With the continuous progress of China's industry, more and more waste gas is produced by burning diesel oil in boilers, mainly containing so2 NOX. Pollutants such as soot and ringerman blackness. If these pollutants are discharged into the atmosphere at will, they will have a very bad impact on the local ecological environment. In order to protect the integrity of the ecological environment and the sustainable development of the environment and economy, the boiler exhaust gas should be desulfurized. Biological desulfurization also came into being.
At present, there are various flue gas desulfurization and denitration treatment technologies, including pafp ACFP. Pyrolusite method Electron beam ammonia method Pulse corona method Gypsum wet process Catalytic oxidation method Microbial degradation and other technologies, among which wet flue gas desulfurization and denitration are fast and common.
Common flue gas desulfurization methods include dry desulfurization and wet desulfurization. Dry desulfurization uses catalyst and absorbent to remove sulfur dioxide from flue gas. Different catalysts and adsorbents also have different effects. The more widely used types of absorbents are oxides and activated carbon. Although dry desulfurization is effective, the absorption cost is high because it cannot be recovered. Liquid absorbent is used for wet desulfurization and dry desulfurization. Limestone and seawater desulfurization are the main operation methods of wet desulfurization. Therefore, the vast majority of enterprises in China use wet desulfurization for relevant operations.
The wet flue gas desulfurization technology has many advantages: the wet flue gas desulfurization technology is a gas-liquid reaction, with fast reaction speed and high desulfurization efficiency, generally higher than 90%. The technology is mature and widely used. Wet desulfurization technology is relatively mature and reliable in production and operation. It has always occupied a major position in many desulfurization technologies.
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