Experimental Study on Enhancing Slurry Dewatering Efficiency of the Carbide Slag Flue Gas Desulfurization Device

Abstract:

Carbide slag is adopted as flue gas desulfurization agent in Ning Xia Western Thermal Power Plant.During the operation process,flue gas desulfurization efficiency and slurry dewatering efficiency can not meet the requirement at the same time. Through the analysis of the main influence factors,the work in the laboratory is going to improve calcium sulrite oxidation effect .The experimental results are characterized by crystal diffraction and scanning electron microscope. Through the orthogonal experiment,the optimun conditions are obtained:pH of the limestone slurry is 5.1,temperature is 40°C,the oxidation air volume is 45L/min,solid content of the slurry is 11%.On this condition,not only the flue gas desulfurization efficiency can be guaranteed,but the calcium sulfite is good to calcium sulfate conversion,then the problem of slurry dewatering efficiency is resolved.Application to engineering practice,very good results are achieved

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 2542-2546
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.2542
• Online since: August 2013
• Authors: Mei Dong, Hui Liang Zhou
• Keywords: Calcium Sulrite Oxidation, Desulfurization Efficiency, Optimun Conditions, Slurry Dewatering Efficiency

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