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旋转填充床微观混合的沿程实验研究
引用本文:杨海健,陈建峰,初广文.旋转填充床微观混合的沿程实验研究[J].北京化工大学学报(自然科学版),2007,34(4):363-366.
作者姓名:杨海健  陈建峰  初广文
作者单位:北京化工大学1化学工程学院; 2教育部超重力工程研究中心, 北京100029
摘    要:微观混合的研究对于更好地认识和处理一些受其影响的快速反应过程(聚合、结晶等)具有重要的指导意义。通过设计一台能实现沿程取样的旋转填充床,同时通过采用一种平行竞争微观混合体系 碘化物 碘酸盐反应体系,考察了填料的不同径向位置离集指数的分布及各操作参数对旋转填充床微观混合效率的影响。本文第一次从实验上证实了旋转填充床填料的端效应区在强化微观混合方面的重要作用,系统的总结了各操作参数对微观混合的影响。与其他反应器相比,旋转填充床具有更好的微观混合效率。

关 键 词:旋转填充床  微观混合  碘化物  碘酸盐体系  离集指数  旋转填充床  微观混合    碘化物  碘酸盐体系    离集指数
修稿时间:2007-03-12

A systematic experimental study of the micromixing efficiency of a rotating packed bed
YANG HaiJian,CHEN JianFeng,CHU GuangWen.A systematic experimental study of the micromixing efficiency of a rotating packed bed[J].Journal of Beijing University of Chemical Technology,2007,34(4):363-366.
Authors:YANG HaiJian  CHEN JianFeng  CHU GuangWen
Affiliation:1 College of Chemical Engineering; 2 Research Center of the Ministry of Education for High Gravity Engineering and Technology; Beijing University of Chemical Technology, Beijing 100029, China
Abstract:Studies of micromixing(mixing at the molecular scale) can give an indication of the best way to carry out important processes such as polymerization,crystallization and competing fast chemical reactions.By adopting the iodide-iodate reaction system as an index,the distribution of segregation index(XS) along the radial direction of packing and the effects of different operational conditions(e.g.rotational speed,flow rates) on micromixing efficiency of a novel rotating packed bed(RPB) have been investigated.As a result,the importance of inlet region packing in increasing the micromixing efficiency in an RPB was confirmed experimentally for the first time.Compared with other mixing devices,the RPB has a distinct advantage in terms of improving micromixing efficiency.
Keywords:rotating packed bed(RPB)  micromixing  iodide-iodate  segregation index
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