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Current location: Air filter > News Center >What steps are required for desulfurization equipment?

What steps are required for desulfurization equipment?

Desulfurization equipment generally refers to a series of equipment used to remove sulfur element in coal and prevent SO2 generation during combustion.

Sulfur pollution to the environment is relatively large, sulfur oxide and hydrogen sulfide pollution to the atmosphere, sulfate and hydrogen sulfide to water pollution, are the focus of environmental protection work. A large amount of coal will be burned in the production process of thermal power plant, and the coal often contains sulfur element, which will release a large amount of SO2 after combustion. If it is not treated, it will cause great harm to the environment. Therefore, the power industry is generally used Desulfurization equipment

 Desulfurization equipment

desulphurization equipment requirement

(1) oxygen content: the oxygen content should be less to ensure the safety of production. Generally, the oxygen content in the gas should be less than 0.5%, the lower the better.

(2) carbon dioxide: the content of carbon dioxide is generally stable. If the content is too high (such as desulfurization of shift gas), more sodium carbonate will be consumed. The pH of the solution decreases, which is not conducive to the absorption of hydrogen sulfide, and has adverse effects on regeneration. The content should be measured. As one of the bases for adjusting the total alkalinity.

(3) cyanide: hydrogen cyanide is contained in semi water gas and coke oven gas, and sodium cyanide and sodium hydrosulfide are generated when contacting with alkali liquor, and alkali is consumed. Therefore, its content should be measured in order to adjust alkalinity and estimate the consumption of raw materials.

On the other hand, the content of hydrogen sulfide in the solution depends on the size of the hydrogen sulfide content in the product, and on the other hand, the content of hydrogen sulfide in the solution depends on the size of the production gas.

(5) organic sulfur: generally, wet desulfurization can only remove part of the organic sulfur, but it will be converted into hydrogen sulfide in the subsequent process transformation, which is also not conducive to production. The determination of organic sulfur content can provide real reference data for sulfide desulfurization in the later process.

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