Regeneration technology of industrial and mining waste oil

Abstract

The invention relates to a regeneration technology of industrial and mining waste oil. The regeneration technology is characterized by treating the waste oil through multiple procedures so as to enable the oil to reach standards for reuse. The technology comprises the steps: (1) pretreating the industrial and mining waste oil; (2) subjecting the industrial and mining waste oil pretreated in the step (1) to thermal cracking and catalytic cracking, so as to obtain crude oil, of which the structure is close to that of a diesel oil molecule structure; (3) fractionating the crude oil prepared in the step (2); and (4) subjecting the crude oil fractionated in the step (3) to refining and filtering, thereby obtaining a finished product. According to the regeneration technology of the industrial and mining waste oil, disclosed by the invention, long-chain alkanes and mono-branched alkanes can be cracked, cycloalkanes, multibranched alkanes and arenes can be reserved unchanged, and thus, the pour point of distillate oil is lowered, so that heavy oil with a high pour point can be converted into light diesel oil with a low pour point which is lower than -10 DEG C. Colloids, asphaltenes, sulfides, oxides, unsaturated hydrocarbons and the like can be excellently removed, so that finished oil is clear and transparent, is pure in odor and does not deteriorate during long-time storage.

Description

technical field [0001] The invention relates to the technical field of waste oil reuse, in particular to a regeneration process of industrial and mining waste oil. Background technique [0002] Oil supply is becoming increasingly tight, prices are rising, and resources are becoming increasingly depleted. There are signs that the era of low oil prices may be gone forever. In order to alleviate the shortage of oil supply, make full use of energy resources, save energy, reduce pollution, and turn waste into treasure has become a basic national policy of the country. Make full use of waste raw materials, especially waste oil, to regenerate light and heavy diesel oil and fuel oil through catalytic cracking. etc. It can not only alleviate the contradiction between supply and demand of my country's oil shortage and increasing demand, but also promote environmental protection and turn waste into treasure. It is a wise choice for the country, society and enterprises, and has a very br...

AI Technical Summary

Problems solved by technology

[0009] However, none of the above-mentioned methods, processes or devices has completely changed the disadvantages of waste discharge, environmental pollution, complicated procedures, high production costs, time-consuming, and energy-consuming problems caused by traditional acid-base refining.

[0010] And the oil product that above-mentioned method, technique or device make is big in viscosity, and density is big, and will oxidize and blacken in a short time, and the odor and peculiar smell in the oil are difficult to remove, and the treatment and discharge of acid slag and waste water have great impact on The environment will cause serious secondary pollution

[0011] It is difficult to compete with regular petroleum products due to oil regeneration or waste oil regeneration diesel and fuel oil quality is difficult to control, or the quality is not up to standard or environmental protection problems, or the performance of the product itself is not good.

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