CN106635114A - Device and method for realizing catalytic cracking oil and gas cogeneration in fluidization state by waste rubber powder - Google Patents
Device and method for realizing catalytic cracking oil and gas cogeneration in fluidization state by waste rubber powder Download PDFInfo
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- CN106635114A CN106635114A CN201611108350.5A CN201611108350A CN106635114A CN 106635114 A CN106635114 A CN 106635114A CN 201611108350 A CN201611108350 A CN 201611108350A CN 106635114 A CN106635114 A CN 106635114A
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- cracking
- rubber powder
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- sleeve
- catalyst
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- 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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/07—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of solid raw materials consisting of synthetic polymeric materials, e.g. tyres
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
Abstract
The invention provides a device and a method for realizing catalytic cracking oil and gas cogeneration in a fluidization state by waste rubber powder. Rubber powder and a catalyst are sufficiently stirred; when a bed body is heated to required temperature by a heating system, a charging valve is opened, and catalytic cracking of the rubber powder is realized. Current reaction devices for cracking are rotary kilns and general resistance type heating furnaces, so that the cracking reaction efficiency is low and the reaction is incomplete. A fluidization technique provided by the invention references the fluidized-bed reaction principle; fluidizing gas enters from the lower part, a cracking material is enabled to be in the fluidization state, and the cracking reaction speed is incased, so that the cracking reaction is more sufficient. The other innovation of the device is that an intermediate air pressure uniform distribution plate can be detached for replacement; one cracking sleeve can be suitable for different cracking materials. The device can achieve the aim of cracking at constant temperature, i.e., the materials and the catalyst are added into the device for cracking after the cracking sleeve is heated to designated temperature, so that the quality of an obtained cracking oil product is improved.
Description
Technical field
The invention discloses a kind of waste rubber powder realizes the device and method of catalytic pyrolysis oil gas coproduction under fluidized state.
Background technology
The development of transportation, gives people life and brings great convenience, and at the same time also brings waste old
The continuous growth of quantity.The presence of junked tire not only occupies a large amount of soils, and seriously threatens environment.Waste old
The place that accumulation is grown there is provided mosquito, and the fire for causing also happens occasionally because waste old catches fire, while rubber combustion
During can produce substantial amounts of carcinogen, polycyclic aromatic hydrocarbon, cause 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, such as vacuum cracking, hydrocracking, autothermal cracking, be dried cracking, low temperature pyrolyzer, superheated steam gas crack, coal copyrolysis and
Plasma pyrolysis etc.；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 regenerated resources such as fuel gas, fuel oil, carbon black and steel wires, these regenerated resources may be used to fuel or chemical industry former material
Material.Junked tire treating capacity is big, applied widely, product is wide in variety, waste volume reduction amount is big.Not only there is obvious Environmental Effect
Benefit, and economic benefit is also very considerable.
For the reactor types that thermal cracking is adopted also have a lot, 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 difference.But current cracking sets
Standby lysis efficiency is very low, wastes many resources and the energy.
The content of the invention
For the deficiencies in the prior art, the present invention realizes oil gas using the catalytic pyrolysis that the method for fluidisation carries out junked tire
The device and method of coproduction.
The technical solution used in 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, one is provided with the top of described air preheat cylinder and is sleeved on its internal cracking sleeve, and described cracks the upper of sleeve
Side is provided with feed bin and catalyst storehouse, and described feed bin and the bottom in catalyst storehouse is connected with a teeter chamber, described stirring
The bottom of room connects with cracking sleeve inner, and is additionally provided with above described cracking sleeve and its internal smoke exhaust pipe for connecting；
The bottom of described cracking sleeve is an even gas distribution plate, and described even gas distribution plate makes gas be evenly distributed on cracking sleeve
Cross section on, the bottom of described air preheat cylinder is provided with a gas access, and described gas access is connected with source nitrogen.
Further, described air preheat cylinder is externally provided with a resistance-type heating furnace and it is heated.
Further, an inlet valve is provided with below described teeter chamber.
Further, the pipeline that described source nitrogen is connected with gas access is provided with a preheating device.
Further, described even gas distribution plate is the bottom for being detachably arranged in cracking sleeve.
Further, a nitrogen gas control valve is additionally provided with the pipeline that described source nitrogen is connected with gas access.
Even gas distribution plate is set in cracking sleeve, makes cracking sleeve that isobaric air compartment is formed 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, material is uniformly fluidized.Top arranges charging system
System realizes that constant temperature is cracked；Bottom is connected with high-temperature gas, by realizing high efficient heat exchanging and efficient mass transfer with tire glue powder directly contact,
Make rubber powder carry out catalytic cracking reaction, improve value-added product --- the yield of cracked oil.
The method for carrying out specific sulfuration cracking using said 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 is also carried out
Catalyst storehouse is entered after corresponding process；Then catalyst together enters stir storehouse 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 air pressure
On uniform board, high temperature nitrogen preheats cylinder and reaches after preset temperature by gas, and cracking set is caused in the presence of air pressure uniform board
The pressure chambers such as cylinder formation, by the flowing driven wheel tire rubber powder of high temperature nitrogen and the fluidisation of catalyst mixture material, realize efficient
Cracking.
Further, suitable fluidising air velocity is coordinated to reach with quantity by changing the form of the cloth hole on air pressure uniform board
To cracking different meshes, the effect of variety classes material.
Further, crack below sleeve and be passed through the inert atmosphere that nitrogen has been completely secured thermal cracking so that the cracking of generation
Product is more high-quality.
Beneficial effects of the present invention are as follows：
The present invention rubber powder is sufficiently stirred for catalyst, hot systems to be added will cracking sleeve be heated to it is temperature required,
Charging valve is opened, the catalytic pyrolysis of rubber powder is realized.At present cracking reaction unit used is all rotary kiln and general resistance-type
Heating furnace, cracking reaction efficiency is low, and reaction is incomplete；The fluidization technique of the present invention uses for reference fluidized-bed reaction principle, enters from bottom
Enter fluidizing gas, by cracking material in fluidisation state, accelerate cracking reaction speed, make cracking reaction more abundant.
Additionally, the air pressure uniform board of centre can go for different lysates with dismounting and change, a cracking sleeve
Material.This device can reach the purpose of constant temperature cracking, will crack sleeve and be heated to add material with catalyst after assigned temperature
Enter and cracked in device.The quality and quality of the cracking oil product for so obtaining all increases.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
These accompanying drawings obtain other accompanying 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 embodiment
Below in conjunction with the accompanying drawings the present invention is described in detail；
Waste rubber powder disclosed by the invention realizes the device of catalytic pyrolysis oil gas coproduction under fluidized state, this covering device point
Constitute for external heat system, internal fluidisation system, the charging system on top, internal fluidization system is divided into the cracking on top again
Sleeve arrangement and the air preheater of bottom, the cracking sleeve arrangement on top is seamless using bolt with the gas of bottom preheating cylinder
Connection, the cracking sleeve arrangement bottom on top has a demountable air pressure uniform board, can change the gas of multi-form
Uniform board is pressed to realize different fluidized states.When preparation cracking rubber powder carries out oil gas co-production technology, using outside
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 air pressure uniform board being distributed to naturally in fluidization system, while opening the nitrogen gas control valve of bottom so that nitrogen passes through gas
Body preheating cylinder is dispelled with the rubber powder granule that air pressure uniform board will be cracked and carries out fluidisation cracking, and the cracking gas after cracking is by row
Smoke pipe enters condenser system, carries out following condensation dedusting and collects work.Solid breeze produced by cracking falls equal in air pressure
On fabric swatch, test can be obtained by dismounting cracking sleeve after completing on air pressure uniform board.The feed system on top can be with
Carry out the stirring of rubber powder and catalyst under the drive of motor, after rubber powder stirs with catalyst, then open charging valve and enter
Row charging, by the effect of catalyst the more excellent cracked oil of quality, the cracking gas higher with heat energy are obtained.
Specific structure is as follows：
As shown in figure 1, including an air preheat cylinder 7, being provided with one at the top of described air preheat cylinder 7 and being sleeved on
Its internal cracking sleeve 5, the top of described cracking sleeve 5 is provided with feed bin 1 and catalyst storehouse 2, described feed bin 1 and catalysis
The bottom in agent storehouse 2 is connected with a teeter chamber 3, and the bottom of described teeter chamber 3 connects with the inside of cracking sleeve 5, and described
The top of cracking sleeve 5 be additionally provided with and its internal smoke exhaust pipe 4 for connecting；The bottom of described cracking sleeve 5 is a gas
Uniform board 8, the bottom of described air preheat cylinder 7 is provided with a gas access 9, and described gas access 9 is connected with source nitrogen.
Nitrogen is by forming in even gas distribution plate certain distance in cracking sleeve isobaric wind after even gas distribution plate
Room, gas is uniform, and material also just can be fluidized uniformly so that more completely, the cracking oil quality of generation is more for cracking
It is high.
Feed bin 1, catalyst storehouse 2 and teeter chamber 3 in the device is installed in the top of cracking sleeve 5 and air preheat cylinder 7
Portion, is specifically shown in accompanying drawing 1.
Further, described air preheat cylinder is externally provided with a resistance-type heating furnace 6 and it is heated.
Further, an inlet valve is provided with below described teeter chamber.
Further, the pipeline that described source nitrogen is connected with gas access is provided with a preheating device.
Further, described even gas distribution plate is the bottom for being detachably arranged in cracking sleeve.
Further, described feed bin 1 is used to contain tire glue powder, and catalyst storehouse 2 is used for holding catalyst, teeter chamber master
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
Even gas distribution plate 8 is set in the bottom of cracking sleeve 5, makes cracking sleeve that isobaric air compartment is formed in certain distance,
Air is evenly distributed on each cross section of cracking sleeve, and provides enough dynamic heads, material is uniformly fluidized.Top
Feed system is set and realizes that constant temperature is cracked；Bottom is connected with high-temperature gas, by realizing high efficient heat exchanging with tire glue powder directly contact
And efficient mass transfer, make rubber powder carry out catalytic cracking reaction, improve 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 got, the speed of nitrogen is then controlled by the gas flow meter on nitrogen cylinder, make up to meter
Critical fludization velocity obtained by calculating.
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 one-level, two grades, three-level are crushed, into charging
System, catalyst is also carried out after corresponding process with rubber powder together into the agitating device of charging system, carries out uniform stirring；
(2) after cracking sleeve is heated to preset temperature, inlet valve is opened so that it is equal that material is uniformly scattered in air pressure
On fabric swatch, high temperature nitrogen preheats cylinder and reaches after preset temperature by gas, and cracking sleeve is caused in the presence of air pressure uniform board
The pressure chambers such as formation, by the flowing driven wheel tire rubber powder of high temperature nitrogen and the fluidisation of catalyst mixture material, realize efficiently splitting
Solution.
Further, suitable fluidising air velocity is coordinated to reach with quantity by changing the form of the cloth hole on air pressure uniform board
To cracking different meshes, the effect of variety classes material.
Further, crack below sleeve and be passed through the inert atmosphere that nitrogen has been completely secured thermal cracking 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 below 3-5mm, and the tire glue powder after crushing adds the charging system on top
System, according to catalyst content 10%, 15%, 25%, 35%, 45%, 50% catalyst addition system is added to, and then carries out glue
The stirring of powder and catalyst, in cracking sleeve, then heating system heats are spilt into the material for stirring to after 550 DEG C
Nitrogen is passed through, is that material enters fluidized state, carry out catalytic cracking reaction, generate carbon black, cracked oil and not condensible gas.It is different
Catalyst content obtained by different pyrolysis product distribution, it is 35% left in catalyst n aOH contents that test temperature is 550 DEG C
Distribution situation preferably following Fig. 3 of pyrolysis product oil when right.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to present invention protection model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (8)
1. a kind of waste rubber powder realizes the device of catalytic pyrolysis oil gas coproduction in fluidized state, it is characterised in that including a sky
Gas preheats cylinder, one is provided with the top of described air preheat cylinder and is sleeved on its internal cracking sleeve, described cracking set
The top of cylinder is provided with feed bin and catalyst storehouse, and described feed bin and the bottom in catalyst storehouse is connected with a teeter chamber, described
The bottom of teeter chamber connect with cracking sleeve inner, and row for being additionally provided with and connecting inside it above described cracking sleeve
Smoke pipe；The bottom of described cracking sleeve is an even gas distribution plate, and described even gas distribution plate is evenly distributed on gas to split
On the cross section of solution sleeve, the bottom of described air preheat cylinder is provided with a gas access, described gas access and nitrogen
Source is connected.
2. waste rubber powder as claimed in claim 1 realizes the device of catalytic pyrolysis oil gas coproduction in fluidized state, and its feature exists
In described air preheat cylinder is externally provided with a resistance-type heating furnace and it is heated.
3. waste rubber powder as claimed in claim 1 realizes the device of catalytic pyrolysis oil gas coproduction in fluidized state, and its feature exists
In being provided with an inlet valve below described teeter chamber.
4. waste rubber powder as claimed in claim 1 realizes the device of catalytic pyrolysis oil gas coproduction in fluidized state, and its feature exists
In the pipeline that described source nitrogen is connected with gas access is provided with a preheating device.
5. waste rubber powder as claimed in claim 1 realizes the device of catalytic pyrolysis oil gas coproduction in fluidized state, and its feature exists
In described even gas distribution plate is the bottom for being detachably arranged in cracking sleeve.
6. waste rubber powder as claimed in claim 1 realizes the device of catalytic pyrolysis oil gas coproduction in fluidized state, and its feature exists
In being additionally provided with a nitrogen gas control valve on the pipeline that described source nitrogen is connected with gas access.
7. the method for carrying out catalytic pyrolysis using the catalytic pyrolysis oil gas combined production device described in claim 3, it is characterised in that
（1）Tire glue powder is divided into the rubber powder granule of different meshes after crushing and enters feeding chamber；Catalyst is also carried out accordingly
Process after enter catalyst storehouse；Then catalyst together enters stir storehouse with tire glue powder, carries out uniform stirring；
（2）After cracking sleeve is heated to preset temperature, inlet valve is opened so that it is uniform that material is uniformly scattered in air pressure
On plate, high temperature nitrogen preheats cylinder and reaches after preset temperature by gas, and cracking sleeve shaped is caused in the presence of air pressure uniform board
Into etc. pressure chamber, by the fluidisation of flowing driven wheel tire rubber powder and the catalyst mixture material of high temperature nitrogen, realize efficient cracking.
8. method as claimed in claim 7, it is characterised in that by the form and quantity that arrange the cloth hole on air pressure uniform board
Suitable fluidising air velocity is coordinated to reach cracking different meshes, the effect of variety classes material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN106635114A true CN106635114A (en) | 2017-05-10 |
| CN106635114B CN106635114B (en) | 2018-09-18 |
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| CN201611108350.5A Expired - Fee Related 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US11999920B2 (en) | 2020-09-14 | 2024-06-04 | Ecolab Usa Inc. | Cold flow additives for plastic-derived synthetic feedstock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030019789A1 (en) * | 2000-03-20 | 2003-01-30 | Ho-Jun Kwak | Method and system for continuously preparing gasoline, kerosene and diesel oil from waste plastics |
| 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 |
-
2016
- 2016-12-06 CN CN201611108350.5A patent/CN106635114B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030019789A1 (en) * | 2000-03-20 | 2003-01-30 | Ho-Jun Kwak | Method and system for continuously preparing gasoline, kerosene and diesel oil from waste plastics |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US11999920B2 (en) | 2020-09-14 | 2024-06-04 | Ecolab Usa Inc. | Cold flow additives for plastic-derived synthetic feedstock |
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| Publication number | Publication date |
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| CN106635114B (en) | 2018-09-18 |
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Granted publication date: 20180918 Termination date: 20191206 |