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Method for regenerating waste lubricating oil

A technology for waste lubricating oil and lubricating oil, applied in the field of lubricating oil, can solve problems such as affecting product quality and yield, and impurities generated by cracking of lubricating oil, so as to achieve the effect of improving the yield of lubricating oil and reducing the distillation process.

Inactive Publication Date: 2019-01-29
DONGGUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the waste lubricating oil regeneration process often has more distillation processes, resulting in the cracking of some lubricating oils to produce impurities, which seriously affects the quality and yield of the product, resulting in a product yield that can only reach about 79%.

Method used

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  • Method for regenerating waste lubricating oil
  • Method for regenerating waste lubricating oil
  • Method for regenerating waste lubricating oil

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A method for regenerating waste lubricating oil, comprising the steps of:

[0031] 1) Waste lubricating oil enters the factory: Before the waste lubricating oil enters the factory, the water content of the waste lubricating oil needs to be detected, and the waste lubricating oil with a water content of less than 5% is put into the storage tank, and those that do not meet the requirements are not allowed to enter factory;

[0032] 2) Flocculation and aggregation: add flocculant polymerized ferric chloride into the storage tank, the amount of flocculant added accounts for 1% of the waste lubricating oil, and stir evenly at 60°C for 1 hour;

[0033] 3) Demulsification: add demulsifier polyoxyethylene polyoxypropylene stearyl ether to the flocculation polymer, the amount of demulsifier added accounts for 1% of the waste lubricating oil, and stir evenly at 60°C for 1 hour;

[0034] 4) Stand still: put the waste lubricating oil after demulsification into layers, the standing...

Embodiment 2

[0043] A method for regenerating waste lubricating oil, comprising the steps of:

[0044] 1) Waste lubricating oil enters the factory: Before the waste lubricating oil enters the factory, the water content of the waste lubricating oil needs to be detected, and the waste lubricating oil with a water content of less than 5% is put into the storage tank, and those that do not meet the requirements are not allowed to enter factory;

[0045] 2) Flocculation and aggregation: Add flocculant polymerized ferric chloride into the storage tank, the amount of flocculant added accounts for A% of the waste lubricating oil, and stir evenly at 60°C for 1 hour;

[0046] 3) Demulsification: add demulsifier polyoxyethylene polyoxypropylene stearyl ether to the flocculation polymer, the amount of demulsifier added accounts for 1% of the waste lubricating oil, and stir evenly at 60°C for 1 hour;

[0047] 4) Stand still: put the waste lubricating oil after demulsification into layers, the standing...

Embodiment 3

[0060] A method for regenerating waste lubricating oil, comprising the steps of:

[0061] 1) Waste lubricating oil enters the factory: Before the waste lubricating oil enters the factory, the water content of the waste lubricating oil needs to be detected, and the waste lubricating oil with a water content of less than 5% is put into the storage tank, and those that do not meet the requirements are not allowed to enter factory;

[0062] 2) Flocculation and aggregation: add flocculant polymerized ferric chloride into the storage tank, the amount of flocculant added accounts for 1% of the waste lubricating oil, and stir evenly at 60°C for 1 hour;

[0063] 3) Demulsification: add demulsifier polyoxyethylene polyoxypropylene stearyl ether to the flocculation polymer, the amount of demulsifier added accounts for 1% of the waste lubricating oil, and stir evenly at 60°C for 1 hour;

[0064] 4) Stand still: put the waste lubricating oil after demulsification into layers, the standing...

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Abstract

The invention belongs to the technical field of lubricating oil, and relates to a method for regenerating waste lubricating oil. The method comprises the following steps: 1) feeding waste lubricatingoil into a plant; 2) carrying out flocculation and aggregation; 3) carrying out demulsification; 4) carrying out standing; 5) carrying out heating, 6) carrying out centrifugation; 7) carrying out heating; 8) carrying out acid refining; 9) carrying out alkaline neutralization; 10) carrying out clay refining; and 11) carrying out blending. According to the method disclosed by the invention, the yield of the lubricating oil is increased by reducing a distillation process, and the yield of the lubricating oil is increased to 89%-95%, which is increased by 10-15% compared with a yield in a common regeneration technology, and certain social and economic benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil and relates to a method for regenerating waste lubricating oil. Background technique [0002] When the lubricating oil is used in the corresponding mechanical device, due to some reactions and the long service time of the lubricating oil, the performance of the lubricating oil will be reduced, causing it to age and mixed with impurities, such as: water, iron filings, sludge, etc.; to make the lubricating oil up to If it is less than the corresponding index, it is necessary to replace the lubricating oil with qualified index. [0003] For the treatment of waste lubricating oil, the traditional method generally dumps it directly, because the lubricating oil contains heavy metals, polycyclic aromatic hydrocarbons and other harmful substances, and the waste lubricating oil is difficult to degrade, directly pouring it out will pollute the soil and kill plants and soil If endogenous organisms e...

Claims

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Application Information

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IPC IPC(8): C10M175/00
CPCC10M175/0016C10M175/0025C10M175/0083
Inventor 肖力何楚亮
Owner DONGGUAN UNIV OF TECH
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