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Technology for preparing coal-water slurry by mixing coke powder and coking wastewater

A technology for coking wastewater and coal-water slurry, which is applied in the petroleum industry, liquid carbon-containing fuels, fuels, etc., can solve the problems of insufficiency, high hydrogen content, and large production capacity of the preparation process, and achieves reduction in energy consumption, consumption, and reduction. The effect of production costs

Inactive Publication Date: 2017-02-15
HUATIAN ENG & TECH CORP MCC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the hydrogen content in coke oven gas is too high to meet the CO / H requirements for methanol or oil production. 2 Compare
At the same time, the production capacity of methanol or oil products in some coking plants is large, and the amount of coke oven gas is not enough to supply

Method used

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  • Technology for preparing coal-water slurry by mixing coke powder and coking wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, this embodiment provides a process for preparing coal-water slurry by mixing coke powder and coking wastewater.

[0028] The fine coke powder produced in the coking process is transported to the ball mill for grinding through belts or vehicles, and the proportion of particles with a particle size of less than 0.1 mm is greater than 40%. Likewise, coal is ground to the same particle size. Coke powder and coal powder are mixed according to the weight ratio of 30:70.

[0029] The coking wastewater is transported to the coal-water slurry tank through pipelines. The mixed coke powder and coal powder are mixed with coking wastewater and additives according to the mass ratio of 55:44.5:0.5, then continuously added to the coal-water slurry tank, and stirred and mixed evenly. Wherein the additive is sodium lignosulfonate and sodium polyolefin sulfate mixed in a mass ratio of 1:1.

[0030] There is a set of monitoring system inside the coal-water sl...

Embodiment 2

[0035] On the basis of the above embodiments, this embodiment provides a process for preparing coal water slurry by mixing coke powder and coking wastewater.

[0036] The fine coke powder produced in the coking process is transported to the ball mill for grinding through belts or vehicles, and the proportion of particles with a particle size of less than 0.1 mm is greater than 40%. Likewise, coal is ground to the same particle size. Mix coke powder and coal powder according to the weight ratio of 10:90.

[0037] The coking wastewater is transported to the coal-water slurry tank through pipelines. The mixed coke powder and coal powder are mixed with coking wastewater and additives according to the mass ratio of 55:44.5:0.5, then continuously added to the coal-water slurry tank, and stirred and mixed evenly. The additives are lignosulfonate, sulfonated humate, polyolefin sulfate and polyoxyethylene hydrocarbons of equal quality.

[0038] Compared with Example 1, the mass rati...

Embodiment 3

[0040] On the basis of the above embodiments, this embodiment provides a process for preparing coal water slurry by mixing coke powder and coking wastewater.

[0041] The fine coke powder produced in the coking process is transported to the ball mill for grinding through belts or vehicles, and the proportion of particles with a particle size of less than 0.1 mm is greater than 40%. Likewise, coal is ground to the same particle size. Coke powder and coal powder are mixed according to the weight ratio of 40:60.

[0042] The coking wastewater is transported to the coal-water slurry tank through pipelines. The mixed coke powder and coal powder are mixed with coking wastewater and additives according to the mass ratio of 55:44.5:0.5, then continuously added to the coal-water slurry tank, and stirred and mixed evenly. The additives are lignosulfonate, sulfonated humate, polyolefin sulfate and polyoxyethylene hydrocarbons of equal quality.

[0043] Compared with Example 1, this em...

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Abstract

The invention discloses a technology for preparing coal-water slurry by mixing coke powder and coking wastewater, and particularly discloses a technology for preparing coal-water slurry by mixing the coke powder and the coking wastewater for comprehensive treatment of the coke powder and the coking wastewater. The technology is mainly used for solving the problem that in the prior art, treatment of coke powder and coking wastewater is inconvenient. The technology includes the following steps that firstly, a powder body is prepared; secondly, coking wastewater is collected; thirdly, the coal-water slurry is prepared from the powder body and the coking wastewater. The powder is prepared in the following processes that firstly, the coke powder is collected and ground into fine coke powder; secondly, coal is ground into pulverized coal, and the particle size of the pulverized coal and the particle size of the fine coke powder are controlled to be the same; thirdly, the pulverized coal and the fine coke powder are evenly mixed. The method for preparing the coal-water slurry from the coke powder and the coking wastewater includes the following processes that the powder body, the coking wastewater and additives are mixed, and the mixture of the powder body, the coking wastewater and the additives is stirred evenly. By means of the technology, the coke powder and the coking wastewater can be comprehensively treated, cost is reduced for enterprises, and resources are saved.

Description

technical field [0001] The invention relates to a process for preparing coal-water slurry by mixing coke powder and coking wastewater. Background technique [0002] Coking wastewater contains a large number of organic pollutants and inorganic pollutants, among which organic pollutants include phenol, benzene, toluene and solvent oil, etc., inorganic pollutants include hydrogen cyanide, hydrogen sulfide and ammonia, etc., and also include some solid residues. In the process of dealing with these pollutants, multi-stage treatment is required, the process is extremely complicated and the operation cost is high. At the same time, due to the huge amount of organic pollutants in the coking wastewater, the biochemical treatment takes a very long time, and the temperature and pH requirements during the treatment process are extremely high. Therefore, it is necessary to propose a new coking wastewater treatment process. [0003] During the coking process, 2.0% to 4.5% of fine coke ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32
CPCC10L1/326
Inventor 李启超程寒飞詹茂华刘训东安浩白扬安忠义
Owner HUATIAN ENG & TECH CORP MCC