CN107400556A - The renovation process of waste lubricating oil - Google Patents
The renovation process of waste lubricating oil Download PDFInfo
- Publication number
- CN107400556A CN107400556A CN201710800640.4A CN201710800640A CN107400556A CN 107400556 A CN107400556 A CN 107400556A CN 201710800640 A CN201710800640 A CN 201710800640A CN 107400556 A CN107400556 A CN 107400556A
- Authority
- CN
- China
- Prior art keywords
- lubricating oil
- waste lubricating
- renovation process
- flocculant
- mass ratio
- 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.)
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Classifications
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- 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
- C10M175/0083—Lubricating greases
Abstract
The invention discloses a kind of 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 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
Technical field
The invention belongs to Lubricating Oil Technique, particularly a kind of renovation process 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 renovation process of lubricating oil.
Technical scheme：A kind of 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 n-butanol, isopropanol and Mg2+。
In step (1), the flocculant is that mass ratio is 2：2：1 n-butanol, isopropanol 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 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 lubricating oil
Base oil HVI105 standards.
Embodiment
The application is explained in detail with reference to specific embodiment.
Embodiment 1
A kind of 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 2：2：1 n-butanol, isopropanol and Mg2+；Waste lubricating oil and flocculant
Mass ratio be 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 93%, and Viscosity Index 140, condensation point is -21.8 DEG C, and sulfur nutrient is
0.0582%, carbon residue 0.541%, index of refraction 1.4464, colourity 2.0, flash-point is 218 DEG C, and 20 DEG C of density are 0.8655kg/
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 1:2:3 n-butanol, isopropanol and Mg2+；Waste lubricating oil and flocculant
Mass ratio be 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 91.5%, 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 n-butanol, isopropanol and Mg2+；Waste lubricating oil and flocculant
Mass ratio be 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 92.2%, and quality meets lube base oil HVI105 standards.
Claims (9)
1. a kind of renovation process 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 renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), the flocculant is
Mass ratio is 1-3：2-5：1-3 n-butanol, isopropanol and Mg2+。
3. the renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), the flocculant is
Mass ratio is 2：2：1 n-butanol, isopropanol and Mg2+。
4. the renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), the waste lubricating oil
Mass ratio with flocculant is 2-5：1.
5. the renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), the waste lubricating oil
Mass ratio with flocculant is 3-5：1.
6. the renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (1), into waste lubricating oil
Add flocculant, at 35 DEG C~45 DEG C with 1000-1500r/min stir 15-30min, then with 5500-6500r/min from
Heart 10-20min.
7. the renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (3), the cut and molten
The volume ratio of agent is 1:1-2.
8. the renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (3), the solvent is matter
Measure ratio 3.5：1 dimethyl sulfoxide (DMSO) (DMSO), N,N-dimethylformamide (DMF).
9. the renovation process of waste lubricating oil according to claim 1, it is characterised in that in step (3), the dimethyl is sub-
The mass fraction of sulfone is 15-20%, and the mass fraction of the DMF is 8-12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710800640.4A CN107400556A (en) | 2017-09-05 | 2017-09-05 | The renovation process of waste lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710800640.4A CN107400556A (en) | 2017-09-05 | 2017-09-05 | The renovation process of waste lubricating oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107400556A true CN107400556A (en) | 2017-11-28 |
Family
ID=60398295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710800640.4A Pending CN107400556A (en) | 2017-09-05 | 2017-09-05 | The renovation process of waste lubricating oil |
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| CN (1) | CN107400556A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880999A (en) * | 2017-12-22 | 2018-04-06 | 常州菲纳斯能源科技有限公司 | The renovation process of waste lubricating oil |
| CN108085121A (en) * | 2017-12-22 | 2018-05-29 | 常州菲纳斯能源科技有限公司 | Waste lubricant oil regeneration and the processing method for recycling aromatic hydrocarbons |
Citations (3)
| 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 |
-
2017
- 2017-09-05 CN CN201710800640.4A patent/CN107400556A/en active Pending
Patent Citations (3)
| 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)
| Title |
|---|
| 戴钧樑: "《废润滑油再生》", 31 March 1999, 中国石化出版社 * |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880999A (en) * | 2017-12-22 | 2018-04-06 | 常州菲纳斯能源科技有限公司 | The renovation process of waste lubricating oil |
| CN108085121A (en) * | 2017-12-22 | 2018-05-29 | 常州菲纳斯能源科技有限公司 | Waste lubricant oil regeneration and the processing method for recycling aromatic hydrocarbons |
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| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20201120 |