CN104498175A - Regeneration process for waste lubricating oil - Google Patents
Regeneration process for waste lubricating oil Download PDFInfo
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- CN104498175A CN104498175A CN201510001471.9A CN201510001471A CN104498175A CN 104498175 A CN104498175 A CN 104498175A CN 201510001471 A CN201510001471 A CN 201510001471A CN 104498175 A CN104498175 A CN 104498175A
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Abstract
The invention discloses a regeneration process for waste lubricating oil. The process comprises the following steps: (1) pretreatment, namely putting waste lubricating oil into a settling tank, naturally settling, carrying out atmospheric distillation, and removing moisture and mechanical impurities, so as to obtain dewatered oil; (2) reduced pressure distillation, putting the dewatered oil obtained from the step (1) into a vacuum tower, carrying out reduced pressure distillation, and respectively distilling out light basic lubricating oil and intermediate lubricating oil under the conditions that the vacuum degrees are 30-40Pa and 10-15Pa, so as to obtain raw oil; (3) refining, namely adding nano magnesium powder to the raw oil, and reacting at 25-30 DEG C for 3-4 hours under the stirring condition, and carrying out reduced pressure distillation after reaction is ended, so as to obtain refined oil; and (4) retreatment, namely, processing the refined oil obtained from the step (3) with carclazyte, and filtering to obtain basic lubricating oil. The preparation process disclosed by the invention is simple, easy to operate, relatively low in cost, and free of pollution to environment; and the quality of the obtained lubricating oil reaches the national regulation.
Description
Technical field:
The present invention relates to a kind of lubricating oil technology of waste oil regenerating, belong to petrochemical industry.
Background technology:
China is the large lubricating oil country of consumption in third place in the world, and lubricating oil is widely used in automobile industry and industrial production.Particularly due to automobile industry develop rapidly in recent years, along with national income improves, car enters huge numbers of families.Along with the growth of automobile oil consumption, the waste oil amount that vehicle and equipment etc. are changed also increases thereupon.If waste lubricating oil is directly discharged into nature; can cause to environment the destruction that can not recover, so reasonable regenerated lubricating oil, both save the energy; positive effect is served again to the protection of environment, and the regeneration of waste lubricating oil also can produce huge economic benefit.
Therefore and be not suitable for China's national situation at present, the state-of-the-art technology in this field of waste oil regeneration is external hydrogenation regeneration techniques, but due to the dispersion of China oil sources, waste lubricating oil quantity wide in variety is few.At present domestic still adopt have acid regeneration process, its produce waste residue harm very large; Although solvent regeneration process refining effect is good but still there is deficiency, as furfural: dissolving power is little, consumption is large, consume that energy consumption is large, thermostability is poor.
Summary of the invention:
The present invention seeks to, be used for making up the deficiencies in the prior art, and a kind of lubricating oil technology of waste oil regenerating is provided.
To achieve these goals, technical scheme of the present invention is as follows:
A kind of lubricating oil technology of waste oil regenerating, comprises following step:
(1) pre-treatment: lubricating oil waste oil is placed in slurry tank natural subsidence 48-72h under temperature is 80-90 DEG C of condition, carries out air distillation, removes moisture and mechanical impurity obtains dehydrated oil;
(2) underpressure distillation: the dehydrated oil obtained in step (1) is placed in vacuum distillation tower and carries out underpressure distillation, light lubricating oil base oil and middle matter lubricating oil is distilled out, i.e. raw oil respectively under vacuum tightness is 30-40Pa condition He under 10-15Pa condition;
(3) refining: in raw oil, to add nanometer Mg powder, under temperature is 25-30 DEG C and the condition that stirs, reacts 3-4h, has reacted rear underpressure distillation and obtained treated oil;
(4) reprocessing: treated oil step (3) obtained adopts clay treatment, obtains lubricant base after filtration.
Described a kind of lubricating oil technology of waste oil regenerating, the add-on of nanometer Mg powder is the 0.5-1.5% of raw oil weight.
Described a kind of lubricating oil technology of waste oil regenerating, the add-on of carclazyte is the 1-2% of treated oil weight.
According to the lubricating oil that described lubricating oil technology of waste oil regenerating obtains.
Beneficial effect of the present invention is as follows:
Preparation technology of the present invention removes moisture and mechanical impurity by pre-treatment, raw oil is obtained again by underpressure distillation, by adding nanometer Mg powder, the part of deterioration by oxidation in reduction raw oil, thus play refining effect, finally by bleaching earth adsorption, remove impurity residual in oil, thus complete reclaiming process.Preparation technology of the present invention is simple, and easy to operate, cost is lower, environmentally safe, and the quality of lubrication oil obtained reaches national regulation.
Embodiment:
The technique means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the present invention further.
Embodiment 1
In the present embodiment, a kind of lubricating oil technology of waste oil regenerating, comprises following step:
(1) pre-treatment: lubricating oil waste oil is placed in slurry tank natural subsidence 48h under temperature is 90 DEG C of conditions, carries out air distillation, removes moisture and mechanical impurity obtains dehydrated oil;
(2) underpressure distillation: the dehydrated oil obtained in step (1) is placed in vacuum distillation tower and carries out underpressure distillation, distills out light lubricating oil base oil and middle matter lubricating oil, i.e. raw oil respectively under vacuum tightness is 40Pa condition He under 15Pa condition;
(3) refining: in raw oil, to add nanometer Mg powder, under temperature is 30 DEG C and the condition that stirs, reacts 4h, has reacted rear underpressure distillation and obtained treated oil;
(4) reprocessing: treated oil step (3) obtained adopts clay treatment, obtains lubricant base after filtration.
Wherein, the add-on of nanometer Mg powder is 0.5% of raw oil weight.The add-on of carclazyte is 2% of treated oil weight.
Embodiment 2
In the present embodiment, a kind of lubricating oil technology of waste oil regenerating, comprises following step:
(1) pre-treatment: lubricating oil waste oil is placed in slurry tank natural subsidence 72h under temperature is 80 DEG C of conditions, carries out air distillation, removes moisture and mechanical impurity obtains dehydrated oil;
(2) underpressure distillation: the dehydrated oil obtained in step (1) is placed in vacuum distillation tower and carries out underpressure distillation, distills out light lubricating oil base oil and middle matter lubricating oil, i.e. raw oil respectively under vacuum tightness is 30Pa condition He under 10Pa condition;
(3) refining: in raw oil, to add nanometer Mg powder, under temperature is 25 DEG C and the condition that stirs, reacts 3h, has reacted rear underpressure distillation and obtained treated oil;
(4) reprocessing: treated oil step (3) obtained adopts clay treatment, obtains lubricant base after filtration.
Wherein, the add-on of nanometer Mg powder is 1.5% of raw oil weight.The add-on of carclazyte is 1% of treated oil weight.
Embodiment 3
In the present embodiment, a kind of lubricating oil technology of waste oil regenerating, comprises following step:
(1) pre-treatment: lubricating oil waste oil is placed in slurry tank natural subsidence 50h under temperature is 85 DEG C of conditions, carries out air distillation, removes moisture and mechanical impurity obtains dehydrated oil;
(2) underpressure distillation: the dehydrated oil obtained in step (1) is placed in vacuum distillation tower and carries out underpressure distillation, distills out light lubricating oil base oil and middle matter lubricating oil, i.e. raw oil respectively under vacuum tightness is 35Pa condition He under 12Pa condition;
(3) refining: in raw oil, to add nanometer Mg powder, under temperature is 25 DEG C and the condition that stirs, reacts 4h, has reacted rear underpressure distillation and obtained treated oil;
(4) reprocessing: treated oil step (3) obtained adopts clay treatment, obtains lubricant base after filtration.
Wherein, the add-on of nanometer Mg powder is 1.2% of raw oil weight.The add-on of carclazyte is 1.2% of treated oil weight.
Embodiment 4
In the present embodiment, a kind of lubricating oil technology of waste oil regenerating, comprises following step:
(1) pre-treatment: lubricating oil waste oil is placed in slurry tank natural subsidence 60h under temperature is 90 DEG C of conditions, carries out air distillation, removes moisture and mechanical impurity obtains dehydrated oil;
(2) underpressure distillation: the dehydrated oil obtained in step (1) is placed in vacuum distillation tower and carries out underpressure distillation, distills out light lubricating oil base oil and middle matter lubricating oil, i.e. raw oil respectively under vacuum tightness is 30Pa condition He under 10Pa condition;
(3) refining: in raw oil, to add nanometer Mg powder, under temperature is 30 DEG C and the condition that stirs, reacts 3h, has reacted rear underpressure distillation and obtained treated oil;
(4) reprocessing: treated oil step (3) obtained adopts clay treatment, obtains lubricant base after filtration.
Wherein, the add-on of nanometer Mg powder is 0.9% of raw oil weight.The add-on of carclazyte is 1.5% of treated oil weight.
Embodiment 5
In the present embodiment, a kind of lubricating oil technology of waste oil regenerating, comprises following step:
(1) pre-treatment: lubricating oil waste oil is placed in slurry tank natural subsidence 65h under temperature is 80 DEG C of conditions, carries out air distillation, removes moisture and mechanical impurity obtains dehydrated oil;
(2) underpressure distillation: the dehydrated oil obtained in step (1) is placed in vacuum distillation tower and carries out underpressure distillation, distills out light lubricating oil base oil and middle matter lubricating oil, i.e. raw oil respectively under vacuum tightness is 40Pa condition He under 10Pa condition;
(3) refining: in raw oil, to add nanometer Mg powder, under temperature is 30 DEG C and the condition that stirs, reacts 4h, has reacted rear underpressure distillation and obtained treated oil;
(4) reprocessing: treated oil step (3) obtained adopts clay treatment, obtains lubricant base after filtration.
Wherein, the add-on of nanometer Mg powder is 0.7% of raw oil weight.The add-on of carclazyte is 1.4% of treated oil weight.
Claims (4)
1. a lubricating oil technology of waste oil regenerating, is characterized in that, comprises following step:
(1) pre-treatment: lubricating oil waste oil is placed in slurry tank natural subsidence 48-72h under temperature is 80-90 DEG C of condition, carries out air distillation, removes moisture and mechanical impurity obtains dehydrated oil;
(2) underpressure distillation: the dehydrated oil obtained in step (1) is placed in vacuum distillation tower and carries out underpressure distillation, light lubricating oil base oil and middle matter lubricating oil is distilled out, i.e. raw oil respectively under vacuum tightness is 30-40Pa condition He under 10-15Pa condition;
(3) refining: in raw oil, to add nanometer Mg powder, under temperature is 25-30 DEG C and the condition that stirs, reacts 3-4h, has reacted rear underpressure distillation and obtained treated oil;
(4) reprocessing: treated oil step (3) obtained adopts clay treatment, obtains lubricant base after filtration.
2. a kind of lubricating oil technology of waste oil regenerating according to claim 1, is characterized in that, the add-on of nanometer Mg powder is the 0.5-1.5% of raw oil weight.
3. a kind of lubricating oil technology of waste oil regenerating according to claim 1, is characterized in that, the add-on of carclazyte is the 1-2% of treated oil weight.
4. the lubricating oil that the lubricating oil technology of waste oil regenerating according to above arbitrary claim obtains.
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| CN201510001471.9A CN104498175A (en) | 2015-01-04 | 2015-01-04 | Regeneration process for waste lubricating oil |
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| CN201510001471.9A CN104498175A (en) | 2015-01-04 | 2015-01-04 | Regeneration process for waste lubricating oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746751A (en) * | 2017-11-07 | 2018-03-02 | 成都新柯力化工科技有限公司 | A kind of method of clean environment firendly thickening separation and recovery waste oil |
| CN108949334A (en) * | 2018-07-20 | 2018-12-07 | 白鹰 | A kind for the treatment of process and its processing system of waste lubricating oil filtration, purification |
| CN109233989A (en) * | 2018-10-30 | 2019-01-18 | 上海天汉环境资源有限公司 | A kind of waste lubricant oil regeneration system and regeneration technology and its decolorising agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092585A (en) * | 2006-06-19 | 2007-12-26 | 北京耀锋技术开发中心 | Process engineering for regenerating deposed lubricating oil |
| CN103254410A (en) * | 2013-06-03 | 2013-08-21 | 北京理工大学 | Preparation method of high-molecular-weight polylactic acid based on metal powder dehydrating agent |
-
2015
- 2015-01-04 CN CN201510001471.9A patent/CN104498175A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092585A (en) * | 2006-06-19 | 2007-12-26 | 北京耀锋技术开发中心 | Process engineering for regenerating deposed lubricating oil |
| CN103254410A (en) * | 2013-06-03 | 2013-08-21 | 北京理工大学 | Preparation method of high-molecular-weight polylactic acid based on metal powder dehydrating agent |
Non-Patent Citations (1)
| Title |
|---|
| 《废润滑油再生》;戴钧樑;《废润滑油再生》;中国石化出版社;19990331;第255-259页 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746751A (en) * | 2017-11-07 | 2018-03-02 | 成都新柯力化工科技有限公司 | A kind of method of clean environment firendly thickening separation and recovery waste oil |
| CN107746751B (en) * | 2017-11-07 | 2021-07-02 | 东营争峰新能源技术有限公司 | Method for cleaning, environment-friendly, tackifying, separating and recycling waste oil |
| CN108949334A (en) * | 2018-07-20 | 2018-12-07 | 白鹰 | A kind for the treatment of process and its processing system of waste lubricating oil filtration, purification |
| CN109233989A (en) * | 2018-10-30 | 2019-01-18 | 上海天汉环境资源有限公司 | A kind of waste lubricant oil regeneration system and regeneration technology and its decolorising agent |
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Application publication date: 20150408 |