Fire coal sulfur fixation, smoke abatement and denitration agent

Abstract

The invention relates to a fire coal sulfur fixation, smoke abatement and denitration agent, which is formed by diversified complex formulation of mainly a sulfur fixing agent, a smoke abatement catalyst, a denitration agent, a modified combustion promoter and the like. When in use, the agent provided by the invention is added according to 1-5% of fire coal to fully activate fire coal, rapidly decompose, enforce modification and catalyze combustion, thus greatly reducing the discharge of harmful gases such as SO2, CO, NOX and the like, decreasing blackness of exhaust smoke, raising the boilerthermal efficiency and reaching the purpose of saving coal and reducing emission. Therefore, the agent provided by the invention has remarkable economic benefits and social benefits.

Description

technical field [0001] The invention discloses a method capable of reducing SO produced in the combustion process of a coal-fired boiler. 2 , CO, NO X , smoke and dust emissions, and improve boiler thermal efficiency, reduce coal consumption of coal-fired sulfur fixation, smoke elimination, denitrification agent. Background technique [0002] Coal provides heat energy to humans during combustion, but it also produces SO 2 , NO X Harmful substances such as smoke and dust have made China's air pollution very serious. SO from coal combustion in China 2 Emissions account for 90% of the total emissions, the annual SO 2 The emission is about 20 million tons; the NO produced by production and living activities in China X Up to 50 million tons, the NO produced by coal burning X Emissions account for 60-80% of total emissions; dust emissions from coal combustion in China account for about 70% of total emissions, with an annual emission of about 20 million tons. With the cont...

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Problems solved by technology

NO control during coal combustion X Emissions, usually excess air combustion, air staged combustion, fuel staged combustion or flue gas recirculation method, etc.; although these methods are low in cost and the system operating conditions are not high, but the denitrification efficiency is low and cannot effectively reduce NO X emissions

And control NO after burning coal X The method of emission is to use wet chemical absorption method or dry selective catalytic reduction method, etc. Although this control method has high denitrification efficiency, it has high cost, complicated control, and poor system reliability, so it is difficult to popularize and use.

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