 description 7
- 239000003949 liquefied natural gas Substances 0.000 description 7
- 239000003915 liquefied petroleum gas Substances 0.000 description 5
- 239000003079 shale oil Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000026676 system process Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/06—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of oil shale and/or or bituminous rocks
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/18—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge
- C10B47/20—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with moving charge according to the moving bed type
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/02—Combustion or pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/545—Washing, scrubbing, stripping, scavenging for separating fractions, components or impurities during preparation or upgrading of a fuel
Abstract
The invention belongs to the technical field of oil shale pyrolysis, and particularly relates to an oil shale particle pyrolysis and cracking system based on heat storage type radiant tube heating. The system comprises a pyrolysis hopper, a first charge device, a pyrolysis and cracking reactor, a spray tower and a fuel gas tank, wherein the pyrolysis and cracking reactor comprises a charge hole, a pyrolysis chamber, a cracking chamber and a cracking gas outlet as well as the heat storage type radiant tube, a heat-insulating brick wall and a communicating part. The reaction system is simple in structure, is convenient to operate, is uniform in temperature distribution and is good in heating effect; oil gas generated by the pyrolysis chamber can be deeply cracked in the cracking chamber, macromolecule tar molecules are cracked into micromolecular gas-state hydrocarbons; the reaction system can generate a great number of cracking gas products, so that the problem that pyrolysis oil contains dust is avoided, and the clean and efficient utilization of fossil fuels is truly realized.
Description
Technical field
The invention belongs to oil shale pyrolysis technical field, be specifically related to a kind of granule oil based on heat accumulation type radiant tube heating
Shale pyrolysis and cracking system, be used for producing cleaning combustible gas.
Background technology
World petroleum resource is in short supply at present, day by day 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.But, China has very abundant oil shale resources, current China
Pyrolysis shale oil yield ranks first in the world, and has the trend increased year by year.The existing oil shale retorting type of furnace is mainly comforted
Along stove, three gas combustion side, river stoves, Petro Se Kesi (Petrosix) stove of Brazil, the Ge Luote (Galoter) of Ai Shaniya
Stove and the ATP stove etc. of Australia.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 powdery oil shale type of furnace as raw material, containing a large amount of dirt in pyrolysis oil, cause pyrolysis oil to be difficult to effectively and utilize,
Pyrolysis oil is worth the problems such as the highest.Therefore, all simple system of a kind of high-effective dust-removing, system structure and technological process how is designed
Become the problem that this area needs solution badly.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, design and develop a kind of oil shale heat accumulating type down-flow fluidized bed using ECT pyrolysis and cracking
Response system, this response system can carry out being pyrolyzed and cracking two kinds of operations, and the oil gas that pyrolysis chamber produces can enter cracking room and enter
Row deep pyrolytic, is cracked into the gaseous hydrocarbons of little molecule by the tar molecules of macromole, and this reactor can produce substantial amounts of cracking
Gas, thus avoid 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 used in the present invention is:
In view of this, the invention provides a kind of oil shale pyrolysis and cracking system.According to embodiments of the invention, this system bag
Include: pyrolysis hopper；First feed arrangement, described first feed arrangement is connected with described pyrolysis hopper；Pyrolysis and cracking reactor,
Including: charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, described charging aperture is arranged on the roof of described pyrolysis chamber, institute
State cracking gas outlet to be arranged on the sidewall of described cracking room, and: heat accumulation type radiant tube, described heat accumulation type radiant tube is along described
The short transverse multi-tier arrangement of pyrolysis reactor is inside described pyrolysis chamber and described cracking room, and every layer has many along level side
To the described heat accumulation type radiant tube arranged；Heat insulation brick wall, described heat insulation brick wall is arranged at the 2/3 of reactor transverse width, perpendicular
Directly through in described reactor, the inner space of described reactor is separated into described pyrolysis chamber and described cracking room；Even
Logical component, described communication member is arranged on the bottom of described heat insulation brick wall, for the oil gas produced pyrolysis chamber, by described company
Logical component, is passed into described cracking room；Spray column, described spray column is connected with the outlet of described cracking gas；Fuel cartridge, described combustion gas
Tank is connected with described spray column.
Inventor finds, this response system simple in construction according to embodiments of the present invention, easy to operate, Temperature Distribution is equal
Even, heats is good, the oil gas that pyrolysis chamber produces, and can carry out deep pyrolytic at cracking room, and the tar molecules of macromole is cracked into
The gaseous hydrocarbons of little molecule, this response system can produce substantial amounts of cracking gas product, it is to avoid the problem of pyrolysis oil dust-laden, really
The clean and effective achieving Fossil fuel utilizes.Additionally, can carry out two kinds of operations in a body of heater, uniting two into one, shale utilizes
Rate is high, saves construction cost and floor space.And this reactor have employed heat accumulation type radiant tube heating technique without gas, solid heat
Carrier heats, and simplifies system process while improve the thermal efficiency of reactor.
According to embodiments of the invention, described communication member is the hole including multiple hole being arranged on described heat insulation brick wall
Band.
According to embodiments of the invention, the thickness of described heat insulation 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 embodiments of the invention, described communication member is on described heat insulation brick wall longitudinal length, is positioned at lower position
Opening, it is preferred that the height of described opening is 3-15cm.
According to embodiments of the invention, this system may further include: gasification furnace, described gasification furnace one end and described storage
The fuel gas inlet of hot type radial canal is connected, and the other end is connected with described semicoke conveyer device.
According to embodiments of the invention, this system can further include: loading hopper；Second feed arrangement, itself and institute
State loading hopper to be connected；Drying device, its respectively with the exhanst gas outlet on described second feed arrangement and described heat accumulation type radiant tube
Connect；Gas-solid separating device, it is connected with described drying device and described pyrolysis hopper respectively；Exhaust gas cleaner, its with
Described gas-solid separating device is connected.
According to embodiments of the invention, described pyrolysis hopper is connected with described charging aperture by described first feed arrangement；
Further comprising semicoke outlet, it is arranged on the bottom of described pyrolysis chamber, the outlet of described semicoke and described semicoke conveyer device
Connect.
In another aspect of the present invention, the invention provides one and utilize foregoing system to be pyrolyzed and crack
Method.According to embodiments of the invention, the method comprises the following steps: Oil Shale Particles is filled by a. by described first charging
Put and described charging aperture joins in described reactor, in the described pyrolysis chamber of described reactor, complete pyrolytic process；B. heat
The oil gas that solution produces, by the described communication member arranged on the heat insulation brick wall of described reactor, enters into the described of described reactor
Cracking room；C. the oil gas being pyrolyzed generation enters in described cracking room, completes cracking process, produces cracking gas；The most described cracking
Gas enters in described spray column by the outlet of described cracking gas, and described cracking gas is carried out purified treatment；E. through purification
Clean cracking gas enters in described fuel cartridge and stores.
According to embodiments of the invention, in described step a, described Oil Shale Particles enters from described in described reactor top
Material mouth joins in described reactor, and is broken up by the described heat accumulation type radiant tube in described reactor, and pyrolysis char is from described
The semicoke outlet of reactor bottom is discharged;In described step a, described Oil Shale Particles is by described in described reactor pyrolysis chamber
Heat accumulation type radiant tube is heated to 500-600 DEG C, and in described step b, described pyrolysis oil gas is by the institute in described reactor cracking room
State heat accumulation type radiant tube and be heated to 650-900 DEG C.
According to embodiments of the invention, the granularity of described Oil Shale Particles is below 20mm.
The present invention 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 deep pyrolytic at cracking room, greatly
The tar molecules of molecule is cracked into the gaseous hydrocarbons of little molecule, and this response system can produce substantial amounts of cracking gas product, it is to avoid
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 simple in construction is easy to operate, uniformity of temperature profile,
Heats is good；
3) two kinds of operations can be carried out in a body of heater, unite two into one, save construction cost and floor space；
4) can process 20mm particles below oil shale, shale utilization rate is high, is suitable to promote.
Accompanying drawing explanation
Fig. 1 is the structure chart that the present invention is pyrolyzed with cracking system.
Fig. 2 is the structure of reactor figure that the present invention is pyrolyzed with cracking system.
Fig. 3 is the front view of the heat insulation brick wall of the present invention.
Wherein, 1, loading hopper；2, pneumatic conveyer dryer；3, thermal storage type moving bed reactor；4, it is dried cyclone separator；5, heat
Solve hopper；6, tail gas air-introduced machine；7, exhaust gas cleaner；8, chimney；9, feeding screw；10, spray column；11, combustion gas air inducing
Machine；12, fuel cartridge；13, gasification furnace；14, conveying worm；15, heat accumulation type radiant tube；16, heat insulation brick wall；17, communication member；
18, pyrolysis chamber；19, cracking room；20, cracking gas outlet；21, charging aperture；22, fuel gas inlet；23, exhanst gas outlet；24, air enters
Mouthful；25, semicoke outlet.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with specific embodiment to this
Invention is described in further detail.The embodiments described below is exemplary, is only used for explaining the present invention, and is not understood that
For limitation of the present invention.Unreceipted concrete technology or condition in embodiment, according to the skill described by the document in this area
Art or condition or carry out according to product description.
The invention provides a kind of oil shale pyrolysis and cracking system.According to embodiments of the invention, shown in reference Fig. 1,
This system includes: pyrolysis hopper 5；First feed arrangement 9, described first feed arrangement is connected with described pyrolysis hopper 5；Pyrolysis and
Cracking reactor 3, comprising: charging aperture 21, pyrolysis chamber 18, cracking room 19, cracking gas outlet 20, heat accumulation type radiant tube 15, every
Hot brick wall 16 and communication member 17, wherein, described charging aperture is arranged on the roof of described pyrolysis chamber, and the outlet of described cracking gas sets
Putting on the sidewall of described cracking room, described heat insulation brick wall is vertically through in described reactor, by described reactor
Space, portion is separated into described pyrolysis chamber and described cracking room, and described communication member is arranged on the bottom of described heat insulation brick wall, is used for
The oil gas produced pyrolysis chamber, by described communication member, is passed into described cracking room；Spray column 10, described spray column and institute
State cracking gas outlet to connect；Fuel cartridge 12, described fuel cartridge is connected with described spray column.
Inventor finds, this response system simple in construction according to embodiments of the present invention, easy to operate, Temperature Distribution is equal
Even, heats is good, the oil gas that pyrolysis chamber produces, and can carry out deep pyrolytic at cracking room, and the tar molecules of macromole is cracked into
The gaseous hydrocarbons of little molecule, this response system can produce substantial amounts of cracking gas product, it is to avoid the problem of pyrolysis oil dust-laden, really
The clean and effective achieving Fossil fuel utilizes.Additionally, can carry out two kinds of operations in a body of heater, uniting two into one, shale utilizes
Rate is high, saves construction cost and floor space.And this reactor have employed heat accumulation type radiant tube heating technique without gas, solid heat
Carrier heats, and simplifies system process while improve the thermal efficiency of reactor.
According to a particular embodiment of the invention, it is adaptable to the particle diameter of the oil shale of this reactor is not particularly limited, at this
In some preferred embodiments of invention, the oil shale that this reactor uses is particle diameter 20mm particles below and the combustion of powdery fossil
Material, thus, it is possible to make full use of granule wax shale, resource utilization is high, and can solve the problem that bulk deposition pollutes asking of environment
Topic.
According to a particular embodiment of the invention, it is adaptable to the type of furnace of this system is not particularly limited, can be that heat accumulating type moves
Movable bed 3 can also be other type, such as non-heat accumulating type or non-moving type etc., as long as can being divided into by the integration of heat insulation brick wall
Pyrolysis chamber and cracking room.
According to a particular embodiment of the invention, with reference to shown in Fig. 2, inside reactor has the height along described pyrolysis reactor
Direction multi-tier arrangement is at the heat accumulation type radiant tube within described pyrolysis chamber and described cracking room, and every layer of heat accumulation type radiant tube has many
Root heat accumulation type radiant tube, and horizontally spaced layout.According to embodiments of the invention, divide in described pyrolysis chamber and cracking room
Not distributed at least described heat accumulation type radiant tube, it is preferred that described at least heat accumulation type radiant tube is uniformly distributed.Accumulation of heat
Formula radial canal can be effective to heat the oil gas in pyrolysis material and cracking room so that it is carries out being pyrolyzed and cracking reaction,
Specifically, combustible gas and air can be passed through in heat accumulation type radiant tube, make combustible gas burning realize pyrolysis material and add hot merit
Energy.This reactor have employed heat accumulation type radiant tube heating technique and heats without gas, solid heat carrier, and uniformity of temperature profile adds thermal effect
The best, response system simple in construction, easy to operate, simplify system process while improve the thermal efficiency of reactor.
In the reactor, oil shale moves from top to bottom, the unidirectional heat accumulating type the being evenly arranged radiation arranged in pyrolysis chamber
Oil shale can be broken up and make it be uniformly distributed by pipe, and oil shale stops 1-50 minute the most from top to bottom, and is heated to
500-600 DEG C, tube wall temperature utilizes gas control valve to control 500～700 DEG C of scopes, 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 utilizes gas control valve to control, 650～900 DEG C of scopes, to complete to split
Solution preocess, the tar molecules of macromole is cracked into the gaseous hydrocarbons of little 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 embodiments of the invention, the shape of heat accumulation type radiant tube
It is not particularly limited, in some embodiments of the invention, can be breaing up of cylinder, the most beneficially oil shale, it is achieved
Miscella shale in the reactor dispersed.
According to a particular embodiment of the invention, heat insulation brick wall is arranged in reactor, it is preferred that be positioned at reactor laterally wide
At the 2/3 of degree, the thickness of heat insulation brick wall is 5-15cm, and heat insulation brick wall is vertically through in reactor, by the inside of reactor
Space is separated into pyrolysis chamber and cracking room, and this structure makes to be provided with pyrolysis chamber and cracking room in a body of heater, and is produced from pyrolysis chamber
Raw oil gas, can enter cracking room and carry out deep pyrolytic, the tar molecules of macromole is cracked into the gaseous hydrocarbons of little molecule,
Produce substantial amounts of cracking gas, thus avoid the problem producing pyrolysis oil dust-laden.Further, two kinds of works can be carried out in a body of heater
Industry, unites two into one, and saves construction cost and floor space.
According to a particular embodiment of the invention, the concrete kind of communication member is not particularly limited, as long as can will be pyrolyzed
Room connects with cracking room, thus the oil gas that pyrolysis chamber produces is passed into cracking room.In some embodiments of the invention,
When Fig. 3 is in terms of the from left to right of reactor, the front view of heat insulation brick wall, as it is shown on figure 3, communication member can be arranged on heat insulation
The pore area including porous on brick wall, under preferable case, the height of described pore area is 3-15cm, a diameter of 1-3cm in described hole.
Communication member can also be on heat insulation brick wall longitudinal length, is positioned at the opening of lower position, under preferable case, and the height of described opening
Degree is 3-15cm.
According to embodiments of the invention, this system may further include: respectively with the fuel gas inlet of heat accumulation type radiant tube
The gasification furnace being connected with semicoke conveyer device.Thus, it is possible to utilize semicoke conveyer device pyrolysis chamber will to be pyrolyzed the semicoke of generation
Being delivered in gasification furnace, semicoke is carried out gasification process, to obtain combustible gas and lime-ash, the combustible gas obtained can be passed through accumulation of heat
In formula radial canal, in heat accumulation type radiant tube, it is passed through air simultaneously, makes combustible gas burning that the material in pyrolysis chamber to be heated.
Thus, it is possible to semicoke is sufficiently utilized, do not cause waste, good economy performance.
According to a particular embodiment of the invention, described reactor is provided with fuel gas inlet 22, air intake 24 and flue gas and goes out
Mouth 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 discharge cigarette
Gas, air intake is connected with source of the gas and heat accumulation type radiant tube respectively, for the air that source of the gas produces is passed through heat accumulation type radiant tube
In.
According to a particular embodiment of the invention, this system may further include: loading hopper 1；Be connected with loading hopper
Two feed arrangements 9；Be connected with the exhanst gas outlet 23 on described second feed arrangement and described heat accumulation type radiant tube respectively is dried
Device 2；The gas-solid separating device 4 being connected with described drying device and described pyrolysis hopper respectively；Fill with described gas solid separation
Put the exhaust gas cleaner 7 being connected.Thus, it is possible to the oil shale addition in loading hopper is dried dress by the second feed arrangement
In putting, in drying device, oil shale is from the flue gas of the heat accumulation type radiant tube in pyrolysis chamber, (temperature about 200～250 is taken the photograph
Family name's degree) effect under be dried, the mixture of the most dried oil shale and flue gas enters gas-solid separating device, and separation obtains
The flue gas (temperature is about 70～110 degrees Celsius) obtained enters in exhaust gas cleaner and carries out purified treatment, to realize qualified discharge,
Separate the pyrolysis material obtained to be delivered to be pyrolyzed in hopper, be used for carrying out pyrolytic reaction.
According to embodiments of the invention, the concrete kind of the second pay-off is not particularly limited, as long as being applicable to add
Oil shale in hopper is delivered in drying device.In some embodiments of the invention, the second pay-off can be
Feeding screw 9.Thereby, it is possible to realize the Automatic Conveying to oil shale, and conveying capacity is controlled, and device structure is simple, operation
Convenient.
According to embodiments of the invention, the concrete kind of drying device is not particularly limited, as long as being capable of oil page
Being dried and the function of preheating of rock.In some embodiments of the invention, drying device can be pneumatic conveyer dryer 2, by
This, oil shale is dried under the effect of flue gas and promotes, and the mixture of dried oil shale and flue gas is discharged air-flow and done
Dry device 2, beneficially subsequent step are carried out.In drying device, while pyrolysis material is dried, also achieve preheating
Function, is conducive to improving the flue gas using heat accumulation type radiant tube to discharge in the speed of follow-up pyrolytic reaction and efficiency, and pyrolysis chamber
Oil shale it is dried and preheats, it is achieved that the comprehensive utilization of heat energy, effectively reducing energy consumption, having reached the mesh of energy-conserving and environment-protective
's.
According to embodiments of the invention, the concrete kind of gas-solid separating device is not particularly limited, as long as can be by oil page
Rock separates with flue gas.In some embodiments of the invention, gas-solid separating device can be to be dried cyclone separator 4, by
Pyrolysis material and flue gas can be separated by quickly and efficiently, and good separating effect, and simple to operation, cost is relatively low.
According to embodiments of the invention, can also be further provided with between gas-solid separating device and exhaust gas cleaner
Tail gas air-introduced machine 6, the flue gas separating acquisition in gas-solid separating device can be delivered to tail gas by tail gas air-introduced machine quickly and efficiently
In purifier, be conducive to improving work efficiency.
According to embodiments of the invention, this pyrolysis plant is also provided with the chimney 8 being connected with exhaust gas cleaner, warp
Cross the flue gas after exhaust gas cleaner purified treatment to empty through chimney, thus, be conducive to protecting environment, reduce and pollute.
According to embodiments of the invention, this system can also include: can also enter between spray column 10 and fuel cartridge 12
One step is provided with combustion gas air-introduced machine 11, and combustion gas air-introduced machine can purify the natural of acquisition by passing through in spray column quickly and efficiently
Gas is delivered in fuel cartridge store, and further, the cracking gas obtained can be further used for preparing LNG or LNP.Invention
People finds, utilizes this system can significantly improve the yield of cracking gas, has enough gas for producing liquefied natural gas (LNG)
Or liquefied petroleum gas (LPG), good in economic efficiency.
According to a particular embodiment of the invention, described pyrolysis hopper is connected with charging aperture by the first feed arrangement；Enter one
Step also includes that semicoke exports, and it is arranged on the bottom of described pyrolysis chamber, and the outlet of described semicoke is connected with described semicoke conveyer device.
The concrete kind of the first feed arrangement is not particularly limited, as long as can be effectively delivered into instead by the oil shale in pyrolysis hopper
Answer in device.In some embodiments of the invention, the first feed arrangement can be with feeding screw.Thereby, it is possible to realize right
The Automatic Conveying of oil shale, conveying capacity is controlled, and device structure is simple, easy to operate.The concrete kind of semicoke conveyer device
Being not particularly limited, include but not limited to star or conveying worm, under preferable case, semicoke conveyer can be helical feed
Machine 14.Thereby, it is possible to realize the Automatic Conveying to semicoke, and conveying capacity is controlled, and device structure is simple, easy to operate.
In another aspect of the present invention, the invention provides one and utilize foregoing system to be pyrolyzed and crack
Method.According to embodiments of the invention, the method may comprise steps of:
A. Oil Shale Particles is passed through described first feed arrangement and the charging aperture addition being arranged on the roof of described pyrolysis chamber
In reactor, completing pyrolytic process in the described pyrolysis chamber of described reactor, pyrolysis char is from the semicoke of reactor bottom
Outlet is discharged, and discharges through semicoke conveyer device.
According to a particular embodiment of the invention, it is adaptable to the particle diameter of the oil shale of this reactor is not particularly limited, at this
In some preferred embodiments of invention, the oil shale that this reactor uses is particle diameter 20mm particles below and the combustion of powdery fossil
Material, thus, it is possible to make full use of granule wax shale, resource utilization is high, and can solve the problem that bulk deposition pollutes asking of environment
Topic.
According to a particular embodiment of the invention, the concrete kind of the first feed arrangement is not particularly limited, as long as can be by
Oil shale in pyrolysis hopper is effectively delivered in reactor.In some embodiments of the invention, the first charging dress
Putting can be with feeding screw.Thereby, it is possible to realize the Automatic Conveying to oil shale, conveying capacity is controlled, and device structure is simple,
Easy to operate.
According to a particular embodiment of the invention, in described pyrolysis chamber, distributed at least described heat accumulation type radiant tube, excellent
Choosing, described at least heat accumulation type radiant tube is uniformly distributed, concrete, and oil shale can be broken up by unidirectional heat accumulation type radiant tube
Making it be uniformly distributed, oil shale stops 1-50 minute the most from top to bottom, and is heated to 500-600 DEG C, tube wall temperature
Gas control valve is utilized to control, 500～700 DEG C of scopes, to complete pyrolytic process.
According to embodiments of the invention, before oil shale is added pyrolysis hopper, it is also possible in advance oil shale is carried out
Dried, it is for instance possible to use oil shale is dried and the pre-heat treatment by the flue gas that heat accumulation type radiant tube is discharged, thus,
The moisture in oil shale can be removed, be conducive to improving pyrolysis efficiency.According to embodiments of the invention, this method for pyrolysis is all right
Including dried flue gas being carried out the step of purified treatment, so that tail gas qualified discharge, reduce environmental pollution.
According to embodiments of the invention, the concrete kind of semicoke conveyer device is not particularly limited, and includes but not limited to star
Shape or conveying worm, under preferable case, semicoke conveyer can be conveying worm.Thereby, it is possible to realize to semicoke from
Dynamicization carries, and conveying capacity is controlled, and device structure is simple, easy to operate.
B. it is pyrolyzed the oil gas of generation by the described communication member arranged on the heat insulation brick wall of described reactor, enters into described
The described cracking room of reactor.
According to a particular embodiment of the invention, heat insulation brick wall is arranged in reactor, it is preferred that be positioned at reactor laterally wide
At the 2/3 of degree, the thickness of heat insulation brick wall is 5-15cm, and heat insulation brick wall is vertically through in reactor, by the inside of reactor
Space is separated into pyrolysis chamber and cracking room, and this structure makes to be provided with pyrolysis chamber and cracking room in a body of heater, and is produced from pyrolysis chamber
Raw oil gas, can enter cracking room and carry out deep pyrolytic, the tar molecules of macromole is cracked into the gaseous hydrocarbons of little molecule,
Produce substantial amounts of cracking gas, thus avoid the problem producing pyrolysis oil dust-laden.Further, two kinds of works can be carried out in a body of heater
Industry, unites two into one, and saves construction cost and floor space.
According to a particular embodiment of the invention, the concrete kind of communication member is not particularly limited, as long as can will be pyrolyzed
Room connects with cracking room, thus the oil gas that pyrolysis chamber produces is passed into cracking room.In some embodiments of the invention,
When Fig. 3 is in terms of the from left to right of reactor, the front view of heat insulation brick wall, as it is shown on figure 3, communication member can be arranged on heat insulation
The pore area including porous on brick wall, under preferable case, the height of described pore area is 3-15cm, a diameter of 1-3cm in described hole.
Communication member can also be on heat insulation brick wall longitudinal length, is positioned at the opening of lower position, under preferable case, and the height of described opening
Degree is 3-15cm.
C. the oil gas being pyrolyzed generation enters in described cracking room, completes cracking process, produces cracking gas.
According to a particular embodiment of the invention, in described cracking room, distributed at least described heat accumulation type radiant tube, excellent
Choosing, described at least heat accumulation type radiant tube is uniformly distributed, concrete, and is heated to 650-900 DEG C, and tube wall temperature utilizes combustion
Gas governor valve control, 650～900 DEG C of scopes, completes thermal cracking processes, and the tar molecules of macromole is cracked into the gas of little molecule
State hydro carbons, produces substantial amounts of cracking gas, it is to avoid the problem of pyrolysis oil dust-laden, is truly realized the clean and effective profit of oil shale
With.
The most described cracking gas enters into described spray column by the cracking gas outlet being arranged on the sidewall of described cracking room
In, described cracking gas is carried out purified treatment.
E. the clean cracking gas through purifying enters in described fuel cartridge and stores.
According to embodiments of the invention, this system can also include: can also be further between spray column and fuel cartridge
It is provided with combustion gas air-introduced machine 11, the natural gas that combustion gas air-introduced machine 11 can will obtain in spray column quickly and efficiently through purification
Being delivered in fuel cartridge store, further, the cracking gas obtained can be further used for preparing LNG or LNP.Inventor
Find, utilize this system can significantly improve the yield of cracking gas, have enough gas for produce liquefied natural gas (LNG) or
Liquefied petroleum gas (LPG), good in economic efficiency.
Inventor finds, the method according to embodiments of the present invention, it is possible to 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 at cracking room, the tar molecules of macromole
It is cracked into the gaseous hydrocarbons of little molecule, produces substantial amounts of cracking gas product, it is to avoid the problem of pyrolysis oil dust-laden, be truly realized
The clean and effective of Fossil fuel utilizes.
Below the oil shale pyrolysis of the present invention and the specific works process of cracking system and method are described in detail, tool
Body is as follows:
First, the raw shale oil of granularity≤20mm is added in loading hopper 1, utilizes the second feed arrangement will be stored in loading hopper
Raw shale oil in 1 adds in pneumatic conveyer dryer 2, the cigarette of 200～250 degrees Celsius simultaneously discharged in heat accumulation type radiant tube 15
Gas is passed through in pneumatic conveyer dryer 2, and raw shale oil is dried under the effect of flue gas and promotes, then flue gas and raw oil page
The mixture of rock discharges pneumatic conveyer dryer, enters in gas-solid separating device, and the flue gas that separation obtains (take the photograph by temperature about 70～110
Family name's degree) discharge gas-solid separating device 4, and under the effect of tail gas air-introduced machine 6, enter exhaust gas cleaner 7, carry out at purification
Reason, purifies the flue gas meeting discharge standard obtained and empties through chimney 8, the raw shale oil of isolated in gas-solid separating device
Discharge gas-solid separating device, and enter in pyrolysis hopper, then utilize the raw material that the first pay-off 9 will be stored in pyrolysis material
Oil shale adds in pyrolysis reactor, moves from top to bottom, stops about 1～50 minute, at the heat accumulation type radiant tube being uniformly arranged
Breaing up with under heat effect of (tube wall temperature being about 500～700 degrees Celsius), oil shale thermally equivalent is warming up to 500～600 and takes the photograph
Family name's degree, completes pyrolytic reaction, obtains being pyrolyzed oil gas and semicoke, and the pyrolysis oil gas obtained is by the communication member on heat insulation brick wall 16
17 entrance cracking rooms carry out deep pyrolytic, semicoke or other solid impurities and are delivered in gasification furnace enter by semicoke conveyer device 14
Row gasification process, obtains combustible gas and is passed through heat accumulation type radiant tube for heating the oil shale in pyrolysis reactor, gasification
Process the lime-ash obtained and discharge gasification furnace 13, cracking room cracks the cracked gas obtained and enters spray column by cracking gas outlet
10 purify, and purified gas enters fuel cartridge 12 and stores, and can be further used for preparing LNG or LPG.
Embodiments of the invention are described below in detail.
Case study on implementation: utilize thermal storage type moving bed pyrolysis and cracking system that Longkou oil shale is processed, the base of raw material
Plinth data are shown in Table 1.
Table 1: Longkou oil shale basic data
Utilizing this system to process Longkou oil shale, the gas products productivity obtained is 15%, is pyrolyzed gained far above laboratory aluminum rice steamer
The factor of created gase arrived, 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 is high.
In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the
One ", the feature of " second " can express or implicitly include one or more this feature.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects
Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score permissible
It is that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be arbitrary
Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the technology of this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by personnel
And combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, revises, replaces and modification, simultaneously for one of ordinary skill in the art, according to the think of of the application
Think, the most all will change.
Claims (10)
1. an 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
On the roof of described pyrolysis chamber, the outlet of described cracking gas is arranged on the sidewall of described cracking room；And:
Heat accumulation type radiant tube, described heat accumulation type radiant tube along the short transverse multi-tier arrangement of described pyrolysis reactor 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 insulation brick wall, described heat insulation brick wall is arranged at the 2/3 of reactor transverse width, vertically through in described reactor
In, 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 insulation brick wall, for the oil gas produced 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.
System the most according to claim 1, it is characterised in that described communication member is to be arranged on described heat insulation brick wall
Pore area including multiple holes.
System the most according to claim 2, it is characterised in that the thickness of described heat insulation brick wall is 5-15cm, described pore area
Height be 3-15cm, a diameter of 1-3cm in described hole.
System the most according to claim 1, it is characterised in that described communication member is described heat insulation brick wall longitudinal length
On, it is positioned at the opening of lower position, it is preferred that the height of described opening is 3-15cm.
5. according to the system according to any one of claim 1-4, it is characterised in that farther 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 described semicoke conveyer device.
6. according to the system according to any one of claim 1-4, 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. according to the system according to any one of claim 1-4, it is characterised in that described pyrolysis hopper enters by described first
Material device is connected with described charging aperture；Further comprising semicoke outlet, it is arranged on the bottom of described pyrolysis chamber, described semicoke
Outlet is connected with described semicoke conveyer device.
8. utilize the method that the system according to any one of claim 1-7 carries out oil shale pyrolysis and cracking, its feature
It is, comprises the following steps:
A. Oil Shale Particles is joined in described reactor by described first feed arrangement and described charging aperture, described instead
Answer in the described pyrolysis chamber of device and complete pyrolytic process；
B. it is pyrolyzed the oil gas of generation by the described communication member arranged on the heat insulation brick wall of described reactor, enters into described reaction
The described cracking room of device；
C. the oil gas being pyrolyzed generation enters in described cracking room, completes cracking process, produces cracking gas；
The most described cracking gas enters in described spray column by the outlet of described cracking gas, carries out described cracking gas at purification
Reason；
E. the clean cracking gas through purifying enters in described fuel cartridge and stores.
Method the most according to claim 8, it is characterised in that in described step a, described Oil Shale Particles is from described reaction
The described charging aperture on device top joins in described reactor, and is broken up by the described heat accumulation type radiant tube in described reactor,
Pyrolysis char exports from the semicoke of described reactor bottom and discharges；In described step a, described Oil Shale Particles is by described reactor
Described heat accumulation type radiant tube in pyrolysis chamber is heated to 500-600 DEG C, and in described step b, described pyrolysis oil gas is by described reaction
Described heat accumulation type radiant tube in device cracking room is heated to 650-900 DEG C.
Method the most according to claim 8, it is characterised in that the granularity of described Oil Shale Particles is below 20mm.
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| CN201610332300.9A CN105885900B (en) | 2016-05-19 | 2016-05-19 | A kind of oil shale pyrolysis and cracking system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080029434A1 (en) * | 2000-01-28 | 2008-02-07 | John Brewer | Multi zone cracking furnace |
| CN201694994U (en) * | 2009-06-23 | 2011-01-05 | 北京联合创业环保工程有限公司 | Clock-type biomass thermal cracking integrated equipment |
| CN205974386U (en) * | 2016-05-19 | 2017-02-22 | 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 CN201610332300.9A patent/CN105885900B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080029434A1 (en) * | 2000-01-28 | 2008-02-07 | John Brewer | Multi zone cracking furnace |
| CN201694994U (en) * | 2009-06-23 | 2011-01-05 | 北京联合创业环保工程有限公司 | Clock-type biomass thermal cracking integrated equipment |
| CN205974386U (en) * | 2016-05-19 | 2017-02-22 | 北京神雾环境能源科技集团股份有限公司 | Oil shale pyrolysis and cracking system |
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