Characterization of micro-mixing in a novel impinging streams reactor  

作　　者：Hui HU Zhiming CHEN Zhen JIAO 

机构地区：[1]School of Chemistry and Chemical Engineering,Southeast University,Nanjing 210096,China

出　　处：《Frontiers of Chemical Science and Engineering》2009年第1期58-64,共7页化学科学与工程前沿（英文版）

摘　　要：This paper presents an experimental investiga-tion of a novel impinging stream reactor(ISR)with the aim of high mixing intensity.The integral mixing quality in the reactor was measured with the iodide-iodate reaction and showed excellent mixing performance.The impact of the operating parameters,such asfluxes,circulation and inter-nozzle distances,was investigated in terms of segregation index.The results showed that the increase offlux,the decrease of inter-nozzle distance and a suitable circulation can improve the micro-mixing efficiency.Based on turbulence theory,it was estimated that the characteristic micro-mixing time was 0.002–0.02 s,which was much shorter than that in the stirred tank reactor.The micro-mixing time was related to the segregation index,which was in good agreement with those in the literature.

关 键 词：MICRO-MIXING impinging streams reactor turbulent mixing mass transfer 

分 类 号：O35[理学—流体力学]