CN105778975B - A kind of junked tire pyrolysis and catalytic cracking system - Google Patents
A kind of junked tire pyrolysis and catalytic cracking system Download PDFInfo
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- CN105778975B CN105778975B CN201610332324.4A CN201610332324A CN105778975B CN 105778975 B CN105778975 B CN 105778975B CN 201610332324 A CN201610332324 A CN 201610332324A CN 105778975 B CN105778975 B CN 105778975B
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 124
- 238000004523 catalytic cracking Methods 0.000 title claims abstract description 16
- 238000005336 cracking Methods 0.000 claims abstract description 145
- 239000007789 gas Substances 0.000 claims abstract description 125
- 238000009825 accumulation Methods 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 40
- 238000007233 catalytic pyrolysis Methods 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims description 110
- 239000011449 brick Substances 0.000 claims description 36
- 239000007921 spray Substances 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 24
- 239000000919 ceramic Substances 0.000 claims description 23
- 239000000446 fuel Substances 0.000 claims description 22
- 238000004891 communication Methods 0.000 claims description 20
- 239000000567 combustion gas Substances 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 17
- 238000002309 gasification Methods 0.000 claims description 16
- 239000010920 waste tyre Substances 0.000 claims description 13
- 239000002737 fuel gas Substances 0.000 claims description 10
- 239000002918 waste heat Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 14
- 229930195733 hydrocarbon Natural products 0.000 abstract description 12
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 150000003384 small molecules Chemical class 0.000 abstract description 12
- 239000001257 hydrogen Substances 0.000 abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 241000894007 species Species 0.000 description 10
- 239000003546 flue gas Substances 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000002699 waste material Substances 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 230000026676 system process Effects 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910000514 dolomite Inorganic materials 0.000 description 3
- 239000010459 dolomite Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 210000000952 spleen Anatomy 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 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
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/10—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/22—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds
- C01B3/24—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons
- C01B3/26—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons using catalysts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0266—Processes for making hydrogen or synthesis gas containing a decomposition step
- C01B2203/0277—Processes for making hydrogen or synthesis gas containing a decomposition step containing a catalytic decomposition step
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to junked tire pyrolytic technique field, and in particular to a kind of junked tire pyrolysis and catalytic cracking system based on heat accumulation type radiant tube heating, for producing cleaning combustible gas.The present invention is in view of the shortcomings of the prior art, design and develop a kind of junked tire pyrolysis and catalytic cracking reaction system, the reaction system can carry out pyrolysis and two kinds of operations of catalytic pyrolysis, oil gas caused by pyrolysis chamber, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromolecular are cracked into the gaseous hydrocarbons of small molecule, and by way of catalytic pyrolysis, it is a large amount of to produce hydrogen, GAS QUALITY is high, so as to avoid the problem of production pyrolysis oil is difficult by, the clean and effective for being truly realized junked tire utilizes.
Description
Technical field
The invention belongs to junked tire pyrolytic technique field, and in particular to a kind of based on the waste and old of heat accumulation type radiant tube heating
Tire pyrolysis and catalytic cracking system, for producing cleaning combustible gas.
Background technology
With the fast development of China's economy and the generally raising of living standards of the people, automobile has stepped into people
Daily life among, thereby produce substantial amounts of junked tire.China's tire yield is up to 2.8 hundred million within 2006, occupies the world
First, caused junked tire also up to 1.4 hundred million then, about 3,600,000 tons.The accumulation of a large amount of junked tires does not only take up soil
Ground, it is also easy to grow mosquito bacterium, spreads disease, endanger residents ' health, and pole fire hazardous, causes environment dirty
Dye.Junked tire is recycled, then can not only alleviate its pressure to environment, pollution is reduced, can more realize money
The effective recycling in source.The method of processing junked tire has the prototype transformation of the way, production reclaimed rubber and rubber powder, burning and heat at present
Solution etc., wherein pyrolytic technique be it is a kind of have very much potentiality handle junked tire method.Junked tire pyrolytic technique is will be waste and old
Tire is thermally decomposed in anoxic or inert gas, can produce pyrolysis gas, pyrolysis oil and charcoal residue etc..These products are through entering one
Step working process can change into the high-value product with various uses.Compared with traditional treatment method, pyrolysismethod not only can be with
The product of high added value is reclaimed, and nearly 70% energy can be reclaimed, there is higher economy and environmental benefit.At present, give up
The pyrolytic technique of old tire mainly has moving bed pyrolysis technique, waste-tire recycling system etc..However, obtained by pyrolytic technique
The shortcomings of pyrolisis of tires oil ingredient is extremely complex, and pH value is relatively low, oxygen content is high, heat endurance is poor, viscosity is big causes it to be difficult to
Directly utilize and store, it is difficult to industrial applications.Therefore, how to design a kind of efficiently production cleaning combustible gas turns into this area urgently
Need to solve the problems, such as.
The content of the invention
The present invention in view of the shortcomings of the prior art, designs and develops a kind of junked tire pyrolysis and catalytic cracking reaction system
System, the reaction system can carry out pyrolysis and two kinds of operations of catalytic pyrolysis, oil gas caused by pyrolysis chamber, can enter cracking room and carry out
Catalytic pyrolysis, the tar molecules of macromolecular are cracked into the gaseous hydrocarbons of small molecule, and by way of catalytic pyrolysis, big volume production
Raw hydrogen, GAS QUALITY is high, so as to avoid the problem of production pyrolysis oil is difficult by, is truly realized the cleaning of junked tire
Efficiently utilize.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
The invention provides a kind of pyrolysis of junked tire and catalytic cracking system, according to an embodiment of the invention, the system
Including：Loading hopper；Feeder, the feeder are connected with the loading hopper 1；Pyrolysis and cracking reactor, including：Charging aperture,
Pyrolysis chamber, cracking room and cracking gas outlet, the charging aperture are arranged on the roof of the pyrolysis chamber, and the cracking gas outlet is set
Put in the side wall of the cracking room；And：Heat accumulation type radiant tube, height side of the heat accumulation type radiant tube along the reactor
To multi-tier arrangement inside the pyrolysis chamber and the cracking room, every layer has the more heat accumulating types arranged in the horizontal direction
Radiant tube；Heat-insulated brick wall, the heat-insulated brick wall is arranged at the 2/3 of the reactor transverse width, vertically through in described
In reactor, the inner space of the reactor is separated into the pyrolysis chamber and the cracking room；Catalyst-adding device, its
It is connected with the cracking room, for catalyst for cracking to be put in the cracking room；Communication member, the communication member are set
In the bottom of the heat-insulated brick wall, for by oil gas caused by the pyrolysis chamber, by the communication member, being passed into described split
Solve room；Ceramic filter, described ceramic filter one end connect with cracking gas outlet, and the other end connects with the spray column
Connect；Spray column, the spray column are connected with the ceramic filter；Fuel cartridge, the fuel cartridge are connected with the spray column.
Inventor has found that system process according to embodiments of the present invention is simple, easy to operate, and the reaction system can carry out heat
Solution and two kinds of operations of catalytic pyrolysis, oil gas caused by pyrolysis chamber, cracking room can be entered and carry out catalytic pyrolysis, by Jiao of macromolecular
Oil molecule is cracked into the gaseous hydrocarbons of small molecule, and by way of catalytic pyrolysis, largely produces hydrogen, and GAS QUALITY is high, from
And the problem of production pyrolysis oil is difficult by is avoided, the clean and effective for being truly realized junked tire utilizes.Meanwhile the reaction
Device employs heat accumulation type radiant tube heating technique without gas, solid heat carrier heating, letter while improving the thermal efficiency of reactor
System process is changed.
According to an embodiment of the invention, the communication member is the hole for including multiple holes being arranged on the heat-insulated brick wall
Band；Or the communication member is on the heat-insulated brick wall longitudinal length, positioned at the opening of lower position.
According to an embodiment of the invention, the thickness of the heat-insulated brick wall is 5-15cm, and the height of the pore area is 3-15cm,
A diameter of 1-3cm in the hole, the height of the opening is 3-15cm.
According to an embodiment of the invention, the system further comprises combustion gas air-introduced machine, wherein, the combustion gas air-introduced machine one
End is connected with the outlet of the spray column, and the other end is connected with the fuel cartridge import.
According to an embodiment of the invention, the system also includes gasification furnace, the gasification furnace respectively with the heat accumulating type spoke
The fuel gas inlet for penetrating pipe connects with semicoke conveying device；Waste heat boiler, the cigarette of the waste heat boiler and the heat accumulation type radiant tube
Gas outlet is connected.
According to an embodiment of the invention, the catalyst-adding device includes：Catalyst hooper；Catalyst is responsible for, described
Catalyst supervisor is connected with the catalyst hooper；Catalyst branch pipe, the catalyst branch pipe are connected with catalyst supervisor
Logical, the catalyst branch pipe passes through the wall of the reactor cracking room and extended to inside the cracking room；Multiple catalyst sprays
Part is penetrated, the catalyst ejector part is arranged on the catalyst branch pipe, and inside the cracking room；Preferably, it is described
Catalyst branch pipe is arranged parallel to each other for length direction that is multiple and being responsible for along the catalyst, and the catalyst branch pipe is arranged on
The interlayer of the heat accumulation type radiant tube；Preferably, the catalyst ejector part includes catalyst ejection passage and is arranged on described
Nozzle on catalyst ejection passage, regulating valve is provided with the nozzle.
According to an embodiment of the invention, the loading hopper is connected by the feeder with the charging aperture.
According to an embodiment of the invention, the system also includes semicoke outlet, and the semicoke outlet is arranged on the pyrolysis
The bottom of room, the semicoke outlet are connected with the semicoke conveying device.
In another aspect of the present invention, junked tire heat is carried out using foregoing system the invention provides a kind of
The method of solution and catalytic pyrolysis.According to an embodiment of the invention, this method comprises the following steps：
A. waste tyre particle is added in the reactor by charging aperture, it is complete in the pyrolysis chamber of the reactor
Into pyrolytic process；
B. oil gas caused by pyrolysis, by the communication member set on the heat-insulated brick wall of the reactor, enter described anti-
Answer the cracking room of device；
C. oil gas caused by the pyrolysis is entered in the cracking room, and catalyst is sprayed on by catalyst-adding device
In the cracking room, the pyrolysis oil gas completes catalytic pyrolysis process in the cracking room, produces cracking gas；
D. the cracking gas is entered in spray column by cracking gas outlet, and purified treatment is carried out to the cracking gas；
E. purified net cracking gas enters in fuel cartridge through combustion gas air-introduced machine, is stored.
According to an embodiment of the invention, in the step a, described in the waste tyre particle from the reactor top
Charging aperture 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 anti-
The semicoke of device bottom is answered to export discharge；In the step a, the waste tyre particle is described in the reactor pyrolysis chamber
Heat accumulation type radiant tube is heated to 500-600 DEG C, and in the step b, the pyrolysis oil gas is by the institute in the reactor cracking room
State heat accumulation type radiant tube and be heated to 600-900 DEG C；In the step c, the catalyst is equably sprayed by catalyst ejector part
Spill in the cracking room；Preferably, the granularity of the waste tyre particle is below 20mm.
The beneficial effects of the present invention are：
1）Take heat accumulation type radiant tube moving bed process heating below 20mm junked tire, uniformity of temperature profile, heating
Effect is good, and reaction system is simple in construction, easy to operate；
2）Reactor is divided into pyrolysis chamber and cracking room, oil gas caused by pyrolysis chamber, can carry out Deep catalytic in cracking room and split
Solution, the tar molecules of macromolecular are cracked into the gaseous hydrocarbons of small molecule, and by way of catalytic pyrolysis, produce a large amount of hydrogen,
Combustion gas quality is high；
3）The reaction system can produce substantial amounts of cracking gas product, avoid the problem of pyrolysis oil is difficult by, really real
The clean and effective for having showed junked tire utilizes；
4）Two kinds of operations can be carried out in one body of heater, are combined into one, save construction cost and floor space.
Brief description of the drawings
Fig. 1 is the structure chart of junked tire of the present invention pyrolysis and catalytic cracking system.
Fig. 2 is the structure of reactor figure of junked tire of the present invention pyrolysis and catalytic cracking system.
Fig. 3 is the front view of the heat-insulated brick wall in reactor of the present invention.
Wherein, 1. loading hopper；2. feeder；3. thermal storage type moving bed reactor；310. cracking gases export；311. flue gases go out
Mouthful；320. charging aperture；321. air intake；322. fuel gas inlet；330. semicokes export；340. cracking room；350. pyrolysis chamber；
360. communication member；370. heat-insulated brick walls；380. heat accumulation type radiant tube；4. ceramic filter；5. spray column；6. combustion gas air inducing
Machine；7. fuel cartridge；8. gasification furnace；9. conveying worm；10. waste heat boiler；11. catalyst hooper；12. catalyst bleed pipe
Road；13. catalyst is responsible for；14. catalyst branch pipe.
Embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to specific embodiment to this
Invention is described in further detail.The embodiments described below is exemplary, is only used for explaining the present invention, without being understood that
For limitation of the present invention.Unreceipted particular technique or condition in embodiment, according to the skill described by document in the art
Art or condition are carried out according to product description.
According to an aspect of the present invention, the invention provides a kind of pyrolysis of junked tire and catalytic cracking system, Fig. 1 to be
Junked tire is pyrolyzed and the structure of catalytic cracking system, as shown in figure 1, the system includes loading hopper 1, feeder 2, the charging
Bucket 1 and the feeder 2 connect；Pyrolysis and cracking reactor 3, the pyrolysis and cracking reactor 3 include：Charging aperture 320, heat
Solve room 350, cracking room 340, cracking gas outlet 310, heat accumulation type radiant tube 380, heat-insulated brick wall 370, catalyst-adding device, company
Logical component 360, wherein, the charging aperture is arranged on the roof of the pyrolysis chamber, and the cracking gas outlet is arranged on described split
In the side wall for solving room, the heat-insulated brick wall separates the inner space of the reactor vertically through in the reactor
Into the pyrolysis chamber and the cracking room, the catalyst-adding device is connected with the cracking room, for by catalyst for cracking
Put in the cracking room, the communication member is arranged on the heat-insulated brick wall, pyrolysis chamber is connected with cracking room, preferably
, the communication member is arranged on the bottom of the heat-insulated brick wall, for by oil gas caused by the pyrolysis chamber, passing through the company
Logical component, is passed into the cracking room；Ceramic filter 4, the ceramic filter connect with cracking gas outlet；Spray column
5, the spray column is connected with the ceramic filter；Fuel cartridge 7, the fuel cartridge are connected with the spray column.
Inventor has found that system process according to embodiments of the present invention is simple, easy to operate, and the reaction system can carry out heat
Solution and two kinds of operations of catalytic pyrolysis, oil gas caused by pyrolysis chamber, cracking room can be entered and carry out catalytic pyrolysis, by Jiao of macromolecular
Oil molecule is cracked into the gaseous hydrocarbons of small molecule, and by way of catalytic pyrolysis, largely produces hydrogen, and GAS QUALITY is high, from
And the problem of production pyrolysis oil is difficult by is avoided, the clean and effective for being truly realized junked tire utilizes.Meanwhile the reaction
Device employs heat accumulation type radiant tube heating technique without gas, solid heat carrier heating, letter while improving the thermal efficiency of reactor
System process is changed.
According to a particular embodiment of the invention, suitable for the junked tire of junked tire pyrolysis and catalytic cracking system
Specific particle diameter is not particularly limited, and according to an embodiment of the invention, junked tire can be that bulk can also be little particle, at this
In some preferred embodiments of invention, the granularity for the waste tyre particle that the reactor uses is below 20mm, thus, it is possible to fill
Divide and utilize little particle junked tire, resource utilization is high, and can solve the problem that the problem of bulk deposition pollutes environment.
According to an embodiment of the invention, the system is used to be pyrolyzed and catalytic pyrolysis junked tire, cracking junked tire use
Species, particle diameter and the dosage of catalyst be not particularly limited, those skilled in the art can flexibly select as needed.At this
In some preferred embodiments of invention, catalyst can use one kind or several in dolomite, Ni bases catalyst or Fe base catalyst
Kind is used in mixed way, and the particle diameter of catalyst can be no more than 0.5 millimeter, and the dosage of catalyst can be the 1% of material gross mass
~15%.Thus, catalytic efficiency is higher, and pyrolysis oil gas completes catalytic pyrolysis process in cracking room so that the tar of macromolecular
Molecular cleavage is the gaseous hydrocarbons of small molecule, produces substantial amounts of hydrogen-rich gas, avoids the problem of production pyrolysis oil is difficult by,
The clean and effective for being truly realized junked tire utilizes.
According to a particular embodiment of the invention, it is not particularly limited suitable for the type of furnace of the reactor 3 of the system, can
To be that thermal storage type moving bed be pyrolyzed with cracking reactor 3 can also be other types, such as non-heat accumulating type or non-moving type, as long as
Pyrolysis chamber and cracking room can be divided into by the integration of heat-insulated brick wall., should in some currently preferred embodiments of the present invention
Reactor 3 uses thermal storage type moving bed reactor 3.
According to a particular embodiment of the invention, Fig. 2 is junked tire pyrolysis and the pyrolysis and cracking of catalytic cracking system
The structure chart of reactor 3, as shown in Fig. 2 the heat-insulated brick wall is arranged in reactor, it is preferred that positioned at reactor transverse width
2/3 at, the thickness of heat-insulated brick wall is 5-15cm.Heat-insulated brick wall is empty by the inside of reactor vertically through in reactor
Between be separated into pyrolysis chamber and cracking room, the structure to be provided with pyrolysis chamber and cracking room in a body of heater, pyrolysis chamber produce
Oil gas, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromolecular be cracked into the gaseous hydrocarbons of small molecule, production
Raw substantial amounts of cracking gas, so as to avoid the problem of producing pyrolysis oil dust-laden.Also, two kinds of operations can be carried out in a body of heater,
It is combined into one, saves construction cost and floor space.
According to a particular embodiment of the invention, the specific species of the communication member 360 is not particularly limited, as long as can be with
Pyrolysis chamber is connected with cracking room, so as to which oil gas caused by pyrolysis chamber is passed into cracking room.In some realities of the present invention
Apply in example, when Fig. 3 is in terms of the from left to right of reactor, the front view of heat-insulated brick wall, as shown in figure 3, communication member can be to set
Put the pore area for including multiple holes on heat-insulated brick wall, under preferable case, the height of the pore area is 3-15cm, the hole it is straight
Footpath is 1-3cm.Communication member can also be heat-insulated brick wall longitudinal length on, under the opening of lower position, preferable case, institute
The height for stating opening is 3-15cm.
According to a particular embodiment of the invention, catalyst-adding device includes：Catalyst hooper 11；Catalyst supervisor 13,
The catalyst supervisor is connected with the catalyst hooper；Catalyst branch pipe 14, the catalyst branch pipe and the catalyst master
Pipe is connected, and the catalyst branch pipe passes through the wall of the reactor cracking room and extended to inside the cracking room, catalyst
Branch pipe is arranged on the interlayer of the heat accumulation type radiant tube in cracking room；At least one catalyst ejector part, the catalyst ejector part
It is arranged on the catalyst branch pipe, and inside the cracking room；Preferably, the catalyst branch pipe is multiple and along institute
State catalyst supervisor length direction it is arranged parallel to each other, catalyst branch pipe is arranged on the interlayer of the heat accumulation type radiant tube；It is excellent
Choosing, the catalyst ejector part includes catalyst ejection passage 12 and the nozzle being arranged on the catalyst ejection passage,
Regulating valve is provided with the nozzle, it is preferred that is furnished with catalyst ejection passage around every radiant tube in cracking room.
According to an embodiment of the invention, catalyst branch pipe can extend to the center of cracking room.Thus, be advantageous to urge
Agent and pyrolysis oil gas are well mixed.And catalyst branch pipe can be that length direction that is multiple and being responsible for along catalyst is parallel to each other
Arrangement.Thus, be advantageous to catalyst to be uniformly distributed in cracking room, and then improve catalytic efficiency.
According to an embodiment of the invention, catalyst-adding device can include 10-25 layer catalyst ejector parts.Thus, have
It is evenly distributed beneficial to catalyst in cracking room, improves catalytic efficiency.According to an embodiment of the invention, catalyst ejector part can wrap
Catalyst ejection passage and the nozzle being arranged on catalyst ejection passage are included, thus, catalyst can be in the presence of carrier gas
Spray in the pyrolysis oil gas of cracking room by catalyst ejection passage, and by nozzle, further, can also be set on nozzle
Regulating valve is equipped with, is thus easy to the addition of accurate control catalyst.
According to an embodiment of the invention, the quantity of catalyst ejector part is not particularly limited, and those skilled in the art can be with
Setting as needed.In an embodiment of the present invention, multiple catalyst ejector parts are provided with each catalyst branch pipe, thereon may be used
To be provided with 4-15 nozzle.Thus, be advantageous to catalyst and pyrolysis oil gas is well mixed, improve catalytic efficiency.
According to an embodiment of the invention, the connected mode that catalyst branch pipe is responsible for catalyst is not particularly limited, including
But it is connected to catalyst supervisor with being not limited to removably or weld.Ability can be entered with technical staff according to actual operating conditions
Row selection.
According to an embodiment of the invention, carrier gas delivering part can be connected to the end of catalyst supervisor, specific connected mode
Be not particularly limited, can with it is detachably connected or be soldered to catalyst supervisor.Thus, it is easy to carrier gas delivering part work, favorably
In raising operating efficiency.
According to a particular embodiment of the invention, as shown in figure 1, the charging aperture is arranged on the roof on pyrolysis chamber top,
Loading hopper is connected by feeder with the charging aperture.According to an embodiment of the invention, as shown in figure 1, the system can enter one
Step includes：Loading hopper and feeder, the outlet of the loading hopper are connected with the entrance of the feeder, the outlet of the feeder
It is connected with the charging aperture.According to an embodiment of the invention, the specific species of feeder is not particularly limited, as long as will can add
Junked tire in hopper is effectively delivered into reactor.In some embodiments of the invention, feeder can be
Star feeder or feed screw.Thereby, it is possible to realize the Automatic Conveying to hot feed, conveying capacity is controllable, and equipment knot
Structure is simple, easy to operate.
According to a particular embodiment of the invention, as shown in figure 1, the reactor further comprises semicoke outlet 330, institute
The bottom that semicoke outlet is arranged on the pyrolysis chamber is stated, the semicoke outlet is connected with the semicoke conveying device 9.Thus, may be used
So that the semicoke obtained in reactor to be conveyed using semicoke conveying device.The specific species of semicoke conveying device is not by special
Limitation, including but not limited to star or conveying worm 9.Thereby, it is possible to realize the Automatic Conveying to semicoke, and conveying capacity can
Control, device structure is simple, easy to operate.
According to an embodiment of the invention, reference picture 2, the inside reactor are disposed with height of the multilayer along the reactor
Direction is arranged in the heat accumulation type radiant tube inside the pyrolysis chamber and the cracking room, and every layer of heat accumulation type radiant tube can include more
The heat accumulation type radiant tube of individual parallel to each other and horizontally spaced distribution.According to an embodiment of the invention, the pyrolysis chamber and
An at least heat accumulation type radiant tube is distributed in cracking room respectively, it is preferred that an at least heat accumulation type radiant tube is equal
Even distribution.Heat accumulation type radiant tube can be pyrolyzed it effective for being heated to the oil gas in pyrolysis material and cracking room
And cracking reaction, specifically, combustible gas and air can be passed through into heat accumulation type radiant tube, combustible gas burning is realized to pyrolysis
The heating function of oil gas in material and cracking room.The reactor uses heat accumulation type radiant tube heating technique, without gas, solid heat carrier
Heating, pyrolysis gas will not be diluted, and calorific value is high, and reactor temperature is evenly distributed, and surface temperature difference is small, and exhaust gas temperature is low, heat
Efficiency high, system process is simplified while the thermal efficiency for improving reactor, reaction system is simple in construction, easy to operate.
According to an embodiment of the invention, in the pyrolysis chamber of the reactor, pyrolysis material moves from top to bottom, the reaction
The heat accumulation type radiant tube set in device, which can break up pyrolysis material, is uniformly distributed it.According to an embodiment of the invention, heat accumulating type
The shape of radiant tube is not particularly limited, and in some embodiments of the invention, can is cylinder, is thus advantageous to material
Break up, realize that mixed pyrolysis material is dispersed in pyrolysis chamber.The level interval of radiant tube is 200-500mm, vertical interval
For 200-700mm, the radiant tube number of plies is 10-25 layers, and reactor width is 2-6m, height for reactor 3-20m.In addition, accumulation of heat
Formula radiant tube can be the unidirectional heat accumulation type radiant tube being evenly arranged, and tube wall temperature is controlled 500~700 using gas control valve
DEG C scope, pyrolysis material stops 1-50 minutes from top to bottom in the reactor, and is heated to 500~600 DEG C, completes pyrolytic process.
Meanwhile heat accumulation type radiant tube can take the combustion system periodically to commutate so that the surface temperature difference of single heat accumulation type radiant tube is only
There are 30 DEG C or so, there is no area of localized hyperthermia, thus, be advantageous to improve the thermal efficiency.
According to a particular embodiment of the invention, the reactor is provided with fuel gas inlet 322, air intake 321 and flue gas
Outlet 311, wherein, fuel gas inlet and exhanst gas outlet are connected with heat accumulation type radiant tube respectively, are respectively used to be passed through combustible gas and row
Go out flue gas, air intake is connected with source of the gas and heat accumulation type radiant tube respectively, for air caused by source of the gas to be passed through into heat accumulating type spoke
Penetrate in pipe.It is delivered to thus, it is possible to which by fuel gas inlet semicoke will be obtained in pyrolysis chamber in gasification furnace, semicoke is carried out at gasification
Reason, to obtain combustible gas and lime-ash, obtained combustible gas can be entered in heat accumulation type radiant tube by fuel gas inlet, meanwhile,
Air can be passed through into heat accumulation type radiant tube using blower fan by air intake, make combustible gas burning to the heat in pyrolysis chamber
Solution material is heated.In addition, the flue gas in heat accumulation type radiant tube is transported in waste and old boiler by exhanst gas outlet, cigarette is reclaimed
Gas, flue gas is set not to be discharged into air.Thus, it is possible to sufficiently utilize semicoke, do not cause to waste, good economy performance,
Also, flue gas is reclaimed, does not cause environmental pollution, it is green.
According to an embodiment of the invention, the system may further include：Ceramic filter, the ceramic filter are set
Between the cracking gas outlet of the cracking room and the spray column.The entrance of the ceramic filter splits with the cracking room
Vent one's spleen and export connection, the outlet of the ceramic filter connects with the entrance of the spray column.The specific species of ceramic filter
It is not particularly limited, as long as the cracking gas that cracking gas can be exported to discharge effectively carries out dust removal process.
According to an embodiment of the invention, as shown in figure 1, the system may further include：Spray column, the spray column are set
Put between the ceramic filter and the combustion gas air-introduced machine.The outlet of the entrance of the spray column and the ceramic filter
Connection, the outlet of the spray column is connected with the entrance of the combustion gas air-introduced machine.The specific species of spray column is not particularly limited,
As long as being capable of washing, purifying cracking gas.
According to an embodiment of the invention, as shown in figure 1, the system may further include：Combustion gas air-introduced machine 6, wherein, institute
Combustion gas air-introduced machine is stated to be arranged between the spray column and the fuel cartridge.The combustion gas air-introduced machine entrance and the spray column
Outlet connection, the combustion gas air-introduced machine outlet are connected with the fuel cartridge import.
According to an embodiment of the invention, as shown in figure 1, the system may further include：Fuel cartridge, the fuel cartridge are set
Put in one end of the combustion gas air-introduced machine.The entrance of the fuel cartridge is connected with the outlet of the combustion gas air-introduced machine.Fuel cartridge
Specific species is not particularly limited, as long as cracking gas can be stored.
According to an embodiment of the invention, as shown in figure 1, the system may further include：Gasification furnace 8, the gasification furnace
It is arranged between the fuel gas inlet of the heat accumulation type radiant tube and semicoke conveying device.The gasification furnace entrance and the semicoke are defeated
The outlet of device is sent to connect, the gasification outlet of still is connected with the fuel gas inlet of the heat accumulation type radiant tube.Gasification furnace it is specific
Species is not particularly limited, as long as semicoke can be carried out into gasification process, to obtain combustible gas and lime-ash, also, is gasified
The lime-ash discharge obtained afterwards, obtained combustible gas can enter heat accumulation type radiant tube by the fuel gas inlet of heat accumulation type radiant tube
In, the pyrolysis material in pyrolysis chamber is heated by combustible gas burning.Thereby, it is possible to realize to carry out semicoke sufficiently profit
With not causing to waste, good economy performance.
According to an embodiment of the invention, as shown in figure 1, the system may further include：Waste heat boiler 10, the used heat
Boiler is arranged on exhanst gas outlet one end of the heat accumulation type radiant tube.The entrance of the waste heat boiler and the heat accumulation type radiant tube
Exhanst gas outlet be connected.The specific species of waste and old boiler is not particularly limited, as long as being capable of recovered flue gas.Thus, it is right
Flue gas is reclaimed, and does not cause environmental pollution, green.
In another aspect of the present invention, junked tire heat is carried out using foregoing system the invention provides a kind of
The method of solution and catalytic pyrolysis.According to an embodiment of the invention, this method comprises the following steps：
A. waste tyre particle is added in the reactor by charging aperture 320, in the pyrolysis chamber of the reactor
Middle completion pyrolytic process.Wherein, the junked tire is entered in feeder 2 from loading hopper 1, the charging aperture on reacted device top
320 are added in thermal storage type moving bed reactor 3, and are broken up by the heat accumulation type radiant tube in the reactor, pyrolysis char from
The discharge of semicoke outlet 330 of reactor bottom, and through semicoke conveying device 9（Preferably conveying worm）Discharge.
According to an embodiment of the invention, the specific particle diameter of junked tire is not particularly limited, and junked tire can be bulk
Junked tire can also be little particle junked tire, and in some currently preferred embodiments of the present invention, the reactor uses waste and old
The granularity of tyre crumbs is below 20mm, thus, it is possible to make full use of little particle junked tire, resource utilization is high, and can
Solve the problems, such as that bulk deposition pollutes environment.
According to an embodiment of the invention, in pyrolysis chamber, junked tire moves from top to bottom, and 15 set in pyrolysis chamber store
Hot type radiant tube, which can break up junked tire, is uniformly distributed it, and waste tyre particle stops 1- from top to bottom in the reactor
50 minutes, waste tyre particle was heated to 500~600 DEG C by the heat accumulation type radiant tube in reactor pyrolysis chamber.Specifically, can be with
The temperature of heat accumulation type radiant tube tube wall is controlled in 500~700 DEG C of scopes by gas valve, and is heated to 500~600 DEG C, is completed
Pyrolytic process.
B. oil gas caused by pyrolysis, by the communication member set on the heat-insulated brick wall of the reactor, enter described anti-
Answer the cracking room of device.
According to an embodiment of the invention, heat-insulated brick wall is arranged in reactor, it is preferred that positioned at reactor transverse width
At 2/3, the thickness of heat-insulated brick wall is 5-15cm, and heat-insulated brick wall is vertically through in reactor, by the inner space of reactor
Pyrolysis chamber and cracking room are separated into, the structure to be provided with pyrolysis chamber and cracking room in a body of heater, caused by pyrolysis chamber
Oil gas, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromolecular are cracked into the gaseous hydrocarbons of small molecule.By
This, can carry out two kinds of operations, be combined into one in a body of heater, save construction cost and floor space.According to the implementation of the present invention
Example, communication member can be the pore area for including at least one hole being arranged on heat-insulated brick wall, or heat-insulated brick wall longitudinal direction
In length, positioned at the opening of lower position.Specifically, oil gas caused by pyrolysis, passes through the pore area of the heat-insulated brick wall bottom of reactor
Or opening, enter cracking room.
C. oil gas caused by the pyrolysis is entered in the cracking room, and catalyst is sprayed on by catalyst-adding device
In the cracking room, the pyrolysis oil gas completes catalytic pyrolysis process in the cracking room, produces cracking gas.
According to an embodiment of the invention, the system is used to be pyrolyzed and catalytic pyrolysis junked tire, cracking junked tire use
Species, particle diameter and the dosage of catalyst be not particularly limited, those skilled in the art can flexibly select as needed.At this
In some preferred embodiments of invention, catalyst can use one kind or several in dolomite, Ni bases catalyst or Fe base catalyst
Kind is used in mixed way, and the particle diameter of catalyst can be that the dosage of catalyst can be junked tire gross mass no more than 0.5 millimeter
1%~15%.Thus, catalytic efficiency is higher, and pyrolysis oil gas completes catalytic pyrolysis process in cracking room so that macromolecular
Tar molecules are cracked into the gaseous hydrocarbons of small molecule, produce substantial amounts of hydrogen-rich gas, avoid what production pyrolysis oil was difficult by
Problem, the clean and effective for being truly realized junked tire utilize.
According to an embodiment of the invention, an at least heat accumulation type radiant tube is distributed in the cracking room, it is preferred that
An at least heat accumulation type radiant tube is uniformly distributed, also, is furnished with least one around the every heat accumulation type radiant tube
Catalyst ejection passage 12, it is preferred that the heat accumulation type radiant tube and the alternating parallel of catalyst ejection passage 12 distribution.
Heat accumulation type radiant tube can heat effective for the oil gas indoor to cracking, it is carried out catalytic cracking reaction.In this hair
In some bright preferred embodiments, pyrolysis oil gas is heated to 600-900 DEG C by the heat accumulation type radiant tube in reactor cracking room, tool
Body, it is furnished with catalyst ejection passage 12 around every radiant tube, particle diameter≤0.5mm catalyst passes through catalyst bleed pipe
Road 12 is equably sprayed in cracking room, and the temperature that heat accumulation type radiant tube tube wall can be controlled by gas valve is 600~900
DEG C, pyrolysis oil gas is heated to rapidly 600-900 DEG C in the reactor, completes thermal cracking processes, thus, the tar point of macromolecular
Son is cracked into the gaseous hydrocarbons of small molecule, produces substantial amounts of cracking gas（Hydrogen-rich gas）, avoid production pyrolysis oil and be difficult by
The problem of, the clean and effective for being truly realized junked tire utilizes.
D. the cracking gas enters spray by the discharge of cracking gas outlet 310 after ceramic filter 4 carries out dust removal process
Drench in tower 5, purified treatment is carried out to the cracking gas.
According to an embodiment of the invention, what is be connected with cracking gas outlet 310 is ceramic filter 4, the ceramic filter 4
Also it is connected with spray column 5, wherein, described ceramic filter 4 is for cracking gas to be exported to the cracking gas of 310 discharges effectively
Dust removal process is carried out, described spray column 5 is for the cracking gas after dedusting to be carried out into washing, purifying processing.Specifically, cracking
Gas exports 310 by cracking gas, the dust separation into ceramic filter 4, subsequently into washing, purifying in spray column 5, obtains
Cracking gas after purification, so as to avoid the problem of producing pyrolysis oil dust-laden, it is truly realized the clean and effective profit of junked tire
With.
E. purified net cracking gas enters in fuel cartridge 7 through combustion gas air-introduced machine 6, is stored.
According to an embodiment of the invention, what is be connected with spray column 5 is fuel cartridge 7, and the fuel cartridge 7 is to be used to store cracking
Gas, the cracking gas after purification is sent into fuel cartridge 7 through combustion gas air-introduced machine 6, is stored.
Embodiment one：
（1）The junked tire for being crushed to granularity≤20mm enters thermal storage type moving bed reaction in loading hopper 1 through feeder 2
Device 3, moving-burden bed reactor 3 are divided into pyrolysis chamber and cracking room by heat-insulated brick wall.
（2）Unidirectional heat accumulation type radiant tube is evenly arranged in pyrolysis chamber, tube wall temperature is controlled 500 using gas control valve
~700 DEG C of scopes, junked tire stops 1-50 minutes from top to bottom in the reactor, and is heated to 500~600 DEG C, completes heat
Solution preocess.
（3）Oil gas caused by pyrolysis, by the opening of the heat-insulated brick wall of reactor lower part, cracking room is entered, in cracking room
Unidirectional heat accumulation type radiant tube has been evenly arranged it, tube wall temperature is controlled in 600~900 DEG C of scopes using gas control valve, at every
It is furnished with catalyst ejection passage around radiant tube, particle diameter≤0.5mm catalyst is equably sprayed by catalyst ejection passage 12
Spill in cracking room, pyrolysis oil gas is heated to 600-900 DEG C in cracking room, completes catalytic pyrolysis process, Jiao of macromolecular
Oil molecule is cracked into the gaseous hydrocarbons of small molecule, produces substantial amounts of hydrogen-rich gas, avoids asking of being difficult by of production pyrolysis oil
Topic, the clean and effective for being truly realized junked tire utilize.Catalyst can use dolomite, Ni bases catalyst or Fe base catalyst
In one or more be used in mixed way.
（4）Cracking gas is by reactor outlet, the dedusting into ceramic filter 4, and the cracking gas after dedusting enters
Further purification is washed in spray column 5, the net cracking gas after washing is sent into fuel cartridge 7 through combustion gas blower fan 6, artificial available for producing
The products such as natural gas.
（5）Semicoke caused by junked tire pyrolysis, gasification furnace 8 is sent into by conveying worm 9, gasification gas can be supplied to radiation
Pipe burns, the lime-ash discharge after gasification.
（6）Flue gas caused by heat accumulation type radiant tube burning, heat is reclaimed into waste heat boiler, produces high-quality steam.
Inventor has found that this method according to embodiments of the present invention, system architecture according to embodiments of the present invention is simple, behaviour
Facilitate, uniformity of temperature profile, heating effect is good.Reactor is divided into pyrolysis chamber and cracking room, oil gas caused by pyrolysis chamber, can be with
Catalytic pyrolysis is carried out into cracking room, the tar molecules of macromolecular are cracked into the gaseous hydrocarbons of small molecule, generation is largely split
Vent one's spleen, so as to avoid the problem of producing pyrolysis oil dust-laden, the clean and effective for being truly realized junked tire utilizes.Also, should
Pyrolysis chamber and cracking room will be provided with a body of heater in system so that two kinds of operations can be carried out in a body of heater, are combined into one,
Save construction cost and floor space.Meanwhile the reactor employs heat accumulation type radiant tube heating technique without gas, solid heat carrier
Heating, system process is simplified while the thermal efficiency for improving reactor.
Junked tire is handled using junked tire pyrolysis and catalytic cracking system, the basic data of raw material is shown in Table 1.
Table 1：Junked tire basic data
Junked tire is handled using the reaction system, obtained gas products yield is 58%, and pyrolytic tar almost all is split
Solve as gaseous products, factor of created gase height.Hydrogen content is 45% in cracking gas, and quality is high.
In the description of the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance or imply the quantity of the technical characteristic indicated by indicating.Thus, define " the
One ", one or more this feature can be expressed or be implicitly included to the feature of " second ".
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are 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 and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or 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.Moreover, specific features, structure, material or the feature of description can be any
Combined in an appropriate manner in individual or multiple embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification, meanwhile, for those of ordinary skill in the art, the think of according to the application
Think, in specific embodiments and applications there will be changes.
Claims (12)
1. a kind of junked tire pyrolysis and catalytic cracking system, it is characterised in that including：
Loading hopper；
Feeder, the feeder are connected with the loading hopper；
Pyrolysis and cracking reactor, including：Charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, the charging aperture are arranged on institute
State on the roof of pyrolysis chamber, the cracking gas outlet is arranged in the side wall of the cracking room；And：
Heat accumulation type radiant tube, short transverse multi-tier arrangement of the heat accumulation type radiant tube along the reactor in the pyrolysis chamber and
Inside the cracking room, every layer has the more heat accumulation type radiant tubes arranged in the horizontal direction；
Heat-insulated brick wall, the heat-insulated brick wall is arranged at the 2/3 of the reactor transverse width, vertically through in the reaction
In device, the inner space of the reactor is separated into the pyrolysis chamber and the cracking room；
Catalyst-adding device, it is connected with the cracking room, for catalyst for cracking to be put in the cracking room；
Communication member, the communication member are arranged on the bottom of the heat-insulated brick wall, for by oil gas caused by the pyrolysis chamber,
By the communication member, the cracking room is passed into；The communication member be arranged on the heat-insulated brick wall include it is more
The pore area in individual hole；Or the communication member is on the heat-insulated brick wall longitudinal length, positioned at the opening of lower position；
Ceramic filter, described ceramic filter one end are connected with cracking gas outlet, and the other end is connected with spray column；
Spray column, the spray column are connected with the ceramic filter；
Fuel cartridge, the fuel cartridge are connected with the spray column.
2. system according to claim 1, it is characterised in that the thickness of the heat-insulated brick wall is 5-15cm, the pore area
Height be 3-15cm, a diameter of 1-3cm in the hole, the height of the opening is 3-15cm.
3. according to the system any one of claim 1-2, it is characterised in that further comprise combustion gas air-introduced machine, wherein,
Described combustion gas air-introduced machine one end is connected with the outlet of the spray column, and the other end is connected with the fuel cartridge import.
4. according to the system any one of claim 1-2, it is characterised in that also including gasification furnace, the gasification furnace point
It is not connected with the fuel gas inlet and semicoke conveying device of the heat accumulation type radiant tube；Waste heat boiler, the waste heat boiler with it is described
The exhanst gas outlet of heat accumulation type radiant tube is connected.
5. according to the system any one of claim 1-2, it is characterised in that the catalyst-adding device includes：Urge
Agent hopper；Catalyst is responsible for, and the catalyst supervisor is connected with the catalyst hooper；Catalyst branch pipe, the catalyst
Branch pipe is connected with catalyst supervisor, and the catalyst branch pipe passes through the wall of the reactor cracking room and extended to described
Inside cracking room；Multiple catalyst ejector parts, the catalyst ejector part are arranged on the catalyst branch pipe, and positioned at described
Inside cracking room.
6. system according to claim 5, it is characterised in that the catalyst branch pipe is multiple and along the catalyst master
The length direction of pipe is arranged parallel to each other, and the catalyst branch pipe is arranged on the interlayer of the heat accumulation type radiant tube.
7. system according to claim 5, it is characterised in that the catalyst ejector part include catalyst ejection passage and
The nozzle being arranged on the catalyst ejection passage, regulating valve is provided with the nozzle.
8. according to the system any one of claim 1-2, it is characterised in that the loading hopper by the feeder with
The charging aperture is connected.
9. system according to claim 4, it is characterised in that also exported including semicoke, the semicoke outlet is arranged on institute
The bottom of pyrolysis chamber is stated, the semicoke outlet is connected with the semicoke conveying device.
10. a kind of method that system using any one of claim 1-9 carries out junked tire pyrolysis and catalytic pyrolysis,
It is characterised in that it includes following steps：
A. waste tyre particle is added in the reactor by charging aperture, heat is completed in the pyrolysis chamber of the reactor
Solution preocess；
B. oil gas caused by pyrolysis, by the communication member set on the heat-insulated brick wall of the reactor, enters the reactor
Cracking room；
C. oil gas caused by the pyrolysis is entered in the cracking room, and catalyst is sprayed on described by catalyst-adding device
In cracking room, oil gas caused by the pyrolysis completes catalytic pyrolysis process in the cracking room, produces cracking gas；
D. the cracking gas is entered in spray column by cracking gas outlet, and purified treatment is carried out to the cracking gas；
E. purified net cracking gas enters in fuel cartridge through combustion gas air-introduced machine, is stored.
11. according to the method for claim 10, it is characterised in that in the step a, the waste tyre particle is from described
The charging aperture on reactor top is added in the reactor, and is broken up by the heat accumulation type radiant tube in the reactor,
Pyrolysis char exports discharge from the semicoke of the reactor bottom；In the step a, the waste tyre particle is by the reaction
The heat accumulation type radiant tube in device pyrolysis chamber is heated to 500-600 DEG C, in the step b, oil gas quilt caused by the pyrolysis
The heat accumulation type radiant tube in the reactor cracking room is heated to 600-900 DEG C；In the step c, the catalyst leads to
Catalyst ejector part is crossed equably to be sprayed in the cracking room.
12. according to the method for claim 11, it is characterised in that the granularity of the waste tyre particle is below 20mm.
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| CN201610332324.4A CN105778975B (en) | 2016-05-19 | 2016-05-19 | A kind of junked tire pyrolysis and catalytic cracking system |
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| CN201610332324.4A CN105778975B (en) | 2016-05-19 | 2016-05-19 | A kind of junked tire pyrolysis and catalytic cracking system |
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| CN105778975B true CN105778975B (en) | 2018-01-19 |
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| ATE388214T1 (en) * | 2000-01-28 | 2008-03-15 | Stone & Webster Process Tech | MULTI-ZONE CRACKING OVEN |
| 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 |
| CN102210960B (en) * | 2011-06-10 | 2013-06-05 | 济南世纪华泰科技有限公司 | Technology and equipment for dedusting mixed oil gas |
| CN105400527A (en) * | 2015-12-08 | 2016-03-16 | 北京神雾环境能源科技集团股份有限公司 | Pyrolysis reactor |
| CN205974398U (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 | Junked tire pyrolysis and catalytic cracking system |
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