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Environment-friendly coal additive

A coal additive and an environmentally friendly technology, applied in the fields of sulfur fixation and coal saving, can solve the problems of low thermal efficiency of bed-fired boilers, achieve good wetting and penetration, good frost resistance, and improve combustion efficiency

Inactive Publication Date: 2012-07-11
李之平 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal efficiency of the layer-fired boiler is low, generally 60-65%

Method used

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  • Environment-friendly coal additive
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Experimental program
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Embodiment Construction

[0010] According to the additive provided by the present invention, the content of the catalyst is 0.3-95% by weight, preferably 5-85% by weight, the content of the surfactant is 0.01-20% by weight, preferably 0.1-15% by weight, so The content of the water is 0-99.5% by weight, preferably 0-90% by weight.

[0011] According to the additive provided by the present invention, although the surfactant can achieve the purpose of the present invention as long as it is a mixture of cationic surfactant and anionic surfactant, preferably, the mixture of cationic surfactant and anionic surfactant The weight ratio is 1:8-1:50, preferably 1:5-1:20.

[0012] According to the additive provided by the present invention, the anionic surfactant is selected from fatty alcohol polyethylene polyoxypropylene block polyether sulfate and has the following general chemical formula:

[0013]

[0014] Wherein, R is an alkyl group with 5-20 carbon atoms, n:m:p is 40:15:5-40:10:2, and the molecular w...

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Abstract

The invention relates to an environment-friendly coal additive which comprises a catalyst and a surfactant with or without water, wherein the surfactant is the mixture of a cationic surfactant and an anionic surfactant, the total weight of the additive is taken as a basic standard, the content of the catalyst is 0.3-95 wt%, the content of the surfactant is 0.01-20 wt%, the content of the water is 0-99.5 wt%, and the anionic surfactant is selected from fatty alcohol polyoxyethylene polypropylene oxide block polyether sulfate. The coal additive has good stability, and can greatly improve the combustion efficiency of coal, and the emission load of sulfur dioxide can be obviously reduced.

Description

technical field [0001] The invention relates to environment-friendly coal additives, especially coal-saving, sulfur-fixing and additives. Background technique [0002] my country is a big coal producing and consuming country. In the first half of 2011, the coal production was 17.4 trillion tons. It is predicted that the annual coal production will reach 37 trillion tons. With the rapid development of the national economy, the mining and consumption of raw coal will not increase. will stop. According to my country's energy demand and structure, coal accounts for 66.73% of the total energy at present, and it is predicted that it will remain at 66.73% by the middle of this century. For quite a long time, coal is still the main energy source in our country. At present, there are about 500,000 layer-type coal-fired boilers in our country. These boilers consume about 40% of the country's coal production. These boilers are mainly distributed in the relatively cold northern regions...

Claims

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Application Information

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IPC IPC(8): C10L9/10
Inventor 李之平林长虹
Owner 李之平