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Production of diesel oil by waste lube oil

A technology for waste lubricating oil and diesel oil, applied in lubricating compositions, petroleum industry, hydrocarbon distillation and other directions, can solve problems such as environmental pollution, and achieve the effects of solving pollution, high recovery rate and simple production method

Inactive Publication Date: 2007-09-05
隋日忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for producing diesel oil from waste lubricating oil, which can not only make full use of the resources of safe engine oil, turn waste into treasure, but also improve the problem of environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Take 1000kg of waste lubricating oil and put it into a distillation kettle, carry out heating and distillation, add 0.8% of waste lubricating oil weight mordenite as a catalyst in the distillation tower at the same time, control the heating temperature at 150°C, obtain 500kg of distillate, add it to the mixer and add 5kg of industrial sulfuric acid, 460kg of supernatant was obtained, and then the supernatant was added into the blender, and 4.6kg of sodium hydroxide was formulated into a 30% aqueous solution and added into the blender, stirred for 2 hours and then left to stand for 3 hours, the resulting supernatant The liquid is the obtained diesel oil.

Embodiment 2

[0010] Get 1000kg of waste lubricating oil and pack it into a still, carry out heating and distillation, add mordenite with 1% of the weight of waste lubricating oil as a catalyst, and control the heating temperature at 280°C to obtain 800kg of distillate, add it to a mixer and add 6.6kg of industrial sulfuric acid, Obtain supernatant 500kg, then supernatant is added in the blender, simultaneously 6kg sodium hydroxide is mixed with the aqueous solution of 30% concentration and adds in the blender, after stirring for 2.5 hours, leave standstill for 4 hours, gained supernatant is obtained of diesel.

Embodiment 3

[0012] Get 1000kg of waste lubricating oil and put it into a still, carry out heating and distillation, add mordenite with 1.5% weight of waste lubricating oil as a catalyst, and control the heating temperature at 360°C to obtain 600kg of distillate, add it to a mixer and add 9kg of industrial sulfuric acid to obtain Supernatant 540kg, then supernatant is added in the blender, 8kg sodium hydroxide is mixed with the aqueous solution of 30% concentration simultaneously and added in the blender, after stirring for 3 hours, let it stand for 5 hours, the gained supernatant is the prepared diesel fuel.

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PUM

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Abstract

Production of diesel oil from waste lube oil is carried out by putting waste lube oil into distillation still, heat distilling, adding flokite 0.5-2wt% of lube oil into distilling tower as catalyst, controlling distilling temperature between 125-380degree, first distilling to obtain distilland, putting it into agitator, adding into commercial sulphuric acid1-1.5wt%, agitating for 2-3hrs, laying aside for 3-5hrs to obtain supernatant, putting it into agitator, adding into sodium hydrate 1-1.5wt% with concentration 25-30%, agitating for 2-3hrs and laying aside for 3-5hrs to obtain the final product. It's simple, has better recovery rate and no environmental pollution.

Description

(1) Technical field [0001] The invention relates to a method for producing diesel oil from waste lubricating oil. (2) Background technology [0002] Only a small part of the existing waste lubricating oil (gasoline, diesel engine oil, axle oil, hydraulic oil, anti-wear pressure oil, transformer oil, ship bottom oil, and various lubricating greases) is used to regenerate lubricating oils with low quality requirements , and most of them are discarded as waste. According to statistics, thousands of tons of waste lubricating oil are produced every day in our country, of which more than 70% cannot be used, which has caused environmental pollution and wasted resources. At present, there is no better way to deal with it. . (3) Contents of the invention [0003] The purpose of the present invention is to provide a method for producing diesel oil from waste lubricating oil. This method can not only make full use of the resources of reliable engine oil, turn waste into treasure, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G7/00C10M175/00
Inventor 隋日忠
Owner 隋日忠
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