Method for adding coal catalyst and additive

A technology of catalysts and additives, which is applied in the application field of coal catalysts and additives, can solve the problems of insufficient effect, large amount of addition, troublesome operation, etc., and achieve the effects of convenient preparation and transportation, less amount of addition, and convenient operation and use

Inactive Publication Date: 2009-02-25
北京金源化学集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The technical problem to be solved by the present invention is: to solve the problems of coal catalysts and additives with large amount of addition, insufficient effect, troublesome operation and secondary pollution; according to the characteristics of coal's own structure, surface performance and reaction performance Combining technologies in chemistry, surface science, fluid mechanics, combustion and reaction kinetics, etc., to improve the dispersion and effect of coal catalysts and additives, reduce the amount of catalysts and additives, improve the operability of the addition method, and reduce the Operating costs and maintenance costs, providing a catalyst and additive addition technology for coal with good safety, stability, economy and good effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 10 parts of coal combustion catalyst, 2 parts of desulfurization agent, 3 parts of denitrification agent, 5 parts of glycerin stearate, 2 parts of polyoxypropylene polyoxyethylene glycerol ether, stir well, and then add 500 parts of heavy diesel oil , fully dissolved to obtain a solution, which is a coal combustion desulfurization and denitrification catalyst. When in use, it is atomized into an aerosol of 20-50 microns through a high-speed centrifugal atomizer, mixed with coal particles and powder, and directly enters the boiler for combustion. The combustion efficiency is increased by 15-20%, and the coal-saving rate is 20-30%. The emission of black smoke, sulfur dioxide and nitrogen oxides is reduced by 30-50%, the fouling in the furnace is reduced, and the working conditions of the boiler are significantly improved.

Embodiment 2

[0035] 5 parts of ethylene glycol diphenyl ether, 3 parts of dibenzyl oxalate, 15 parts of gas accelerator, 5 parts of dimethyl silicone oil, stir well, then add 400 parts of paraffin oil, fully stir and dissolve to obtain an emulsion, which is gas Promote additives. When in use, the aerosol atomized to 20-100 microns through the air atomizer is mixed with the raw coal powder and directly enters the furnace for reaction. The gasification speed is increased by 20-50%, the gasification conversion rate is increased by 10-30%, and coking in the furnace is reduced.

Embodiment 3

[0037] 2 parts of glycerol diethyl ether, 5 parts of dimethyl phthalate, 3 parts of polyoxyethylene lauryl ether sulfate triethanolamine salt, 10 parts of coal combustion catalyst, 2 parts of desulfurization agent, 3 parts of denitrification agent, respectively Add in batches to 200 parts of stirred water to obtain a combustion catalyst solution. When in use, the aerosol atomized to 20-100 microns by a pressure atomizer is fully mixed with pulverized coal, and after standing for 1 hour, it is directly burned in a pulverized coal furnace. The combustion efficiency is increased by 5-15%, the blackness of the flue gas is significantly reduced, the emission of sulfur dioxide and nitrogen oxides is reduced by 10-30%, there is no coking in the furnace, and the carbon residue in the coal ash is reduced by 30-60%.

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PUM

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Abstract

The invention relates to an adding method of catalysts and additives used for coal; the catalysts and additives used for coal are dissolved by solvent, added with ingredients which can increase full contact with the surface of coal and internal infiltration, and added to coal by means of spraying, so that the catalysts and additives used for coal can maximally distribute on the inner and outer surfaces of coal, thus giving full play to the effect of the catalysts and additives during coal reaction, improving reaction speed and yield and achieving the purposes of raising utilization rate of coal, saving coal resources, reducing pollutants, realizing safe and high-efficiency production, etc.

Description

technical field [0001] The invention belongs to the application technical field of coal catalysts and additives. Background technique [0002] Coal is one of the most important components of national energy. my country's primary energy is dominated by coal, accounting for about 70% of primary energy. According to statistics, among the nearly 2 billion tons of coal consumed in my country every year, more than 85% are directly used for direct combustion of thermal power generation, industrial boilers, industrial kilns and household stoves. However, my country's coal utilization efficiency is generally low at present, about 10% lower than that of developed countries. The large amount of direct combustion of coal, coupled with the poor quality of most of the coal and the low combustion efficiency, has caused serious damage to our country's environment and directly led to serious combustion-type air pollution in our country. According to statistics, SO emissions from coal combu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 张和平陈朝晖邱明建张雅丽张春山马垠刘琦张智勇
Owner 北京金源化学集团有限公司
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