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›› 2006, Vol. 6 ›› Issue (5): 718-723.

• 反应与分离 • 上一篇    下一篇

Experimental and Theoretical Studies on Desulfurization Efficiency of Dual-alkali FGD System in a RST Scrubber

莫建松,吴忠标,程常杰,李福才,官宝红,赵伟荣   

  1. 浙江大学环境工程研究所
  • 出版日期:2006-10-20 发布日期:2006-10-20

Experimental and Theoretical Studies on Desulfurization Efficiency of Dual-alkali FGD System in a RST Scrubber

MO Jian-song,WU Zhong-biao,CHENG Chang-jie,LI Fu-cai,GUAN Bao-hong,ZHAO Wei-rong   

  1. Department of Environmental Engineering, Zhejiang University
  • Online:2006-10-20 Published:2006-10-20

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摘要： The effects of operating parameters on desulfurization efficiency of a dual-alkali FGD process in a rotating-stream-tray (RST) scrubber are investigated. A dimensionless factor, e, is proposed in this study to predict desulfurization efficiency of this dual-alkali FGD system. e represents the desulfurization ability of a dual alkali FGD system, determined by five main operating parameters such as sodium ion concentration, ratio of absorbent flow rate to flue gas flow rate, pH value of absorbent solution, ratio of sulfate ion to total sulfur ion in absorbent solution, and sulfur dioxide concentration of inlet flue gas. The empirical expression for predicting desulfurization efficiency at different temperatures is obtained through the experimental study and theoretical calculation. It provides useful guide for engineering design.

关键词: desulfurization, efficiency, dimensionless factor, dual-alkali FGD, RST scrubber

Abstract: The effects of operating parameters on desulfurization efficiency of a dual-alkali FGD process in a rotating-stream-tray (RST) scrubber are investigated. A dimensionless factor, e, is proposed in this study to predict desulfurization efficiency of this dual-alkali FGD system. e represents the desulfurization ability of a dual alkali FGD system, determined by five main operating parameters such as sodium ion concentration, ratio of absorbent flow rate to flue gas flow rate, pH value of absorbent solution, ratio of sulfate ion to total sulfur ion in absorbent solution, and sulfur dioxide concentration of inlet flue gas. The empirical expression for predicting desulfurization efficiency at different temperatures is obtained through the experimental study and theoretical calculation. It provides useful guide for engineering design.

Key words: desulfurization, efficiency, dimensionless factor, dual-alkali FGD, RST scrubber