CN105505551A - Electrochemical regeneration treatment method for waste lubricating oil - Google Patents
Electrochemical regeneration treatment method for waste lubricating oil Download PDFInfo
- Publication number
- CN105505551A CN105505551A CN201511032922.1A CN201511032922A CN105505551A CN 105505551 A CN105505551 A CN 105505551A CN 201511032922 A CN201511032922 A CN 201511032922A CN 105505551 A CN105505551 A CN 105505551A
- Authority
- CN
- China
- Prior art keywords
- lubricating oil
- waste lubricating
- solvent
- regeneration treatment
- electrochemical regeneration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0016—Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to an electrochemical regeneration treatment method for waste lubricating oil and belongs to the technical field of waste oil regeneration. The invention aims at providing an electrochemical regeneration treatment method for waste lubricating oil with simple technology, high quality, excellent performance and high yield. The electrochemical regeneration treatment method for the waste lubricating oil comprises the following steps: adding the waste lubricating oil and tetrahydrofurfuryl carbinol into a reactor, externally applying voltage for carrying out electrochemical treatment, so that impurity particles are clustered at the periphery of an electrode and form floccules, and then directly separating out a liquid oil phase; and carrying out phase separation on the obtained liquid oil phase, and then carrying out after treatment, so that the regenerated lubricating oil is obtained. The electrochemical regeneration treatment method for the waste lubricating oil has the advantages that particulate matters in the waste lubricating oil can be well clustered and enlarged, so that a separating effect is realized; and total metal content can be controlled to be less than 180ppm, total ash removal rate can be controlled to be more than 90%, and phosphorus removal rate can be controlled to be more than 95%.
Description
Technical field
The present invention relates to a kind of electrochemical regeneration treatment process of waste lubricating oil, belong to technical field of waste oil regeneration.
Background technology
At petrochemical industry, along with the develop rapidly of domestic and international economic technology, for the application of lube product and demand also more and more higher; Meanwhile, also create a large amount of waste lubricating oils, cause huge harm to environment, also result in a large amount of wastings of resources.
At present, it is main that the method for regenerating waste lubricating oil of domestic contrast maturation mainly adopts through distillation, solvent wash and traditional physical method such as clay-filtered, and adopts the technology of method of hydrotreating process waste lubricating oil to be still in conceptual phase, and technique is not very desirable.But no matter be traditional waste lubricant oil regeneration, or the method for hydrotreatment waste lubricating oil all exists following weak point: waste lubricating oil significant loss 20% ~ 50%, the utilization ratio of useless lubrication raw material is low; Product property is poor, and colourity is large, only can use as low-grade lubricating oil; Produce the pollution substance such as acid sludge, sulfide in treating processes, process loaded down with trivial details, cost is high; After hydrotreatment, lubricating oil property improve, but light stability and heat-resistant quality poor, the easy variable color of product also precipitates.Meanwhile, existing method for regenerating waste lubricating oil needs the quality by repeatedly processing guarantee the finished product mostly.As Chinese patent application (publication number: CN10405976A) discloses a kind of useless profit regeneration method, the method comprises wire cloth filtration, sedimentation, the filter of PP millipore filter essence, flocculation, rectifying, molecular distillation and membrane filtration step successively.This process method step is complicated, and treating processes needs to carry out at relatively high temperatures mostly, simultaneously, the flocculation agent of additional flocculation agent is Poly Dimethyl Diallyl Ammonium Chloride, oxyethane, propylene, thanomin and ethylenediamine copolymer, need to process under the temperature condition of 80 DEG C ~ 150 DEG C, complex disposal process, and additional flocculation agent is also not easily removed.On the other hand, existing ordinary method adopts the method for physics to flocculate mostly, sedimentation with the treating processes such as to be separated, not only process is complicated, and is also suitable large for the usage quantity of solvent, is unfavorable for that actual production operates.
Summary of the invention
The present invention is directed to the defect existed in above prior art, a kind of electrochemical regeneration treatment process of waste lubricating oil is provided, the problem solved is to provide a kind of new regeneration treating method, has technique simple, and the rerefined oil obtained has the high and excellent performance of quality and the high effect of yield.
The object of the invention is to be achieved by the following technical programs, a kind of electrochemical regeneration treatment process of waste lubricating oil, the method comprises the following steps:
A, add in reactor by waste lubricating oil and tetrahydrofurfuryl carbinol, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, more directly isolates liquid oil phase;
B, the liquid oil phase obtained is separated after, then carry out aftertreatment, obtain the lubricating oil after regenerating.
Due to waste lubricating oil, to have aromaticity content, metal content, content of heteroatoms and carboloy residue high, and insolubles and polarity additive residual also higher, and in general waste lubricating oil, phosphorus contains about 2000ppm ~ 4000ppm.The present inventor finds, without the need to through pre-treatment and settlement treatment, also flocculate without the need to adding ammonium class flocculation agent, directly add a small amount of tetrahydrofurfuryl carbinol solvent and adopt electrochemical treatment to combine, can be good at making the particulate matter in waste lubricating oil to gather becoming large and reach the effect of separation, in particular, after the present invention is mixed with waste lubricating oil by employing tetrahydrofurfuryl carbinol solvent, then, after energising, make coating-forming voltage in-between the electrodes, thus gathering of particulate matter in waste lubricating oil can be accelerated, simultaneously, characteristic in conjunction with the strong polarity of tetrahydrofurfuryl carbinol solvent added is easier to that the suspended particulates in waste lubricating oil are gathered and becomes large, thus constantly form large particle floc sedimentation, thus add fast particle coagulation at surrounding them, better can form throw out, throw out is made to be gathered in around electrode, thus reach the object of solid-liquid separation, without the need to passing through the processes such as complicated pre-treatment and sedimentation, simplify processes technique greatly, and on the other hand, by adding tetrahydrofurfuryl carbinol solvent, the residual quantity of the phosphorus in the upper strata lubrication oil phase that this step can be enable to obtain is reduced greatly, thus being more conducive to next step manipulation of regeneration, improving the quality of lubricating oil.Compared to the flocculation agent of routine, the present invention adopts tetrahydrofurfuryl carbinol solvent to have some advantage following: just can realize the effect of flocculating at normal temperatures and pressures, have the advantage of reaction conditions gentleness; And the not volatile and low toxicity of solvent, boiling point is 177 degrees Celsius at one atm, toxicity LD50 (mg/kg); And also have be easy to be separated, do not dissolve each other with oil, avoid adopt underpressure distillation produce energy consumption and solvent loss.In particular, after the process of this step, the phosphorus in lubrication oil phase (P) content can be made to reach below 200ppm.And the content of metal ion can also be reduced; Then, by the process that is separated, the particulate matter of removing micron order size, thus enable the lubricating oil of final regeneration realize preferable quality index, total metal contents in soil is enable to control at <180ppm, total percent of ash clearance >90%, the clearance >95% of phosphorus.
In the electrochemical regeneration treatment process of above-mentioned waste lubricating oil, as preferably, the volume that tetrahydrofurfuryl carbinol described in steps A adds is 1.0% ~ 10% of waste lubricating oil volume.Owing to combining electrochemical treatment process, thus the amount of the tetrahydrofurfuryl carbinol added is reduced greatly, simplify the recycling time of solvent and the reduction of cost.Although, tetrahydrofurfuryl carbinol time reduce greatly, still can ensure flocculate effect and lf dose, make the phosphorus composition effectively removed in waste lubricating oil, there will not be the phenomenons such as emulsification.As further preferred, the volume that tetrahydrofurfuryl carbinol described in steps A adds is 2.0% ~ 4.0% of waste lubricating oil volume.
In the electrochemical regeneration treatment process of above-mentioned waste lubricating oil, as preferably, the magnitude of voltage of impressed voltage described in steps A is 50V ~ 300V.Effectively can ensure lf dose by the magnitude of voltage controlling impressed voltage, meanwhile, the gathering of throw out can be accelerated again, thus reach the effect of high clearance.
In the electrochemical regeneration treatment process of above-mentioned waste lubricating oil, as preferably, aftertreatment described in step B comprises carries out underpressure distillation removing tetrahydrofurfuryl carbinol solvent.Due to after being separated, also can there is a small amount of tetrahydrofurfuryl carbinol solvent in oil phase, steamed the quality staying process better can improve product by decompression.Be conducive to the impurity be soluble in tetrahydrofurfuryl carbinol solvent in more effective removal waste lubricating oil, improve the quality of products further.
In the electrochemical regeneration treatment process of above-mentioned waste lubricating oil, as preferably, aftertreatment described in step B also comprises adsorption treatment.Better can be removed the impurity in oil phase by adsorption treatment, improve the quality of product.As further preferred, described adsorption treatment carries out adsorption treatment for adopting alchlor, clay or carclazyte.
In the electrochemical regeneration treatment process of above-mentioned waste lubricating oil, as preferably, mixed organic solvents in the solvent of tetrahydrofurfuryl carbinol described in steps A, and described organic solvent is selected from ketones solvent, alcoholic solvent or alkane solvents, and the volume ratio of described tetrahydrofurfuryl carbinol and organic solvent is 1:0.05 ~ 0.1.Be conducive to the reunion of the particulate matter such as waste lubricating oil impurity, improve flocculating effect, be also conducive to the removal of phosphorus containg substances in waste lubricating oil, improve quality, if but secondary solvent add too much, the effect of tetrahydrofurfuryl carbinol can be affected on the contrary, be not easy to formed flocculation effect.As further preferred, described ketones solvent is selected from the ketones solvent such as acetone or butanone, preferably adopts acetone solvent, and acetone raw material is easy to obtain, and is conducive to aftertreatment; Described alcoholic solvent is selected from C
1~ C
4alcoholic solvent, as methyl alcohol, ethanol, propyl alcohol or Virahol etc.; Described alkane solvents is selected from methylene dichloride, chloroform or tetracol phenixin.
In sum, the present invention has the following advantages:
The electrochemical regeneration treatment process of waste lubricating oil of the present invention, add a small amount of tetrahydrofurfuryl carbinol solvent and adopt electrochemical treatment to combine, can be good at making the particulate matter in waste lubricating oil to gather becoming large and reach the effect of separation, simultaneously, in conjunction with being separated and post-processing technology, the quality of the lubricating oil of final regeneration can be made to reach higher requirement, total metal contents in soil is enable to control at <180ppm, total percent of ash clearance >90%, the clearance >95% of phosphorus.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail, but the present invention is not limited to these embodiments.
Embodiment 1
Choose corresponding waste lubricating oil, measure through adopting ordinary method, in waste lubricating oil, the content of phosphorus is 4000ppm, then, directly waste lubricating oil and tetrahydrofurfuryl carbinol are added in reactor in proportion, reactor adopts conventional setting, reactor preferably can adopt mesoporous film to be separated into three regions, the two side areas of reactor is made to put into Graphite Electrodes respectively, be conducive to the more effective separation of aggregation be gathered on electrode, the add-on of tetrahydrofurfuryl carbinol solvent is made to be 5.0% of the volume of waste lubricating oil, then, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, wherein, the magnitude of voltage of impressed voltage is 50V, after electrochemical treatment terminates, keep switch-on regime, isolate liquid oil phase wherein, for next step process, in sepn process, energising object is kept to be to make the aggregation being gathered in surrounding them better assemble, can not be brought in liquid oil phase in sepn process and go, improve the quality of product.After aggregation can carry out centrifugal segregation solids, the liquid of recovery is merged in liquid oil phase, then, adopt the mode of three phase centrifugation to carry out the process that is separated by three-phase centrifuge isolated liquid oil phase (also can comprise the liquid incorporating recovery), after removing the solids of larger particles, then carry out the residual tetrahydrofurfuryl carbinol solvent of underpressure distillation removing, wherein, the temperature of underpressure distillation 90 DEG C, pressure-controlling, at-0.1MPa, obtains the lubricating oil after regenerating.Measure corresponding quality index, wherein, total metal contents in soil <180ppm in the lubricating oil after regeneration, the clearance >90% of total percent of ash, the content of phosphorus is 180ppm.Certainly, the lubricating oil after regeneration can be carried out adsorption treatment again, improve oil quality further, base oil can be used as and use.
Embodiment 2
Choose corresponding waste lubricating oil, measure through adopting ordinary method, in waste lubricating oil, the content of phosphorus is 3500ppm, then, directly waste lubricating oil and tetrahydrofurfuryl carbinol are added in reactor in proportion, reactor adopts conventional setting, best reactor can adopt mesoporous film to be separated into three regions, make the two side areas of reactor can put into Graphite Electrodes respectively, be conducive to the more effective separation of aggregation be gathered on electrode, the add-on of tetrahydrofurfuryl carbinol solvent is made to be 10% of the volume of waste lubricating oil, then, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, wherein, the magnitude of voltage of impressed voltage is 80V, after electrochemical treatment terminates, keep switch-on regime, isolate liquid oil phase wherein, for next step process.Isolated liquid oils is carried out by adopting the centrifugal mode of two-phase to put into two-phase whizzer the process that is separated mutually, after removing the solids of larger particles, carry out underpressure distillation again and reclaim tetrahydrofurfuryl carbinol solvent, wherein, the temperature of underpressure distillation 90 DEG C, pressure-controlling is after-0.098MPa underpressure distillation terminates, carclazyte is adopted to carry out adsorption treatment again, after adsorption treatment terminates, cross and filter carclazyte, obtain the lubricating oil after regenerating.Measure corresponding quality index, wherein, total metal contents in soil <150ppm in the lubricating oil after regeneration, the clearance >92% of total percent of ash, the content of phosphorus is 120ppm.
Embodiment 3
Choose corresponding waste lubricating oil, measure through adopting ordinary method, in waste lubricating oil, the content of phosphorus is 3800ppm, then, directly waste lubricating oil and tetrahydrofurfuryl carbinol are added in reactor in proportion, reactor adopts conventional setting, reactor preferably can adopt mesoporous film to be separated into three regions, make the two side areas of reactor can put into Graphite Electrodes respectively, be conducive to the more effective separation of aggregation be gathered on electrode, the add-on of tetrahydrofurfuryl carbinol solvent is made to be 4.0% of the volume of waste lubricating oil, then, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, wherein, the magnitude of voltage of impressed voltage is 100V, after electrochemical treatment terminates, keep switch-on regime, isolate liquid oil phase wherein, for next step process.The mode of three phase centrifugation is adopted to carry out the process that is separated by three-phase centrifuge isolated liquid oils, after removing the solids of larger particles, carry out underpressure distillation again and reclaim tetrahydrofurfuryl carbinol solvent, wherein, the temperature of underpressure distillation 90 DEG C, pressure-controlling at-0.1MPa, after underpressure distillation terminates, adopt alchlor to carry out adsorption treatment again, obtain the lubricating oil after regenerating.Measure corresponding quality index, wherein, total metal contents in soil <160ppm in the lubricating oil after regeneration, the clearance >90% of total percent of ash, the content of phosphorus is 130ppm.
Embodiment 4
Choose corresponding waste lubricating oil, measure through adopting ordinary method, in waste lubricating oil, the content of phosphorus is 3500ppm, then, directly waste lubricating oil and the tetrahydrofurfuryl carbinol mixed solvent being mixed with a small amount of Virahol are added in reactor in proportion, reactor adopts conventional setting, best reactor can adopt mesoporous film to be separated into three regions, make the two side areas of reactor can put into Graphite Electrodes respectively, be conducive to the more effective separation of aggregation be gathered on electrode, the add-on of tetrahydrofurfuryl carbinol solvent is made to be 10% of the volume of waste lubricating oil, and make the volume of Virahol and the volume ratio of tetrahydrofurfuryl carbinol be 0.05:1, then, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, wherein, the magnitude of voltage of impressed voltage is 200V, after electrochemical treatment terminates, keep switch-on regime, isolate liquid oil phase wherein, for next step process.The mode of three phase centrifugation is adopted to carry out the process that is separated by three-phase centrifuge isolated liquid oils, after removing the solids of larger particles, carry out underpressure distillation again and reclaim tetrahydrofurfuryl carbinol solvent and isopropanol solvent, wherein, the temperature of underpressure distillation 85 DEG C, pressure-controlling at-0.098MPa, after underpressure distillation terminates, adopt alchlor to carry out adsorption treatment again, obtain the lubricating oil after regenerating.Measure corresponding quality index, wherein, total metal contents in soil <180ppm in the lubricating oil after regeneration, the clearance >92% of total percent of ash, the content of phosphorus is 87ppm.Certainly, the isopropanol solvent added in the middle tetrahydrofurfuryl carbinol solvent in the present embodiment also can adopt methanol solvate, propanol solvent or alcohol solvent carry out substitute can reach corresponding effect equally.
Embodiment 5
Choose corresponding waste lubricating oil, measure through adopting ordinary method, in waste lubricating oil, the content of phosphorus is 3500ppm, then, directly waste lubricating oil and the tetrahydrofurfuryl carbinol mixed solvent being mixed with a small amount of methylene dichloride are added in reactor in proportion, reactor adopts conventional setting, best reactor can adopt mesoporous film to be separated into three regions, make the two side areas of reactor can put into Graphite Electrodes respectively, be conducive to the more effective separation of aggregation be gathered on electrode, the add-on of tetrahydrofurfuryl carbinol solvent is made to be 10% of the volume of waste lubricating oil, and make the volume of methylene dichloride and the volume ratio of tetrahydrofurfuryl carbinol be 0.1:1, then, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, wherein, the magnitude of voltage of impressed voltage is 300V, after electrochemical treatment terminates, keep switch-on regime, isolate liquid oil phase wherein, for next step process.The mode of three phase centrifugation is adopted to carry out the process that is separated by three-phase centrifuge isolated liquid oils, after removing the solids of larger particles, carry out the mixed solvent that tetrahydrofurfuryl carbinol and methylene dichloride are reclaimed in underpressure distillation again, wherein, the temperature of underpressure distillation 85 DEG C, pressure-controlling at-0.098MPa, after underpressure distillation terminates, adopt clay to carry out adsorption treatment again, obtain the lubricating oil after regenerating.Measure corresponding quality index, wherein, total metal contents in soil <180ppm in the lubricating oil after regeneration, the clearance >92% of total percent of ash, the content of phosphorus is 91ppm.Certainly, the dichloromethane solvent added in the middle tetrahydrofurfuryl carbinol solvent in the present embodiment also can adopt chloroform solvent or carbon tetrachloride solvent carry out substitute can reach corresponding effect equally.
Embodiment 6
Choose corresponding waste lubricating oil, measure through adopting ordinary method, in waste lubricating oil, the content of phosphorus is 4200ppm, then, directly waste lubricating oil and the tetrahydrofurfuryl carbinol mixed solvent being mixed with a small amount of acetone are added in reactor in proportion, reactor adopts conventional setting, reactor preferably adopts mesoporous film to be separated into three regions, make the two side areas of reactor can put into Graphite Electrodes respectively, be conducive to the more effective separation of aggregation be gathered on electrode, the add-on of tetrahydrofurfuryl carbinol solvent is made to be 1.0% of the volume of waste lubricating oil, and make the volume of acetone and the volume ratio of tetrahydrofurfuryl carbinol be 0.08:1, then, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, wherein, the magnitude of voltage of impressed voltage is 200V, after electrochemical treatment terminates, keep switch-on regime, isolate liquid oil phase wherein, for next step process.The mode of three phase centrifugation is adopted to carry out the process that is separated by three-phase centrifuge isolated liquid oils, after removing the solids of larger particles, carry out the mixed solvent that tetrahydrofurfuryl carbinol and acetone are reclaimed in underpressure distillation again, wherein, the temperature of underpressure distillation 90 DEG C, pressure-controlling at-0.1MPa, after underpressure distillation terminates, adopt carclazyte to carry out adsorption treatment again, obtain the lubricating oil after regenerating.Measure corresponding quality index, wherein, total metal contents in soil <180ppm in the lubricating oil after regeneration, the clearance >92% of total percent of ash, the content of phosphorus is 75ppm.
Embodiment 7
Choose corresponding waste lubricating oil, measure through adopting ordinary method, in waste lubricating oil, the content of phosphorus is 4200ppm, then, directly waste lubricating oil and the tetrahydrofurfuryl carbinol mixed solvent being mixed with a small amount of acetone are added in reactor in proportion, reactor adopts conventional setting, reactor preferably adopts mesoporous film to be separated into three regions, make the two side areas of reactor can put into Graphite Electrodes respectively, be conducive to the more effective separation of aggregation be gathered on electrode, the add-on of tetrahydrofurfuryl carbinol solvent is made to be 1.0% of the volume of waste lubricating oil, and make the volume of acetone and the volume ratio of tetrahydrofurfuryl carbinol be 0.08:1, then, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, wherein, the magnitude of voltage of impressed voltage is 200V, after electrochemical treatment terminates, keep switch-on regime, isolate liquid oil phase wherein, for next step process.The mode of three phase centrifugation is adopted to carry out the process that is separated by three-phase centrifuge isolated liquid oils, after removing the solids of larger particles, removing solvent without the need to carrying out underpressure distillation, directly adopting alchlor to carry out adsorption treatment, obtain the lubricating oil after regenerating.Measure corresponding quality index, wherein, total metal contents in soil <180ppm in the lubricating oil after regeneration, the clearance >90% of total percent of ash, the content of phosphorus is 142ppm.
Specific embodiment described in the present invention is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although made a detailed description the present invention and quoted some specific embodiments as proof, to those skilled in the art, only otherwise it is obvious for leaving that the spirit and scope of the present invention can make various changes or revise.
Claims (8)
1. an electrochemical regeneration treatment process for waste lubricating oil, it is characterized in that, the method comprises the following steps:
A, add in reactor by waste lubricating oil and tetrahydrofurfuryl carbinol, impressed voltage carries out electrochemical treatment makes impurity particle be gathered in surrounding's formation throw out of electrode, more directly isolates liquid oil phase;
B, the liquid oil phase obtained is separated after, then carry out aftertreatment, obtain the lubricating oil after regenerating.
2. the electrochemical regeneration treatment process of waste lubricating oil according to claim 1, it is characterized in that, the volume that tetrahydrofurfuryl carbinol described in steps A adds is 1.0% ~ 10% of waste lubricating oil volume.
3. the electrochemical regeneration treatment process of waste lubricating oil according to claim 1, it is characterized in that, the magnitude of voltage of impressed voltage described in steps A is 50V ~ 300V.
4. the electrochemical regeneration treatment process of waste lubricating oil according to claim 1, is characterized in that, aftertreatment described in step B comprises carries out underpressure distillation removing tetrahydrofurfuryl carbinol solvent.
5. the electrochemical regeneration treatment process of waste lubricating oil according to claim 1 or 2 or 3 or 4, is characterized in that, comprise adsorption treatment described in step B.
6. the electrochemical regeneration treatment process of waste lubricating oil according to claim 5, is characterized in that, described adsorption treatment carries out adsorption treatment for adopting alchlor, clay or carclazyte.
7. the electrochemical regeneration treatment process of waste lubricating oil according to claim 1 or 2 or 3 or 4, it is characterized in that, secondary organic solvent is mixed in the solvent of tetrahydrofurfuryl carbinol described in steps A, and described secondary organic solvent is selected from ketones solvent, alcoholic solvent or alkane solvents, and the volume ratio of described tetrahydrofurfuryl carbinol and organic solvent is 1:0.05 ~ 0.1.
8. the electrochemical regeneration treatment process of waste lubricating oil according to claim 7, it is characterized in that, described ketones solvent is selected from acetone or butanone; Described alcoholic solvent is selected from C
1~ C
4alcoholic solvent; Described alkane solvents is selected from methylene dichloride, chloroform or tetracol phenixin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032922.1A CN105505551B (en) | 2015-12-31 | 2015-12-31 | A kind of electrochemical regeneration processing method of waste lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032922.1A CN105505551B (en) | 2015-12-31 | 2015-12-31 | A kind of electrochemical regeneration processing method of waste lubricating oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105505551A true CN105505551A (en) | 2016-04-20 |
| CN105505551B CN105505551B (en) | 2018-10-02 |
Family
ID=55713860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511032922.1A Active CN105505551B (en) | 2015-12-31 | 2015-12-31 | A kind of electrochemical regeneration processing method of waste lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105505551B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110129122A (en) * | 2019-04-29 | 2019-08-16 | 重庆工商大学 | A kind of purification method again with heat treating oil |
| CN108822953B (en) * | 2018-08-31 | 2021-03-23 | 台州学院 | Efficient regeneration treatment method for waste lubricating oil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735882A (en) * | 2009-12-10 | 2010-06-16 | 武汉科技学院 | Method for regenerating base oil by waste internal-combustion engine oil |
| CN104310715A (en) * | 2014-11-04 | 2015-01-28 | 唐山金利海生物柴油股份有限公司 | Treatment method for biodiesel waste water |
| CN104498174A (en) * | 2015-01-04 | 2015-04-08 | 吴江华威特种油有限公司 | Regeneration method of waste lubrication oil |
| CN204529810U (en) * | 2015-04-15 | 2015-08-05 | 湖北天基生物能源科技发展有限公司 | A kind of sewer oil quick-dehydration device |
| CN105016538A (en) * | 2015-07-09 | 2015-11-04 | 杭州大地海洋环保有限公司 | Treatment method for water-based cutting wastewater |
-
2015
- 2015-12-31 CN CN201511032922.1A patent/CN105505551B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735882A (en) * | 2009-12-10 | 2010-06-16 | 武汉科技学院 | Method for regenerating base oil by waste internal-combustion engine oil |
| CN104310715A (en) * | 2014-11-04 | 2015-01-28 | 唐山金利海生物柴油股份有限公司 | Treatment method for biodiesel waste water |
| CN104498174A (en) * | 2015-01-04 | 2015-04-08 | 吴江华威特种油有限公司 | Regeneration method of waste lubrication oil |
| CN204529810U (en) * | 2015-04-15 | 2015-08-05 | 湖北天基生物能源科技发展有限公司 | A kind of sewer oil quick-dehydration device |
| CN105016538A (en) * | 2015-07-09 | 2015-11-04 | 杭州大地海洋环保有限公司 | Treatment method for water-based cutting wastewater |
Non-Patent Citations (1)
| Title |
|---|
| "《废润滑油再生》" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108822953B (en) * | 2018-08-31 | 2021-03-23 | 台州学院 | Efficient regeneration treatment method for waste lubricating oil |
| CN110129122A (en) * | 2019-04-29 | 2019-08-16 | 重庆工商大学 | A kind of purification method again with heat treating oil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105505551B (en) | 2018-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108251156B (en) | Method for two-stage hydrotreating regeneration process of full-fraction waste mineral oil | |
| CN106883925B (en) | Method for refining and regenerating waste lubricating oil | |
| CN103421594B (en) | Waste lubricating oil regeneration technology and preparation method for hydrogenation catalyst | |
| CN106350112A (en) | Method for pretreating waste mineral oil and performing hydrogenation regeneration to produce lubricating base oil | |
| CN105296135B (en) | A kind of regeneration method of waste lubricating oil | |
| CN103289807B (en) | Integrated membrane processing technology for purifying and regenerating spent lubrication oil | |
| CN105316018B (en) | A kind of coal tar deep processing preprocess method | |
| CN109201025B (en) | Regeneration method of petroleum waste carclazyte | |
| CN108085060A (en) | Waste lubricant oil by hydrogenation process for purification and hydrofinishing system | |
| CN111592905A (en) | Method and system for pretreatment and purification of coal tar | |
| CN105505551A (en) | Electrochemical regeneration treatment method for waste lubricating oil | |
| CN105602695B (en) | A kind of regeneration treating method of waste lubricating oil | |
| CN102827681A (en) | Waste hydraulic oil regeneration technology | |
| CN105001892A (en) | Method for co-production of refined maltha through fixed bed-based coal-tar hydrogenation process | |
| CN103509572B (en) | A kind of technique utilizing solvent method to prepare high-quality coal-based needle coke | |
| CN105524702A (en) | Waste lubricating oil environment-friendly regeneration method | |
| CN105255576A (en) | Method for two-stage extraction and purification of used lubricating oil regeneration base oil and application thereof | |
| CN104673369A (en) | Purifying processing method of petroleum slurry for preparing petroleum-based needle coke | |
| CN104312620B (en) | One removes catalyst fines and the solvent-extracted combined method of slurry oil in slurry oil | |
| CN103509574A (en) | Process for preparing high-quality coal-series needle-coke | |
| CN105419859A (en) | Reverse back extraction refining method for petroleum reduced pressure distillation distillate and application thereof | |
| CN213085884U (en) | Coal tar pretreatment clean system device | |
| CN109777592A (en) | A kind of electrochemical regeneration processing method of waste lubricating oil | |
| CN104130853A (en) | Method for regenerating waste oil by extracting novel combination solvent | |
| CN108949212B (en) | Preparation method and preparation device of coal liquefied asphalt and coal liquefied asphalt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |