CN101074385B - Waste-plastic continuous cracking process and cracker - Google Patents
Waste-plastic continuous cracking process and cracker Download PDFInfo
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- CN101074385B CN101074385B CN2007101261117A CN200710126111A CN101074385B CN 101074385 B CN101074385 B CN 101074385B CN 2007101261117 A CN2007101261117 A CN 2007101261117A CN 200710126111 A CN200710126111 A CN 200710126111A CN 101074385 B CN101074385 B CN 101074385B
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Abstract
A process and apparatus for cracking plastic are disclosed. The process is carried out by mixing raw material with solid fluid heat carrier in cracker, moving co-currently, heating, while cracking continuously to obtain final product. Spiral impelling mechanism is arranged in casing, feed inlet and solid heat carrier inlet is arranged at front of casing; solid heat carrier and solid product outlet are arranged at rear of casing. It's cheap, automatic, efficient and convenient. It has no environmental pollution.
Description
Technical field
The present invention relates to a kind of cracking waste plastics Processes and apparatus, particularly a kind of plastic waste continuous cracking Processes and apparatus.
Background technology
Plastics belong to the hydrocarbon polymkeric substance of polymer, itself are the high molecular polymers that the hydro carbons in the petroleum products constitutes through polyreaction, because it is difficult at the occurring in nature natural degradation environment caused great pollution.Can open by the high molecular polymer macromolecular chain that the cracked method will constitute plastics now; make it be reduced to the compound of small molecules chain; because micromolecular compound is generally the hydrocarbon polymer that meets the fuel oil component; generally can obtain gasoline, diesel oil and combustion gas through fractionation with refining; so just solved plastic waste and had very high economic worth and environmental benefit simultaneously for the pollution of environment, also serious day by day energy dilemma provides new approach in order to solve now.
But general employing of existing cleavage method adopts coal or electricity as thermal source disposable the inserting of plastic waste in the reactor, heating makes its cracking under the catalysis of catalyzer, splitting gas is carried out condensate fractionation obtain rough fuel oil, such method is treatment of waste plastics in batches, can't reach the serialization production of industrial requirement, processing speed is slow, the gained oil quality is very low; Because what adopt is direct-fired method, cause the generation of problems such as reactor is inflammable and explosive, simultaneously since reactor directly be heated and can increase production cost the work-ing life that reactor cause excessive loss to reduce whole plant; Owing to can't carry out serialization production and can't handle the waste gas waste residue that produces in the production process timely and effectively, cause pollution to environment.Though but the plastic waste oilization device of multiple continuous industry production is provided in the prior art, can solve to a certain extent and reach the quantity-produced purpose, but its plastic waste in cracking process is heated inhomogeneous, cause plastic cracking thoroughly not influence final oil product yield, simultaneously also can cause partly plastic to be heated too fast and directly burn and form cinder and also can influence normally carrying out of scission reaction, increase simultaneously in the production process handle for deslagging and the later stage to the cost of a large amount of waste residues processing.
Summary of the invention
For solving the problems referred to above that prior art exists, the invention provides following technical scheme: it heats the realization continuous cracking by mix the also homodromous solid-state thermophore stream that carries heat with raw material in cracker to raw material.
At first in cracker owing to adopted the solid-state thermophore stream that carries heat to carry out direct heating, at itself and raw material in the same way in the moving process, raw material mixes with solid-state thermophore and sticks to its surface, raw material and solid-state thermophore big area are directly contacted also is heated fast, thereby solved the plastic waste that causes because of plastics heat-conducting effect difference inhomogeneous, the halfway difficult problem of cracking of being heated, can also improve speed of response and reach quick cracking.The solid-state thermophore of finishing after the cracking also can be taken the solids that generates out of cracking apparatus, has solved in cracker solid residue simultaneously and has lumpd into cinder and be unfavorable for the industrial continuous production problem.In the moving process of solid-state thermophore, can also be with the solid residue refinement that produces after the cracking, to make things convenient for the processing in later stage.
In said process, can directly the solid plastics raw material be sent into cracking process, but in order to reach better effect, generally raw material preheating is entered cracking process to molten, so not only the gas that retains between plastic waste can be discharged, the stopping property of whole cracking system is better strengthened,, and can be shortened the cracking time simultaneously because the resistance to flow of molten has just alleviated pressure for whole propulsion system much smaller than solid feed.Particularly, because plastics are poor conductors of heat, after its preheating is molten, can reduce the required energy consumption of cracking, can guarantee the continuity of cracking process better, and the raw material of molten is easier uniformly attached to the solid-state thermophore surface and the very thin thickness of adhering to, so scission reaction can be finished in the extremely short time, further shortened the required time of entire reaction, also provide favourable condition for the industrialization continuous production.
Cracking process of the present invention, can handle the single raw material of composition, also can handle raw materials mixed, but when processing contains the raw material of PVC, because the HCl that the heating back produces can produce corrosion to cracking apparatus, therefore should utilize the characteristics of PVC low temperature pyrolyzer to remove the HCl that the PVC pyrolysis is produced at pre-heating stage.Removing HCl can adopt collection or utilize alkaline matter neutralization or other art methods to finish.
Utilize method of the present invention to realize serialization production, the molten raw material and the solid-state thermophore that the molten raw material after raw material or the preheating or preheating should be removed after HCl handles are sent into cracking process respectively continuously, discharge the splitting gas that produces in the cracking process continuously, and after cracking, solid-state thermophore and solid-state resultant are discharged together continuously.Solid-state thermophore is generated residue, sends into process furnace enter cracking process again after heating through delivery system output back separate solid by cracking process, in order at utmost to reduce the loss of heating back heat, generally all can before heating, just separate solid-state generation residue, or in heating, solid-state generation residue is separated, so just can guarantee that solid-state thermophore can carry maximum heat and get back in the cracking process.In this process, the continuous derivation except the entering continuously of raw material, resultant has realized that also the circulation of solid-state thermophore is used continuously, thereby has realized carrying out continuously of whole cracking process.
Because the mixture movement resistance of solid-state thermophore and raw material or molten raw material is bigger, therefore, should apply external force to it, guarantee its motion or mobile, specifically can adopt the modes such as rotation case of inclination to realize, also can realize by screw propulsion mechanism, this mode is except that promoting raw material and solid-state thermophore, can also stir mixture simultaneously, material is heated more evenly quicken cracking, thereby promote the complete cracking of raw material.
The splitting gas that produces for cracking can further carry out catalytic pyrolysis by fixed catalytic bed or alternate manner, enter separation column afterwards and carry out fractionation, the oil gas of fractionation gained different components adopts different process to be adjusted the lightweight oil that can obtain various higher quality after the condensing tower condensation; Can be used as fuel for incondensible gas burns in process furnace solid-state thermophore is heated, the combustible gas that do not coagulate that cracking not only can be produced utilizes like this, saved production cost, the environmental pollution of also having avoided these gases are directly discharged and having caused can be before the non-condensable gas burning be carried out purifying treatment such as desulfurization in order further to reach environmental protection requirement to it.
Solid-state thermophore is heated in process furnace, the residual combustiblematerials of the cracking of its surface attachment can be burnt rapidly, the flue gas that incombustible substance and grey branch produce with the burning back is discharged outside the roasting kiln, in order to reach the purpose of harmless emission, flue gas need be removed wherein objectionable impurities by dust removal installation, residual ash content of gained and incombustible substance are because the minimum material of construction that can be used as of particle carries out second stage employ, by still containing a large amount of heat energy in the flue gas of dust removal installation, therefore can utilize it that raw material is carried out preheating, in the concrete technology, can be directly with it to raw material preheating, after also can making itself and thermal oil or other thermal medium carry out heat exchange, raw material is carried out preheating by thermal medium.This process, further perfect technological process of the present invention to reach innoxious emission standards, is avoided environmental pollution.
Solid-state thermophore among the present invention can be selected different materials according to material fusing point, specific heat capacity, requires to guarantee that when being higher than cracking temperature it is that solid-state, concrete shape is not limit.When concrete the use, can adopt particularly metal ball body of spheroid, the globular thermophore can also make thermophore and raw material that maximum contact area is arranged, thereby accelerate the carrying out of scission reaction to the full extent, if but the excessive sealing that will make the too much standoff effects cracker of generation between ball and the ball of the diameter of spheroid, therefore the diameter with the heat conduction ball is controlled at 5-25mm, can increase contact area to the full extent when guaranteeing sealing.The used material melting point of solid-state thermophore is higher than the required temperature of plastic cracking.
For the thorough while that scission reaction is carried out can guarantee the time that cracking is required again, need to guarantee the contact area that maximum is arranged of molten plastic waste and solid-state thermophore and moderate time, because the effect of heat conduction ball is better than other solid-state thermophores, therefore control: raw material per ton, per hour use heat conduction ball 30-50 ton, so just can be in the assurance lytic effect shortening reaction times; In order to guarantee carrying out smoothly of scission reaction, the heat conduction ball enter cracker the time temperature be controlled between the required bound temperature of plastic cracking and get final product.
In the feed(raw material)inlet because raw material is discharged from through wherein contained gas after the screw extrusion, and raw material self can be piled up simultaneously, thereby the sealing the when discharge that also can guarantee gas guarantees charging; At solid-state thermophore inlet, the solid state heat carrier can be very little by a large amount of spaces that are deposited in together each other, guaranteed that sealing is finished in the discharge of gas; In solid-state thermophore outlet, equally also adopted screw propulsion, so just on the basis of piling up, can further push thermal barrier at hot body self, guaranteed sealing with the external world.By above-mentioned sealing technology, the environment that makes whole cracking process all be in sealing guaranteed cracking process also guaranteed smoothly can not fire in the production process etc. dangerous.
Adopt cracking waste plastics technology of the present invention, can make the cracking of plastic waste reach industrial continuous production, make the oil quality of processing speed and cracking gained be greatly improved, owing to adopted solid-state thermophore as thermophore, both guaranteed that the heating surface area that the balanced while of cracking temperature has also been improved plastic waste greatly in the reaction process can be stablized fast scission reaction more and carried out, simultaneously because the heating efficiency of solid-state thermophore is high a lot of than direct-fired efficient, therefore required energy consumption will have been saved the energy much smaller than direct-fired mode in heat-processed.Because the used heating fuel of the present invention is the non-condensable gas that self cracking produced, make its obtained recycle saved production cost reduced simultaneously non-condensable gas directly discharging realized the standard of industrial continuous innoxious production for the pollution of environment.
Realize that cracking apparatus of the present invention comprises its shell, screw propulsion mechanism is set in the enclosure, the shell front portion is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the rear portion is provided with solid-state thermophore and the outlet of solid-state resultant.This equipment can be realized the mixture of raw material and solid-state thermophore is advanced, and finishes cracking in its moving process.
Owing in cracking process, generate splitting gas, therefore, should on the blade of screw propulsion mechanism, ventilating pit be set, splitting gas is dredged, so that discharge; And the air pressure between the minimizing screw-blade, the safety and stability of assurance Working environment.
Because the weight of raw material and solid-state thermophore is bigger in the cracker, and than thickness, its resistance of motion is bigger, can on the blade of screw propulsion mechanism, be provided with to the edge of material working direction bending, play the effect of stirring and strengthening.Because this structure can realize the stirring to raw material, help to realize abundant cracking, and prevent that solid-state thermophore is squeezed in the edge of blade, guarantee the normal operation of equipment.
Realize continuous cracking, need to guarantee the sealing of cracker each several part, sealing for the import and export of raw material, all can adopt existing techniques in realizing, adopted at the material inlet place and adopt the melting charge sealing then to adopt dynamic fluid seals and stockpile sealing in order to reach best effect the present invention in solid-state thermophore import, can adopt the mode of the gradually big solid-state thermophore transfer container of the opening that is provided with inclination at this opening for feed place to realize, particularly can adopt the gradually big eccentric transfer container of anti-bridge formation of opening, this structure can make solid-state thermophore heap in the input aperture and the realization sealing.
Among the present invention, to the heating of solid-state thermophore by finishing with the inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.Heating to solid-state thermophore can realize by straight form of burning.If can reach required temperature, straight burning can once be finished, and also can finish by multistage heating, for example, between spiral heating chamber and solid-state thermophore transfer container the inclination heat tunnel that oil/hot-air heater is housed is arranged.At this solid-state thermophore secondary is directly burnt, promote its temperature.In this structure, between spiral heating chamber and solid-state thermophore transfer container, the inclination heat tunnel that oil/hot-air heater is housed is arranged.Like this, in the inclination heat tunnel, form two or more cavitys, hot gas can be circled round therein, thereby fully solid-state thermophore is heated.
The sealed structure at the opening for feed of present device and solid-state resultant discharge port place can adopt prior art, also can adopt following structure: have transfer lime to be connected respectively at opening for feed and solid-state resultant discharge port place, screw propulsion mechanism cavity is housed in the transfer lime with it; The transfer lime that is connected with opening for feed is the cavity that has import and export, and the screw propulsion mechanism in the transfer lime is the gradually little structure of pitch.This structure has guaranteed the sealing effectiveness of cracker, and, the structure of opening for feed transfer lime can utilize thermal barrier when entering cracker it to be carried out preheating, make raw material when entering cracker, can become molten state, so that cracking finish rapidly, reduce cracker itself the equipment input, reduce cost, afterheat utilization in the flue gas that can also realize producing when process furnace worked makes whole technology of the present invention and equipment more perfect.
The present invention adopts reasonable Processes and apparatus efficiently to realize the continuous production and the automatization thereof of plastic cracking.And this technology has also been carried out perfect in many-sides such as vent gas treatment and utilizations, makes it can reach environmental requirement, and has realized the reduction of cost.
Description of drawings
Fig. 1 is the process flow sheet of process implementing example 1,7;
Fig. 2 is a cracker equipment structure chart in the apparatus embodiments 18;
Fig. 3 is that the B of Fig. 2 is to view;
Fig. 4 is the A-A view of Fig. 2;
Fig. 5 is a heating installation structure sectional view in the apparatus embodiments 18;
Fig. 6 is the phantom view of heating installation vertical view in the apparatus embodiments 18;
Wherein, 1, shell, 2, opening for feed, 3, splitting gas outlet, 4, screw propulsion mechanism, 5, ventilating pit, 6, the anti-flight that cleans, 7, the outlet of solid-state thermophore and solid-state resultant, 8, solid-state thermophore input aperture, 9, oil/hot-air heater, 10, guiding flight, 11, revolve band, 12, the spiral heating chamber, 13, exhanst gas outlet, 14, solid-state thermophore import, 15, screen cloth, 16, butterfly valve, 17, residue bucket, 18, refractory slab, 19, the inclination heat tunnel, 20, solid-state thermophore transfer container, 21, solid-state thermophore outlet, 22, access hole.
Embodiment
Process implementing example 1:
Carry out preheating and make it reach molten inserting pre-heating system after the plastic waste pre-treatment, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 1 ton speed per hour, add conventional plastic cracking catalyzer simultaneously, the heat conduction ball moves in the same way and mixes with plastic waste in cracker and makes plastic waste generation cracking, 40 tons of per hour feeding amounts, the heat conduction spherical diameter is 10-20mm, temperature is 380-500 ℃, provide power by screw propulsion mechanism for the motion in the same way of raw material and solid-state thermophore in the cracker, and heat conduction ball and molten plastic waste are mixed; Cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, and second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas feeds the burning of heat conduction ball process furnace and separates the solid-state resultant of discharging cracker with the heat conduction ball by screen cloth simultaneously after purifying encapsulation process, high-temperature flue gas after the burning is through the dust removal installation dedusting, the compressed processing of gained dust is as material of construction, flue gas by dust removal installation enters interchanger and by thermal oil heat is reached the raw material preheating system, last flue gas by the stage purification device after emptying; The heat conduction ball is sent back in the cracker by the e Foerderanlage that is tightly connected with cracker after the process furnace internal heating is to 380-500 ℃.Adopt the extruding of spiral displacement to advance at the inlet of molten plastic waste and realize sealing, adopt self heaping of heat conduction ball to finish sealing, adopt screw propulsion and seal at the aggregately stacked of port heat conduction ball in the outlet of heat conduction ball at heat conduction ball inlet.Other equipment and technology adopt prior art.
Process implementing example 2:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 1.5 tons speed per hour, Ceramic Balls feeds in the cracker in the same way and mixes with it with per hour 44 tons speed and plastic waste and makes plastic waste generation cracking, the Ceramic Balls temperature is 400-460 ℃, and moving in the same way for raw material and Ceramic Balls by screw propulsion mechanism in the cracker provides power; Cracking gained gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas feeds solid-state thermophore heating unit burning, and the burning back is by emptying behind the stage purification device.Other equipment and technology adopt prior art.
Process implementing example 3:
Plastic waste is fed in the cracker with 0.5 ton speed per hour, add catalyzer simultaneously, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 30 tons speed and plastic waste and makes plastic waste generation cracking, solid-state thermophore temperature is 420-440 ℃, provides power by screw propulsion mechanism for raw material and solid-state thermophore move in the same way in the cracker; Cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, and second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas feeds solid-state thermophore heating unit burning after purifying encapsulation process, before being heated, solid-state thermophore isolates the solid-state resultant of therewith discharging cracker through screen cloth, high-temperature flue gas after the burning is through the dust removal installation dedusting, the gained dust collection is standby, flue gas by dust removal installation enters interchanger and by thermal oil heat is reached the raw material preheating system, last flue gas by the stage purification device after emptying, solid-state thermophore is heated the back and sends back in the cracker by the e Foerderanlage that is tightly connected with cracker.Other equipment and technology adopt prior art.
Process implementing example 4:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 1 ton speed per hour, add catalyzer simultaneously, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 30 tons speed and plastic waste and makes plastic waste generation cracking, solid-state thermophore temperature is 350-440 ℃, provides power by screw propulsion mechanism for raw material and solid-state thermophore move in the same way in the cracker; Cracking gained gas passes through separation column; The non-condensable gas of gained feeds the burning of solid-state thermophore heating unit after the cut condensation, and burning gained flue gas enters interchanger heat is reached raw material preheating device, last flue gas by the stage purification device after emptying.Other equipment and technology adopt prior art.
Process implementing example 5:
Plastic waste is fed in the cracker with 2 tons speed per hour, the heat conduction ball is so that per hour 60 tons speed and plastic waste feed cracker in the same way and make plastic waste generation cracking with the plastic waste uniform mixing, the heat conduction spherical diameter is 5-15mm, temperature is 410-440 ℃, provides power by screw propulsion mechanism for raw material and solid-state thermophore move in the same way in the cracker; Cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, and second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas feeds the burning of heat conduction ball process furnace after purifying encapsulation process, the heat conduction ball is sent back in the cracker by e Foerderanlage after the process furnace internal heating is to 415-445 ℃, high-temperature flue gas after the burning is through the dust removal installation dedusting, the compressed processing of gained dust is as material of construction, flue gas by dust removal installation enters interchanger and by thermal oil heat is reached raw material preheating device, last flue gas by the stage purification device after emptying.Other equipment and technology adopt prior art.
Process implementing example 6:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, the plastic waste of molten feeds in the cracker with 0.5 ton speed per hour, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 24 tons speed and plastic waste and makes plastic waste generation cracking, cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas feeds the burning of solid-state thermophore heating unit, and the solid-state thermophore after being heated is sent back in the cracker by the e Foerderanlage that is tightly connected with cracker, the high-temperature flue gas after the burning through the dust removal installation dedusting after emptying.Other equipment and technology adopt prior art.
Process implementing example 7:
Carry out preheating and make it reach molten inserting pre-heating system after the plastic waste pre-treatment, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 3 tons speed per hour, add catalyzer simultaneously, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 80 tons speed and plastic waste and makes plastic waste generation cracking, solid-state thermophore temperature is 400-420 ℃, provides power by screw propulsion mechanism for raw material and solid-state thermophore move in the same way in the cracker; Cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, and second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas feeds solid-state thermophore heating unit burning after purifying encapsulation process, high-temperature flue gas after the burning is through the dust removal installation dedusting, the compressed processing of gained dust is as material of construction, flue gas by dust removal installation enters interchanger and by thermal oil heat is reached raw material preheating device, last flue gas by the stage purification device after emptying; Isolate the solid-state resultant of therewith discharging cracker through screen cloth before solid-state thermophore is heated, the solid-state thermophore after being heated is sent back in the cracker by the e Foerderanlage that is tightly connected with cracker.Adopt the variable-pitch propeller extruding to advance at the inlet of molten plastic waste and realize its sealing, adopt the heap of material self to realize sealing, adopt screw propulsion and seal in the gathering of port material in solid-state thermophore outlet at solid-state thermophore inlet.Other equipment and technology adopt prior art.
Process implementing example 8:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, the plastic waste of molten feeds in the cracker with 1.5 tons speed per hour, add catalyzer simultaneously, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 60 tons speed and plastic waste and makes plastic waste generation cracking, power is provided and quickens its uniform mixing for raw material and solid-state thermophore move in the same way by screw propulsion mechanism in the cracker; Cracking gained gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas is through burning, and the high-temperature flue gas after the burning is through the dust removal installation dedusting, and the compressed processing of gained dust is as material of construction, the flue gas by dust removal installation by the stage purification device after emptying.Other equipment and technology adopt prior art.
Process implementing example 9:
Carry out preheating and make it reach molten inserting pre-heating system after the plastic waste pre-treatment, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 0.8 ton speed per hour, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 40 tons speed and plastic waste and makes plastic waste generation cracking, solid-state thermophore temperature is 380-400 ℃, cracker becomes 10 degree angles with horizontal plane, make the motion in the same way under the self gravitation effect of solid-state thermophore and raw material; Cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, second pyrolysis gas passes through separation column, condensed non-condensable gas directly feeds solid-state thermophore heating unit burning, for the stopping property non-condensable gas that guarantees combustion processes carries out water-lute before entering solid-state thermophore heating unit, high-temperature flue gas after the burning is through the dust removal installation dedusting, the gained dust is compressed to be added as material of construction, flue gas by dust removal installation enters interchanger and by thermal oil heat is reached the raw material preheating system, last flue gas by the stage purification device after emptying; Solid-state thermophore is heated isolates the solid-state resultant of therewith discharging cracker through screen cloth simultaneously, and the solid-state thermophore after being heated is sent back in the cracker by the e Foerderanlage that is tightly connected with cracker.Other equipment and technology adopt prior art.
Process implementing example 10:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, the plastic waste of molten feeds in the cracker with 1.2 tons speed per hour, add catalyzer simultaneously, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 60 tons speed and plastic waste and makes plastic waste generation cracking, power is provided and accelerates its mixing for raw material and solid-state thermophore move in the same way by screw propulsion mechanism in the cracker; Cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, and second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas emptying, solid-state thermophore adopt thermal oil to heat.Other equipment and technology adopt prior art.
Process implementing example 11:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 1 ton speed per hour, add catalyzer simultaneously, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 30 tons speed and plastic waste and makes plastic waste generation cracking, solid-state thermophore temperature is 380-440 ℃, cracker becomes 15 degree angles with horizontal plane, make the motion in the same way under the self gravitation effect of solid-state thermophore and raw material; Cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, and second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas feeds solid-state thermophore heating unit burning after purifying encapsulation process, gas fume after burning enters interchanger heat is reached the raw material preheating system, last flue gas by the stage purification device after emptying; Solid-state thermophore after being heated is sent back in the cracker by the e Foerderanlage that is tightly connected with cracker.Other equipment and technology adopt prior art.
Process implementing example 12:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 3 tons speed per hour, the homomorphism thermophore feeds cracker in the same way and mixes with it with per hour 85 tons speed and plastic waste and makes plastic waste generation cracking, provides power by screw propulsion mechanism for raw material and solid-state thermophore move in the same way in the cracker; Cracking gained gas carries out second pyrolysis by catalytic tower.Solid-state thermophore adopts fuel oil to heat in independent process furnace as heating fuel.Other equipment and technology adopt prior art.
Process implementing example 13:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, the plastic waste of molten feeds in the cracker with 1.2 tons speed per hour, the heat conduction ball feeds cracker in the same way and mixes with it with per hour 40 tons speed and plastic waste and makes plastic waste generation cracking, the heat conduction spherical diameter is 15-25mm, temperature is 410-430 ℃, cracking gained gas carries out second pyrolysis by catalytic tower, second pyrolysis gas passes through separation column, the non-condensable gas of gained is collected standbyly after purifying encapsulation process after the cut condensation, and the heat conduction ball adopts hot blast to be heated to 425-430 ℃.Other equipment and technology adopt prior art.
Process implementing example 14:
Plastic waste is inserted preheating oven to carry out preheating and makes it reach molten, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 1 ton speed per hour, add catalyzer simultaneously, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 50 tons speed and plastic waste and makes plastic waste generation cracking, and solid-state thermophore temperature is 380-390 ℃; Cracker becomes 10 degree angles with horizontal plane, make solid-state thermophore and raw material lead to motion under the self gravitation effect; Cracking gained gas carries out second pyrolysis by separation column, and second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through adjusting; Condensed non-condensable gas directly feeds homomorphism thermophore heating unit burning, and the high-temperature flue gas after the burning is through the dust removal installation dedusting, and the compressed processing of gained dust is as material of construction, the flue gas by dust removal installation by the stage purification device after emptying; Solid-state thermophore is heated isolates the solid-state resultant of therewith discharging cracker through screen cloth simultaneously, and the solid-state thermophore after being heated is sent back in the cracker by the e Foerderanlage that is tightly connected with cracker.Other equipment and technology adopt prior art.
Process implementing example 15:
Plastic waste is inserted pre-heating system to carry out preheating and makes it reach molten, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 1 ton speed per hour, solid-state thermophore feeds cracker in the same way and mixes with it with per hour 45 tons speed and plastic waste and makes plastic waste generation cracking, solid-state thermophore temperature is 450-500 ℃, power is provided and quickens its mixing for raw material and solid-state thermophore move in the same way by screw propulsion mechanism in the cracker; Cracking gained gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas feeds solid-state thermophore heating unit burning after purifying encapsulation process, high-temperature flue gas after the burning is through the dust removal installation dedusting, the compressed processing of gained dust is as material of construction, flue gas by dust removal installation enters interchanger and by thermal oil heat is reached raw material preheating device, last flue gas by the stage purification device after emptying.Other equipment and technology adopt prior art.
Process implementing example 16:
Plastic waste is inserted pre-heating system to carry out preheating and makes tool reach molten, absorb the HCl that produces afterwards through the parlkaline absorption tower, the plastic waste of molten feeds in the cracker with 1 ton speed per hour, add catalyzer simultaneously, the heat conduction ball feeds cracker in the same way and mixes with it with per hour 34 tons speed and plastic waste and makes plastic waste generation cracking, the heat conduction spherical diameter is 5-20mm, provides power by screw propulsion mechanism for raw material and heat conduction ball move in the same way in the cracker; Cracking gained gas is by the fixed catalytic bed second pyrolysis that carries out, and second pyrolysis gas is by separation column, and the gained cut obtains oil products such as gasoline, diesel oil through condensation and adjustment; Condensed non-condensable gas directly feeds the burning of solid-state thermophore heating unit, and the high-temperature flue gas after the burning enters interchanger heat is reached the raw material preheating system, last flue gas by the stage purification device after emptying; The heat conduction ball is sent back in the cracker by the e Foerderanlage that is tightly connected with cracker to the plastic cracking lower limit temperature at the process furnace internal heating.Other equipment and technology adopt prior art.
Process implementing example 17:
What turnover raw material that above-mentioned embodiment except that embodiment 1 and 7 adopts and the sealing of solid-state thermophore were all adopted is prior art, in order to make the embodiment except that 1 and 7 reach more sealing effectiveness, make stockpile overstock the real sealing that realizes thereby adopt preheating in the ingress of raw material and adopt the extruding of spiral displacement to advance, at solid-state thermophore inlet, solid-state thermophore is heaped each other, and extruding realizes sealing, in the outlet of solid-state thermophore, realize sealing thereby adopt screw propulsion that solid-state thermophore is pushed each other to advance and assemble in the port.
The device structure that cracking process of the present invention adopts is as follows:
Apparatus embodiments 1:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.
In use, raw material is constantly entered in the shell by opening for feed, movement continuously under the promotion of screw propulsion mechanism, and in this process, the solid-state thermophore that is entered continuously by solid-state thermophore input aperture mixes with raw material, and raw material is heated, and makes it finish cracking.The splitting gas that generates after the cracking is discharged continuously by the cracker outlet, and the solid matter of generation and solid-state thermophore are discharged continuously.The other parts of present embodiment adopt prior art.
Present embodiment also can be used for discontinuous cracking technology.
Apparatus embodiments 2:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in the shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.On the blade of screw propulsion mechanism, have ventilating pit.The other parts of present embodiment adopt prior art.
In use, raw material is constantly entered in the cracker by opening for feed, movement continuously under the promotion of screw propulsion mechanism, in this process, the solid-state thermophore that is entered continuously by solid-state thermophore input aperture mixes with raw material, and raw material is heated, and makes it finish cracking.The splitting gas that generates after the cracking is discharged continuously by the cracker outlet, and the solid matter of generation and solid-state thermophore are discharged continuously.Ventilating pit on the screw propulsion mechanism blade is used for deriving splitting gas between blade, thus the security of raising equipment operation.
Apparatus embodiments 3:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.The edge of oriented material working direction bending on the blade of screw propulsion mechanism.The other parts of present embodiment adopt prior art.
Compare with apparatus embodiments 1, present embodiment improves the blade of propulsive mechanism, to promote the motion and the mixing of raw material and solid-state thermophore, improves lysis efficiency, improves lytic effect.
Apparatus embodiments 4:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.Place, solid-state thermophore input aperture is provided with the gradually big eccentric transfer container of anti-bridge formation of opening.The other parts of present embodiment adopt prior art.
On the basis of embodiment 1, present embodiment has further improved the structure at place, solid-state thermophore input aperture, thereby realizes the sealing at this place with rational structure.
Apparatus embodiments 5:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber.The inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.The other parts of present embodiment adopt prior art.
Adopted the solid-state thermophore heating arrangements of new-type structure in the present embodiment, this heating arrangements can help to realize finishing continuously of cracking technology, and in to the heat-processed of solid-state thermophore with it on adherent cracking resultant remove simultaneously.
Apparatus embodiments 6:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in the shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.On the blade of screw propulsion mechanism, have ventilating pit.The edge of oriented material working direction bending on the blade of screw propulsion mechanism.The other parts of present embodiment adopt prior art.
Apparatus embodiments 7:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.The edge of oriented material working direction bending on the blade of screw propulsion mechanism.Place, solid-state thermophore input aperture is provided with the gradually big eccentric transfer container of anti-bridge formation of opening.The other parts of present embodiment adopt prior art.
Apparatus embodiments 8:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.On the blade of screw propulsion mechanism, have ventilating pit.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.The other parts of present embodiment adopt prior art.
Apparatus embodiments 9:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.Have ventilating pit on the blade of screw propulsion mechanism.Place, solid-state thermophore input aperture is provided with the gradually big eccentric transfer container of anti-bridge formation of opening.The other parts of present embodiment adopt prior art.
Apparatus embodiments 10:
Present embodiment comprises its shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.The edge of oriented material working direction bending on the blade of screw propulsion mechanism.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.The other parts of present embodiment adopt prior art.
Apparatus embodiments 11:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in its shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.Place, solid-state thermophore input aperture is provided with the gradually big solid-state thermophore transfer container of opening, and it adopts eccentric structure formation, and its angle can prevent the appearance of material arch formation.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.The other parts of present embodiment adopt prior art.
Apparatus embodiments 12:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in the shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.On the blade of screw propulsion mechanism, have ventilating pit.The edge of oriented material working direction bending on the blade of screw propulsion mechanism.Place, solid-state thermophore input aperture is provided with the gradually big eccentric transfer container of anti-bridge formation of opening.The other parts of present embodiment adopt prior art.
Apparatus embodiments 13:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in the shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.On the blade of screw propulsion mechanism, have ventilating pit.The edge of the oriented material working direction bending in the blade edge place of screw propulsion mechanism.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.The other parts of present embodiment adopt prior art.
Apparatus embodiments 14:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in the shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.The edge of oriented material working direction bending on the blade of screw propulsion mechanism.Place, solid-state thermophore input aperture is provided with the gradually big eccentric transfer container of anti-bridge formation of opening.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.The other parts of present embodiment adopt prior art.
Apparatus embodiments 15:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in the shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.On the blade of screw propulsion mechanism, have ventilating pit.The edge of oriented material working direction bending on the blade of screw propulsion mechanism.Place, solid-state thermophore input aperture is provided with solid-state thermophore transfer container, described solid-state thermophore transfer container is the gradually big anti-bridge formation eccentric structure of opening, wherein the part of contiguous solid-state thermophore input aperture is axially consistent with solid-state thermophore input aperture, and the angle of another part and vertical direction is less than the angle of aforementioned part.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.The other parts of present embodiment adopt prior art.
Apparatus embodiments 16:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in the shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.On the blade of screw propulsion mechanism, have ventilating pit.The edge of the blade of screw propulsion mechanism bends to the material working direction.Place, solid-state thermophore input aperture is provided with solid-state thermophore transfer container, described solid-state thermophore transfer container is the gradually big anti-bridge formation eccentric structure of opening, wherein the part of contiguous solid-state thermophore input aperture is axially consistent with solid-state thermophore input aperture, and the angle of another part and vertical direction is less than the angle of aforementioned part.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the oil/gas heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.Between spiral heating chamber and solid-state thermophore transfer container, the inclination heat tunnel that oil/hot-air heater is housed is arranged.The other parts of present embodiment adopt prior art.
Apparatus embodiments 17:
Present embodiment comprises the cracker shell, and screw propulsion mechanism is set in the shell, and shell one end is provided with opening for feed and solid-state thermophore input aperture, and top is provided with the splitting gas outlet, and the other end is provided with solid-state thermophore and the outlet of solid-state resultant.Place, solid-state thermophore input aperture is provided with the gradually big eccentric transfer container of anti-bridge formation of opening.The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell.Between spiral heating chamber and solid-state thermophore transfer container, the inclination heat tunnel that oil/hot-air heater is housed is arranged.The other parts of present embodiment adopt prior art.
Apparatus embodiments 18:
Present embodiment comprises cracker shell 1, and screw propulsion mechanism 4 is set in the shell 1, and shell 1 one ends are provided with opening for feed 2 and solid-state thermophore input aperture 8, and top is provided with splitting gas outlet 3, and the other end is provided with solid-state thermophore and solid-state resultant outlet 7.On the blade of screw propulsion mechanism 4, have ventilating pit 5.The edge of the oriented material working direction bending in the blade edge place of screw propulsion mechanism 4.8 places, solid-state thermophore input aperture are provided with solid-state thermophore transfer container 20, and solid-state thermophore transfer container 20 is the gradually big anti-bridge formation eccentric structure of opening, and the part of its contiguous solid-state thermophore input aperture 8 is axially consistent with solid-state thermophore input aperture 8.The inlet termination process furnace of solid-state thermophore transfer container 20.Process furnace comprises the oil/gas heating chamber that has helical channel, goes to the bottom and connect residue bucket 17 by screen cloth 15 in this spiral heating chamber 12, and the solid-state thermophore import 14 of spiral heating chamber 12 connects solid-state thermophore and the solid-state resultant outlet 7 on the cracker shell 1.Between spiral heating chamber 12 and solid-state thermophore transfer container 20, the inclination heat tunnel 19 that oil/hot-air heater 9 is housed is arranged.Inclination heat tunnel 19 upper surfaces are provided with the segment distance of being separated by, downward one group of back flow plate changing successively of extended height along its length direction.After cracking is finished solid-state thermophore with separate after the cracking residue is together drawn off by closed-circuit system, solid-state thermophore is transported to the high-temperature flue gas heating chamber, contact with the high-temperature flue gas inverse motion of sending into from cracking residue and non-condensable gas roasting kiln and be heated, realization has fully guaranteed the security of system's operation to the long-range heating of solid-state thermophore.The other parts of present embodiment adopt prior art.
Apparatus embodiments 19:
Present embodiment be in aforesaid device embodiment 1 to 18 under any one situation to the improvement at its opening for feed and solid-state resultant discharge port place.The structure for conveying of its opening for feed and discharge port is the screw rod that is installed in the transfer lime, leaves cavity between the end of screw rod and the feeding tube end.Gradually little with the screw pitch in the transfer lime that opening for feed is connected, and transfer lime is originally as the bilayer structure that has the mobile chamber of thermal medium, can go at raw material at the mobile thermal barrier and it to be carried out preheating when carrying in the cracker, make raw material when entering cracker, can become molten state.
Claims (4)
1. waste plastic cracking equipment, comprise the cracker shell, it is characterized in that: screw propulsion mechanism is set in the shell, and the shell front portion is provided with opening for feed and solid-state thermophore input aperture, top is provided with the splitting gas outlet, and the rear portion is provided with solid-state thermophore and the outlet of solid-state resultant; Have ventilating pit on the blade of described screw propulsion mechanism; Place, solid-state thermophore input aperture is provided with the gradually big eccentric transfer container of anti-bridge formation of opening; The inlet termination process furnace of solid-state thermophore transfer container, process furnace comprises the heating chamber that has helical channel, go to the bottom and connect the residue bucket by screen cloth in this spiral heating chamber, the inlet of upper end, spiral heating chamber connects solid-state thermophore and the outlet of solid-state resultant on the cracker shell; Between spiral heating chamber and solid-state thermophore transfer container, the inclination heat tunnel that oil/hot-air heater is housed is arranged.
2. waste plastic cracking equipment according to claim 1 is characterized in that: the edge of screw propulsion mechanism blade bends to the material working direction.
3. waste plastic cracking equipment according to claim 1 is characterized in that: inclination heat tunnel upper surface is provided with the segment distance of being separated by, downward one group of back flow plate changing successively of extended height along its length direction.
4. waste plastic cracking equipment according to claim 3 is characterized in that: have transfer lime to be connected with it respectively at opening for feed and solid-state resultant discharge port place, screw propulsion mechanism cavity is housed in the transfer lime; The transfer lime that is connected with opening for feed is the cavity that has import and export, and the screw propulsion mechanism in the transfer lime is the gradually little structure of pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101261117A CN101074385B (en) | 2007-04-28 | 2007-06-06 | Waste-plastic continuous cracking process and cracker |
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| CN200710014720 | 2007-04-28 | ||
| CN200710014720.3 | 2007-04-28 | ||
| CN2007101261117A CN101074385B (en) | 2007-04-28 | 2007-06-06 | Waste-plastic continuous cracking process and cracker |
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| CN101074385A CN101074385A (en) | 2007-11-21 |
| CN101074385B true CN101074385B (en) | 2010-09-15 |
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| CN1246510A (en) * | 1999-06-08 | 2000-03-08 | 周继福 | Process and equipment for producing gasoline and diesel oil with waste plastics and/or heavy oil |
| CN1392224A (en) * | 2001-06-14 | 2003-01-22 | 上海市环境工程设计科学研究院 | Oil refining process of waste plastic and equipment |
| CN2513996Y (en) * | 2001-12-04 | 2002-10-02 | 姜皓 | Waste plastic oil refining device capable of continuously industrialized production |
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| CN101074385A (en) | 2007-11-21 |
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