Waste mineral oil decolorizing refining process and operation method thereof

A technology of waste mineral oil and operation method, which is applied in the field of waste mineral oil decolorization and refining process, can solve the problems of difficult secondary utilization or sales, low purity of mineral oil, complicated operation process, etc. Shortage of products, the effect of simple operation steps

Inactive Publication Date: 2019-12-06
佛山市富龙环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing waste mineral oil recovery and reuse methods have complicated operation process and high treatment cost. At the same time, the purity of the treated mineral oil is not high, and the regeneration efficiency is not high. It is difficult to recycle or sell, resulting in poor economic benefits, and Not conducive to industrialized integrated production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A process for decolorizing and refining waste mineral oil and an operation method thereof, the method comprising the following steps:

[0024] 1) Pump the waste mineral oil to the pretreatment tank for pretreatment of filtration, sedimentation and dehydration;

[0025] 2) Then enter the washing tank, add lye, water and demulsifier to the washing tank to remove the organic acid and water-soluble additives in the oil;

[0026] 3) Oil-water separation of waste mineral oil;

[0027] 4) Hydrodechlorination of waste mineral oil;

[0028] 5) After the waste mineral oil raw material is decompressed, it enters the vacuum distillation tower to separate different fractions of mineral oil base oil;

[0029] 6) Classify the finished refined oils and package them in oil barrels, and stick labels for easy storage and sales.

[0030] In the step 1), the waste mineral oil is heated to 40-60°C, and then cooled and settled; the tank used for the settlement is a cylindrical tank with a ...

Embodiment 2

[0037] A process for decolorizing and refining waste mineral oil and an operation method thereof, the method comprising the following steps:

[0038] 1) Pump the waste mineral oil to the pretreatment tank for pretreatment of filtration, sedimentation and dehydration;

[0039] 2) Then enter the washing tank, add lye, water and demulsifier to the washing tank to remove the organic acid and water-soluble additives in the oil;

[0040] 3) Oil-water separation of waste mineral oil;

[0041] 4) Hydrodechlorination of waste mineral oil;

[0042] 5) After the waste mineral oil raw material is decompressed, it enters the vacuum distillation tower to separate different fractions of mineral oil base oil;

[0043] 6) Classify the finished refined oils and package them in oil barrels, and stick labels for easy storage and sales.

[0044]In the step 1), the waste mineral oil is heated to 60°C, and then cooled and settled; the tank used for the settlement is a cylindrical tank with a larg...

Embodiment 3

[0050] Embodiment 3: a kind of waste mineral oil decolorization and refining process and operation method thereof, the method comprises the following steps:

[0051] 1) Pump the waste mineral oil to the pretreatment tank for pretreatment of filtration, sedimentation and dehydration;

[0052] 2) Then enter the washing tank, add lye, water and demulsifier to the washing tank to remove the organic acid and water-soluble additives in the oil;

[0053] 3) Oil-water separation of waste mineral oil;

[0054] 4) Hydrodechlorination of waste mineral oil;

[0055] 5) After the waste mineral oil raw material is decompressed, it enters the vacuum distillation tower to separate different fractions of mineral oil base oil;

[0056] 6) Classify the finished refined oils and package them in oil barrels, and stick labels for easy storage and sales.

[0057] In the step 1), the waste mineral oil is heated to 40-60°C, and then cooled and settled; the tank used for the settlement is a cylindri...

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PUM

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Abstract

The invention discloses a waste mineral oil decolorizing refining process and an operation method thereof. According to the process and the operation method, waste mineral oil is pumped into a pretreatment tank, and is subjected to pretreatment of filtering, settling and dewatering; the pre-treated waste mineral oil enters a water washing tank, wherein an alkali liquid, water and a demulsifier areadded into the water washing tank to remove organic acids and water-soluble additives from the oil; the waste mineral oil is subjected to oil-water separation, and then is further subjected to hydrodechlorination treatment; the waste mineral oil raw material enters a pressure reducing distillation tower to separate different distillate mineral oil base oils after pressure reducing; and finally the finished refined oil is classified and packaged in an oil barrel, and a label is adhered so as to conveniently store and sell. According to the present invention, the method has advantages of simpleoperation steps, good catalytic effect in the hydrofining step, complete reaction, uniform components of the treated mineral oil, high product quality, and convenient and fast storage and transportation of the finished product, and can easily achieve the large-scale treatment and continuous operation of equipment, and can obtain good environmental benefits and economic benefits.

Description

technical field [0001] The invention relates to the technical field of recovery and reuse of waste mineral oil, in particular to a process for decolorizing and refining waste mineral oil and an operation method thereof. Background technique [0002] Mineral oil is currently the most widely used chemical substance in the world, but if the waste oil produced after the use of mineral oil is not properly disposed of, many harmful substances such as polycyclic aromatic hydrocarbons will be produced in the waste mineral oil, which have a strong carcinogenic effect; The polycyclic aromatic hydrocarbons such as polychlorinated biphenyls (PCBs), and waste mineral oil also contain many heavy metal additives and organic compounds containing chlorine, sulfur, and phosphorus added to improve the performance of oil, which will cause serious pollution to water and soil. The growth of animals and plants and the living environment of human beings are listed as high-risk wastes for priority m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14
CPCC10G67/14C10G2300/202
Inventor 肖绍武张钜铖宗敏芳梁满坚周伟豪王子琦
Owner 佛山市富龙环保科技有限公司
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