CN107418621A - The method for removing metallic compound in waste lubricating oil - Google Patents
The method for removing metallic compound in waste lubricating oil Download PDFInfo
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- CN107418621A CN107418621A CN201710566646.XA CN201710566646A CN107418621A CN 107418621 A CN107418621 A CN 107418621A CN 201710566646 A CN201710566646 A CN 201710566646A CN 107418621 A CN107418621 A CN 107418621A
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- lubricating oil
- waste lubricating
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- metal remover
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G67/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only
- C10G67/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only
-
- 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
- C10M175/0025—Working-up used lubricants to recover useful products ; Cleaning by thermal processes
- C10M175/0033—Working-up used lubricants to recover useful products ; Cleaning by thermal processes using distillation processes; devices therefor
-
- 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
- C10M175/0025—Working-up used lubricants to recover useful products ; Cleaning by thermal processes
- C10M175/0041—Working-up used lubricants to recover useful products ; Cleaning by thermal processes by hydrogenation processes
-
- 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
- C10M175/0083—Lubricating greases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/205—Metal content
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/04—Diesel oil
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Lubricants (AREA)
Abstract
The method that the present invention proposes metallic compound in removing waste lubricating oil, comprises the following steps：1) pretreatment of waste lubricating oil：Added after metal remover is mixed with waste lubricating oil in ultrasonic oscillator and carry out ultrasonic vibration, then centrifuged, obtain residue and supernatant；2) atmospheric and vacuum distillation：The supernatant atmospheric and vacuum distillation of step 1) is cut out into 520 DEG C of cuts of ﹤ and 520 DEG C of tail oils of ﹥；3) hydro-upgrading：520 DEG C of cuts of ﹤ are subjected to hydro-upgrading by fixed bed, its product successively carries out gas-liquid separation by condensation and cold high score, and cold high score bottom liquid enters cold low point progress gas-liquid separation, obtains cold low point of bottom liquid；4) normal pressure is fractionated：Cold low point of bottom liquid is cut into atmospheric fractional tower, and atmospheric fractional tower bottom is lube base oil.This method can remove condensed-nuclei aromatics in lube cut, colloid, metal impurities, improve lube cut, and obtained final product is high-grade lube base oil.
Description
Technical field
The invention belongs to waste lubricating oil processing technology field, and in particular to a kind of to remove metallic compound in waste lubricating oil
Method.
Background technology
China is the big lubricating oil country of consumption in third place in the world for being only second to the U.S. and Russia, annual to consume lubricating oil 600-
More than more than 800 ten thousand tons.With increasing for vehicles number, the growth of lubricating oil consumption figure, vehicle and equipment etc. are changed every year
Waste oil amount surge.If these waste lubricating oils abandoned, high risks will be brought to ecological environment, and cause the energy
Significant wastage.With increasingly reducing for petroleum resources and rising steadily for crude oil price, energy availability and demand is particularly thorny, so useless profit
The recycling of lubricating oil is the Environmental Protection in China realistic problem faced with saving, and is also had attracted increasing attention.
At present, the regeneration technology of domestic waste lubricating oil mainly include distillation-pickling-clay-filtered technique, sedimentation-pickling-
Clay-filtered technique, sedimentation-distillation-pickling-calcium soil process for refining, carclazyte high temperature contact are without acid regeneration process etc.；It is and external useless
Lubricating oil regeneration process mainly develops towards free of contamination Hydrofining Technology direction.In summary, compared with foreign countries, the country is useless
Lubricating oil regeneration process can produce substantial amounts of secondary pollution, and waste oil returns still based on traditional pickling, clay-filtered technique
Yield is low, and quality of reclaimed is not high, thus exploitation pollution is small, the rate of recovery is high, financial cost is low, quality of reclaimed is high it is new again
Raw technique is significant.
The content of the invention
The present invention proposes a kind of method for removing metallic compound in waste lubricating oil, and this method can remove lube cut
In condensed-nuclei aromatics, colloid, the non-ideal composition such as metal so that color, the quality of lube cut all obtain larger improvement,
Follow-up hydro-upgrading processing can be directly carried out, obtained final product is high-grade lube base oil, while is reproduced excellent
The naphtha and diesel oil of matter.
The technical proposal of the invention is realized in this way：
The method of metallic compound, comprises the following steps in a kind of removing waste lubricating oil：
1) pretreatment of waste lubricating oil：Add in ultrasonic oscillator and surpassed after metal remover is mixed with waste lubricating oil
Acoustic shock is swung, and is then centrifuged, and obtains residue and supernatant；
2) atmospheric and vacuum distillation：The supernatant atmospheric and vacuum distillation of step 1) is cut out into 520 DEG C of cuts of ﹤ and 520 DEG C of tail oils of ﹥；
3) hydro-upgrading：By 520 DEG C of cuts of ﹤ by fixed bed carry out hydro-upgrading, its product successively by condensation with it is cold
High score carries out gas-liquid separation, and cold high score bottom liquid enters cold low point progress gas-liquid separation, obtains cold low point of bottom liquid；
4) normal pressure is fractionated：Cold low point of bottom liquid is cut into atmospheric fractional tower, is stone brain at the top of atmospheric fractional tower
Oil, atmospheric fractional tower side line are diesel oil, and atmospheric fractional tower bottom is lube base oil.
Preferably, Hydrobon catalyst and Hydrodewaxing catalyst are contained in the Solid Bed in the step 3), is hydrogenated with
Catalyst for refining and Hydrodewaxing catalyst are according to mass ratio 1:1~0.5 load filling, the reaction temperature 280 of hydro-upgrading~
400 DEG C, 8~15MPa of hydrogen dividing potential drop, hydrogen to oil volume ratio 500~1200:1.
Preferably, the active component of Hydrobon catalyst selects Mo-Ni or Ni-W, and carrier is γ-Al2O3；Hydro dewaxing
Catalyst activity component is precious metals pt-Pd or Mo-Ni, and carrier is ZSM-5 molecular sieve.
Preferably, the active component of Hydrobon catalyst is Mo-Ni, wherein MoO3Load capacity is catalyst>22wt%,
WO3Load capacity is catalyst>27wt%；The active component of Hydrobon catalyst is Ni-W, and wherein NiO load capacity is catalyst
>2wt%, WO3Load capacity is catalyst>27wt%；Hydrodewaxing catalyst active component is precious metals pt-Pd, and wherein Pt is born
Carrying capacity is 0.1~0.8wt% of catalyst, and Pd load capacity is 0.2~0.5wt% of catalyst.
Preferably, the specific method that the metal remover in the step 1) mixes with waste lubricating oil is：Metal remover is matched somebody with somebody
The aqueous solution is made, then adds waste lubricating oil；Ultrasonic vibration condition is：Ultrasound working frequency is 20~120KHz, work(
Rate is 40~4000KW, and temperature is 30~180 DEG C, and processing time is 0.5~4.5h.
Preferably, the mass ratio of metal remover and water is 1:1~8, the addition of metal remover is waste lubricating oil quality
0.5wt%~5.5wt%.
Preferably, the metal remover is oil-soluble acid metal remover, and such metal remover can be effectively by useless lubrication
Metal removal in oil, it is convenient that hydro-upgrading subsequently is carried out to lubricating oil.
Preferably, the residue in the step 1) contains metal remover.
Preferably, the recovery method of the metal remover in the residue is：Washed with solvent naphtha, the de- gold after washing
Category agent, which bakee, turns into regeneration metal remover, and cleaning solution is distilled to recover solvent naphtha.
Preferably, the solvent naphtha is 120# solvent naphthas, and residue is 1 with solvent naphtha mass ratio:1~3, wash time 0.5
~2.5h, after washing terminates, metal remover bakees 30~90min at 150~200 DEG C.
Beneficial effects of the present invention：
1) it is non-to first pass through condensed-nuclei aromatics in metal remover removing lube cut, colloid, metal etc. for method of the invention
Ideal composition so that color, the quality of lube cut all obtain larger improvement, and repeated hydrogenation modifying process, what is obtained is final
Product is high-grade lube base oil, while reproduces high-quality naphtha and diesel oil, and metal remover can be with regeneration cycle
Utilize.
2) present invention process flow is simple, secondary pollution will not be caused to environment, and waste lubricating oil material composition obtains
Utilize to greatest extent, there is great commercial introduction value.
Brief description of the drawings
Fig. 1 is the process chart of the method for metallic compound in removing waste lubricating oil.
Embodiment
Embodiment 1
The method of metallic compound, comprises the following steps in a kind of removing waste lubricating oil：
(1) solution is prepared：By metal remover and water in mass ratio 1:1 mixing, wiring solution-forming, is then added into useless lubrication
In oily raw material；
(2) ultrasonic vibration：Waste lubricating oil raw material containing metal remover enters in ultrasonic oscillation device, ultrasonic wave work frequency
Rate is 120KHz, and power 1000KW, temperature is 100 DEG C, processing time 2.5h, and its product enters centrifugal unit；
(3) centrifuge：Material after ultrasonic vibration enters butterfly centrifugal machine, rotating speed 3000r/min, and centrifugation time is
20min, the slag removed (containing metal remover) is separated with lube cut, centrifugal clear liquid enters distillation unit, and centrifugation is residual
Night carries out metal remover recovery；
(4) atmospheric and vacuum distillation：Centrifugal clear liquid from centrifugal unit enters atmospheric and vacuum distillation unit, cuts out 520 DEG C of ﹤ and evaporates
Point, and most of metal and polar compound are remained in 520 DEG C of tail oils of ﹥, tail oil can use as pitch；
(5) hydro-upgrading：Obtained 520 DEG C of cuts of ﹤ will be distilled hydro-upgrading is carried out by fixed bed, removing heavy aromatics,
Hetero atom and residual metallic, the product that hydro-upgrading obtains are condensed rear into the progress gas-liquid separation of cold high score, cold high score top
Gas is as recycle hydrogen, and for hydrogenation reaction, cold high score bottom liquid enters cold low point progress gas-liquid separation, cold low point of top gas
Body enters pipe network, and cold low point of bottom liquid enters normal pressure fractionation unit, and the reaction condition of hydro-upgrading is：Hydrobon catalyst and
Hydrodewaxing catalyst presses 1:1 ratio is loaded, and 300 DEG C, hydrogen dividing potential drop 12MPa of reaction temperature, combined feed volume space velocity is 1h-1, hydrogen
Oil volume is than 800：1, Hydrobon catalyst Mo-Ni addition are 800 μ g Hydrobon catalysts/g<520 DEG C of cuts, face
Hydrogen pour point depression catalyst Pt-Pd addition is 100 μ g Hydrodewaxing catalysts/g<520 DEG C of cuts.
(6) normal pressure is fractionated：Product after fixed bed hydrogenation modification enters atmospheric fractional tower, is at the top of atmospheric fractional tower
High-quality naphtha product, atmospheric fractional tower side line are high-quality diesel product, and atmospheric fractional tower bottom is high-grade lubricating oil
Base oil；
(7) metal remover regenerates：Centrifugation residue containing metal remover is washed with 120# solvent naphthas, centrifugation is residual
Slag/solvent naphtha mass ratio is 1:1, wash time 2.5h, after washing terminates, metal remover bakees 30min at 200 DEG C, regeneration
Metal remover afterwards is recycled, and cleaning solution is distilled to recover 120# solvent naphthas, and distillation residual tail oil adds 520 DEG C of tail oils of ﹥
It is middle to be used as pitch.
Embodiment 2
The method of metallic compound, comprises the following steps in a kind of removing waste lubricating oil：
(1) solution is prepared：By metal remover and water in mass ratio 1:5 mixing, wiring solution-forming, are then added into useless lubrication
In oily raw material；
(2) ultrasonic vibration：Waste lubricating oil raw material containing metal remover enters in ultrasonic oscillation device, ultrasonic wave work frequency
Rate is 60KHz, and power 1000KW, temperature is 80 DEG C, processing time 1.5h, and its product enters centrifugal unit；
(3) centrifuge：Material after ultrasonic vibration enters butterfly centrifugal machine, rotating speed 3000r/min, and centrifugation time is
20min, the slag removed (containing metal remover) is separated with lube cut, centrifugal clear liquid enters distillation unit, and centrifugation is residual
Night carries out metal remover recovery；
(4) atmospheric and vacuum distillation：Centrifugal clear liquid from centrifugal unit enters atmospheric and vacuum distillation unit, cuts out 520 DEG C of ﹤ and evaporates
Point, and most of metal and polar compound are remained in 520 DEG C of tail oils of ﹥, tail oil can use as pitch；
(5) hydro-upgrading：Obtained 520 DEG C of cuts of ﹤ will be distilled hydro-upgrading is carried out by fixed bed, removing heavy aromatics,
Hetero atom and residual metallic, the product that hydro-upgrading obtains are condensed rear into the progress gas-liquid separation of cold high score, cold high score top
Gas is as recycle hydrogen, and for hydrogenation reaction, cold high score bottom liquid enters cold low point progress gas-liquid separation, cold low point of top gas
Body enters pipe network, and cold low point of bottom liquid enters normal pressure fractionation unit, and the reaction condition of hydro-upgrading is：Hydrobon catalyst and
Hydrodewaxing catalyst presses 1:0.5 ratio is loaded, and 340 DEG C, hydrogen dividing potential drop 10MPa of reaction temperature, combined feed volume space velocity is 1h-1,
Hydrogen to oil volume ratio 600：1, Hydrobon catalyst Ni-W/ γ-Al2O3 addition are 400 μ g Hydrobon catalysts/g<
520 DEG C of cuts, Hydrodewaxing catalyst Pt-Pd/ZSM-5 addition is 200 μ g Hydrodewaxing catalysts/g<520 DEG C of cuts,
Wherein Pt load capacity is 0.15wt%, and Pd load capacity is 0.25wt%.
(6) normal pressure is fractionated：Product after fixed bed hydrogenation modification enters atmospheric fractional tower, is at the top of atmospheric fractional tower
High-quality naphtha product, atmospheric fractional tower side line are high-quality diesel product, and atmospheric fractional tower bottom is high-grade lubricating oil
Base oil；
(7) metal remover regenerates：Centrifugation residue containing metal remover is washed with 120# solvent naphthas, centrifugation is residual
Slag/solvent naphtha mass ratio is 1:2, wash time 1h, after washing terminates, metal remover bakees 60min at 160 DEG C, after regeneration
Metal remover recycled, cleaning solution be distilled to recover 120# solvent naphthas, distillation residual tail oil add 520 DEG C of tail oils of ﹥ in
Used as pitch.
The product performance for the lube base oil that the embodiment of the present invention obtains is shown in Table 1, its raw material waste lubricating oil used
Characteristic is shown in Table 2.
The product performance for the lube base oil that the embodiment of the present invention of table 1 obtains
The product performance for the lube base oil that the embodiment of the present invention of table 2 obtains
As can be seen that the present invention is high to the utilization rate of waste lubricating oil raw material, in waste lubricating oil cut from table 1 and table 2
Metal and polar compound remove substantially completely, prepared lubricating oil is top-grade lubricating oil base oil, while reproduces high-quality stone brain
Oil and fine-quality diesel oil.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (10)
- A kind of 1. method for removing metallic compound in waste lubricating oil, it is characterised in that comprise the following steps：1) pretreatment of waste lubricating oil：Added after metal remover is mixed with waste lubricating oil in ultrasonic oscillator and carry out ultrasonic shake Swing, then centrifuged, obtain residue and supernatant；2) atmospheric and vacuum distillation：The supernatant atmospheric and vacuum distillation of step 1) is cut out into 520 DEG C of cuts of ﹤ and 520 DEG C of tail oils of ﹥；3) hydro-upgrading：520 DEG C of cuts of ﹤ are subjected to hydro-upgrading by fixed bed, its product is successively by condensation and cold high score Gas-liquid separation is carried out, cold high score bottom liquid enters cold low point progress gas-liquid separation, obtains cold low point of bottom liquid；4) normal pressure is fractionated：Cold low point of bottom liquid is cut into atmospheric fractional tower, is naphtha at the top of atmospheric fractional tower, often Pressure fractionating tower side line is diesel oil, and atmospheric fractional tower bottom is lube base oil.
- 2. the method for metallic compound in removing waste lubricating oil according to claim 1, it is characterised in that the step 3) In Solid Bed in contain Hydrobon catalyst and Hydrodewaxing catalyst, Hydrobon catalyst and Hydrodewaxing catalyst According to mass ratio 1:1~0.5 load filling, 280~400 DEG C, 8~15MPa of hydrogen dividing potential drop of the reaction temperature of hydro-upgrading, hydrogen oil body Product ratio 500~1200:1.
- 3. the method for metallic compound in removing waste lubricating oil according to claim 2, it is characterised in that hydrofinishing is urged The active component of agent selects Mo-Ni or Ni-W, and carrier is γ-Al2O3；Hydrodewaxing catalyst active component be precious metals pt- Pd or Mo-Ni, carrier are ZSM-5 molecular sieve.
- 4. the method for metallic compound in removing waste lubricating oil according to claim 3, it is characterised in that hydrofinishing is urged The active component of agent is Mo-Ni, wherein MoO3Load capacity is catalyst>22wt%, WO3Load capacity is catalyst>27wt%； The active component of Hydrobon catalyst is Ni-W, and wherein NiO load capacity is catalyst>2wt%, WO3Load capacity is catalyst> 27wt%；Hydrodewaxing catalyst active component is precious metals pt-Pd, wherein Pt load capacity for catalyst 0.1~ 0.8wt%, Pd load capacity are 0.2~0.5wt% of catalyst.
- 5. the method for metallic compound in removing waste lubricating oil according to claim 1, it is characterised in that the step 1) In the specific method that is mixed with waste lubricating oil of metal remover be：Metal remover is configured to the aqueous solution, then by waste lubricating oil Add；Ultrasonic vibration condition is：Ultrasound working frequency is 20~120KHz, and power is 40~4000KW, temperature is 30~ 180 DEG C, processing time is 0.5~4.5h.
- 6. it is according to claim 5 removing waste lubricating oil in metallic compound method, it is characterised in that metal remover with The mass ratio of water is 1:1~8, the addition of metal remover is 0.5wt%~5.5wt% of waste lubricating oil quality.
- 7. the method for metallic compound in waste lubricating oil is removed according to claim 1 or 5, it is characterised in that described de- Metal agent is oil-soluble acid metal remover.
- 8. the method for metallic compound in removing waste lubricating oil according to claim 1, it is characterised in that the step 1) In residue contain metal remover.
- 9. the method for metallic compound in removing waste lubricating oil according to claim 8, it is characterised in that in the residue The recovery method of metal remover be：Washed with solvent naphtha, the metal remover after washing, which bakee, turns into the de- gold of regeneration Belong to agent, cleaning solution is distilled to recover solvent naphtha.
- 10. the method for metallic compound in removing waste lubricating oil according to claim 9, it is characterised in that the solvent Oil is 120# solvent naphthas, and residue is 1 with solvent naphtha mass ratio:1~3,0.5~2.5h of wash time, after washing terminates, demetalization Agent bakees 30~90min at 150~200 DEG C.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108893184A (en) * | 2018-07-12 | 2018-11-27 | 安徽月娇家具有限公司 | A kind of discarded oil renewal utilizes technique |
| CN109233988A (en) * | 2018-08-06 | 2019-01-18 | 天津大学 | The clean high-valued recycling and reusing method and apparatus of waste lubricating oil |
| CN109679760A (en) * | 2018-12-11 | 2019-04-26 | 中国石油大学(华东) | A kind of pretreated demetalization-centrifugation-extraction combined technical method of waste lubricating oil |
| CN110499186A (en) * | 2019-07-26 | 2019-11-26 | 南京绿帝环保能源科技有限公司 | A kind of waste mineral oil impurity oscillation separator and its separation method |
| CN111607430A (en) * | 2020-07-01 | 2020-09-01 | 湖南利华通环保科技有限公司 | Comprehensive treatment system and method for waste mineral oil |
| CN111621326A (en) * | 2020-07-01 | 2020-09-04 | 湖南利华通环保科技有限公司 | Device and method for purifying waste mineral oil |
| CN115820333A (en) * | 2021-09-17 | 2023-03-21 | 山东大学 | Resource recycling method of waste lubricating oil sludge |
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Application publication date: 20171201 |