CN107513458A - The refined renovation process of waste lubricating oil - Google Patents

The refined renovation process of waste lubricating oil Download PDF

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Publication number
CN107513458A
CN107513458A CN201710790385.XA CN201710790385A CN107513458A CN 107513458 A CN107513458 A CN 107513458A CN 201710790385 A CN201710790385 A CN 201710790385A CN 107513458 A CN107513458 A CN 107513458A
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CN
China
Prior art keywords
lubricating oil
refined
waste lubricating
renovation process
mass ratio
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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.)
Pending
Application number
CN201710790385.XA
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Chinese (zh)
Inventor
刘志鸿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Chuandian Electrical Machinery Co Ltd
Original Assignee
Jiangsu Chuandian Electrical Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Chuandian Electrical Machinery Co Ltd filed Critical Jiangsu Chuandian Electrical Machinery Co Ltd
Priority to CN201710790385.XA priority Critical patent/CN107513458A/en
Publication of CN107513458A publication Critical patent/CN107513458A/en
Pending legal-status Critical Current

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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
    • 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
    • C10M175/0008—Working-up used lubricants to recover useful products ; Cleaning with the use of adsorbentia
    • 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
    • C10M175/0058—Working-up used lubricants to recover useful products ; Cleaning by filtration and centrifugation processes; apparatus 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
    • C10M175/0083—Lubricating greases

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  • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lubricants (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a kind of refined renovation process of waste lubricating oil, comprise the following steps：(1) flocculant is added into waste lubricating oil, is centrifuged after stirring, collects upper strata fluid；(2) the upper strata fluid for collecting step (1) introduces vacuum tower, and distillation takes 220 350 DEG C of cut；(3) solvent is added into step (2) cut, the solvent is mass ratio 35：1 dimethyl sulfoxide (DMSO) and N, N dimethylformamide, 20 30min are refined at 100 110 DEG C.In the refined renovation process of the waste lubricating oil of the application, impurity is removed using composite flocculation agent first, then refined using double solvents, gained reclaimed lubricating oily yield reaches more than 90%, and quality is good, fully meets lube base oil HVI105 standards.

Description

The refined renovation process of waste lubricating oil
Technical field
The invention belongs to Lubricating Oil Technique, the refined renovation process of particularly a kind of waste lubricating oil.
Background technology
Lubricating oil in use for some time, the meeting such as the metal impurities that are brought in the oxidation and environment due to itself, moisture Make the function reduction of lubricating oil, must just be changed after reaching to a certain degree, the oil changed just turns into waste lubricating oil.And useless profit More than 96% is lube base oil in lubricating oil, mechanical admixture, moisture, colloid, asphalitine, oxygenatedchemicals and sulfur-containing compound 1~2.5% is only accounted for Deng impurity.Therefore, the problem of these waste lubricating oils are increasingly paid close attention to as people how is handled.
The content of the invention
For drawbacks described above of the prior art, this application provides one kind is simple to operate, yield is high, the measured useless profit of matter The refined renovation process of lubricating oil.
Technical scheme：A kind of refined renovation process of waste lubricating oil of the present invention, comprises the following steps：
(1) flocculant is added into waste lubricating oil, is centrifuged after stirring, collects upper strata fluid；
(2) the upper strata fluid for collecting step (1) introduces vacuum tower, and distillation takes 220-350 DEG C of cut；
(3) solvent is added into step (2) cut, the solvent is mass ratio 3-5：1 dimethyl sulfoxide (DMSO) and N, N- bis- NMF, 20-30min is refined at 100-110 DEG C.
In step (1), the flocculant is that mass ratio is 1-3：2-5：1-3 sulfonate anionic surfactant, gather Oxygen ethylene type nonionic surfactant and Mg2+。
Preferably, in step (1), the flocculant is that mass ratio is 2：5：2 sulfonate anionic surfactant, gather Oxygen ethylene type nonionic surfactant and Mg2+。
In step (1), the mass ratio of the waste lubricating oil and flocculant is 2-5：1.
Preferably, in step (1), the mass ratio of the waste lubricating oil and flocculant is 3-5：1.
Most preferably, in step (1), the mass ratio of the waste lubricating oil and flocculant is 4：1.
In step (1), flocculant is added into waste lubricating oil, is stirred at 35 DEG C~45 DEG C with 1000-1500r/min 15-30min, 10-20min is then centrifuged with 5500-6500r/min.
Preferably, in step (1), flocculant is added into waste lubricating oil, 30min is stirred with 1200r/min at 40 DEG C, Then 20min is centrifuged with 6500r/min.
In step (3), the volume ratio of the cut and solvent is 1:1-2.It is preferred that 1:1.2.
Preferably, in step (3), the solvent is mass ratio 3.5：1 dimethyl sulfoxide (DMSO) (DMSO) and N, N- dimethyl Formamide (DMF).
In step (3), the mass fraction of the dimethyl sulfoxide (DMSO) is 15-20%, the matter of the DMF Amount fraction is 8-12%.
Beneficial effect：In the refined renovation process of the waste lubricating oil of the application, impurity is removed using composite flocculation agent first, Then refined using double solvents, gained reclaimed lubricating oily yield reaches more than 90%, and quality is good, fully meets profit Lubricant base oil HVI105 standards.
Embodiment
The application is explained in detail with reference to specific embodiment.
Embodiment 1
A kind of refined renovation process of waste lubricating oil, comprises the following steps：
(1) flocculant is added into waste lubricating oil, 30min is stirred with 1200r/min at 40 DEG C, then with 6500r/ Min centrifuges 20min, collects upper strata fluid；
(2) the upper strata fluid for collecting step (1) introduces vacuum tower, and distillation takes 220-350 DEG C of cut；
(3) solvent is added into step (2) cut, wherein, the volume ratio of the cut and solvent is 1:1.2；It is described molten Agent is mass ratio 3.5：1 dimethyl sulfoxide (DMSO) and DMF, 25min is refined at 110 DEG C.
In step (1), flocculant is that mass ratio is 2：5：2 sulfonate anionic surfactant, polyoxyethylene-type are non- Ionic surface active agent and Mg2+；The mass ratio of waste lubricating oil and flocculant is 4：1；
In step (3), the mass fraction of dimethyl sulfoxide (DMSO) is 16%, and the mass fraction of DMF is 10%.
The yield of gained reclaimed oil is 92.3%, and Viscosity Index 132, condensation point is -21.4 DEG C, and sulfur nutrient is 0.0482%, carbon residue 0.561%, index of refraction 1.4564, colourity 2.0, flash-point is 215 DEG C, and 20 DEG C of density are 0.8455kg/ m3, meet lube base oil HVI105 standards.
Embodiment 2
A kind of refined renovation process of waste lubricating oil, comprises the following steps：
(1) flocculant is added into waste lubricating oil, 15min is stirred with 1000r/min at 35 DEG C, then with 5500r/ Min centrifuges 10min, collects upper strata fluid；
(2) the upper strata fluid for collecting step (1) introduces vacuum tower, and distillation takes 220-350 DEG C of cut；
(3) solvent is added into step (2) cut, wherein, the volume ratio of the cut and solvent is 1:1；The solvent For mass ratio 5：1 dimethyl sulfoxide (DMSO) and DMF, 30min is refined at 100 DEG C.
In step (1), flocculant is that mass ratio is 1：2：1 sulfonate anionic surfactant, polyoxyethylene-type are non- Ionic surface active agent and Mg2+；The mass ratio of waste lubricating oil and flocculant is 2：1.
In step (3), the mass fraction of dimethyl sulfoxide (DMSO) is 20%, and the mass fraction of the DMF is 12%.
The yield of gained reclaimed oil is 91%, and quality meets lube base oil HVI105 standards.
Embodiment 3
A kind of refined renovation process of waste lubricating oil, comprises the following steps：
(1) flocculant is added into waste lubricating oil, 30min is stirred with 1500r/min at 45 DEG C, then with 6500r/ Min centrifuges 20min, collects upper strata fluid；
(2) the upper strata fluid for collecting step (1) introduces vacuum tower, and distillation takes 220-350 DEG C of cut；
(3) solvent is added into step (2) cut, wherein, the volume ratio of the cut and solvent is 1:2；The solvent For mass ratio 3：1 dimethyl sulfoxide (DMSO) and DMF, 20min is refined at 110 DEG C.
In step (1), flocculant is that mass ratio is 3：5：1 sulfonate anionic surfactant, polyoxyethylene-type are non- Ionic surface active agent and Mg2+；The mass ratio of waste lubricating oil and flocculant is 5：1.
In step (3), the mass fraction of dimethyl sulfoxide (DMSO) is 15%, and the mass fraction of the DMF is 8%.
The yield of gained reclaimed oil is 92.5%, and quality meets lube base oil HVI105 standards.

Claims (9)

1. the refined renovation process of a kind of waste lubricating oil, it is characterised in that comprise the following steps：
(1) flocculant is added into waste lubricating oil, is centrifuged after stirring, collects upper strata fluid；
(2) the upper strata fluid for collecting step (1) introduces vacuum tower, and distillation takes 220-350 DEG C of cut；
(3) solvent is added into step (2) cut, the solvent is mass ratio 3-5：1 dimethyl sulfoxide (DMSO) and N, N- dimethyl Formamide, 20-30min is refined at 100-110 DEG C.
2. the refined renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), the flocculation Agent is that mass ratio is 1-3：2-5：1-3 sulfonate anionic surfactant, Determination of Polyoxyethylene Non-ionic Surfactants and Mg2+。
3. the refined renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), the flocculation Agent is that mass ratio is 2：5：2 sulfonate anionic surfactant, Determination of Polyoxyethylene Non-ionic Surfactants and Mg2+。
4. the refined renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), the useless profit The mass ratio of lubricating oil and flocculant is 2-5：1.
5. the refined renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), the useless profit The mass ratio of lubricating oil and flocculant is 3-5：1.
6. the refined renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), to useless lubrication Flocculant is added in oil, 15-30min is stirred with 1000-1500r/min at 35 DEG C~45 DEG C, then with 5500-6500r/ Min centrifuges 10-20min.
7. the refined renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (3), the cut Volume ratio with solvent is 1:1-2.
8. the refined renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (3), the solvent For mass ratio 3.5：1 dimethyl sulfoxide (DMSO) (DMSO), N,N-dimethylformamide (DMF).
9. the refined renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (3), the diformazan The mass fraction of base sulfoxide is 15-20%, and the mass fraction of the DMF is 8-12%.
CN201710790385.XA 2017-09-05 2017-09-05 The refined renovation process of waste lubricating oil Pending CN107513458A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112574776A (en) * 2020-11-09 2021-03-30 东莞市新东欣环保投资有限公司 Refining process of regenerated crude oil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639229A (en) * 1970-06-29 1972-02-01 Exxon Research Engineering Co Refining of used lubricating oils
CN102604732A (en) * 2012-02-14 2012-07-25 安徽国孚润滑油工业有限公司 Static mixed rotational flow separation and extraction process of regenerative base oil N-methyl pyrrolidone
CN106336939A (en) * 2016-08-29 2017-01-18 济南亿诺再生资源有限公司 Refining technique of base oil regenerated from used lubrication oil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639229A (en) * 1970-06-29 1972-02-01 Exxon Research Engineering Co Refining of used lubricating oils
CN102604732A (en) * 2012-02-14 2012-07-25 安徽国孚润滑油工业有限公司 Static mixed rotational flow separation and extraction process of regenerative base oil N-methyl pyrrolidone
CN106336939A (en) * 2016-08-29 2017-01-18 济南亿诺再生资源有限公司 Refining technique of base oil regenerated from used lubrication oil

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张圣领等: "废润滑油絮凝-吸附再生工艺的研究", 《化学世界》 *
杨茜雯等: "复合溶剂精制再生废润滑油的研究", 《现代化工》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112574776A (en) * 2020-11-09 2021-03-30 东莞市新东欣环保投资有限公司 Refining process of regenerated crude oil

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Effective date of abandoning: 20200904