新型微通道反应器内非均相体系混合效果研究  

Research on mixing effect of nonhomogeneous system in a novel micro-channel reactor

作　　者：刘建武[1] 张跃[1] LIU Jian-wu;ZHANG Yue(College of Life Science and Pharmacy,Changzhou University,Changzhou 213164,Jiangsu Province,China)

机构地区：[1]常州大学制药与生命科学学院,江苏常州213164

出　　处：《化学工程》2020年第10期6-10,共5页Chemical Engineering(China)

基　　金：江苏省产学研前瞻性联合研究项目(BY2014037-19)。

摘　　要：在氯苯-水非均相体系下,以醋酸为相间传质因子,雷诺数Re、毛细数Ca、韦伯数Wb、传质效率E和总体积传质系数K La为评价准数,考察了康宁G1微通道反应器内液-液两相流体流型以及流速对液液非均相体系传质效率的影响。结果表明:在不同流体流速变化区间内,在直行通道中特定的条件下可以形成稳定的子弹流、子弹单滴混合流、三相并行流等流型,而在心型通道中一直以湍流的形式存在,随着流速的增大及流型的转变,相界面传质面积不断扩大,提高了混合过程的总体积传质系数和传质效率。The effects of flow pattern and flow rate on the mass transfer efficiency of liquid-liquid two-phase flow in Corning G1 micro-channel reactor were investigated with heterogeneous system of chlorobenzene-water and acetic acid as the inter phase mass transfer factor,reynolds number Re,capillary number Ca,weibull number Wb,mass transfer efficiency E and total volume mass transfer coefficient K La as the evaluation criteria.The result shows that different flow patterns including the steady stream of bullets,bullet single drop mixed flow and three-phase parallel flow pattern forms under straight channel conditions,but the form of turbulence is presented under heart-shaped channel conditions,flow patterns change with the raise of flow velocity,which resulted in an increasing in the two-phase interface area,mass transfer efficiency and overall volumetric mass transfer coefficient.

关 键 词：微通道 非均相体系 流体流型 传质效果 

分 类 号：O27.35[理学—数学]