Investigation of the Kinetics of Sulfite Oxidation on by-Production Recovery Process in WFGD

Abstract:

The limestone-lime washing technology is the most widely used WFGD process, which normally we adopt to control the discharge of SO2 caused by coal’s combustion. Through the research on the oxidation kinetics of sulfite in this paper, it is indicated that macroscopic chemical reaction which responses to rate of sulfite is 1/2. And the results of orthogonal test can be concluded that: to the extent influence of oxidization reaction rate, the influences of temperature is the most significant, and influences of stirred speed is nearly negligible. The optimized operation factors may be shown as that temperature is controlled at 40°C, air ventilation is at 88ml/min,pH is 4.5 and stir speed is 500 r/min.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 1980-1985
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.1980
• Online since: December 2012
• Authors: Hong Jian Xu*, Shu Fang Wang, Wei Guo Pan, Rui Tang Guo
• Keywords: Kinetic, Orthogonal Test, Oxidation, Sulfite, WFGD

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