Coal water mixture

A technology of coal-water slurry and mud, which is applied in the petroleum industry, liquid carbon-containing fuel, fuel, etc., can solve problems such as environmental pollution, and achieve the effects of reducing production costs, saving chemical consumption and energy consumption

Inactive Publication Date: 2006-08-09
CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the environmental pollution caused by mud stacking after oilfield wastewater tre

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 25kg of mud treated by oilfield flooding production fluid with a water content of 75-85%, 60kg of pulverized coal with an average particle size of 30-60μm, and 15kg of water into a grinder equipped with stirring equipment, stir and mix for 1 hour and then filter to remove particles larger than 0.5mm part, obtains the coal-water slurry of the present invention. The results are shown in Table 1.

Embodiment 2

[0025] Add 25kg of mud treated by ASP flooding in the oil field, 60kg of pulverized coal with an average particle size of 30-60μm, and 15kg of tap water into a grinder equipped with stirring equipment, stir and mix for 1 hour and then filter to remove particles with a particle size greater than 0.5mm Part, obtain the coal water slurry of the present invention. The results are shown in Table 1.

Embodiment 3

[0027] Add 25kg of oilfield ASP flooding production fluid mud, 60kg and 15kg of pulverized coal with an average particle size of 30-60μm into the grinder equipped with agitating equipment, stir and mix for 1 hour and then filter. The portion with a particle diameter greater than 0.5 mm is removed to obtain the coal water slurry of the present invention. The results are shown in Table 1.

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Abstract

This invention relates to a kind of coal-water slurry including the following weight percentages: slurry: 20-25% of the oil field extracted solution containing 75-85% water, raw coal with the average size: 30-60mum and water: 5-20%. This invention applies the slurry processed from the oil field extracted solution as the dispersion stabilizing agent of coal-water slurry to cost the wastes of waste water and said slurry can be used directly without dewater, the pollutant water process agent is the graft product of leonardite.

Description

technical field [0001] The present invention relates to a kind of coal-water slurry, more specifically relates to a kind of coal-water slurry which directly utilizes the mud treated by the oil field production fluid as the dispersion stabilizer of the coal-water slurry. Background technique [0002] Coal water slurry is a new type of fuel developed in the 1980s that uses coal instead of oil. It is 60-70% coal powder, 30-40% water and less than 1.5% dispersion stabilizer with a certain particle size distribution. mixture. It grinds coal with low ash content and high volatility into fine coal powder, and prepares it by adding a dispersion stabilizer according to a reasonable coal-water ratio. Coal-water slurry not only maintains the original physical properties of coal, but also has the same fluidity and stability as oil. It can be used in power plant boilers, industrial boilers and industrial furnaces to burn instead of oil or gas. [0003] Among the raw materials that make...

Claims

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Application Information

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IPC IPC(8): C10L1/32
Inventor 王丕新李松堂张文德徐昆项盛
Owner CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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