Coal fuel sulfur-fixation burning accelerant and preparation method thereof

A combustion aid and sulfur-fixing agent technology, applied in the field of environmental protection, can solve the problems of high cost, single component, unfriendly environment, etc., and achieve the effect of low corrosion of equipment, high degree of dispersion, and simple and cheap raw materials

Inactive Publication Date: 2013-09-04
何子瑜 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problems of single component, unfriendly to the environment and high cost of the current sulfur-fixing combustion aid, the present invention provides a high-efficiency sulfur-fixing combustion aid for coal combustion with simple composition and easy synthesis

Method used

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  • Coal fuel sulfur-fixation burning accelerant and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh potassium nitrate 1.5kg, potassium bromate 0.5kg, manganese dioxide 0.5kg, iron red 0.2kg, cerium nitrate 0.1kg, nickel sulfate 0.1kg, potassium permanganate 0.5kg, borax 0.5kg, slaked lime 1.0kg, bentonite 5.1kg . Grind to 80-100μm respectively, then mix and stir evenly. Dissolve in water at a weight ratio of 2.5:10, and evenly spray on 4000 kg of low-quality coal. Then burn in the furnace.

Embodiment 2

[0031] Example 2 Research on the application performance of sulfur-fixed combustion accelerant

[0032] The sulfur-fixing combustion accelerant prepared in embodiment 1 is joined in plate furnace, carries out combustion test, and data is as follows:

[0033] The performance of the sulfur-fixed combustion accelerant prepared by the embodiment 1 of table 1

[0034]

[0035] From the data in Table 1, it can be seen that after adding high-efficiency sulfur-fixing combustion accelerant, SO 2 Emissions are 61.7%. The comprehensive coal saving rate is 15.7%. Therefore, the high-efficiency sulfur-fixing combustion accelerant of the present invention has easy-to-obtain raw materials, simple processing, no emission, little corrosion, strong operability and obvious effect. Show great industrial application value.

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Abstract

The invention discloses a coal fuel sulfur-fixation burning accelerant and a preparation method thereof. The burning accelerant comprises the components of raw materials in parts by weight as follows: 15-20 parts of the burning accelerant, 3-8 parts of a catalyst, 5-10 parts of a sulfur-fixing agent, 40-60 parts of a stabilizer, 3-5 parts of preservative and 3-5 parts of an oxidizing agent. The burning accelerant is potassium nitrate or potassium bromate, the catalyst is a polymetallic composite catalyst, the sulfur-fixing agent is slaked lime, the stabilizer is bentonite, the preservative is borax, and the oxidizing agent is potassium permanganate; the mass ratio of the potassium nitrate to the potassium bromate is 3:1; and the mass ratio of polymetallic composite catalyst components of manganese dioxide, iron oxide red, cerous nitrate and nickel sulfate is 5:2:1:1. The preparation method of the coal fuel sulfur fixation burning accelerant comprises the steps as follows: firstly, raw materials are ground respectively until the grain diameters range between 80 mu m and 100 mu m, and then the materials are stirred uniformly; then water is added into the raw materials which are stirred uniformly according to the weight ratio of 2.5:10, and the raw materials and the water are stirred fully and uniformly, so that a product is obtained. The coal fuel sulfur fixation burning accelerant has the advantages as follows: the raw materials are simple and cheap, the synthetic process is easy to operate, and the burning accelerant is environment-friendly, high in desulfurization activity and small causticity to equipment.

Description

[0001] technical field [0002] The invention relates to the technical field of environmental protection, in particular to a coal-burning sulfur-fixing combustion aid and a preparation method thereof. [0003] Background technique [0004] As the country's environmental protection regulations become increasingly strict, coal-fired sulfur emissions are required to be lower and lower. However, with the development of the economy, the consumption of coal in the world is increasing year by year. Therefore, the development of coal-fired desulfurization combustion aids with good performance, It has become a new subject attracting worldwide attention. It is well known that sulfur oxides (SO X ) lead to acid rain and solid dust pollution, making the air polluted. For this reason, all countries have promulgated strict coal-burning sulfur emission standards, and my country has implemented the emission standards equivalent to Euro IV (<50ppm) on July 1, 2010 (two years ahead ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 何子瑜王庆伟帅兵
Owner 何子瑜
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