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Treatment method and device of tank-cleaning sump oil

A treatment method and treatment device technology, applied in sludge treatment, water/sludge/sewage treatment, sludge treatment through temperature control, etc., can solve the problem of increasing the cooling load of diesel oil and residual oil, increasing energy consumption, and wasting heat sources and other issues, to achieve significant economic and environmental benefits, save disposal costs, and increase disposal costs

Active Publication Date: 2019-03-08
CHINA UNIV OF PETROLEUM (BEIJING) +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest problem of cleaning dirty oil is high emulsification and high content of fine particles. The re-smelting process seriously affects the long-term stable operation of production equipment, increases energy consumption, and reduces efficiency.
First, the degree of emulsification of electric desalination drainage is aggravated, resulting in "black water" in electric desalination cutting water. After being discharged into the sewage system, it still appears in the form of dirty oil and hazardous waste, causing a vicious circle; second, affecting the heat exchange network of the device Heat balance, the heavy oil components and non-oil components in the dirty oil gradually deposit on the surface of the heat exchanger tube bundle to form deposits, which reduces the heat transfer efficiency of the heat exchanger, resulting in a continuous decrease in the final heat exchange temperature of crude oil, wasting heat sources, and at the same time It greatly increases the cooling load of diesel oil and normal residual oil; thirdly, it affects the stable operation of the distillation tower, and some particles will be deposited on the surface of the tray, which affects the mass transfer efficiency and has a serious impact on the operating parameters and long-term operation of the equipment. The loss is huge; Fourth, coking and blending treats the waste oil from clear tanks as residual oil, which itself reduces its proper quality, and the blending process not only affects the efficiency of the fractionation tower, but also increases the ash content of coke and reduces the quality, which affects the economic benefits. The damage is also very serious
[0004] There are too many unfavorable factors for a small amount of atmospheric and vacuum refining treatment or coking and blending treatment of tank cleaning waste oil, and outsourcing treatment causes great waste of resources and economic losses, which cannot reasonably and effectively solve the problem of cleaning tank waste oil. In order to solve this problem in a long-term and effective manner, from the perspective of clean production, mature refining treatment technology is urgently needed

Method used

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Embodiment Construction

[0061] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solutions of the present invention are now described in detail below, but should not be construed as limiting the scope of implementation of the present invention.

[0062] like figure 1 As shown in the figure, the present embodiment provides a tank cleaning sewage oil amount treatment device, the purification treatment device includes: an adjustment unit 1, a separation unit 2, an extraction unit 3, a deep oil removal unit 4, an extraction agent tank 5, and an analytical agent tank. 6.

[0063] The conditioning unit 1 communicates with the separation unit 2 , the separation unit 2 communicates with the extraction unit 3 , and the extraction unit 3 communicates with the deep oil removal unit 4 .

[0064] The extraction agent tank 4 is communicated with the extraction unit 3 , and the analytical agent tank 6 is communicated with the...

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Abstract

The invention provides a treatment method and device of tank-cleaning sump oil. The treatment method comprises the following steps: heating the tank-cleaning sump oil to 60 to 90 DEG C and carrying out adjusting treatment to obtain adjusted sump oil; separating the adjusted sump oil to obtain recycled oil, sewage and oil-containing solid impurities; carrying out extraction and oil removal treatment on the oil-containing solid impurities to obtain extracted oil and oil-containing residues; carrying out resolving, electro-catalytic oxidation and solid-liquid separation on the oil-containing residues to finish the treatment of the tank-cleaning sump oil. The invention further provides the treatment device of the tank-cleaning sump oil. By adopting the treatment method and device provided by the invention, the solid content and moisture content of recycled oil of the treated tank-cleaning sump oil are low; the oil content of the generated residues is low and the residues are easily dried.

Description

technical field [0001] The invention relates to a method and a device for treating dirty oil, in particular to a method and device for treating dirty oil from tanks, and belongs to the technical field of solid waste treatment. Background technique [0002] During the storage process of crude oil, heavy oil components (high melting point wax, asphaltene, colloid), non-oil components (fine particles, large particles of mud sand, salts, mechanical impurities, ferrous sulfide and other inorganic impurities) will It is deposited with water to the bottom of the tank to form sludge, which reduces the effective volume of the oil tank. After accumulating to a certain amount, it will affect the normal production and operation, and the tank needs to be cleaned. According to the lightness and weight of crude oil, in addition to the previous shear mixing tank cleaning, high-quality light crude oil and light diesel oil are also used for cleaning, and the cleaned-up mixture is called tank ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/18C02F11/127C10G1/04
CPCC02F11/00C02F11/127C02F11/18C10G1/045C10G2300/1003C10G2300/4006C10G2300/44
Inventor 阎光绪郭绍辉谢文玉李德豪吴骏腾刘景峰徐铭英杨振兴李阳张帅李长刚
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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