Analysis of Alumina Red Mud Wet Flue Gas Desulfurization (FGD) Technology
2013; Trans Tech Publications; Volume: 634-638; Linguagem: Inglês
10.4028/www.scientific.net/amr.634-638.198
ISSN1662-8985
AutoresHao Pang, Xue Ping Li, Su Jing Jin, Wei Peng, Hui Ping Li,
Tópico(s)Bauxite Residue and Utilization
ResumoAlumina red mud from aluminum industry has not been utilized effectively due to its strong alkaline, and SO 2 is an industrial pollutant which mainly produced by thermal power plants. For the comprehensive utilization of waste, the mineral component, chemical composition, grain size and microstructure of alumina red mud from Henan Branch of China Aluminum Co. were determined in this research. Thermodynamics analysis of FGD related desulfurization mechanism was studied as well. The self-designed glass absorption device 1700×60mm with its accessories was installed on-the-spot of Zhengzhou Xinli Electric Power Company Limited. The cyclic absorption experiments were conducted and the influential factors such as liquid-solid ratio (R L/S ), empty tower gas velocity (V(SO 2 )), SO 2 concentration (c(SO 2 )), and liquid-gas ratio (R L/G ) were examined through the orthogonal tests. The maximum efficiency of FGD is 97.5% under the optimal conditions: R L/S is 7:1 (g/g), V(SO 2 )is 0.35m/s, c(SO 2 ) is 1700mg/m 3 and R L/G is 12:1 (L/m 3 ).
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