文献类型：期刊文献

中文题名：三相下喷式环流反应器的气含率和传质性能

英文题名：Studies on Gas Holdup and Mass Transfer 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：23

期号：5

起止页码：503

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;EI(收录号：1998034139996);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;气含率;传质系数

外文关键词：reversed flow jet loop reactor; gas holdup; mass transfer coefficient; non Newtonian fluids; 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的气含率和传质特性进行了实验研究。讨论了气速、液速、导流筒直径与反应器直径比、固体装填量、羧甲基纤维素钠溶液浓度及其流变特性对它们的影响。实验结果表明，气含率和传质系数随气速的增加而增加，而液速对其影响较小。在实验条件下，发现最优的导流筒直径与反应器直径比在０．４～０．５这一范围，最优的固体装填量约为φ＝０．０３，同时提出了气含率和容积传质系数的经验关联式。
Gas holdup and mass transfer of a reversed flow jet loop reactor in gas liquid solid three phase with non Newtonian fluids were examined experimentally. The influence of gas flow rate, liquid flow rate, draft tube to the reactor diameter, solid volume fraction, CMC solution concentration and its rheological property on gas holdup and volumetric mass transfer coefficient were discussed. It was observed that gas holdup and volumetric mass transfer coefficient increased with increasing gas flow rate and that liquid flow rate had little infuence on gas holdup and a little influence on volumetric mass transfer coefficient. It was also found that the optimum draft tube to reactor diameter ratio was in the range of 0.4 to 0.5, and the optimum solid volume fraction was about 3% under the experimental condition. Empirical corrections are presented for the gas holdup and volumetric mass transfer coefficient, which may be useful in the design of the reactor.