CN104059769A - Pretreatment system used in waste lubricating oil regeneration process - Google Patents
Pretreatment system used in waste lubricating oil regeneration process Download PDFInfo
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- CN104059769A CN104059769A CN201410277274.5A CN201410277274A CN104059769A CN 104059769 A CN104059769 A CN 104059769A CN 201410277274 A CN201410277274 A CN 201410277274A CN 104059769 A CN104059769 A CN 104059769A
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Abstract
The invention relates to a pretreatment system used in a waste lubricating oil regeneration process. The pretreatment system comprises a waste liquid conveying pipeline, a first filter device, a sedimentation device, a plate-and-frame filter, a pp microfilter and a flocculation device, wherein the first filter device is provided with a 150-mesh wire mesh; the liquid outlet end of the waste liquid conveying pipeline is communicated with the liquid inlet end of the first filter device; the liquid outlet end of the first filter device is communicated with the liquid inlet end of the sedimentation device; the liquid outlet end of the sedimentation device is communicated with the liquid inlet end of the plate-and-frame filter; the liquid outlet end of the plate-and-frame filter is communicated with the liquid inlet end of the pp microfilter; the liquid outlet end of the pp microfilter is communicated with the liquid inlet end of the flocculation device. The pretreatment system is applied in the waste lubricating oil regeneration process, has the advantages of small investment scale, low operating cost, good regenerated base oil product quality and the like compared with the prior art and has high regenerated base oil recovery rate.
Description
Technical field
The present invention relates to petroleum chemical industry field, particularly relate to a kind of pretreatment system of process for regeneration of waste lubricating oil.
Background technology
At petrochemical industry, the develop rapidly of economic technology both at home and abroad at any time, is also enhanced for the performance requriements of lube product; And in the harmonic process of lubricating oil, often need to add one or more additives to improve the specified property of lubricating oil, and the object being then in harmonious proportion or in order to improve kind and the quality of lubricating oil, thus the final required lubricating oil of client obtained.
At present, in process for regeneration of waste lubricating oil, all need to add a large amount of carclazytes and hydrofining both at home and abroad; Can produce " secondary pollution " materials such as acid sludge, sulfurous gas, contaminate environment, deals with trouble; Cause cost of investment high, and the oil production bearing is again low.
The Chinese invention patent that for example application number is 201310207519.2 " a kind of method for regenerating waste lubricating oil ", discloses a kind of method for regenerating waste lubricating oil, mainly comprises the following steps: waste lubricating oil is put into slurry tank and carry out simple separation; Get upper strata oil mixture, add Mixer pot, heating flocculation; Mixture after flocculation is proceeded to air distillation column distillation, through flashing tower, decompression evaporator, distill, then enter rectifying tower and carry out rectifying; By rectifying lubricating oil clay treatment out, filter, obtain base oil.But the deficiency of this patent is, need to add a large amount of carclazytes and hydrofining; Can produce " secondary pollution " materials such as acid sludge, sulfurous gas, contaminate environment, deals with trouble; Cause cost of investment high, and the oil production bearing is again low.
Summary of the invention
The object of the invention is to overcome the problems referred to above that prior art exists, propose a kind of pretreatment system of process for regeneration of waste lubricating oil.The present invention is applied in process for regeneration of waste lubricating oil, compared with prior art has that scale of investment is little, running cost is low, the advantages such as good product quality of Reclaimed Base Oil, and the Reclaimed Base Oil rate of recovery is high.
The present invention realizes by the following technical solutions:
A kind of pretreatment system of process for regeneration of waste lubricating oil, comprise waste liquid transport pipe, filtration unit for the first time, sedimentation device, flame filter press, pp millipore filter and flocculation plant, it is characterized in that: described filtration unit is for the first time provided with 150 object wire cloths, the outlet end of described waste liquid transport pipe is communicated with the liquid feeding end of filtration unit for the first time, the outlet end of described filtration unit is for the first time communicated with the liquid feeding end of sedimentation device, the outlet end of sedimentation device is communicated with the liquid feeding end of flame filter press, the outlet end of flame filter press is communicated with the liquid feeding end of pp millipore filter, the outlet end of pp millipore filter is communicated with the liquid feeding end of flocculation plant.
In described PP millipore filter, the aperture of micropore filtering film is 0.22-1 micron.
Described flame filter press and pp millipore filter are physical filtering, and flame filter press filters out a certain size large granular impurity and the suspended substance in waste lubricating oil, and pp millipore filter filters out the material of the small radii in waste lubricating oil.
Compared with prior art, its advantage is in the present invention:
1, the present invention is applied in process for regeneration of waste lubricating oil, compared with prior art has that scale of investment is little, running cost is low, the advantages such as good product quality of Reclaimed Base Oil, Reclaimed Base Oil rate of recovery > 90%.
2, the present invention is applied to also have the advantages such as the rate of recovery is high, nothing " secondary pollution " in process for regeneration of waste lubricating oil, save energy, environmental protection simultaneously, and regeneration efficiency is high, safety.
3, the present invention adopts wire cloth to be filtered into adopt 150 object wire cloths to filter for the first time waste lubricating oil, remove the great machinery impurity in waste lubricating oil; Described flame filter press and pp millipore filter are physical filtering, and flame filter press filters out a certain size large granular impurity and the suspended substance in waste lubricating oil, and pp millipore filter filters out the material of the small radii in waste lubricating oil; Adopt three filtrations the impurity in waste lubricating oil effectively can be removed, the aperture that particularly adopts micropore filtering film is the pp millipore filter of 0.22-1 micron, pp millipore filter filters out the material of the small radii in waste lubricating oil, guarantees the quality of rerefined oil base oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the embodiment of the present invention 4 structural representations
Reference numeral: 1, waste liquid transport pipe, 2, filtration unit for the first time, 3, sedimentation device, 4, pp millipore filter, 5, flocculation plant, 6, rectifier unit, 7, molecular distillation apparatus, 8, membrane filter appts, 9, base oil storage tank, 10, flame filter press.
Embodiment
Below the present invention is further detailed:
Embodiment 1:
A kind of pretreatment system of process for regeneration of waste lubricating oil, comprise waste liquid transport pipe 1, filtration unit 2 for the first time, sedimentation device 3, flame filter press 10, pp millipore filter 4 and flocculation plant 5, described filtration unit for the first time 2 is provided with 150 object wire cloths, the outlet end of described waste liquid transport pipe 1 is communicated with the liquid feeding end of filtration unit 2 for the first time, the outlet end of described filtration unit for the first time 2 is communicated with the liquid feeding end of sedimentation device 3, the outlet end of sedimentation device 3 is communicated with the liquid feeding end of flame filter press 10, the outlet end of flame filter press 10 is communicated with the liquid feeding end of pp millipore filter 4, the outlet end of pp millipore filter 4 is communicated with the liquid feeding end of flocculation plant 5.
In the present invention, in described PP millipore filter 4, the aperture of micropore filtering film is 0.22 micron.
In the present invention, described pp millipore filter 4 is physical filtering, and pp millipore filter filters out the material of the small radii in waste lubricating oil.
Embodiment 2:
A kind of waste lubricant oil regeneration system, comprise waste liquid transport pipe 1, filtration unit 2 for the first time, sedimentation fills a kind of pretreatment system of process for regeneration of waste lubricating oil, comprise waste liquid transport pipe 1, filtration unit 2 for the first time, sedimentation device 3, flame filter press 10, pp millipore filter 4 and flocculation plant 5, described filtration unit for the first time 2 is provided with 150 object wire cloths, the outlet end of described waste liquid transport pipe 1 is communicated with the liquid feeding end of filtration unit 2 for the first time, the outlet end of described filtration unit for the first time 2 is communicated with the liquid feeding end of sedimentation device 3, the outlet end of sedimentation device 3 is communicated with the liquid feeding end of flame filter press 10, the outlet end of flame filter press 10 is communicated with the liquid feeding end of pp millipore filter 4, the outlet end of pp millipore filter 4 is communicated with the liquid feeding end of flocculation plant 5.
In the present invention, in described PP millipore filter 4, the aperture of micropore filtering film is 0.5 micron.
In the present invention, described pp millipore filter 4 is physical filtering, and pp millipore filter filters out the material of the small radii in waste lubricating oil.
The present invention in use, can utilize base oil storage tank 9 that the base oil of regeneration is stored, easy to use.
Embodiment 3:
A kind of pretreatment system of process for regeneration of waste lubricating oil, comprise waste liquid transport pipe 1, filtration unit 2 for the first time, sedimentation device 3, flame filter press 10, pp millipore filter 4 and flocculation plant 5, described filtration unit for the first time 2 is provided with 150 object wire cloths, the outlet end of described waste liquid transport pipe 1 is communicated with the liquid feeding end of filtration unit 2 for the first time, the outlet end of described filtration unit for the first time 2 is communicated with the liquid feeding end of sedimentation device 3, the outlet end of sedimentation device 3 is communicated with the liquid feeding end of flame filter press 10, the outlet end of flame filter press 10 is communicated with the liquid feeding end of pp millipore filter 4, the outlet end of pp millipore filter 4 is communicated with the liquid feeding end of flocculation plant 5.
In the present invention, in described PP millipore filter 4, the aperture of micropore filtering film is 0.5 micron.
In the present invention, described pp millipore filter 4 is physical filtering, and pp millipore filter filters out the material of the small radii in waste lubricating oil.
Embodiment 4:
The present invention is applied in a kind of waste lubricant oil regeneration system that applicant applies for simultaneously:
A kind of waste lubricant oil regeneration system, comprise waste liquid transport pipe 1, filtration unit 2 for the first time, sedimentation device 3, flame filter press 10, pp millipore filter 4, flocculation plant 5, rectifier unit 6, molecular distillation apparatus 7 and membrane filter appts 8, described filtration unit for the first time 2 is provided with 150 object wire cloths, the outlet end of described waste liquid transport pipe 1 is communicated with the liquid feeding end of filtration unit 2 for the first time, the outlet end of described filtration unit for the first time 2 is communicated with the liquid feeding end of sedimentation device 3, the outlet end of sedimentation device 3 is communicated with the liquid feeding end of flame filter press 10, the outlet end of flame filter press 10 is communicated with the liquid feeding end of pp millipore filter 4, the outlet end of pp millipore filter 4 is communicated with the liquid feeding end of flocculation plant 5, the outlet end of flocculation plant 5 is communicated with the liquid feeding end of rectifier unit 6, the outlet end of rectifier unit 6 is communicated with the liquid feeding end of molecular distillation apparatus 7, the outlet end of molecular distillation apparatus 7 is communicated with the liquid feeding end of membrane filter appts 8.
Also comprise base oil storage tank 9, the outlet end of described membrane filter appts 8 is communicated with the liquid feeding end of base oil storage tank 9.
In described membrane filter appts 8, hollow-fibre membrane is housed, the external diameter of hollow-fibre membrane is 2.0mm, and the internal diameter of hollow-fibre membrane is 1.4mm.
A kind of process for regeneration of waste lubricating oil that uses a kind of waste lubricant oil regeneration system, comprises the following steps successively: wire cloth filtration, sedimentation, Plate Filtration, the filter of pp millipore filter essence, flocculation, rectifying, molecular distillation and membrane filtration;
Described wire cloth is filtered into and adopts 150 object wire cloths to filter for the first time waste lubricating oil, removes the great machinery impurity in waste lubricating oil;
Described sedimentation is carried out sedimentation for the waste lubricating oil that removes great machinery impurity is put into slurry tank, and the settling time is 20 hours, and settling temperature is 90 ℃;
Described Plate Filtration is that the waste lubricating oil upper strata oil mixture of getting sedimentation is put into flame filter press and filtered for the second time;
The filter of described pp millipore filter essence, for adopting pp millipore filter to filter for the third time waste lubricating oil, obtains treatment solution;
Described flocculation is that in heat-processed, treatment solution adds organic floculant after rising to 80 ℃, and stirs by treatment solution heating, and finally controlling temperature is 150 ℃, and be 40 minutes heat-up time, and whole heat-processed passes into nitrogen as shielding gas;
Described rectifying for the treatment solution after flocculation is carried out successively degassed, dry after, proceed to and in rectifying tower, carry out rectifying;
Described molecular distillation is that the lubricating oil that rectifying is gone out carries out multiple-grade molecular distillation again;
Described membrane filtration for after the lubricating oil after molecular distillation is heated through tubular fibre membrane filtration, by cooling, obtain base oil.
In the present invention, in described flocculation step, organic floculant add-on is for processing 8% of liquid measure, 100 ℃ of the temperature of reaction of organic floculant, the 30 minutes reaction times of organic floculant, 200 revs/min of stirring velocitys.
In the present invention, described organic floculant is Poly Dimethyl Diallyl Ammonium Chloride, oxyethane, propylene, thanomin and ethylenediamine copolymer.
In the present invention, described molecular distillation is at least three grades, and it is 150 ℃ that the temperature of the first step is controlled, and it is 120 ℃ that the temperature of residue progression is controlled.
In the present invention, in described pp millipore filter, the aperture of micropore filtering film is 0.22 micron.
In the present invention, described flame filter press and pp millipore filter are physical filtering, and flame filter press filters out a certain size large granular impurity and the suspended substance in waste lubricating oil, and pp millipore filter filters out the material of the small radii in waste lubricating oil.
In the present invention, the material of described hollow-fibre membrane is tetrafluoroethylene, and aperture is 0.5 μ m, and the external diameter of hollow-fibre membrane is 2.0mm, and the internal diameter of hollow-fibre membrane is 1.4mm.
Adopt recovery system of the present invention, the Reclaimed Base Oil rate of recovery can be up to 94.14%, and the scope of base oil is 100SN-350SN.
The present invention adopts described flocculation for treatment solution is heated, and in heat-processed, treatment solution adds organic floculant after rising to 80 ℃, and stir, final control temperature is 150 ℃, and be 30-40 minute heat-up time, and whole heat-processed passes into nitrogen as shielding gas; Organic floculant add-on is for processing the 5%-10% of liquid measure, 80 ℃-150 ℃ of the temperature of reaction of organic floculant, the 30 minutes reaction times of organic floculant, 200 revs/min of stirring velocitys; Under this composite regenerated condition, the waste oil after manipulation of regeneration has reached the standard of this rank fresh oil substantially, and the Reclaimed Base Oil rate of recovery can reach 94.55%.
The invention is not restricted to above-described embodiment, other embodiment that technical scheme according to the present invention obtains all should fall within the scope of protection of the present invention.
Claims (3)
1. the pretreatment system of a process for regeneration of waste lubricating oil, comprise waste liquid transport pipe (1), filtration unit (2) for the first time, sedimentation device (3), flame filter press (10), pp millipore filter (4) and flocculation plant (5), described filtration unit for the first time (2) is provided with 150 object wire cloths, the outlet end of described waste liquid transport pipe (1) is communicated with the liquid feeding end of filtration unit (2) for the first time, the outlet end of described filtration unit for the first time (2) is communicated with the liquid feeding end of sedimentation device (3), the outlet end of sedimentation device (3) is communicated with the liquid feeding end of flame filter press (10), the outlet end of flame filter press (10) is communicated with the liquid feeding end of pp millipore filter (4), the outlet end of pp millipore filter (4) is communicated with the liquid feeding end of flocculation plant (5).
2. the pretreatment system of a kind of process for regeneration of waste lubricating oil according to claim 1, is characterized in that: in described PP millipore filter (4), the aperture of micropore filtering film is 0.22-1 micron.
3. the pretreatment system of a kind of process for regeneration of waste lubricating oil according to claim 1, it is characterized in that: a kind of pretreatment system of process for regeneration of waste lubricating oil adopts a kind of pretreatment process of process for regeneration of waste lubricating oil, and a kind of pretreatment process of process for regeneration of waste lubricating oil comprises the following steps successively: wire cloth filtration, sedimentation, Plate Filtration, the filter of pp millipore filter essence and flocculation;
Described wire cloth is filtered into and adopts 150 object wire cloths to filter for the first time waste lubricating oil, removes the great machinery impurity in waste lubricating oil;
Described sedimentation is carried out sedimentation for the waste lubricating oil that removes great machinery impurity is put into slurry tank, and the settling time is 18-20 hour, and settling temperature is 80-90 ℃;
Described Plate Filtration is that the waste lubricating oil upper strata oil mixture of getting sedimentation is put into flame filter press and filtered for the second time;
The filter of described pp millipore filter essence, for adopting pp millipore filter to filter for the third time waste lubricating oil, obtains treatment solution;
Described flocculation is that in heat-processed, treatment solution adds organic floculant after rising to 80 ℃ by treatment solution heating; and stir, finally controlling temperature is 150 ℃, be 30-40 minute heat-up time; obtain pretreatment fluid, whole heat-processed passes into nitrogen as shielding gas.
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| CN201410277274.5A CN104059769A (en) | 2014-06-20 | 2014-06-20 | Pretreatment system used in waste lubricating oil regeneration process |
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| CN201410277274.5A CN104059769A (en) | 2014-06-20 | 2014-06-20 | Pretreatment system used in waste lubricating oil regeneration process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108865398A (en) * | 2018-08-01 | 2018-11-23 | 宁波中循环保科技有限公司 | A kind of waste lubricating oil preprocess method |
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Patent Citations (4)
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| KR100417769B1 (en) * | 2003-04-21 | 2004-02-05 | 한국기계연구원 | System for removing included different thing in waste oil and it`s method |
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| CN103589499A (en) * | 2013-11-19 | 2014-02-19 | 四川省德阳昌盛至轩石油化工厂 | Regeneration technology for molecular distillation treatment of spent lubrication oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108865398A (en) * | 2018-08-01 | 2018-11-23 | 宁波中循环保科技有限公司 | A kind of waste lubricating oil preprocess method |
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Application publication date: 20140924 |