CN106635114B - Waste rubber powder realizes the device and method of catalytic pyrolysis oil gas coproduction in fluidized state - Google Patents
Waste rubber powder realizes the device and method of catalytic pyrolysis oil gas coproduction in fluidized state Download PDFInfo
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- CN106635114B CN106635114B CN201611108350.5A CN201611108350A CN106635114B CN 106635114 B CN106635114 B CN 106635114B CN 201611108350 A CN201611108350 A CN 201611108350A CN 106635114 B CN106635114 B CN 106635114B
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- cracking
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- rubber powder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
Abstract
The present invention provides a kind of waste rubber powders in the device and method of fluidized state realization catalytic pyrolysis oil gas coproduction, and rubber powder and catalyst are sufficiently stirred, and bed body is heated to required temperature by hot systems to be added, is opened charging valve, is realized the catalytic pyrolysis of rubber powder.Cracking reaction unit used is all rotary kiln and general resistance-type heating furnace at present, and cracking reaction efficiency is low, and reaction is incomplete.The fluidization technique of the present invention uses for reference fluidized-bed reaction principle, enters fluidizing gas from lower part, and cracking material is in fluidisation state, accelerates cracking reaction rate, keeps cracking reaction more abundant.Another innovation of the present apparatus is that intermediate air pressure uniform board can be adapted for different cracking materials with dismounting and change, a cracking sleeve.The present apparatus can achieve the purpose that constant temperature cracks, i.e., cracking sleeve is heated to be added to material in device with catalyst after assigned temperature and is cracked.The quality and quality of the cracking oil product obtained in this way all increase.
Description
Technical field
The invention discloses a kind of waste rubber powders to realize the device and method of catalytic pyrolysis oil gas coproduction under fluidized state.
Background technology
The development of transportation brings great convenience to people's life, at the same time also brings waste old
The continuous growth of quantity.The presence of waste tire not only occupies a large amount of soils, but also seriously threatens environment.Waste old
Accumulation provides the place of mosquito growth, and fire caused by catching fire because of waste old also happens occasionally, while rubber combustion
It will produce a large amount of carcinogen, polycyclic aromatic hydrocarbon in the process, lead to serious environmental pollution.
In recent years, research of the various countries in terms of scrap rubber pyrolysis has made some progress, and the pyrolysis of scrap rubber has many sides
Method, as vacuum cracking, hydrocracking, autothermal cracking, dry cracking, low temperature pyrolyzer, superheated steam gas crack, coal copyrolysis and
Plasma pyrolysis etc.；It can be divided into external-heat and internal heat type again according to mode of heating；Carrying out thermal cracking to waste rubber powder can obtain
To fuel gas, the regenerated resources such as fuel oil, carbon black and steel wire, these regenerated resources may be used to fuel or chemical industry former material
Material.Waste tire treating capacity is big, applied widely, product is wide in variety, waste volume reduction amount is big.Not only there is apparent Environmental Effect
Benefit, and economic benefit is also very considerable.
The reactor types used for thermal cracking also have very much, such as fixed bed, rotary kiln, moving bed, melt bath and stream
Change bed etc..The cleavage method of waste old is different, and corresponding cracking technology and equipment have many differences.However current cracking is set
Standby lysis efficiency is very low, wastes many resources and the energy.
Invention content
In view of the deficiencies of the prior art, the present invention carries out the catalytic pyrolysis realization oil gas of waste tire using the method for fluidisation
The device and method of coproduction.
The technical solution adopted by the present invention is：
A kind of waste rubber powder realizes the device of catalytic pyrolysis oil gas coproduction, including an air preheat under fluidized state
Cylinder, sets the cracking sleeve inside it there are one suit at the top of the air preheat cylinder, and described cracks the upper of sleeve
Side is equipped with feed bin and catalyst storehouse, and the bottom in the feed bin and catalyst storehouse is connected with a teeter chamber, the stirring
The bottom of room is connected to cracking sleeve inner, and is additionally provided with above the cracking sleeve and its internal smoke exhaust pipe being connected to；
The bottom of the cracking sleeve is an even gas distribution plate, and the even gas distribution plate makes gas be evenly distributed on cracking sleeve
Cross section on, the bottom of the air preheat cylinder sets that there are one gas accesses, and the gas access is connected with source nitrogen.
Further, the air preheat cylinder peripheral hardware heats it there are one resistance-type heating furnace.
Further, inlet valve there are one being set below the teeter chamber.Further, the source nitrogen and gas
Preheating device there are one being set on the pipeline of entrance connection.
Further, the even gas distribution plate is the bottom for being detachably arranged in cracking sleeve.
Further, a nitrogen gas control valve is additionally provided on the pipeline that the source nitrogen is connect with gas access.
Even gas distribution plate is set in cracking sleeve, cracking sleeve is made to form isobaric air compartment in certain distance, air is equal
It is even to be distributed on the cross section of cracking sleeve, and enough dynamic heads are provided, so that material is uniformly fluidized.Top setting charging system
System realizes constant temperature cracking；Lower part is connected with high-temperature gas, and high efficient heat exchanging and efficient mass transfer are realized by being in direct contact with tire glue powder,
So that rubber powder is carried out catalytic cracking reaction, improves value-added product --- the yield of cracked oil.
The method that specific vulcanization cracking is carried out using above-mentioned apparatus is as follows：
(1) rubber powder granule for being divided into different meshes after the crushing of tire glue powder process enters feeding chamber；Catalyst also carries out
Enter catalyst storehouse after corresponding processing；Then catalyst enters mixing chamber together with tire glue powder, carries out uniform stirring；
(2) after cracking sleeve is heated to preset temperature, inlet valve is opened so that material is uniformly scattered in gas
On uniform board, after high temperature nitrogen reaches preset temperature by air preheat cylinder, so that cracking set under the action of even gas distribution plate
The pressure chambers such as cylinder formation, the fluidisation of tire glue powder and catalyst mixture material is moved by the fluxion strap of high temperature nitrogen, is realized efficient
Cracking.
Further, coordinate suitable fluidising air velocity that can reach with quantity by changing the form of the cloth hole on even gas distribution plate
To the effect of cracking different meshes, variety classes material.
Further, it cracks below sleeve and is passed through the inert atmosphere that thermal cracking has been completely secured in nitrogen so that the cracking of generation
Product is more high-quality.
Beneficial effects of the present invention are as follows：
Rubber powder and catalyst are sufficiently stirred by the present invention, and hot systems to be added are heated to required temperature by sleeve is cracked,
Charging valve is opened, realizes the catalytic pyrolysis of rubber powder.Cracking reaction unit used is all rotary kiln and general resistance-type at present
Heating furnace, cracking reaction efficiency is low, and reaction is incomplete；The present invention fluidization technique use for reference fluidized-bed reaction principle, from lower part into
Enter fluidizing gas, cracking material is in fluidisation state, accelerates cracking reaction rate, keeps cracking reaction more abundant.
In addition, intermediate even gas distribution plate can be adapted for different lysates with dismounting and change, a cracking sleeve
Material.The present apparatus can achieve the purpose that constant temperature cracks, i.e., be heated to add material and catalyst after assigned temperature by cracking sleeve
Enter and is cracked into device.The quality and quality of the cracking oil product obtained in this way all increase.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.Fig. 1 is that waste rubber powder realizes catalytic pyrolysis oil gas combined production device figure under fluidized state；
Fig. 2 is that waste rubber powder realizes catalytic pyrolysis oil gas joint production process flow chart under fluidized state；
Fig. 3 test temperatures are the distribution feelings of 550 DEG C of pyrolysis product oil when catalyst n aOH contents are 35% or so
Condition；
In figure：1, feed bin 2, catalyst storehouse 3, teeter chamber 4, smoke exhaust pipe 5, cracking sleeve 6, resistance-type heating furnace 7,
Air preheat cylinder 8, even gas distribution plate 9, gas access.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings；
Waste rubber powder disclosed by the invention realizes the device of catalytic pyrolysis oil gas coproduction, this covering device point under fluidized state
For external heating system, internal fluidisation system, the charging system on top composition, internal fluidization system is divided into the cracking for top
The air preheater of sleeve arrangement and lower part, the cracking sleeve arrangement on top and the air preheat cylinder of lower part are seamless using bolt
Connection, there are one demountable even gas distribution plates for the cracking sleeve arrangement bottom on top, can replace various forms of gas
Body uniform board is to realize different fluidized states.When preparing cracking rubber powder progress oil gas co-production technology, outside is utilized
Internal fluidization system is heated to assigned temperature by heating system, opens the charging valve on top so that effect of the material in gravity
On the lower even gas distribution plate being distributed to naturally in fluidization system, the nitrogen gas control valve of lower part is opened simultaneously so that nitrogen passes through sky
Gas preheating cylinder is dispelled with the rubber powder granule that even gas distribution plate will crack carries out fluidisation cracking, and the cracking gas after cracking passes through row
Smoke pipe enters condenser system, carries out following condensation dedusting and collects work.Solid breeze caused by cracking is fallen equal in gas
On fabric swatch, experiment can crack sleeve by dismounting after completing and be obtained on even gas distribution plate.The feed system on top can be with
Carry out the stirring of rubber powder and catalyst under the drive of motor, rubber powder and catalyst stir evenly and then open charging valve into
Row charging, obtains quality more preferably cracked oil, with the higher cracking gas of thermal energy by the effect of catalyst.
Specific structure is as follows：
As shown in Figure 1, including an air preheat cylinder 7, set at the top of the air preheat cylinder 7 there are one being sleeved on
The top of its internal cracking sleeve 5, the cracking sleeve 5 is equipped with feed bin 1 and catalyst storehouse 2, the feed bin 1 and catalysis
The bottom in agent storehouse 2 is connected with a teeter chamber 3, and the bottom of the teeter chamber 3 is connected to 5 inside of cracking sleeve, and described
The top of cracking sleeve 5 be additionally provided with and its internal smoke exhaust pipe 4 being connected to；The bottom of the cracking sleeve 5 is a gas
Uniform board 8, the bottom of the air preheat cylinder 7 set that there are one gas accesses 9, and the gas access 9 is connected with source nitrogen.
Nitrogen in cracking sleeve in even gas distribution plate certain distance by forming isobaric wind after even gas distribution plate
Room, gas is uniform, and material also can be fluidized uniformly so that cracking is more complete, and the cracking oil quality of generation is more
It is high.
Feed bin 1, catalyst storehouse 2 and teeter chamber 3 in the device are installed in the top of cracking sleeve 5 and air preheat cylinder 7
Portion is specifically shown in attached drawing 1.Further, the air preheat cylinder peripheral hardware heats it there are one resistance-type heating furnace 6.
Further, inlet valve there are one being set below the teeter chamber.
Further, preheating device there are one being set on the pipeline that the source nitrogen is connect with gas access.
Further, the even gas distribution plate is the bottom for being detachably arranged in cracking sleeve.
Further, the feed bin 1 is used for holding catalyst, teeter chamber master for containing tire glue powder, catalyst storehouse 2
If for tire glue powder and catalyst to be stirred.
Further, the cracking gas after cracking enters condenser system by smoke exhaust pipe, carry out following condensation dedusting with
Collect work
In the bottom setting even gas distribution plate 8 of cracking sleeve 5, cracking sleeve is made to form isobaric air compartment in certain distance,
Air is evenly distributed on each cross section of cracking sleeve, and provides enough dynamic heads, and material is made uniformly to fluidize.Top
Feed system is set and realizes constant temperature cracking；Lower part is connected with high-temperature gas, by being in direct contact realization high efficient heat exchanging with tire glue powder
And efficient mass transfer, so that rubber powder is carried out catalytic cracking reaction, improves value-added product --- the yield of cracked oil.
Fluidising air velocity is the quality by material, and the size of particle and the various attribute coefficients of material are calculated by formula
What the critical fludization velocity come was got, the speed of nitrogen is then controlled by the gas flow meter on nitrogen cylinder, makes up to meter
Calculate obtained critical fludization velocity.
Specific cleavage method is as shown in Fig. 2, as follows：
(1) tire glue powder is divided into the rubber powder granule of different meshes after being crushed by level-one, two level, three-level, into charging
System, catalyst enter the agitating device of charging system together with rubber powder, carry out uniform stirring after also being handled accordingly；
(2) after cracking sleeve is heated to preset temperature, inlet valve is opened so that it is equal that material is uniformly scattered in gas
On fabric swatch, after high temperature nitrogen reaches preset temperature by air preheat cylinder, so that cracking sleeve under the action of even gas distribution plate
The pressure chambers such as formation, the fluidisation of tire glue powder and catalyst mixture material is moved by the fluxion strap of high temperature nitrogen, and realization is efficiently split
Solution.
Further, coordinate suitable fluidising air velocity that can reach with quantity by changing the form of the cloth hole on even gas distribution plate
To the effect of cracking different meshes, variety classes material.
Further, it cracks below sleeve and is passed through the inert atmosphere that thermal cracking has been completely secured in nitrogen so that the cracking of generation
Product is more high-quality.
A kind of waste rubber powder described in the present embodiment realizes that catalytic pyrolysis oil gas co-production technology is as follows under fluidized state：
Whole damaged tire is chosen as raw material, broken pre- place is carried out to tyre material by high-efficiency low energy consumption crushing system
Reason, broken rear tyre rubber powder size can be controlled in 3-5mm hereinafter, the charging system on top is added in the tire glue powder after will be broken
System, is added to catalyst addition system according to catalyst content 10%, 15%, 25%, 35%, 45%, 50%, then carries out glue
The material stirred evenly is spilt into heating system heats in cracking sleeve to after 550 DEG C, then by the stirring of powder and catalyst
It is passed through nitrogen, is that material enters fluidized state, carries out catalytic cracking reaction, generates carbon black, cracked oil and not condensible gas.It is different
Catalyst content obtained by different pyrolysis product distribution, it in catalyst n aOH contents is 35% left side that test temperature, which is 550 DEG C,
The distribution situation of pyrolysis product oil preferably following Fig. 3 when right.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (5)
1. a kind of waste rubber powder realizes the device of catalytic pyrolysis oil gas coproduction in fluidized state, which is characterized in that including a sky
Gas preheats cylinder, and cracking sleeve inside it, the cracking set there are one suit are set at the top of the air preheat cylinder
The top of cylinder is equipped with feed bin and catalyst storehouse, and the bottom in the feed bin and catalyst storehouse is connected with a teeter chamber, described
The bottom of teeter chamber be connected to cracking sleeve inner, and be additionally provided with above the cracking sleeve and row for being connected to inside it
Smoke pipe；The bottom of the described cracking sleeve is an even gas distribution plate, and the even gas distribution plate makes gas be evenly distributed on to split
On the cross section for solving sleeve, the bottom of the air preheat cylinder sets that there are one gas access, the gas access and nitrogen
Source is connected；
The air preheat cylinder peripheral hardware heats it there are one resistance-type heating furnace；
Preheating device there are one being set on the pipeline that the source nitrogen is connect with gas access；
The even gas distribution plate is the bottom for being detachably arranged in cracking sleeve.
2. waste rubber powder as described in claim 1 realizes that the device of catalytic pyrolysis oil gas coproduction, feature exist in fluidized state
In being set below the teeter chamber there are one inlet valve.
3. waste rubber powder as described in claim 1 realizes that the device of catalytic pyrolysis oil gas coproduction, feature exist in fluidized state
In being additionally provided with a nitrogen gas control valve on the pipeline that the source nitrogen is connect with gas access.
4. the method for carrying out catalytic pyrolysis using the catalytic pyrolysis oil gas combined production device described in claim 2, which is characterized in that
(1) rubber powder granule for being divided into different meshes after the crushing of tire glue powder process enters feeding chamber；Catalyst also carries out accordingly
Processing after enter catalyst storehouse；Then catalyst enters mixing chamber together with tire glue powder, carries out uniform stirring；
(2) after cracking sleeve is heated to preset temperature, inlet valve is opened so that material is uniformly scattered in even gas distribution
On plate, after high temperature nitrogen reaches preset temperature by air preheat cylinder, so that cracking sleeve shaped under the action of even gas distribution plate
At etc. pressure chambers, the fluidisation of tire glue powder and catalyst mixture material is moved by the fluxion strap of high temperature nitrogen, realizes and efficiently cracks.
5. method as claimed in claim 4, which is characterized in that by form and quantity that the cloth hole on even gas distribution plate is arranged
Coordinate suitable fluidising air velocity that can have the function that crack different meshes, variety classes material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611108350.5A CN106635114B (en) | 2016-12-06 | 2016-12-06 | Waste rubber powder realizes the device and method of catalytic pyrolysis oil gas coproduction in fluidized state |
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| CN201611108350.5A CN106635114B (en) | 2016-12-06 | 2016-12-06 | Waste rubber powder realizes the device and method of catalytic pyrolysis oil gas coproduction in fluidized state |
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| CN106635114B true CN106635114B (en) | 2018-09-18 |
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| CN110358562A (en) * | 2018-04-10 | 2019-10-22 | 杭州润泰新能源设备有限公司 | A kind of reactor for waste plastics conversion |
| CN111171854A (en) * | 2018-11-09 | 2020-05-19 | 珠海格力电器股份有限公司 | Continuous infrared cracking equipment and process method for tire materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408901A (en) * | 2011-10-12 | 2012-04-11 | 厦门大学 | Method for quick thermal cracking of biomass and device thereof |
| CN102786986A (en) * | 2012-08-27 | 2012-11-21 | 青岛科技大学 | Refining technology of microalgae pyrolysis oil |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100322663B1 (en) * | 2000-03-20 | 2002-02-07 | 곽호준 | Continuous Preparing Method for Gasoline, Kerosene and Diesel Using Waste Plastics and System thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408901A (en) * | 2011-10-12 | 2012-04-11 | 厦门大学 | Method for quick thermal cracking of biomass and device thereof |
| CN102786986A (en) * | 2012-08-27 | 2012-11-21 | 青岛科技大学 | Refining technology of microalgae pyrolysis oil |
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