文献类型：期刊文献

中文题名：三相下喷式环流反应器的传质性能

英文题名：Mass Transfer Property in a Three Phase Reversed Flow Jet Loop Reactor with Non Newtonian Fluids

作者：李永祥[1];程振民[1];蒋正兴[1];袁渭康[1]

机构：[1]华东理工大学联合化学反应工程研究所

年份：1997

卷号：11

期号：4

起止页码：366

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：CSTPCD;;EI(收录号：1998034142147);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：下喷式;环流反应器;传质系数;非牛顿流体;三相

外文关键词：Reversed flow jet loop reactor, Mass transfer, Volumetric mass transfer coefficient, Non Newtonian fluid, Gas liquid solid three phase

摘要：在三相非牛顿型流体体系中，对下喷式环流反应器传质特性进行了实验研究。讨论了表观气速、能量耗散速率、导流筒直径与反应器直径比、喷嘴直径、导流筒下端距反应器底部的距离、固体装填量、羧甲基纤维素钠（ＣＭＣ）溶液浓度及其流变特性对它的影响。实验结果表明，容积传质系数随表观气速和能量耗散速率的增加有所增加，在实验条件下，发现最优的导流筒直径与反应器直径比在０．４～０．４５这一范围、固体装填量大约为３％（体积百分比）、导流筒下端距反应器底部的距离为０．０８ｍ左右。同时提出了容积传质系数的经验关联式。
Volumetric mass transfer coefficient was measured in a gas liquid solid three phase reversed flow jet loop reactor with Non Newtonian fluid. The influences of superficial gas velocity, energy dissipation rate, draft tube to the reactor diameter, liquid nozzle diameter, distance between the lower edge of the draft tube and the impact plate, solid volume fraction, CMC solution concentration and its rheological property on volumetric mass transfer coefficient were discussed. It was observed that volumetric mass transfer coefficient increased with increasing gas flow rate and energy dissipation rate. It was also found that the optimum draft tube to reactor diameter ratio was in the range of 0.4 to 0.45, the optimum solid volume fraction was about 3%, and the optimum distance between the lower edge of the draft tube and the impact plate was about 0.08m on the experimental condition. A empirical correction is presented for the volumetric mass transfer coefficient, which may be useful to the design of the reactor.