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Recycled lubricating oil regeneration technology

A lubricating oil and process technology, applied in the field of recycling lubricating oil regeneration process, can solve problems such as the impact of the service life of regenerated oil, unclean removal of impurities, wear of mechanical parts, etc., to reduce pollution and corrosion, reduce material consumption, and improve contact Effect

Inactive Publication Date: 2017-01-11
刘雁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The removal of impurities and decolorization is very important in the regeneration process of lubricating oil. The removal of impurities is not clean. The impurities in the regenerated lubricating oil will lead to the decline of oil quality. The wear of mechanical parts will be serious during use, and the service life of the regenerated oil will also be seriously affected.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add the recovered lubricating oil into the reaction kettle, heat to 100°C until no water vapor emerges, and separate the impurities at the bottom;

[0029] Cool to 85°C, add 98% concentrated sulfuric acid to the reaction kettle at a rate of 0.8L / min, the mass ratio of concentrated sulfuric acid and recovered lubricating oil is 6:100, stir for 35 minutes after adding concentrated sulfuric acid;

[0030] Add sodium hydroxide into the reaction kettle, and neutralize until the acid value of the oil is ≤0.35mg / g;

[0031] After raising the temperature to 95°C, add the active composition under stirring, keep it warm for 90 minutes, and condense and recover the evaporated fraction as a gasoline additive; raise the temperature to 160°C, stop stirring under heat preservation, let stand for 90 minutes, and condense and recover the evaporated fraction It is used as a gasoline additive; the temperature is lowered to 70°C, and the recycled oil lubricating oil is obtained after filte...

Embodiment 2

[0033] Add the recovered lubricating oil into the reaction kettle, heat to 100°C until no water vapor emerges, and separate the impurities at the bottom;

[0034] Cool to 85°C, add 98% concentrated sulfuric acid to the reaction kettle at a rate of 0.8L / min, the mass ratio of concentrated sulfuric acid and recovered lubricating oil is 6:100, stir for 35 minutes after adding concentrated sulfuric acid;

[0035] Add sodium hydroxide into the reaction kettle, and neutralize until the acid value of the oil is ≤0.35mg / g;

[0036] After raising the temperature to 95°C, add the active composition under stirring, keep it warm for 90 minutes, and condense and recover the evaporated fraction as a gasoline additive; raise the temperature to 160°C, stop stirring under heat preservation, let stand for 90 minutes, and condense and recover the evaporated fraction It is used as a gasoline additive; the temperature is lowered to 70°C, and the regenerated oil lubricating oil is obtained after fi...

Embodiment 3

[0038] Add the recovered lubricating oil into the reaction kettle, heat to 100°C until no water vapor emerges, and separate the impurities at the bottom;

[0039] Cool to 85°C, add 98% concentrated sulfuric acid to the reaction kettle at a rate of 0.8L / min, the mass ratio of concentrated sulfuric acid and recovered lubricating oil is 6:100, stir for 35 minutes after adding concentrated sulfuric acid;

[0040] Add sodium hydroxide into the reaction kettle, and neutralize until the acid value of the oil is ≤0.35mg / g;

[0041] After raising the temperature to 95°C, add the active composition under stirring, keep it warm for 90 minutes, and condense and recover the evaporated fraction as a gasoline additive; raise the temperature to 160°C, stop stirring under heat preservation, let stand for 90 minutes, and condense and recover the evaporated fraction It is used as a gasoline additive; the temperature is lowered to 70°C, and the recycled oil lubricating oil is obtained after filte...

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PUM

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Abstract

The invention relates to recycled lubricating oil regeneration technology. The technology comprises the steps of infusing recycled lubricating oil in reaction kettle and heating it to 100-120oC till it emits no vapor, cooling it to 70-90oC, infusing oil of vitriol or oleum at some quality ratio at velocity of 0.5-1.5L / min and stirring it for 25-50min, slowly infusing alkali in pickled lubricating oil, neutralizing it till acid value of oil<=0.35mg / g, infusing active composition in temperature of 90-100oC, removing impurity, color and minor water to get regenerating oil. The method, by adding dispersing agent, reduces clay viscosity, prevents adhesion of clay particles, and reduces acid consumption and water consumption in washing.

Description

technical field [0001] The invention relates to a recycling lubricating oil regeneration process. Background technique [0002] At present, lubricating oil treatment is divided into three treatment methods: discarding, through-way oilization, and regeneration. Both disposal and through-way oilization have the problem of polluting the soil, and regenerating lubricating oil can save energy and protect the environment. [0003] The removal of impurities and decolorization is very important in the regeneration process of lubricating oil. If the removal of impurities is not clean, the impurities in the regenerated lubricating oil will lead to the decline of oil quality. The wear of mechanical parts will be serious during use, and the service life of the regenerated oil will also be seriously affected. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a recycling lubricating oil regeneration process. First, the recycled...

Claims

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Application Information

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IPC IPC(8): C10M175/00
CPCC10M175/0008C10M175/0016C10M175/0033C10M175/0083
Inventor 刘雁
Owner 刘雁
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