Efficient stokerfeed boiler ozonation desulfurization and denitrification integrated process system

Abstract

The invention relates to an efficient stokerfeed boiler ozonation desulfurization and denitrification integrated process system. The system mainly comprises a flue gas system, an air source oxygen generation system, an oxygen storage and supply system, an ozone generation system, a recirculating cooling water system, an ozone injection system, an absorption tower system, a process water system, a compressed air system, a magnesium oxide method flue gas desulphurization system, a gas flow measuring system, a high-low pressure distribution and control system and the like. According to the efficient stokerfeed boiler ozonation desulfurization and denitrification integrated process system, the ozonation oxidation technology is utilized for flue gas denitrification, the strong oxidizing property of ozone is utilized for oxidizing a water-insoluble nitric oxide in flue gas into freely-soluble N2O5 and other gas and absorption is performed through a follow-up absorbing device. The technology has the advantage of being high in flue gas adaptability and can remove flue gas containing high dust content, the denitrification efficiency can reach 95%, and meanwhile the denitrification efficiency can be adjusted according to on-site requirements.

Description

technical field [0001] The invention relates to a high-efficiency chain furnace ozone oxidation desulfurization and denitrification integrated process system, which can be applied to the flue gas treatment process containing nitrogen oxides and sulfur oxides, and can carry out NO x and SO x Efficient integrated joint removal. Background technique [0002] When the boiler burns pulverized coal for energy conversion, it will emit a large amount of pollutants to the environment. According to statistics, atmospheric NO x 67% of emissions come from burning coal, nitrogen oxides (NO x ) emission is one of the main causes of a series of serious pollution problems such as acid rain and photochemical smog, so the NO x Control processing is very necessary. [0003] More than 95% NO in boiler flue gas x It is NO, NO is insoluble in water, and the high-valence state of NO 2 , NO 3 , N 2 o 5 React with water to form HNO 3 , its solvency is greatly improved, so that by changing ...

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Problems solved by technology

[0009] The technical problem solved by the present invention is: design and develop the integrated process system of ozone oxidation desulfurization and denitrification of new high-efficiency chain furnace; Spray 0.6 to 1.5 times the equivalent required to remove the pollutants contained in the flue gas

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