A monitoring pretreatment system and method for flue gas of denitration by oxidation

Abstract

The application provides an oxidation denitration flue gas monitoring pretreatment system, the pretreatment system includes a master control module, an inorganic salt removal device, a wastewater storage device, a nitrate concentration detection module, an ozone decomposition device, an ozone concentration detection module, a dynamic dilution device, a nitrogen oxide analyzer, the application removes water-soluble inorganic salt through gas washing + condensation water removal, carries out ozone decomposition through the ozone decomposition device, reduces the concentration of nitrogen dioxide in the sample gas through the dynamic dilution device, realizes real-time monitoring of the ozone concentration, the water-soluble nitrate concentration, the nitrogen oxide concentration (including nitrogen monoxide and nitrogen dioxide), the gas flow, the humidity and the like through each detection module, the process control end carries out real-time monitoring data collection of the production amount, the nitrogen oxide before the treatment facility, the nitrogen oxide after the treatment facility and the ozone, carries out production amount control, treatment facility raw material feeding control and the like, so as to realize emission standard reaching, reasonable production and treatment facility efficiency improvement.

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