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含湿Ca(OH)2颗粒脱硫反应特性的模型研究
引用本文:高翔,骆仲泱,陈亚非,周劲松,李绚天,倪明江,岑可法.含湿Ca(OH)2颗粒脱硫反应特性的模型研究[J].环境科学学报,1999,19(4):351-356.
作者姓名:高翔  骆仲泱  陈亚非  周劲松  李绚天  倪明江  岑可法
作者单位:浙江大学热能工程研究所,杭州,310027
基金项目:中国科学院资助项目,29277275,
摘    要:在半干法脱硫装置中脱反应主要表现为湿Ca(OH)2颗粒与SO2的反应,在液相反应溶解和传质理论基础上,通过对含湿Ca(OH)2颗粒内反应机理的研究分析提出了含湿Ca(OH)2颗粒相比发生明显变化。

关 键 词:含湿Ca(OH)2颗粒  脱硫反应  模型
收稿时间:1997/11/25 0:00:00
修稿时间:1998/3/22 0:00:00

Modeling the reactivity of aqueous Ca(OH)2 particle
GAO Xiang,LUO Zhongyang,CHEN Yafei,ZHOU Jinsong,LI Xuantian,NI Mingjiang and CEN Kefa.Modeling the reactivity of aqueous Ca(OH)2 particle[J].Acta Scientiae Circumstantiae,1999,19(4):351-356.
Authors:GAO Xiang  LUO Zhongyang  CHEN Yafei  ZHOU Jinsong  LI Xuantian  NI Mingjiang and CEN Kefa
Institution:Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027,Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027,Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027,Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027,Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027,Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027 and Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027
Abstract:The reaction between aqueous Ca(OH)\-2 particle and SO\-2 is the mainly sulfation reaction in semi\|dry FGD system.Based on reaction,dissolution and mass transfer theory and by the way of reaction mechanism analysis.A desulphurization model of aqueous Ca(OH)\-2 particle is proposed.It can be found that the sulfation reaction mechanism of aqueous Ca(OH)\-2 particle is obviously different from dry Ca(OH)\-2 particle,and the reaction rate increased with water content in aqueous sorbent and decreased with particle size and conversion ratio.The temperature effect on reaction rate of aqueous sorbent is relatively complex and there is a critical temperature point in the related curve.Below this point,the reaction rate increased with temperature increasing,while alove the point,the reaction rate decreased with the temperature increasing.The results supply the optimum parameters for semi\|dry FGD system designed.
Keywords:aqueous Ca(OH)\-2 particle  desulphurization reaction  model  
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