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Novel deacidification process for regenerating base oil from waste internal combustion engine oil

A technology for waste internal combustion engine oil and internal combustion engine oil, which is applied in directions such as lubricating compositions to achieve the effects of high reuse rate, reduction of environmental pollution and simple process method

Inactive Publication Date: 2016-01-27
刘楚玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conclusion obtained from the comparative analysis of the existing waste lubricating oil recovery process is that in the existing waste lubricating oil regeneration industry, people are only optimizing the previous process, and no new process has emerged

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A new deacidification process for regenerating base oil from waste internal combustion engine oil includes the following steps:

[0023] (1) Select diethylenetriamine as the deacidification agent, and put the waste internal combustion engine oil and the deacidification agent into a glass reactor at a molar ratio of 1:1;

[0024] (2) Charge N 2 Two minutes

[0025] (3) Set the speed of stirring at 200r / min;

[0026] (4) Set the reaction temperature to 140℃ and the reaction time to 3h;

[0027] (5) After the oil is cooled to room temperature, take it out and let it stand for 12 hours to determine the acid value of the oil.

Embodiment 2

[0029] A new deacidification process for regenerating base oil from waste internal combustion engine oil includes the following steps:

[0030] (1) Select diethylenetriamine as the deacidification agent, and put the waste internal combustion engine oil and the deacidification agent into the glass reactor according to the molar ratio of 1:2;

[0031] (2) Charge N 2 Two minutes

[0032] (3) Set the stirring speed of 300r / min;

[0033] (4) Set the reaction temperature to 160℃, and the reaction time to 4h;

[0034] (5) After the oil is cooled to room temperature, take it out and let it stand for 18 hours to determine the acid value of the oil.

Embodiment 3

[0036] A new deacidification process for regenerating base oil from waste internal combustion engine oil includes the following steps:

[0037] (1) Select diethylenetriamine as the deacidification agent, and put the waste internal combustion engine oil and the deacidification agent into the glass reactor according to the molar ratio of 1:3;

[0038] (2) Charge N 2 Two minutes

[0039] (3) Set the speed of stirring at 400r / min;

[0040] (4) Set the reaction temperature to 180°C and the reaction time to 5h;

[0041] (5) After the oil is cooled to room temperature, take it out and let it stand for 24 hours to determine the acid value of the oil.

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PUM

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Abstract

The invention relates to a novel deacidification process for regenerating base oil from waste internal combustion engine oil, and belongs to the engine oil extraction technology. Diethylenetriamine is firstly selected as a deacidification agent, the waste internal combustion engine oil and diethylenetriamine are placed in a glass reaction still according to the molar ratio of 1:1-3, nitrogen inflation is carried out for two minutes, the stirring speed of 200 r / min to 400 r / min and the reaction temperature of 140 DEG C to 180 DEG C are set, heating is stopped after reacting is carried out for 3 h to 5 h, an oil product is taken out after being cooled to certain temperature, the acid value of the oil product is measured after the oil product stands still for 12 h to 24 h, and the deacidification rate reaches 94.36% to the maximum. According to the process, acid matter in the waste internal combustion engine oil can be effectively taken out, the chroma of the oil product is obviously improved after regeneration, the repeated utilization factor is high, the process method is simple, products obtained after a deacidification reaction are oil additives, separation is not needed, and environmental pollution is reduced.

Description

technical field [0001] The invention relates to a new deacidification process, in particular to a new deacidification process from waste internal combustion engine oil to base oil, and belongs to the technical field of petrochemical industry. Background technique [0002] The current situation of the waste lubricating oil recycling industry in my country is that there are generally hundreds of tons of waste oil recycling plants, and many small factories of several tons have been added, while thousands of tons of factories are rare, and most of the waste oil plants are not It is used for the regeneration of waste oil, but the waste lubricating oil is sold as mold release oil, low-grade oil and fuel oil. my country's GB / T17145-1997 "Technical Guidelines for Recovery and Recycling of Waste Lubricating Oil" promulgated in 1997 played a great role in promoting the development of waste oil regeneration and pollution-free technology in my country. There is no policy support and guid...

Claims

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Application Information

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IPC IPC(8): C10M175/00
Inventor 刘楚玲
Owner 刘楚玲
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