Waste water coal coke slurry and preparation method thereof

A waste water and coke slurry technology, which is applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve the problems of waste of resources, environmental pollution, etc., and achieve the effect of improving slurry forming, good fluidity, and easy storage

Inactive Publication Date: 2011-09-14
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Technical problem: In view of the deficiencies in the prior art, the purpose of the present invention is to provide a waste water coal coke slurry and its preparation method to realize efficient utilization of resources such as industrial waste water, petroleum coke and low-grade coal, and to solve environmental pollution and waste of resources question

Method used

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  • Waste water coal coke slurry and preparation method thereof
  • Waste water coal coke slurry and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1 A wastewater coal coke slurry comprising the following components in mass fractions: 35% industrial wastewater, 20% petroleum coke, 40% low-rank coal, and 5% water.

[0038] The method for preparing above-mentioned waste water coal coke slurry, as the technological process shown in accompanying drawing, its concrete steps are as follows:

[0039] (1) Carry out primary mechanical crushing of lump petroleum coke to a particle size of 8mm; then carry out secondary mechanical crushing to reach a powder with a particle size of 2mm;

[0040] (2) Perform primary mechanical crushing of lumpy low-rank coal to a particle size of 8mm; then carry out secondary mechanical crushing to achieve a powdery particle size of 2mm;

[0041] (3) Send the weighed petroleum coke powder, industrial wastewater, low-grade coal powder and water into the ball mill for continuous wet ball mill pulping;

[0042] (5) Petroleum coke powder, industrial wastewater, low-grade coal powder and wat...

Embodiment 2

[0052] A wastewater coal coke slurry comprises the following components in mass fractions: 30% industrial wastewater, 40% petroleum coke, 23% low-grade coal, and 7% water.

[0053] The method for preparing wastewater coal coke slurry, the preparation process is the same as in Example 1.

[0054] The quality index of the prepared waste water coal coke slurry is detected, and each quality index is as follows:

[0055] ① Concentration: 63±0.5% (mass);

[0056] ② The apparent viscosity is below 1000mPa.s, the fluidity is good, and it can be transported and atomized;

[0057] ③ The particle size of solid particles in the slurry is less than 0.3mm.

Embodiment 3

[0059] A wastewater coal coke slurry comprises the following components in mass fractions: 25% industrial wastewater, 60% petroleum coke, 5% low-rank coal, and 10% water.

[0060] The method for preparing wastewater coal coke slurry, the preparation process is the same as in Example 1.

[0061] The quality index of the prepared waste water coal coke slurry is detected, and each quality index is as follows:

[0062] ① Concentration: 65%±0.5% (mass);

[0063] ② The apparent viscosity is below 1200mPa.s, with good fluidity, which can be transported and atomized;

[0064] ③ The particle size of solid particles in the slurry is less than 0.3mm.

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Abstract

The invention discloses waste water coal coke slurry and a preparation method and a use thereof. The waste water coal coke slurry comprises the following components by weight percent: 20-60% of petroleum coke, 5-40% of low-grade coal, 25-35% of industrial waste water and 0-10% of water. The waste water coal coke slurry prepared by the preparation method can fully utilize the water, organic matters and macromolecular compounds in industrial waste water, reduce the adding quantity of a dispersant and eliminate the need of adding a stabilizer; the shortcomings that water coke slurry is poor in stability and difficult to catch fire and gasify are overcome; and the complementarity of physical and chemical properties of the low-grade coal and the petroleum coke is reasonably utilized, and the shortcomings of low mixture ratio of the petroleum coke in the slurry prepared by mixing the low-grade coal with the petroleum coke and low concentration of the formed slurry are further overcome. The prepared waste water coal coke slurry has better flowability and stability, is easy to store, convey and atomize, can be used as raw material for burning or gasification, and has potential large-scale industrial application prospects.

Description

technical field [0001] The invention relates to a mixed slurry of industrial waste water, petroleum coke and low-grade coal and a preparation method thereof, in particular to a waste water coal coke slurry and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, energy shortage and environmental pollution have become the core issues of social sustainable development. Industrial wastewater is the production wastewater, production sewage, and production waste liquid discharged during the processing of organic matter. It has the characteristics of many types of pollutants, high concentration, and great harm to the environment. It is a kind of industrial waste that is difficult to treat. [0003] The physical form of petroleum coke is similar to that of coal. It is a black or dark gray hard solid. It is a by-product of the delayed coking unit in the production of light oil products, and its output accounts for about 25% ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32
Inventor 段钰锋马修元刘猛李华锋
Owner SOUTHEAST UNIV
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