Method and apparatus for optic catalytic oxidizing, desulfurizing and denitrifying flue gas simultaneously

Abstract

The invention relates to a method for processing desulfuration and denitration simultaneously of smoke optical catalysis oxygenation and relative device, belonging to the smoke purifying technique. Said method comprises: guiding the coal-fired smoke into the reactor; filling optical catalyst into the reactor to be illuminated by light, while said optical catalyst is formed by carrier, and the titania and additive in 0.5% mass percentage; said carrier is quartz sand whose diameter is 4-6mm; said optical catalyst is the mixture of titania and the additive. The invention can complete the desulfuration and denitration simultaneously with high efficiency and stable operation, while it can apply the SO2 and NOx in different mass percentages, and the product can be used as muck; said desulfuration and denitration process will not generate pollution, with simple stricture and lower cost.

Description

Technical field

[0001] The invention relates to a method and a device for desulfurization and denitration of flue gas, especially a carrier type TiO 2 The photocatalyst catalyzes and oxidizes flue gas to realize flue gas desulfurization and denitration, which belongs to the technical field of flue gas purification. Background technique

[0002] SO produced during coal burning in power plants 2 And NO X It is currently one of the main sources of air pollution, and the environmental problems caused by it have attracted worldwide attention. Therefore, the research on flue gas desulfurization and denitrification technology has also become a research hotspot in the environmental field.

[0003] The current industrial flue gas desulfurization methods can be divided into wet and dry processes. The traditional wet desulfurization process is the limestone-gypsum process. Although the process is very mature, the equipment investment and operating costs are relatively high, and a large amou...

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