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Mineral oil-containing waste comprehensive utilization system and method

A mineral oil and waste technology, applied in the field of municipal sludge treatment, can solve the problems of poor quality of recovered oil, low oil recovery rate, poor treatment effect, etc., to improve the quality of recovered oil, reduce the speed of coking, and reduce coking volume effect

Pending Publication Date: 2020-09-11
四川深蓝环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to address the above problems, to provide a system and method for comprehensive utilization of mineral oil-containing wastes, to solve the problem of poor treatment effect of traditional high-temperature pyrolysis (the solid phase oil content after treatment is about 4%) and low oil recovery rate. , poor quality of recovered oil, high energy consumption, easy coking and other problems

Method used

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  • Mineral oil-containing waste comprehensive utilization system and method

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Effect test

Embodiment 1

[0043] Such as figure 1 As shown, a comprehensive utilization system of mineral oil-containing wastes includes a feed section and a main reaction device 1, a crushing assembly 2 and an airflow impact assembly 3 are arranged between the main reactor and the feed section, and the airflow impact assembly 3 It is perpendicular to the falling direction of the material, and the oily sludge enters the main reaction device 1 after being crushed by the feeding part through the crushing component 2 and the airflow impact component 3;

[0044] The rear side of the main reaction device 1 is provided with a flue gas dust collection device 4 and an economizer 5, one end of the economizer 5 is connected to the air flow impact assembly 3, one end of the flue gas dust collection device 4 is connected to the main reactor, and the other end is connected to the main reactor. One end is connected to the economizer 5, and the flue gas from the main reaction device 1 passes through the flue gas dust...

Embodiment 2

[0060] The present embodiment provides a method for comprehensive utilization of mineral oil-containing waste, which comprises the following steps:

[0061] Step 1: Determine the agent, and determine the type and volume ratio of the inhibitor by testing the oily sludge raw material; the type and volume ratio of the inhibitor are 10-20% 1,2-dichloroethane (EDC) + 30-50% dimethyl sulfide + 40%-60% tris (trimethylsilyl) phosphite mixture,

[0062] Inhibitors can improve the quality of recovered oil and prevent coking and scaling. The explanation for the anti-coking effect is as follows: the organic sulfur in the inhibitor can decompose HS free radicals under anaerobic high-temperature cracking conditions, making the reaction zone As the concentration of free radicals increases, the free radicals can react with the metal surface to passivate the metal surface, inhibit the coking process on the surface of the reactor, and reduce the amount of coking; while the phosphide in the inhi...

Embodiment 3

[0072] This embodiment is based on the system of embodiment 1 and the method of embodiment 2, taking oil-based cuttings processing capacity of 5t / h, oil content of 25%, water content of 40%, and solid content of 35% as an example:

[0073] (1) Add 18% 1,2-dichloroethane (EDC) + 34% dimethyl sulfide + 48% tris(trimethylsilyl) phosphite mixture to the pretreated oily sludge , the addition ratio is 350ppm, and stir evenly;

[0074] (2) The argon gas heated up to 200°C by heat exchange from the economizer 5, after being compressed, is accelerated into a supersonic airflow through the Laval nozzle, injected into the pulverization port, and meets the oily sludge initially crushed by the roller crusher at a high speed. Collision, under the action of energy generated by supersonic speed, the oily sludge raw material (median diameter = 1563 μm detected by laser particle size analyzer) is broken into fine particles (median diameter = 47 μm), and enters the main reaction device 1;

[00...

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Abstract

The invention discloses a mineral oil-containing waste comprehensive utilization system and method. The system comprises a feeding part and a main body reaction device, a crushing assembly and an airflow impact assembly are arranged between the main body reactor and the feeding part, and oily sludge enters the main body reaction device after being crushed by the crushing assembly and the airflow impact assembly from the feeding part; a flue gas dust collection device and an energy saver are arranged on the rear side of the main body reaction device; one end of the energy saver is connected tothe airflow impact assembly, one end of the flue gas dust collection device is connected to the main body reactor, the other end of the flue gas dust collection device is connected to the energy saver, an inert gas generation device and an oil-water recovery device are arranged on the rear side of the energy saver, a flue gas circulation device is arranged on the rear side of the oil-water recovery device, and the flue gas circulation device is in through connection with the main body reaction device; by means of the energy-saving device, while tail gas is condensed, heat is exchanged to inertgas, and materials are crushed and heated.

Description

technical field [0001] The invention relates to the technical field of municipal sludge treatment, in particular to a comprehensive utilization system and method for mineral oil-containing waste. Background technique [0002] Oily sludge is a kind of solid waste produced in the process of production, processing, storage and transportation by refinery and oilfield enterprises, mainly including tank bottom sludge produced by various settling tanks, storage tanks and separators; produced by testing, operation and infrastructure construction operating sludge and floor sludge, etc. Generally, oily sludge is slightly denser than water, has strong adhesion and high viscosity, and is a viscous black semi-fluid. The petroleum substances in oily sludge are mainly heavy components such as asphaltene and colloid. Due to different sources, the physical properties of different types of sludge, such as oil-water separation, dehydration, water content, viscosity, etc., may be quite differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/10C10G1/00C10G75/04B01J19/14B02C21/00B09C1/06
CPCC02F11/10C10G1/002C10G75/04B01J19/14B09C1/065B02C21/00C02F2303/26C02F2303/10
Inventor 金涛谢非刘俊超白果夏洲邓舟陈科宇李桂林杨浦
Owner 四川深蓝环保科技有限公司
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