CN105778975A - Waste tire pyrolysis and catalytic cracking system - Google Patents
Waste tire pyrolysis and catalytic cracking system Download PDFInfo
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- CN105778975A CN105778975A CN201610332324.4A CN201610332324A CN105778975A CN 105778975 A CN105778975 A CN 105778975A CN 201610332324 A CN201610332324 A CN 201610332324A CN 105778975 A CN105778975 A CN 105778975A
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 135
- 238000004523 catalytic cracking Methods 0.000 title claims abstract description 20
- 239000010920 waste tyre Substances 0.000 title claims abstract description 19
- 238000005336 cracking Methods 0.000 claims abstract description 149
- 239000007789 gas Substances 0.000 claims abstract description 128
- 239000003054 catalyst Substances 0.000 claims description 112
- 238000009825 accumulation Methods 0.000 claims description 68
- 238000000034 method Methods 0.000 claims description 43
- 239000011449 brick Substances 0.000 claims description 36
- 238000009413 insulation Methods 0.000 claims description 35
- 239000007921 spray Substances 0.000 claims description 32
- 238000007233 catalytic pyrolysis Methods 0.000 claims description 24
- 239000000919 ceramic Substances 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 22
- 239000000446 fuel Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 21
- 239000000567 combustion gas Substances 0.000 claims description 19
- 238000002309 gasification Methods 0.000 claims description 17
- 239000002737 fuel gas Substances 0.000 claims description 10
- 239000002918 waste heat Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 229930195733 hydrocarbon Natural products 0.000 abstract description 12
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 12
- 239000001257 hydrogen Substances 0.000 abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 230000004044 response Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000026676 system process Effects 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 3
- 229910000514 dolomite Inorganic materials 0.000 description 3
- 239000010459 dolomite Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 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
- 230000000694 effects Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000036031 hyperthermia Effects 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
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 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
Abstract
The invention belongs to the technical field of waste tire pyrolysis and particularly relates to a waste tire pyrolysis and catalytic cracking system based on heat accumulating type radiant tube heating, and the system is used for preparing clean combustible gas. Aiming at the shortcomings of the prior art, the waste tire pyrolysis and catalytic cracking system is designed and developed; the reaction system can perform pyrolysis and catalytic cracking; the oil gas generated by a pyrolysis chamber can enter a cracking chamber for catalytic cracking; macromolecular tar molecules are cracked into small-molecular gaseous hydrocarbon, and a large amount of hydrogen is generated by a catalytic cracking way while the gas quality is high; and therefore, the problem that pyrolytic oil is hard to utilize is avoided, and clean and efficient utilization of a waste tire is truly realized.
Description
Technical field
The invention belongs to junked tire pyrolytic technique field, be specifically related to a kind of junked tire pyrolysis based on heat accumulation type radiant tube heating and catalytic cracking system, be used for producing cleaning combustible gas.
Background technology
Along with the generally raising of the fast development of China's economy and living standards of the people, automobile has stepped among daily life, thereby produces substantial amounts of junked tire.Within 2006, China's tire yield is up to 2.8 hundred million, ranks first in the world, the junked tire produced then also up to 1.4 hundred million, about 3,600,000 tons.The accumulation of a large amount of junked tires not only land occupation, is also easy to grow mosquito antibacterial, spreads disease, harm residents ' health, and pole fire hazardous, causes environmental pollution.Junked tire is recycled, is then possible not only to alleviate its pressure to environment, reduce and pollute, more can realize the effective recycling of resource.The method processing at present junked tire has the prototype transformation of the way, produces reclaimed rubber and rubber powder, burning and pyrolysis etc., and wherein pyrolytic technique is a kind of method of process junked tire have very much potentiality.Junked tire pyrolytic technique is to be thermally decomposed in anoxia or noble gas by junked tire, can produce pyrolysis gas, pyrolysis oil and charcoal residue etc..The further processed process of these products can change into the high-value product with various uses.Compared with traditional treatment method, pyrolysismethod be possible not only to reclaim high added value product, and can reclaim nearly 70% the energy, there is higher economy and environmental benefit.At present, the pyrolytic technique of junked tire mainly has moving bed pyrolysis technique, waste-tire recycling system etc..But, the pyrolisis of tires oil ingredient obtained through pyrolytic technique is extremely complex, and the shortcomings such as pH value is relatively low, oxygen content is high, heat stability is poor, viscosity is big make it be difficult to directly utilize and store, it is difficult to industrial applications.Therefore, how to design a kind of efficient cleaning combustible gas that produces and become the problem that this area needs solution badly.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, design and develop a kind of junked tire pyrolysis and catalytic cracking reaction system, this response system can carry out pyrolysis and two kinds of operations of catalytic pyrolysis, the oil gas that pyrolysis chamber produces, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons, and by the mode of catalytic pyrolysis, produce hydrogen in a large number, GAS QUALITY is high, producing, thus avoiding, the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
The invention provides a kind of junked tire pyrolysis and catalytic cracking system, according to embodiments of the invention, this system includes: loading hopper；Feeder, described feeder is connected with described loading hopper 1；Pyrolysis and cracking reactor, including: charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, described charging aperture is arranged on the roof of described pyrolysis chamber, and the outlet of described cracking gas is arranged on the sidewall of described cracking room；And: heat accumulation type radiant tube, described heat accumulation type radiant tube is along the short transverse multi-tier arrangement of described reactor inside described pyrolysis chamber and described cracking room, and every layer has the many described heat accumulation type radiant tubes arranged in the horizontal direction；Heat insulation brick wall, described heat insulation brick wall is arranged on 2/3 place of described reactor transverse width, vertically through, in described reactor, the inner space of described reactor being separated into described pyrolysis chamber and described cracking room；Catalyst-adding device, it is connected with described cracking room, for being put in described cracking room by catalyst for cracking；Communication member, described communication member is arranged on the bottom of described heat insulation brick wall, for the oil gas produced described pyrolysis chamber, by described communication member, is passed into described cracking room；Ceramic filter, described ceramic filter one end is connected with the outlet of described cracking gas, and the other end is connected with described spray column；Spray column, described spray column is connected with described ceramic filter；Fuel cartridge, described fuel cartridge is connected with described spray column.
Inventor have found that, system process according to embodiments of the present invention is simple, and easy to operate, this response system can carry out pyrolysis and two kinds of operations of catalytic pyrolysis, the oil gas that pyrolysis chamber produces, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons, and by the mode of catalytic pyrolysis, produce hydrogen in a large number, GAS QUALITY is high, produces, thus avoiding, the problem that pyrolysis oil is difficult by, and the clean and effective being truly realized junked tire utilizes.Meanwhile, this reactor have employed heat accumulation type radiant tube heating technique without gas, solid heat carrier heating, simplifies system process while improve the thermal efficiency of reactor.
According to embodiments of the invention, described communication member is the pore area including multiple hole being arranged on described heat insulation brick wall；Or described communication member is on described heat insulation brick wall longitudinal length, is positioned at the opening of lower position.
According to embodiments of the invention, the thickness of described heat insulation brick wall is 5-15cm, and the height of described pore area is 3-15cm, and the diameter in described hole is 1-3cm, and the height of described opening is 3-15cm.
According to embodiments of the invention, described system farther includes combustion gas air-introduced machine, and wherein, described combustion gas air-introduced machine one end is connected with the outlet of described spray column, and the other end is connected with described fuel cartridge import.
According to embodiments of the invention, described system also includes gasification furnace, and described gasification furnace is connected with the fuel gas inlet of described heat accumulation type radiant tube and semicoke conveyer device respectively；Waste heat boiler, described waste heat boiler is connected with the exhanst gas outlet of described heat accumulation type radiant tube.
According to embodiments of the invention, described catalyst-adding device includes: catalyst hooper；Catalyst is responsible for, and described catalyst supervisor be connected with described catalyst hooper；Catalyst arm, described catalyst arm is connected with described catalyst supervisor, and described catalyst arm passes the wall of described reactor cracking room and extends to inside described cracking room；Multiple catalyst ejector parts, described catalyst ejector part is arranged on described catalyst arm, and is positioned at inside described cracking room；Preferably, described catalyst arm is multiple and the length direction be responsible for along described catalyst is arranged parallel to each other, and described catalyst arm is arranged on the interlayer of described heat accumulation type radiant tube；Preferably, described catalyst ejector part includes catalyst ejection passage and the nozzle being arranged on described catalyst ejection passage, and described nozzle is provided with adjustment valve.
According to embodiments of the invention, described loading hopper is connected with described charging aperture by described feeder.
According to embodiments of the invention, described system also includes semicoke outlet, and the outlet of described semicoke is arranged on the bottom of described pyrolysis chamber, and the outlet of described semicoke is connected with described semicoke conveyer device.
In another aspect of the present invention, the invention provides a kind of method utilizing foregoing system to carry out junked tire pyrolysis and catalytic pyrolysis.According to embodiments of the invention, the method comprises the following steps:
A. waste tyre particle is joined in described reactor by charging aperture, in the pyrolysis chamber of described reactor, complete pyrolytic process；
B. the oil gas that pyrolysis produces, by the communication member arranged on the heat insulation brick wall of described reactor, enters into the cracking room of described reactor；
C. the oil gas that described pyrolysis produces enters in described cracking room, and catalyst is sprayed in described cracking room by catalyst-adding device, and described pyrolysis oil gas completes catalytic pyrolysis process in described cracking room, produces cracking gas；
D. described cracking gas enters in spray column by cracking gas outlet, and described cracking gas is carried out purified treatment；
E. purified clean cracking gas enters in fuel cartridge through combustion gas air-introduced machine, stores.
According to embodiments of the invention, in described step a, described waste tyre particle joins described reactor from the described charging aperture on described reactor top, and is broken up by the heat accumulation type radiant tube in described reactor, and pyrolysis char exports from the semicoke of described reactor bottom and discharges；In described step a, described waste tyre particle is heated to 500-600 DEG C by the described heat accumulation type radiant tube in described reactor pyrolysis chamber, and in described step b, described pyrolysis oil gas is heated to 600-900 DEG C by the described heat accumulation type radiant tube in described reactor cracking room；In described step c, described catalyst is sprayed in described cracking room equably by catalyst ejector part；Preferably, the granularity of described waste tyre particle is below 20mm.
The beneficial effects of the present invention is:
1) taking the junked tire of heat accumulation type radiant tube moving bed process heating below 20mm, uniformity of temperature profile, heats is good, response system simple in construction, easy to operate；
2) reactor is divided into pyrolysis chamber and cracking room, the oil gas that pyrolysis chamber produces, and can carry out Deep catalytic cracking at cracking room, and the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons, and by the mode of catalytic pyrolysis, produces a large amount of hydrogen, and combustion gas quality is high；
3) this response system can produce substantial amounts of cracking gas product, it is to avoid the problem that pyrolysis oil is difficult by, and the clean and effective being truly realized junked tire utilizes；
4) two kinds of operations can be carried out in a body of heater, unite two into one, save construction cost and floor space.
Accompanying drawing explanation
Fig. 1 is the structure chart of junked tire pyrolysis of the present invention and catalytic cracking system.
Fig. 2 is the structure of reactor figure of junked tire pyrolysis of the present invention and catalytic cracking system.
Fig. 3 is the front view of the heat insulation brick wall in reactor of the present invention.
Wherein, 1. loading hopper；2. feeder；3. thermal storage type moving bed reactor；310. cracking gas exports；311. exhanst gas outlet；320. charging aperture；321. air intake；322. fuel gas inlet；330. semicoke exports；340. cracking room；350. pyrolysis chamber；360. communication member；370. heat insulation brick wall；380. heat accumulation type radiant tube；4. ceramic filter；5. spray column；6. combustion gas air-introduced machine；7. fuel cartridge；8. gasification furnace；9. conveying worm；10. waste heat boiler；11. catalyst hooper；12. catalyst ejection passage；13. catalyst is responsible for；14. catalyst arm.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with specific embodiment, the present invention is described in further detail.The embodiments described below is illustrative of, and is only used for explaining the present invention, and is not considered as limiting the invention.Unreceipted concrete technology or condition in embodiment, technology or condition described by the document in this area or carry out according to product description.
According to an aspect of the present invention, the invention provides a kind of junked tire pyrolysis and catalytic cracking system, Fig. 1 is the structure of junked tire pyrolysis and catalytic cracking system, as shown in Figure 1, this system includes loading hopper 1, feeder 2, and described loading hopper 1 and described feeder 2 connect；nullPyrolysis and cracking reactor 3，Described pyrolysis and cracking reactor 3 include: charging aperture 320、Pyrolysis chamber 350、Cracking room 340、Cracking gas outlet 310、Heat accumulation type radiant tube 380、Heat insulation brick wall 370、Catalyst-adding device、Communication member 360，Wherein，Described charging aperture is arranged on the roof of described pyrolysis chamber，The outlet of described cracking gas is arranged on the sidewall of described cracking room，Described heat insulation brick wall is vertically through in described reactor，The inner space of described reactor is separated into described pyrolysis chamber and described cracking room，Described catalyst-adding device is connected with described cracking room，For catalyst for cracking is put in described cracking room，Described communication member is arranged on described heat insulation brick wall，Pyrolysis chamber is connected with cracking room，Preferably，Described communication member is arranged on the bottom of described heat insulation brick wall，For the oil gas that described pyrolysis chamber is produced，By described communication member，It is passed into described cracking room；Ceramic filter 4, described ceramic filter is connected with the outlet of described cracking gas；Spray column 5, described spray column is connected with described ceramic filter；Fuel cartridge 7, described fuel cartridge is connected with described spray column.
Inventor have found that, system process according to embodiments of the present invention is simple, and easy to operate, this response system can carry out pyrolysis and two kinds of operations of catalytic pyrolysis, the oil gas that pyrolysis chamber produces, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons, and by the mode of catalytic pyrolysis, produce hydrogen in a large number, GAS QUALITY is high, produces, thus avoiding, the problem that pyrolysis oil is difficult by, and the clean and effective being truly realized junked tire utilizes.Meanwhile, this reactor have employed heat accumulation type radiant tube heating technique without gas, solid heat carrier heating, simplifies system process while improve the thermal efficiency of reactor.
According to a particular embodiment of the invention, concrete particle diameter suitable in this junked tire pyrolysis and the junked tire of catalytic cracking system is not particularly limited, according to embodiments of the invention, junked tire can also can be little granule for bulk, and in some currently preferred embodiments of the present invention, the granularity of the waste tyre particle that this reactor adopts is below 20mm, thus, can making full use of little granule junked tire, resource utilization is high, and the problem that can solve the problem that bulk deposition contaminated environment.
According to embodiments of the invention, this system is used for pyrolysis and catalytic pyrolysis junked tire, and the kind of catalyst, particle diameter and consumption that cracking junked tire adopts are not particularly limited, and those skilled in the art can select as required flexibly.In some currently preferred embodiments of the present invention, catalyst dolomite, Ni can be adopted catalyst based or Fe catalyst based in one or more mixing use, the particle diameter of catalyst can for being not more than 0.5 millimeter, and the consumption of catalyst can be the 1%～15% of material gross mass.Thus, catalytic efficiency is higher, and pyrolysis oil gas completes catalytic pyrolysis process in cracking room, the tar molecules making macromole is cracked into micromolecular gaseous hydrocarbons, producing substantial amounts of hydrogen-rich gas, it is to avoid produce the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.
According to a particular embodiment of the invention, the type of furnace suitable in the described reactor 3 of this system is not particularly limited, can be thermal storage type moving bed pyrolysis and cracking reactor 3 can also be other type, such as non-heat accumulating type or non-moving type etc., as long as that can pass through the integration of heat insulation brick wall is divided into pyrolysis chamber and cracking room.In some currently preferred embodiments of the present invention, this reactor 3 adopts thermal storage type moving bed reactor 3.
According to a particular embodiment of the invention, Fig. 2 is pyrolysis and cracking reactor 3 structure chart of this junked tire pyrolysis and catalytic cracking system, as shown in Figure 2, described heat insulation brick wall is arranged in reactor, preferably, being positioned at 2/3 place of reactor transverse width, the thickness of heat insulation brick wall is 5-15cm.Heat insulation brick wall is vertically through in reactor, the inner space of reactor is separated into pyrolysis chamber and cracking room, this structure makes to be provided with pyrolysis chamber and cracking room in a body of heater, the oil gas that pyrolysis chamber produces, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons, produces substantial amounts of cracking gas, thus avoiding the problem producing pyrolysis oil dust-laden.Further, two kinds of operations can be carried out in a body of heater, unite two into one, save construction cost and floor space.
According to a particular embodiment of the invention, the concrete kind of described communication member 360 is not particularly limited, as long as can be connected with cracking room pyrolysis chamber, thus the oil gas that pyrolysis chamber produces is passed into cracking room.In some embodiments of the invention, when Fig. 3 is in terms of the from left to right of reactor, the front view of heat insulation brick wall, as it is shown on figure 3, communication member can be the pore area including multiple hole being arranged on heat insulation brick wall, it is preferable that in situation, the height of described pore area is 3-15cm, and the diameter in described hole is 1-3cm.Communication member can also be on heat insulation brick wall longitudinal length, is positioned at the opening of lower position, it is preferable that in situation, and the height of described opening is 3-15cm.
According to a particular embodiment of the invention, catalyst-adding device includes: catalyst hooper 11；Catalyst supervisor 13, described catalyst supervisor be connected with described catalyst hooper；Catalyst arm 14, described catalyst arm is connected with described catalyst supervisor, and described catalyst arm passes the wall of described reactor cracking room and extends to inside described cracking room, the interlayer of the heat accumulation type radiant tube that catalyst arm is arranged in cracking room；At least one catalyst ejector part, described catalyst ejector part is arranged on described catalyst arm, and is positioned at inside described cracking room；Preferably, described catalyst arm is multiple and the length direction be responsible for along described catalyst is arranged parallel to each other, and catalyst arm is arranged on the interlayer of described heat accumulation type radiant tube；Preferably, described catalyst ejector part includes catalyst ejection passage 12 and the nozzle being arranged on described catalyst ejection passage, described nozzle is provided with adjustment valve, it is preferred that be furnished with catalyst ejection passage in cracking room around every radial canal.
According to embodiments of the invention, catalyst arm can extend to the center of cracking room.Thus, catalyst and pyrolysis oil gas mix homogeneously are conducive to.And catalyst arm can be multiple and arranged parallel to each other along the length direction of catalyst supervisor.Thus, be conducive to catalyst to be uniformly distributed in cracking room, and then improve catalytic efficiency.
According to embodiments of the invention, catalyst-adding device can include 10-25 layer catalyst ejector part.Thus, be conducive to catalyst to be evenly distributed at cracking room, improve catalytic efficiency.According to embodiments of the invention, catalyst ejector part can include catalyst ejection passage and the nozzle being arranged on catalyst ejection passage, thus, catalyst can through catalyst ejection passage under the effect of carrier gas, and spray in the pyrolysis oil gas of cracking room by nozzle, further, nozzle is also provided with regulate valve, is thus easy to accurately control the addition of catalyst.
According to embodiments of the invention, the quantity of catalyst ejector part is not particularly limited, and those skilled in the art can set as required.In an embodiment of the present invention, each catalyst arm is provided with multiple catalyst ejector part, it can be provided with 4-15 nozzle.Thus, be conducive to catalyst and pyrolysis oil gas mix homogeneously, improve catalytic efficiency.
According to embodiments of the invention, the connected mode that catalyst arm is responsible for catalyst is not particularly limited, and includes but not limited to removably or be connected to catalyst supervisor with welding.Ability and technical staff can select according to actual operating conditions.
According to embodiments of the invention, carrier gas delivers part can be connected to the end of catalyst supervisor, and concrete connected mode is not particularly limited, it is possible to detachably connected or be soldered to catalyst supervisor.Thus, it is simple to carrier gas delivers part work, be conducive to improving work efficiency.
According to a particular embodiment of the invention, as it is shown in figure 1, described charging aperture is arranged on the roof on top, pyrolysis chamber, loading hopper is connected with described charging aperture by feeder.According to embodiments of the invention, as it is shown in figure 1, this system may further include: loading hopper and feeder, the outlet of described loading hopper is connected with the entrance of described feeder, and the outlet of described feeder is connected with described charging aperture.According to embodiments of the invention, the concrete kind of feeder is not particularly limited, as long as can be effectively delivered in reactor by the junked tire in loading hopper.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 controlled, and device structure is simple, easy to operate.
According to a particular embodiment of the invention, as it is shown in figure 1, described reactor further comprises semicoke outlet 330, the outlet of described semicoke is arranged on the bottom of described pyrolysis chamber, and the outlet of described semicoke is connected with described semicoke conveyer device 9.Thus, it is possible to utilize semicoke conveyer device to be carried by the semicoke obtained in reactor.The concrete kind of semicoke conveyer device is not particularly limited, and includes but not limited to star or conveying worm 9.Thereby, it is possible to realize the Automatic Conveying to semicoke, and conveying capacity is controlled, and device structure is simple, easy to operate.
According to embodiments of the invention, with reference to Fig. 2, described inside reactor is provided with multilamellar and is arranged in the heat accumulation type radiant tube within described pyrolysis chamber and described cracking room along the short transverse of described reactor, and every layer of heat accumulation type radiant tube can include the heat accumulation type radiant tube of multiple parallel to each other and horizontally spaced distribution.According to embodiments of the invention, in described pyrolysis chamber and cracking room, distributed at least one described heat accumulation type radiant tube respectively, it is preferred that described at least one heat accumulation type radiant tube is uniformly distributed.Heat accumulation type radiant tube can be effective to the oil gas in pyrolysis material and cracking room is heated, it is made to carry out pyrolysis and cracking reaction, specifically, it is possible in heat accumulation type radiant tube, pass into combustible gas and air, combustible gas burning is made to realize the heating function to the oil gas in pyrolysis material and cracking room.This reactor adopts 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, surface temperature difference is little, exhaust gas temperature is low, and the thermal efficiency is high, simplifies system process while improve the thermal efficiency of reactor, response system simple in construction, easy to operate.
According to embodiments of the invention, in the pyrolysis chamber of described reactor, pyrolysis material moves from top to bottom, and pyrolysis material can be broken up and make it be uniformly distributed by the heat accumulation type radiant tube arranged in described reactor.According to embodiments of the invention, the shape of heat accumulation type radiant tube is not particularly limited, in some embodiments of the invention, it is possible to for cylinder, is thus conducive to breaing up of material, it is achieved dispersed in pyrolysis chamber of mixed pyrolysis material.The level interval of radial canal is 200-500mm, and vertical interval is 200-700mm, and the radial canal number of plies is 10-25 layer, and reactor width is 2-6m, and height for reactor is 3-20m.Additionally, heat accumulation type radiant tube can be the unidirectional heat accumulation type radiant tube being evenly arranged, and tube wall temperature utilizes gas control valve to control 500～700 DEG C of scopes, and pyrolysis material stops 1-50 minute in the reactor from top to bottom, and it is heated to 500～600 DEG C, complete pyrolytic process.Meanwhile, heat accumulation type radiant tube can take the combustion system of regularly commutation so that the surface temperature difference of single heat accumulation type radiant tube only has about 30 DEG C, it does not have district of localized hyperthermia, thus, is conducive to improving the thermal efficiency.
According to a particular embodiment of the invention, described reactor is provided with fuel gas inlet 322, air intake 321 and exhanst gas outlet 311, wherein, fuel gas inlet and exhanst gas outlet are connected with heat accumulation type radiant tube respectively, it is respectively used to pass into combustible gas and discharge flue gas, air intake is connected with source of the gas and heat accumulation type radiant tube respectively, for being passed in heat accumulation type radiant tube by the air that source of the gas produces.Thus, can be delivered in gasification furnace by pyrolysis chamber obtains semicoke by fuel gas inlet, semicoke is carried out gasification process, to obtain combustible gas and lime-ash, the combustible gas obtained can enter in heat accumulation type radiant tube by fuel gas inlet, simultaneously, it is possible to use blower fan to pass into air in heat accumulation type radiant tube by air intake, make combustible gas burning that the pyrolysis material in pyrolysis chamber is heated.It addition, the flue gas in heat accumulation type radiant tube is transported in waste and old boiler by exhanst gas outlet, recovered flue gas, make flue gas will not be discharged in air.Thus, it is possible to semicoke is utilized fully, do not cause waste, good economy performance, and, flue gas is reclaimed, does not cause environmental pollution, environmental protection.
According to embodiments of the invention, this system may further include: ceramic filter, and described ceramic filter is arranged between cracking gas outlet and the described spray column of described cracking room.The entrance of described ceramic filter exports with the cracking gas of described cracking room and is connected, and the outlet of described ceramic filter connects with the entrance of described spray column.The concrete kind of ceramic filter is not particularly limited, as long as the cracking gas that cracking gas outlet is discharged can be effectively taking place dust removal process.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: spray column, described spray column is arranged between described ceramic filter and described combustion gas air-introduced machine.The entrance of described spray column is connected with the outlet of described ceramic filter, and the outlet of described spray column is connected with the entrance of described combustion gas air-introduced machine.The concrete kind of spray column is not particularly limited, as long as can washing, purifying cracking gas.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: combustion gas air-introduced machine 6, wherein, described combustion gas air-introduced machine is arranged between described spray column and described fuel cartridge.Described combustion gas air-introduced machine entrance is connected with the outlet of described spray column, and the outlet of described combustion gas air-introduced machine is connected with described fuel cartridge import.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: fuel cartridge, described fuel cartridge is arranged on one end of described combustion gas air-introduced machine.The entrance of described fuel cartridge is connected with the outlet of described combustion gas air-introduced machine.The concrete kind of fuel cartridge is not particularly limited, as long as cracking gas can be stored.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: gasification furnace 8, described gasification furnace is arranged between the fuel gas inlet of described heat accumulation type radiant tube and semicoke conveyer device.Described gasification furnace entrance is connected with the outlet of described semicoke conveyer device, and the outlet of described gasification furnace is connected with the fuel gas inlet of described heat accumulation type radiant tube.The concrete kind of gasification furnace is not particularly limited, as long as semicoke can be carried out gasification process, to obtain combustible gas and lime-ash, and, the lime-ash obtained after gasification is discharged, the combustible gas obtained can enter in heat accumulation type radiant tube by the fuel gas inlet of heat accumulation type radiant tube, by combustible gas burning, the pyrolysis material in pyrolysis chamber is heated.Thereby, it is possible to realize semicoke is utilized fully, do not cause waste, good economy performance.
According to embodiments of the invention, as it is shown in figure 1, this system may further include: waste heat boiler 10, described waste heat boiler is arranged on exhanst gas outlet one end of described heat accumulation type radiant tube.The entrance of described waste heat boiler is connected with the exhanst gas outlet of described heat accumulation type radiant tube.The concrete kind of waste and old boiler is not particularly limited, as long as can recovered flue gas.Thus, flue gas is reclaimed, do not cause environmental pollution, environmental protection.
In another aspect of the present invention, the invention provides a kind of method utilizing foregoing system to carry out junked tire pyrolysis and catalytic pyrolysis.According to embodiments of the invention, the method comprises the following steps:
A. waste tyre particle is joined in described reactor by charging aperture 320, in the pyrolysis chamber of described reactor, complete pyrolytic process.Wherein, described junked tire enters into feeder 2 from loading hopper 1, the charging aperture 320 on reacted device top joins in thermal storage type moving bed reactor 3, and broken up by the heat accumulation type radiant tube in described reactor, pyrolysis char exports 330 discharges from the semicoke of reactor bottom, and is preferably conveying worm through semicoke conveyer device 9() discharge.
According to embodiments of the invention, the concrete particle diameter of junked tire is not particularly limited, junked tire can be block junked tire can also be little granule junked tire, in some currently preferred embodiments of the present invention, the granularity of the waste tyre particle that this reactor adopts is below 20mm, thus, it is possible to make full use of little granule junked tire, resource utilization is high, and the problem that can solve the problem that bulk deposition contaminated environment.
According to embodiments of the invention, in pyrolysis chamber, junked tire moves from top to bottom, junked tire can be broken up and make it be uniformly distributed by 15 heat accumulation type radiant tubes arranged in pyrolysis chamber, waste tyre particle stops 1-50 minute in the reactor from top to bottom, and waste tyre particle is heated to 500～600 DEG C by the heat accumulation type radiant tube in reactor pyrolysis chamber.Concrete, it is possible to control the temperature of heat accumulation type radiant tube tube wall 500～700 DEG C of scopes by gas valve, and be heated to 500～600 DEG C, complete pyrolytic process.
B. the oil gas that pyrolysis produces, by the communication member arranged on the heat insulation brick wall of described reactor, enters into the cracking room of described reactor.
According to embodiments of the invention, heat insulation brick wall is arranged in reactor, preferably, being positioned at 2/3 place of reactor transverse width, the thickness of heat insulation brick wall is 5-15cm, heat insulation brick wall is vertically through in reactor, the inner space of reactor is separated into pyrolysis chamber and cracking room, and this structure makes to be provided with pyrolysis chamber and cracking room in a body of heater, the oil gas that pyrolysis chamber produces, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons.Thus, two kinds of operations can be carried out in a body of heater, unite two into one, save construction cost and floor space.According to embodiments of the invention, communication member can be the pore area including at least one hole being arranged on heat insulation brick wall, it is also possible to for, on heat insulation brick wall longitudinal length, being positioned at the opening of lower position.Concrete, the oil gas of pyrolysis generation, by the pore area of the heat insulation brick wall bottom of reactor or opening, enter into cracking room.
C. the oil gas that described pyrolysis produces enters in described cracking room, and catalyst is sprayed in described cracking room by catalyst-adding device, and described pyrolysis oil gas completes catalytic pyrolysis process in described cracking room, produces cracking gas.
According to embodiments of the invention, this system is used for pyrolysis and catalytic pyrolysis junked tire, and the kind of catalyst, particle diameter and consumption that cracking junked tire adopts are not particularly limited, and those skilled in the art can select as required flexibly.In some currently preferred embodiments of the present invention, catalyst dolomite, Ni can be adopted catalyst based or Fe catalyst based in one or more mixing use, the particle diameter of catalyst can for being not more than 0.5 millimeter, and the consumption of catalyst can be the 1%～15% of junked tire gross mass.Thus, catalytic efficiency is higher, and pyrolysis oil gas completes catalytic pyrolysis process in cracking room, the tar molecules making macromole is cracked into micromolecular gaseous hydrocarbons, producing substantial amounts of hydrogen-rich gas, it is to avoid produce the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.
According to embodiments of the invention, at least one described heat accumulation type radiant tube is distributed in described cracking room, preferably, described at least one heat accumulation type radiant tube is uniformly distributed, and, the catalyst ejection passage 12 of at least one it is furnished with, it is preferred that described heat accumulation type radiant tube and the distribution of described catalyst ejection passage 12 alternating parallel around described every heat accumulation type radiant tube.The oil gas that heat accumulation type radiant tube can be effective to cracking is indoor is heated so that it is carry out catalytic cracking reaction.In some currently preferred embodiments of the present invention, pyrolysis oil gas is heated to 600-900 DEG C by the heat accumulation type radiant tube in reactor cracking room, specifically, catalyst ejection passage 12 it is furnished with around every radial canal, the catalyst of particle diameter≤0.5mm is sprayed in cracking room equably by catalyst ejection passage 12, it can be 600～900 DEG C by the temperature of gas valve control heat accumulation type radiant tube tube wall, pyrolysis oil gas is heated to rapidly 600-900 DEG C in the reactor, complete thermal cracking processes, thus, the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons, produce substantial amounts of cracking gas (hydrogen-rich gas), avoid and produce the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.
D. described cracking gas is by cracking gas outlet 310 discharge, enters in spray column 5, described cracking gas is carried out purified treatment after ceramic filter 4 carries out dust removal process.
According to embodiments of the invention, what be connected with cracking gas outlet 310 is ceramic filter 4, described ceramic filter 4 is also connected with spray column 5, wherein, described ceramic filter 4 is that described spray column 5 is for the cracking gas after dedusting is carried out washing, purifying process for the cracking gases of cracking gas outlet 310 discharge are effectively taking place dust removal process.Concrete, cracking gas, by cracking gas outlet 310, enters udst separation in ceramic filter 4, subsequently into washing, purifying in spray column 5, cracking gas after being purified, thus avoiding the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized junked tire utilizes.
E. purified clean cracking gas enters in fuel cartridge 7 through combustion gas air-introduced machine 6, stores.
According to embodiments of the invention, what be connected with spray column 5 is fuel cartridge 7, and described fuel cartridge 7 is for storing cracking gas, and the cracking gas after purification sends into fuel cartridge 7 through combustion gas air-introduced machine 6, stores.
Embodiment one:
(1) junked tire being crushed to granularity≤20mm enters thermal storage type moving bed reactor 3 through feeder 2 in loading hopper 1, and moving-burden bed reactor 3 is insulated brick wall and is divided into pyrolysis chamber and cracking room.
(2) being evenly arranged unidirectional heat accumulation type radiant tube in pyrolysis chamber, tube wall temperature utilizes gas control valve to control 500～700 DEG C of scopes, and junked tire stops 1-50 minute in the reactor from top to bottom, and is heated to 500～600 DEG C, completes pyrolytic process.
(3) oil gas that pyrolysis produces, opening by the heat insulation brick wall of reactor lower part, enter into cracking room, cracking room has been evenly arranged unidirectional heat accumulation type radiant tube, tube wall temperature utilizes gas control valve to control 600～900 DEG C of scopes, catalyst ejection passage it is furnished with around every radial canal, the catalyst of particle diameter≤0.5mm is sprayed in cracking room equably by catalyst ejection passage 12, pyrolysis oil gas is heated to 600-900 DEG C in cracking room, complete catalytic pyrolysis process, the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons, produce substantial amounts of hydrogen-rich gas, avoid and produce the problem that pyrolysis oil is difficult by, the clean and effective being truly realized junked tire utilizes.Catalyst dolomite, Ni can be adopted catalyst based or Fe catalyst based in one or more mixing use.
(4) cracking gas passes through reactor outlet, enters dedusting in ceramic filter 4, and the cracking gas after dedusting enters washing in spray column 5 and purifies further, and the clean cracking gas after washing sends into fuel cartridge 7 through combustion gas blower fan 6, can be used for producing the products such as artificial natural gas.
(5) semicoke that junked tire pyrolysis produces, sends into gasification furnace 8 by conveying worm 9, and gasification gas can supply radial canal burning, and the lime-ash after gasification is discharged.
(6) flue gas that heat accumulation type radiant tube burning produces, enters waste heat boiler and reclaims heat, produce high-quality steam.
Inventor have found that, the method according to embodiments of the present invention, system structure according to embodiments of the present invention is simple, and easy to operate, uniformity of temperature profile, heats is good.Reactor is divided into pyrolysis chamber and cracking room, the oil gas that pyrolysis chamber produces, cracking room can be entered and carry out catalytic pyrolysis, the tar molecules of macromole is cracked into micromolecular gaseous hydrocarbons, produce substantial amounts of cracking gas, thus avoiding the problem producing pyrolysis oil dust-laden, the clean and effective being truly realized junked tire utilizes.Further, this system is provided with pyrolysis chamber and cracking room in a body of heater so that two kinds of operations can be carried out in a body of heater, unite two into one, saves construction cost and floor space.Meanwhile, this reactor have employed heat accumulation type radiant tube heating technique without gas, solid heat carrier heating, simplifies system process while improve the thermal efficiency of reactor.
Utilizing junked tire pyrolysis and catalytic cracking system that junked tire is processed, the basic data of raw material is in Table 1.
Table 1: junked tire basic data
Utilizing this response system to process junked tire, the gas products productivity obtained is 58%, and pyrolytic tar is almost all cracked into gaseous products, and factor of created gase is high.In cracking gas, hydrogen content is 45%, and quality is high.
In describing the invention, it is to be understood that term " first ", " second " only for descriptive purposes, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, what the schematic representation of above-mentioned term is not necessarily referring to is identical embodiment or example.And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner.Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is not considered as limiting the invention, above-described embodiment can be changed, revises, replace and modification, simultaneously for one of ordinary skill in the art by those of ordinary skill in the art within the scope of the invention, according to the thought of the application, all will change in specific embodiments and applications.
Claims (10)
1. a junked tire pyrolysis and catalytic cracking system, it is characterised in that including:
Loading hopper；
Feeder, described feeder is connected with described loading hopper；
Pyrolysis and cracking reactor, including: charging aperture, pyrolysis chamber, cracking room and cracking gas outlet, described charging aperture is arranged on the roof of described pyrolysis chamber, and the outlet of described cracking gas is arranged on the sidewall of described cracking room；And:
Heat accumulation type radiant tube, described heat accumulation type radiant tube is along the short transverse multi-tier arrangement of described reactor inside described pyrolysis chamber and described cracking room, and every layer has the many described heat accumulation type radiant tubes arranged in the horizontal direction；
Heat insulation brick wall, described heat insulation brick wall is arranged on 2/3 place of described reactor transverse width, vertically through, in described reactor, the inner space of described reactor being separated into described pyrolysis chamber and described cracking room；
Catalyst-adding device, it is connected with described cracking room, for being put in described cracking room by catalyst for cracking；
Communication member, described communication member is arranged on the bottom of described heat insulation brick wall, for the oil gas produced described pyrolysis chamber, by described communication member, is passed into described cracking room；
Ceramic filter, described ceramic filter one end is connected with the outlet of described cracking gas, and the other end is connected with described spray column；
Spray column, described spray column is connected with described ceramic filter；
Fuel cartridge, described fuel cartridge is connected with described spray column.
2. system according to claim 1, it is characterised in that described communication member is the pore area including multiple hole being arranged on described heat insulation brick wall；Or described communication member is on described heat insulation brick wall longitudinal length, is positioned at the opening of lower position.
3. system according to claim 2, it is characterised in that the thickness of described heat insulation brick wall is 5-15cm, the height of described pore area is 3-15cm, and the diameter in described hole is 1-3cm, and the height of described opening is 3-15cm.
4. the system according to any one of claim 1-3, it is characterised in that farther include combustion gas air-introduced machine, wherein, described combustion gas air-introduced machine one end is connected with the outlet of described spray column, and the other end is connected with described fuel cartridge import.
5. the system according to any one of claim 1-3, it is characterised in that also including gasification furnace, described gasification furnace is connected with the fuel gas inlet of described heat accumulation type radiant tube and semicoke conveyer device respectively；Waste heat boiler, described waste heat boiler is connected with the exhanst gas outlet of described heat accumulation type radiant tube.
6. the system according to any one of claim 1-3, it is characterised in that described catalyst-adding device includes: catalyst hooper；Catalyst is responsible for, and described catalyst supervisor be connected with described catalyst hooper；Catalyst arm, described catalyst arm is connected with described catalyst supervisor, and described catalyst arm passes the wall of described reactor cracking room and extends to inside described cracking room；Multiple catalyst ejector parts, described catalyst ejector part is arranged on described catalyst arm, and is positioned at inside described cracking room；Preferably, described catalyst arm is multiple and the length direction be responsible for along described catalyst is arranged parallel to each other, and described catalyst arm is arranged on the interlayer of described heat accumulation type radiant tube；Preferably, described catalyst ejector part includes catalyst ejection passage and the nozzle being arranged on described catalyst ejection passage, and described nozzle is provided with adjustment valve.
7. the system according to any one of claim 1-3, it is characterised in that described loading hopper is connected with described charging aperture by described feeder.
8. the system according to any one of claim 1-3, it is characterised in that also include semicoke outlet, the outlet of described semicoke is arranged on the bottom of described pyrolysis chamber, and the outlet of described semicoke is connected with described semicoke conveyer device.
9. the method that the system utilized according to any one of claim 1-8 carries out junked tire pyrolysis and catalytic pyrolysis, it is characterised in that comprise the following steps:
A. waste tyre particle is joined in described reactor by charging aperture, in the pyrolysis chamber of described reactor, complete pyrolytic process；
B. the oil gas that pyrolysis produces, by the communication member arranged on the heat insulation brick wall of described reactor, enters into the cracking room of described reactor；
C. the oil gas that described pyrolysis produces enters in described cracking room, and catalyst is sprayed in described cracking room by catalyst-adding device, and described pyrolysis oil gas completes catalytic pyrolysis process in described cracking room, produces cracking gas；
D. described cracking gas enters in spray column by cracking gas outlet, and described cracking gas is carried out purified treatment；
E. purified clean cracking gas enters in fuel cartridge through combustion gas air-introduced machine, stores.
10. method according to claim 9, it is characterized in that, in described step a, described waste tyre particle joins described reactor from the described charging aperture on described reactor top, and broken up by the heat accumulation type radiant tube in described reactor, pyrolysis char exports from the semicoke of described reactor bottom and discharges；In described step a, described waste tyre particle is heated to 500-600 DEG C by the described heat accumulation type radiant tube in described reactor pyrolysis chamber, and in described step b, described pyrolysis oil gas is heated to 600-900 DEG C by the described heat accumulation type radiant tube in described reactor cracking room；In described step c, described catalyst is sprayed in described cracking room equably by catalyst ejector part；Preferably, the granularity of described waste tyre particle is below 20mm.
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| 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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| US20080029434A1 (en) * | 2000-01-28 | 2008-02-07 | John Brewer | Multi zone cracking furnace |
| CN201694994U (en) * | 2009-06-23 | 2011-01-05 | 北京联合创业环保工程有限公司 | Clock-type biomass thermal cracking integrated equipment |
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