定-转子反应器气液传质特性实验研究Experimental Investigation on Gas-Liquid Mass Transfer Characteristics of Rotor-Stator Reactor
林海霞,宋云华,初广文,陈建铭
摘要(Abstract):
采用氮气-水脱氧体系,在转子转速为300~1450r·min-1、水流量为0.75~2.0m3·h-1、氮气流量为1.5~4.0m3·h-1的实验条件下,研究了定-转子反应器(RSR)的气液传质特性,初步考察了操作参数及结构参数对RSR气液传质性能的影响。实验结果表明:液体出口氧含量随转子转速(N)、气体流量(Gv)的增加而降低,随液体流量(GL)的增加而升高,液相体积传质系数(kxa)随N,GL和GV的增加而增大。结构参数对定-转子反应器的气液传质特性具有显著的影响,定-转子反应器内部的转子层数越多,传质单元数NTU越大,传质效果越好。最后采用因次分析法推导出了定-转子反应器液相体积传质系数关联式,且进行了统计检验,所得关联式与实验数据拟合较好。
关键词(KeyWords): 定-转子反应器;气液传质特性;操作参数;结构参数;关联式
基金项目(Foundation):
作者(Author): 林海霞,宋云华,初广文,陈建铭
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