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《Power System Engineering》 2011-01
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Characteristics of Alkaline Industrial Wastes in Wet Flue Gas Desulphurization

ZHAO Jian-li,HAN Kui-hua,FAN Zhao-yan,et al.  
The characteristics of white sludge,carbide slag,alkali slag and salt slag in wet flue gas desulphurization were investigated by using XRD and wet flue gas experiment,and the comparative analysis among limestone and the above four wastes was researched.The results show that the above four alkaline industrial wastes can be used as wet flue gas desulphurization sorbent.Under experimental conditions,the desulphurization performance of the wastes are highest in the temperature condition of 30℃.The higher the reaction temperature is,the lower the desulphurization efficiency.The recommended temperature for the above four wastes are 30-60℃in scrubbing reaction area.The higher the SO_2 entrance concentration,the lower the desulphurization efficiency,and SO_2 entrance concentration influences white sludge and salt slag slightly.XRD research shows that the main desulphurization components in alkaline industrial wastes are Ca-based materials.The desulphurization capabilities of the alkaline wastes in the descending order are carbide slag,white sludge, alkali slag and salt slag.
【Fund】: 山东省科技攻关计划项目(2007GG20006013)
【CateGory Index】: X701.3
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