CN107163968A - A kind of pyrolysis installation and method for pyrolysis for producing coke breeze and tar light oil - Google Patents
A kind of pyrolysis installation and method for pyrolysis for producing coke breeze and tar light oil Download PDFInfo
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- CN107163968A CN107163968A CN201710432714.3A CN201710432714A CN107163968A CN 107163968 A CN107163968 A CN 107163968A CN 201710432714 A CN201710432714 A CN 201710432714A CN 107163968 A CN107163968 A CN 107163968A
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- pyrolysis
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- 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
- C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material
- C10B55/02—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials
- C10B55/04—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials with moving solid materials
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- 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
- C10B57/02—Multi-step carbonising or coking processes
Abstract
The invention discloses a kind of pyrolysis installation and method for producing coke breeze and tar light oil, the pyrolysis installation includes multistage pyrolysis reactor, Semi-coke cooling device and semicoke collecting tank;The multistage pyrolysis reactor includes some pyrolysis reactors, the pyrolysis gas outlet connection of pyrolysis gas import and next stage pyrolysis reactor in addition to chopped-off head pyrolysis reactor and final stage pyrolysis reactor, the pyrolysis gas inlet pipeline connection of the material outlet and next stage pyrolysis reactor of pyrolysis reactor, the pyrolysis gas import connection of its pyrolysis gas outlet and upper level pyrolysis reactor;The material outlet of the final stage pyrolysis reactor and Semi-coke cooling device connection, material outlet and semicoke the collecting tank connection of the Semi-coke cooling device.The present invention can finally give clean coke breeze, tar light oil and steam;And system and device is simple, energy utilization efficiency is high.
Description
Technical field
The invention belongs to derived energy chemical field, particularly relate to a kind of pyrolysis installation for producing coke breeze and tar light oil and
Method.
Background technology
Coal accounts for more than the 75% of China energy consumption structure, wherein more than 80% is used to directly burn, and more than 50%
Used for Industrial Boiler, Industrial Stoves and the Domestic coal stove of directly burning lump coal, still, the Land use systems directly burnt are caused
Coal utilization efficiency is low, pollutant emission is exceeded.In addition, with the raising of mining mechanization degree, the ratio of lump coal by 52~
60% is down to 20~38%, has aggravated lump coal shortage, and also result in fine coal and largely overstock for a long time.Especially substantial amounts of low-order coal
Fine coal, due to the shortcomings of its moisture is high, calorific value is low and easily breaks up and is difficult transport, causing to be difficult to utilize, because
How this, efficiently utilize low-order coal fine coal, as current coal utilization field urgent problem.Moreover, with the country
Energy demand increasingly increases, and the synthesis trans-utilization of low-order coal, especially low-order coal fine coal will certainly will be needed as future source of energy
The powerful support asked.
Coal is processed into the chemical process of semicoke, low temperature tar and oven gas using pyrolysis way, is that current low-order coal adds
One of effective way of work processing.Pyrolysis gas, tar and semicoke are obtained by being pyrolyzed, pyrolysis gas and tar can be directly as clear
Clean fuel combustion, can also be handled by following process, produce chemical products with high added-value, realize coal classified utilization and cleaning
Efficient Conversion.At present, industrially for bulky grain (>6mm) the low temperature pyrogenation of coal, generally carries out heat using the technique of upright furnace
Solution, for example, mature semi-coke production technology, it realizes the solid energy to gas, liquid energy and solid industrial chemicals
Efficient Conversion, for the utilization of resources, open high efficient and flexible utilize resource approach.But, produce the raw material of semi-coke
For block bituminous coal or block lignite, and fine coal raw material causes material bed poor air permeability, and easily blocks the stomata of tracery wall, influence
Normal production, therefore semi-coke technique limits the scope that raw material is used.Moreover, for below 6mm pulverized coal pyrolysis, industry at present
On also not yet have maturation technique.
The content of the invention
An object of the present invention is a kind of pyrolysis installation for producing coke breeze and tar light oil of offer, and the device can be real
The pyrolysis of existing pulverized solid fuel obtains pyrolysis oil gas and pyrolysis char.Another object of the present invention is to provide a kind of production powder
The method for pyrolysis of burnt and tar light oil, can obtain clean coke breeze, steam and tar light oil, and realize anti-using this method
The recovery of heat in answering.
The present invention is to realize hot cigarette that pulverized solid fuel is produced in multistage strong eddy flow pyrolysis reactor by boiler combustion
Gas quickly heats generation pyrolytic reaction, generation pyrolysis oil gas and pyrolysis char;Light components are trapped by tar in pyrolysis oil gas,
Obtain tar light oil;The heavy component of collection at large enters boiler combustion in pyrolysis oil gas, produces heat smoke and steam;High warm
Flue gas is exchanged heat as heat carrier and solid material and pyrolysis char counter current contacting, and solid material and pyrolysis char feeding are revolved by force
Stream pyrolysis reactor is pyrolyzed;Pyrolysis char can obtain coke breeze by cooling down and reclaiming heat.Using the dress of the technology of the present invention
Put and method, it is final to obtain clean coke breeze, steam and tar light oil.
Strong eddy flow pyrolysis reactor of the present invention, is characterized in the flue gas that will be produced after burning with the shape of high-speed jet
Formula is tangentially sprayed into high temperature pyrolysis device, forms strong whirlwind vortex;Solid material is before pyrolysis reactor is entered, in flue
It is suspended in heat smoke, while carrying out heat exchange, is then brought into by heat smoke in pyrolysis reactor in road;, solid material entrance
After pyrolysis apparatus, continuation is mixed with high-temperature flue gas, heated, occurring pyrolytic reaction.
To achieve the above object, the invention provides a kind of pyrolysis installation for producing coke breeze and tar light oil, the pyrolysis
Device includes multistage pyrolysis reactor, Semi-coke cooling device and semicoke collecting tank;
The multistage pyrolysis reactor includes some pyrolysis reactors, except chopped-off head pyrolysis reactor and final stage pyrolysis reactor
Outer pyrolysis gas import and the pyrolysis gas outlet connection of next stage pyrolysis reactor, the material outlet and next stage of pyrolysis reactor
The pyrolysis gas inlet pipeline connection of pyrolysis reactor, the pyrolysis gas import of its pyrolysis gas outlet and upper level pyrolysis reactor connects
Connect;The material outlet of the final stage pyrolysis reactor and Semi-coke cooling device connection, the material of the Semi-coke cooling device
Outlet and the connection of semicoke collecting tank.
In said apparatus, the multistage pyrolysis reactor be used for pulverized solid fuel pyrolysis, produce pyrolysis oil gas and
Pyrolysis char;The Semi-coke cooling device is used to cool down the pyrolysis char of generation, and carries out heat recovery;The semicoke
Collecting tank is used to collect to be produced by final stage pyrolysis reactor, and the powder semicoke product cooled down through Semi-coke cooling device;Produce
Pyrolysis char is admitted to next stage pyrolysis reactor after the pyrolysis gas mixed heat transfer through and into next stage pyrolysis reactor.
As a kind of finer selection of said apparatus, the series of the multistage pyrolysis reactor is 3-6.
It is used as a kind of finer selection of said apparatus, pyrolysis gas outlet and tar the trapping dress of the chopped-off head pyrolysis reactor
The gas feed connection put.The tar trapping system is used to trap by the pyrolysis oil gas of multistage strong eddy flow pyrolysis reactor generation
In light components, obtain tar light oil.
As a kind of finer selection of said apparatus, the gas vent and boiler of the tar capturing device are connected, described
The smoke inlet connection of the exhanst gas outlet of boiler and the final stage pyrolysis reactor.The boiler is used to be pyrolyzed heavy group in oil gas
The burning divided, while producing heat smoke and steam;Wherein, heat smoke is that pyrolysis of the solid fuel in multistage pyrolysis reactor is carried
For institute's calorific requirement.
As a kind of finer selection of said apparatus, the pyrolysis gas outlet and boiler of the chopped-off head pyrolysis reactor are connected,
The smoke inlet connection of the exhanst gas outlet of the boiler and the final stage pyrolysis reactor.The boiler is used to be pyrolyzed weight in oil gas
The burning of matter component, while producing heat smoke and steam;Wherein, heat smoke is heat of the solid fuel in multistage pyrolysis reactor
Solution provides institute's calorific requirement.
As a kind of finer selection of said apparatus, the material inlet and feed bin of the chopped-off head pyrolysis reactor are connected, institute
Stating feed bin is used to store pending powder solid material.
Present invention also offers the method for pyrolysis for being used to produce coke breeze and tar light oil based on said apparatus, including:
Pulverized solid fuel elder generation and the pyrolysis gas counter current contacting from next stage pyrolysis reactor, and in the effect of pyrolysis gas
Under be admitted to the chopped-off head pyrolysis reactor of multistage pyrolysis reactor, and continue in chopped-off head pyrolysis reactor by the pyrolysis of next stage
Gas is heated, and occurs pyrolytic reaction, generation pyrolysis oil gas and pyrolysis char, and pyrolysis char enters next stage pyrolysis reactor;
Pyrolysis char is first with the pyrolysis gas counter current contacting from lower two-stage pyrolysis reactor, the quilt in the presence of pyrolysis gas
Send into after the pyrolysis reactor in addition to chopped-off head pyrolysis reactor and final stage pyrolysis reactor, it is by from lower two-stage pyrolysis reactor
Pyrolysis oil gas mixed heat transfer, and continue pyrolysis, pyrolysis produce pyrolysis oil gas enter upper level pyrolysis reactor, pyrolysis produce
Pyrolysis char enter next stage pyrolysis reactor;
Pyrolysis char after the pyrolysis of final stage pyrolysis reactor obtains coke breeze after cooling.
As a kind of finer selection of the above method, methods described further comprises:
The pyrolysis oil gas that the pyrolysis of chopped-off head pyrolysis reactor is produced obtains tar light oil through tar capturing device.
As a kind of finer selection of the above method, methods described further comprises:
The heavy component not trapped by tar capturing device enters boiler combustion and produces heat smoke and steam, the heat smoke
Pyrolysis for solid material and pyrolysis char.
As a kind of finer selection of the above method, methods described further comprises:
The pyrolysis oil gas that the pyrolysis of chopped-off head pyrolysis reactor is produced enters boiler combustion and produces heat smoke and steam, the hot cigarette
Gas is used for the pyrolysis of solid material and pyrolysis char.
As a kind of finer selection of the above method, the method for pyrolysis further comprises:Final stage pyrolysis reactor is discharged
The pyrolysis char that produces of pyrolysis cooled down through Semi-coke cooling device, and heat is reclaimed, while obtaining coke breeze product.
As a kind of finer selection of the above method, described pulverized solid fuel be coal, biomass, oil shale or
Oil-sand.
The method for pyrolysis of present invention production coke breeze and tar light oil, comprises the following steps:
1) pulverized solid fuel is sent into by feed bin, and in the presence of heat smoke, is admitted to multistage strong eddy flow pyrolytic reaction
Device, and continue in pyrolysis reactor by the heat smoke heating from boiler, generation pyrolytic reaction, generation pyrolysis oil gas and pyrolysis
Semicoke;
2) the pyrolysis oil gas produced by pyrolysis obtains tar light oil, can further be refining to obtain height through tar capturing device
Value-added product;
3) heavy component not trapped in pyrolysis oil gas by tar capturing device enters boiler combustion, while producing heat smoke
And steam;Wherein, heat smoke returns to multistage strong eddy flow pyrolysis reactor and provides heat for pyrolysis;
4) pyrolysis char produced by pyrolysis is cooled down through Semi-coke cooling device, and carries out heat recovery, while obtaining coke breeze
Product, is collected using semicoke collecting tank.
Present invention can apply to obtained by pyrolytic reaction from solid fuel clean coke breeze, steam, liquid fuel and
High added value chemical products.Involved solid fuel includes:The carbonaceous solids such as coal, oil shale, oil-sand and biomass are fired
Material;The particle diameter of the pulverized solid fuel is less than 10mm.Moreover, solid fuel involved in the present invention, can be same
Class solid fuel or variety classes solid fuel.
Pyrolytic process of the present invention mainly includes:Solid fuel is heated by heat smoke in multistage strong eddy flow pyrolysis reactor and sent out
Raw pyrolytic reaction, generation pyrolysis oil gas and pyrolysis char;After light components are trapped through tar in the pyrolysis oil gas of high heating value, weight
Matter component is admitted to burning in boiler and produces heat smoke and steam, and heat smoke returns to the heat for solid fuel in strong Cyclonic reactor
Solution provides institute's calorific requirement.
Pyrolytic process of the present invention also includes, the pyrolysis char produced in strong eddy flow pyrolysis reactor, is entering
Next stage reactor relaying supervention life pyrolytic reaction.Moreover, the pyrolytic reaction for solid fuel and pyrolysis char provides heat
Heat carrier, including heat smoke and pyrolysis produce pyrolysis oil gas.
The present invention realizes the staged conversion of low-order coal fine coal and efficiently utilized, and solves simultaneously thin in pulverized coal pyrolysis technique
Technical problems such as coal dust is difficult to separate with coal oil mixture, easy occluding device pipeline and being difficult to such as are engineered at the present situation, and ensure
There is higher energy utilization efficiency in pyrolytic process.The present invention uses strong eddy flow pyrolysis reactor, strong using THE HURRICANE FLOW FIELD eddy flow
The characteristics of degree is high, turbulent closure scheme is strong, strengthens furnace heat transfer mass transport process, residence time of the extension fine coal in stove, to improve
Calorific intensity in stove;Moreover, in strong eddy flow pyrolysis apparatus, with quickly being mixed between solid material and heat carrier, quick heating,
And gas-solid product quick separating, be conducive to the characteristics of tar light oil is produced.Therefore, device of the invention is using multistage strong eddy flow
Pyrolysis reactor, the heat smoke produced using boiler combustion provides heat as heat carrier as pyrolytic reaction, makes solid fuel strong
Quickly mix and be rapidly heated with heat smoke in eddy flow pyrolysis reactor, to occur pyrolytic reaction, generation pyrolysis oil gas and heat
Solve semicoke;Light components are trapped through tar in pyrolysis oil gas, obtain tar light oil, and further processed processing, and production is high attached
Value-added product;It is pyrolyzed the heavy component of collection at large in oil gas and enters burning in boiler, produces heat smoke and steam;High warm cigarette
Gas returns in strong eddy flow pyrolysis apparatus and is used as heat carrier heat supply;Pyrolysis char can obtain coke breeze by cooling down and reclaiming heat;Pass through
The implementation of the present invention, it is final to obtain clean coke breeze, tar light oil and steam.
The present invention has following advantage compared to prior art:
1st, compared with traditional fixed bed and fluidized bed pyrolysis reactor, strong eddy flow pyrolysis reactor presents many excellent
Gesture, first, in running, solid material, which enters, to be coupled after pipeline, even if being broken up with air-flow is raised, it is equably suspended
Among air-flow, gas-solid is quickly mixed and mixed fully, and solid material is run with flow rotation;Gas during due to suspended state, it is solid it
Between contact area greatly, convection heat transfer' heat-transfer by convection systematic comparison is high, therefore heat transfer rate is exceedingly fast, and the time for completing effectively to exchange heat only needs
0.02~0.04s;Moreover, pyrolysis gas-solid product is easily achieved separation, final pyrolysis oil gas is discharged, and solid semicoke is received
Collection;
2nd, in the present invention, also resided in using the advantage of multistage strong eddy flow pyrolysis reactor, in the strong eddy flow pyrolytic reaction of single-stage
Inside device, solid material and heat carrier are with gas-solid cocurrent mode contact heat-exchanging, and in each order reaction of multistage strong eddy flow pyrolysis apparatus
In pipeline between device, with gas-solid reflux type contact heat-exchanging, residence time of the solid fuel in adverse current gas can be extended, made solid
Fluid fuel has more fully thermal histories, with enhancing convection heat transfer' heat-transfer by convection, improves the effect of fuel heating rate, and be more beneficial for carrying
The yield of high tar light oil;
3rd, in the present invention, the heat smoke and pyrolysis oil gas produced by system itself, as gas heat carrier, is pyrolytic reaction
Process provides heat, without outside heat supply, improves the operating load and the thermal efficiency of system;
4th, in the present invention, pyrolysis reactor is using multistage strong eddy flow pyrolysis reactor, feed coal after pyrolysis apparatus is entered,
It is pyrolyzed first in the first stage reactor, the pyrolysis char of generation, which enters in the pyrolysis reactor of the second level, to be continued to be pyrolyzed, with this side
Formula is pyrolyzed repeatedly in multistage strong eddy flow pyrolysis reactor, so as to obtain the semicoke product of cleaning;
5th, using strong eddy flow pyrolysis reactor, its furnace volume calorific intensity is higher, and stove inner volume can be reduced during design, simplifies
System architecture;And rough dusting to fly ash granule in oil gas is achieved that in pyrolysis apparatus;Moreover, in pyrolysis oil gas
The high heavy component of dust-laden is sent directly into boiler combustion, therefore, and whole system can simplify follow-up net without dust pelletizing system outside stove
Change system, further increases the reliability and stability of system;
6th, solid fuel is pyrolyzed using multistage strong eddy flow pyrolysis reactor in the present invention, wherein, strong eddy flow pyrolysis
The design of reactor series, can be according to research purpose, the purity of target product and heat smoke in multistage strong eddy flow pyrolytic reaction
Device outlet, the temperature of entrance are flexibly determined.
In summary, the present invention is made using multistage strong eddy flow pyrolysis reactor, and the heat smoke produced using its own system
For gas heat carrier, pyrolysis institute calorific requirement is provided for powdered fuel;And utilize the excellent of strong eddy flow pyrolysis reactor itself
Gesture, can realize solid material and gas heat carrier in system it is quick mix, the quick heating of material and fast pyrogenation and
The quick separating of product, can simplied system structure;It is final to obtain clean coke breeze, tar light oil and steam.
Brief description of the drawings
Fig. 1 is a kind of device and the schematic diagram of method for pyrolysis for producing coke breeze and tar light oil of the invention;
Fig. 2 is a kind of device and the embodiment schematic diagram of method for pyrolysis for producing coke breeze and tar light oil of the invention;
Accompanying drawing is identified
1st, multistage strong eddy flow pyrolysis reactor;2nd, tar capturing device;3rd, boiler;4th, Semi-coke cooling device;5th, semicoke is received
Collect tank;6th, feed bin.
Embodiment
The device of the present invention is described further below in conjunction with the accompanying drawings.
As shown in figure 1, main device of the present invention has:The strong eddy flow pyrolysis of multistage for realizing solid fuel pyrolysis
Reactor 1, the tar capturing device 2 for obtaining tar light oil, for provide pyrolysis institute's calorific requirement and obtain product vapor
Boiler 3, for by product semicoke cool down and carry out the device 4 of heat recovery, the semicoke collecting tank for obtaining coke breeze product
5th, the feed bin 6 for store solids material.
The multistage pyrolysis reactor includes some pyrolysis reactors, except chopped-off head pyrolysis reactor and final stage pyrolysis reactor
The pyrolysis gas inlet pipeline connection of the material outlet of outer pyrolysis reactor and next stage pyrolysis reactor, its pyrolysis gas import and
The pyrolysis gas outlet connection of next stage pyrolysis reactor, the pyrolysis gas import of its pyrolysis gas outlet and upper level pyrolysis reactor connects
Connect;The material outlet of the final stage pyrolysis reactor and Semi-coke cooling device connection, the material of the Semi-coke cooling device
Outlet and the connection of semicoke collecting tank.
In said apparatus, the multistage pyrolysis reactor be used for pulverized solid fuel pyrolysis, produce pyrolysis oil gas and
Pyrolysis char;The Semi-coke cooling device is used to cool down the pyrolysis char of generation, and carries out heat recovery;The semicoke
Collecting tank is used to collect to be produced by final stage pyrolysis reactor, and the powder semicoke product cooled down through Semi-coke cooling device.
The series of the multistage pyrolysis reactor can select 3-6.
The gas feed connection of the pyrolysis gas outlet and tar capturing device of the chopped-off head pyrolysis reactor.The tar is caught
Collecting system is used to trap the light components by the pyrolysis oil gas of multistage strong eddy flow pyrolysis reactor generation, obtains tar light oil.
Refer to Fig. 1, gas vent and the boiler connection of the tar capturing device, the exhanst gas outlet of the boiler and institute
State the smoke inlet connection of final stage pyrolysis reactor.The boiler is used for the burning for being pyrolyzed heavy component in oil gas, produces simultaneously
Heat smoke and steam;Wherein, the pyrolysis that heat smoke is solid fuel in multistage pyrolysis reactor provides institute's calorific requirement.
Fig. 2 is referred to, tar capturing device can also be not provided with the device, now the heat of the chopped-off head pyrolysis reactor
Vent one's spleen and export and boiler connection, the smoke inlet connection of the exhanst gas outlet of the boiler and the final stage pyrolysis reactor.It is described
Boiler is used for the burning for being pyrolyzed heavy component in oil gas, while producing heat smoke and steam;Wherein, heat smoke is that solid fuel exists
Pyrolysis in multistage pyrolysis reactor provides institute's calorific requirement.
It the following is the method that tar light oil pyrolysis is carried out using said apparatus.
Embodiment 1:Pyrolysis system includes the strong eddy flow pyrolysis reactor of level Four, and (in figure, 4) n is
Huolinhe lignite (fine coal), in the effect of pyrolysis oil gas 2 and heat smoke from two grades strong eddy flow pyrolysis apparatus (1-2)
Under, it is brought into the strong eddy flow pyrolysis reactor (1-1) of one-level, and continue in the reactor with coming from two grades strong eddy flow pyrolysis apparatus
The pyrolysis oil gas 2 of (1-2) is mixed, exchanged heat, and occurs pyrolytic reaction, and the pyrolysis oil gas 1 of generation is discharged from first-stage reactor, pyrolysis half
Jiao 1 is admitted to two grades of pyrolysis apparatus (1-2) in the presence of the pyrolysis oil gas 3 from third-stage reactor (1-3);It is anti-in two grades of pyrolysis
Answer and continue to be pyrolyzed with the mixed heat transfer of pyrolysis oil gas 3 from third-stage reactor (1-3), continuation in device (1-2), the pyrolysis oil of generation
Gas 2 escapes and enter pyrolysis reactor (1-1), and the pyrolysis char of generation is in the pyrolysis oil gas 4 from level four reaction apparatus (1-4)
Three-level pyrolysis apparatus (1-3) is admitted under effect;In three-level pyrolysis reactor (1-3), continue with coming from level Four pyrolysis apparatus (1-4)
Pyrolysis oil gas 4 mix, exchange heat to be pyrolyzed, the pyrolysis oil gas 3 of generation is discharged into pyrolysis reactor (1-2), generation
Pyrolysis char is admitted to level Four pyrolysis apparatus (1-4) under the heat smoke effect produced from boiler combustion;In level Four pyrolysis apparatus (1-
4) in, continue to carry out pyrolytic reaction with the heat smoke mixed heat transfer from boiler, the pyrolysis oil gas 4 of generation is discharged into pyrolysis instead
Device (1-3) is answered, final product semicoke 4 is from the strong eddy flow pyrolysis reactor bottom discharge of level Four, through cooling and heat recovery, by half
Burnt collecting tank 5 is collected;And the final pyrolysis oil gas 1 discharged by first-stage reactor (1-1) first traps heat through tar capturing device 2
The light components in oil gas 1 are solved, tar light oil is obtained;The heavy component of collection at large enters boiler combustion in pyrolysis oil gas 2, raw
Into heat smoke and steam product, heat smoke enters anti-as heat carrier return system by the strong eddy flow pyrolysis reactor (1-4) of level Four
System is answered, mixed with the solid material in pyrolysis reactor, exchange heat to occur pyrolytic reaction;By to Huolinhe lignite fine coal
Pyrolysis, is finally obtained the coke breeze, tar light oil and steam product of cleaning.
Embodiment 2:Pyrolysis system includes the strong eddy flow pyrolysis reactor of level Four (n is 4 in figure)
The present embodiment, using experimental method and step same as Example 1, the solid fuel used is Shenmu County orchard
Coal, main difference is that by the pyrolysis oil gas 1 of strong eddy flow pyrolysis reactor (1-1) discharge of one-level, fully entering into boiler combustion
Burn (as shown in Figure 2), it is final to obtain clean coke breeze and steam to produce heat smoke as the heat of pyrolysis.
Embodiment 3:Pyrolysis system includes six grades strong eddy flow pyrolysis reactor (n is 6 in figure)
The present embodiment, using experimental method and step same as Example 1, the solid fuel used is Erdos cigarette
Coal, main difference is that the strong eddy flow pyrolysis reactor of multistage that the present embodiment is used is six grade.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although ginseng
The present invention is described in detail according to embodiment, it will be understood by those within the art that, to the technical side of the present invention
Case is modified or equivalent substitution, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right among.
Claims (10)
1. a kind of pyrolysis installation for producing coke breeze and tar light oil, it is characterised in that it is anti-that the pyrolysis installation includes multistage pyrolysis
Answer device, Semi-coke cooling device and semicoke collecting tank;
The multistage pyrolysis reactor includes some pyrolysis reactors, in addition to chopped-off head pyrolysis reactor and final stage pyrolysis reactor
The pyrolysis gas outlet connection of pyrolysis gas import and next stage pyrolysis reactor, material outlet and the next stage pyrolysis of pyrolysis reactor
The pyrolysis gas inlet pipeline connection of reactor, the pyrolysis gas import connection of its pyrolysis gas outlet and upper level pyrolysis reactor;Institute
State final stage pyrolysis reactor material outlet and the Semi-coke cooling device connection, the material outlet of the Semi-coke cooling device and
Semicoke collecting tank is connected.
2. pyrolysis installation according to claim 1, it is characterised in that:The pyrolysis gas outlet of the chopped-off head pyrolysis reactor and
The gas feed connection of tar capturing device.
3. pyrolysis installation according to claim 2, it is characterised in that:The gas vent and boiler of the tar capturing device
The smoke inlet connection of connection, the exhanst gas outlet of the boiler and the final stage pyrolysis reactor.
4. pyrolysis installation according to claim 1, it is characterised in that:The pyrolysis gas outlet of the chopped-off head pyrolysis reactor and
Boiler is connected, the smoke inlet connection of the exhanst gas outlet of the boiler and the final stage pyrolysis reactor.
5. it is used for the method for pyrolysis for producing coke breeze and tar light oil based on claim 1-4 any devices, including:
Pulverized solid fuel elder generation and the pyrolysis gas counter current contacting from next stage pyrolysis reactor, and the quilt in the presence of pyrolysis gas
The chopped-off head pyrolysis reactor of the multistage pyrolysis reactor of feeding, and continue in chopped-off head pyrolysis reactor to be added by the pyrolysis gas of next stage
Heat, occurs pyrolytic reaction, generation pyrolysis oil gas and pyrolysis char, and pyrolysis char enters next stage pyrolysis reactor;
Pyrolysis char first with the pyrolysis gas counter current contacting from lower two-stage pyrolysis reactor, be admitted in the presence of pyrolysis gas
After pyrolysis reactor in addition to chopped-off head pyrolysis reactor and final stage pyrolysis reactor, and by the heat from lower two-stage pyrolysis reactor
Air-fuel mixture heat exchange is solved, and continues pyrolysis, the pyrolysis oil gas that pyrolysis is produced enters upper level pyrolysis reactor, is pyrolyzed the heat produced
Solution semicoke is admitted to next stage pyrolysis reactor;
Pyrolysis char after the pyrolysis of final stage pyrolysis reactor obtains coke breeze after cooling.
6. method for pyrolysis according to claim 5, it is characterised in that methods described further comprises:
The pyrolysis oil gas that the pyrolysis of chopped-off head pyrolysis reactor is produced obtains tar light oil through tar capturing device.
7. method for pyrolysis according to claim 6, it is characterised in that methods described further comprises:
The heavy component not trapped by tar capturing device enters boiler combustion and produces heat smoke and steam, and the heat smoke is used for
The pyrolysis of solid material and pyrolysis char.
8. method for pyrolysis according to claim 5, it is characterised in that methods described further comprises:
The pyrolysis oil gas that the pyrolysis of chopped-off head pyrolysis reactor is produced enters boiler combustion and produces heat smoke and steam, and the heat smoke is used
In the pyrolysis of solid material and pyrolysis char.
9. method for pyrolysis according to claim 5, it is characterised in that the method for pyrolysis further comprises:Final stage is pyrolyzed
The pyrolysis char that the pyrolysis of reactor discharge is produced is cooled down through Semi-coke cooling device, and reclaims heat, while obtaining coke breeze product.
10. method for pyrolysis according to claim 5, it is characterised in that described pulverized solid fuel is coal, biology
Matter, oil shale or oil-sand.
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CN201710432714.3A CN107163968B (en) | 2017-06-09 | 2017-06-09 | Pyrolysis device and pyrolysis method for producing coke breeze and light tar |
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