Preparation method for basic lubricating oil

A lubricating oil and basic technology, applied in the field of lubricating oil, can solve the problem of reducing the smell of basic lubricating oil, achieve the effects of reducing coking, reducing odor, and preventing local high-temperature cracking

Inactive Publication Date: 2015-08-05
德阳市富可斯润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for regenerating base lubricating oil by utilizing waste engine oil, aiming at the fact that the existing waste engine oil regeneration method cannot produce qualified products. Increased ratio reduces cracking and prevents coking caused by localized overheating

Method used

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  • Preparation method for basic lubricating oil
  • Preparation method for basic lubricating oil
  • Preparation method for basic lubricating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Various lubricating oils that people need can be prepared by adding different preparations to the base lubricating oil.

[0029] A method for preparing a base lubricating oil, specifically using recovered waste engine oil to prepare the base lubricating oil, the specific steps of the method are as follows:

[0030] (1) Pretreatment: add a catalyst to the waste oil separated by settling and stir; put the collected waste engine oil into the premix tank, and first pretreat the waste engine oil in the premix tank, that is, oil-water separation and sludge Metal dust treatment, etc.; the treatment method is to take the catalyst of 3%-8% of the weight of waste engine oil and the water of 3%-10% of the weight of waste engine oil, put the catalyst into the water, mix it evenly with a stirrer, and then put the mixed solution Add to the premix tank and stir, let stand for 12-48 hours.

[0031] (2) Pre-distillation: input the above-mentioned pretreated waste engine oil into the pr...

Embodiment 2

[0037] A method for preparing a base lubricating oil, specifically using recovered waste engine oil to prepare the base lubricating oil, the specific steps of the method are as follows:

[0038] (1) Pretreatment: add a catalyst to the waste oil separated by settling and stir; put the collected waste engine oil into the premix tank, and first pretreat the waste engine oil in the premix tank, that is, oil-water separation and sludge Metal dust treatment, etc.; the treatment method is to take 3% of the catalyst by weight of waste engine oil and water of 10% by weight of waste engine oil, put the catalyst into water, mix evenly with a stirrer, and then add the mixed solution into the premixing tank and stir , let stand for 24 hours.

[0039] (2) Pre-distillation: input the above-mentioned pretreated waste engine oil into the pre-distillation tank, use a vacuum pump to extract the air above the pre-distillation tank, so that the vacuum degree in the pre-distillation tank is 100 Pa,...

Embodiment 3

[0044]Various lubricating oils that people need can be prepared by adding different preparations to the base lubricating oil.

[0045] A method for preparing a base lubricating oil, specifically using recovered waste engine oil to prepare the base lubricating oil, the specific steps of the method are as follows:

[0046] (1) Pretreatment: add a catalyst to the waste oil separated by settling and stir; put the collected waste engine oil into the premix tank, and first pretreat the waste engine oil in the premix tank, that is, oil-water separation and sludge Metal dust treatment, etc.; the treatment method is to take 8% of the catalyst by weight of waste engine oil and water of 10% by weight of waste engine oil, put the catalyst into water, mix evenly with a stirrer, and then add the mixed solution into the pre-mixing tank and stir , let stand for 36 hours.

[0047] (2) Pre-distillation: input the above-mentioned pretreated waste engine oil into the pre-distillation tank, use a...

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Abstract

The invention discloses a preparation method for basic lubricating oil. The preparation method comprises the following concrete steps: (1) pretreatment: a step of adding a catalyst into waste engine oil having undergone settling separation; (2) pre-distillation: a step of inputting the pretreated waste engine oil into a pre-distillation tank, pumping out air in the upper part of the pre-distillation tank and heating the pre-distillation tank by using molten salt; (3) rectification: a step of inputting the pre-distilled waste engine oil into a rectification tank, pumping out air in the upper part of the rectification tank, heating the rectification tank by using molten salt and carrying out stirring, wherein heating temperature is 300 to 400 DEG C; and (4) refining and filtering: a step of adding white earth and successively carrying out stirring and filtering so as to obtain the basic lubricating oil. According to the invention, the component ratio of the basic lubricating oil is increased; local pyrolysis is prevented and coking caused by local overheating is alleviated; and the obtained basic lubricating oil has reduced smell, and energy is saved.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a method for preparing base lubricating oil from waste engine oil. Background technique [0002] Lubricant base oils are refined from crude oil or chemically synthesized. The main production processes of lubricating base oils are: pre-distillation, solvent deasphalting, solvent refining, solvent dewaxing, clay or hydrogenation supplementary refining. At present, a large amount of waste engine oil is produced during the use of various motor vehicles. Some of this part of engine oil is currently discarded in the market, and some recycling companies recycle it, and process it into basic lubricating oil (that is, the semi-finished product of lubricating oil) ). The existing preparation method is to centrally collect the recovered waste oil into the waste oil storage tank for sedimentation and separation, and conduct harmless treatment of the deposited waste residue (sludge,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M175/02C10M101/02
Inventor 黄安斌李元龙肖方春刘佑兵
Owner 德阳市富可斯润滑油有限公司
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