高校化学工程学报2017，Vol.31Issue(6)：1318-1326,9.DOI:10.3969/j.issn.1003-9015.2017.06.009
静态混合器强化Ce3+臭氧氧化再生反应研究
Study on Ozone Oxidation Regeneration of Ce3+ Enhanced by a Static Mixer
谢迎新 1刘敬军 1李佳庚 1杨伯伦1
作者信息
- 1. 西安交通大学 化学工程与技术学院,陕西 西安 710049
- 折叠
摘要
Abstract
In order to study the effect of mixing intensification on Ce3+ oxidative regeneration, effects of reactor type, size, and operation conditions on material flow and conversion in SK and SMV static mixers were investigated based on CFD analysis of flow field and concentration field. Meanwhile, the results from SK/SMV static mixers were compared with that from a traditional bubble column. The results show that SK and SMV static mixers provide significant improvement in macroscopic reaction rate of Ce3+ oxidation than that in bubble column reactor, which is caused by the reduction of Hatta number (used to describe gas-liquid mass transfer resistance). Therefore, the Ce3+ oxidation process co-controlled by gas-liquid mass transfer and reaction is transferred to reaction controlled. Simulation results indicate that Ce3+ conversion in both static mixers rapidly reaches 100% under optimal conditions when the reaction temperature is 340 K.关键词
臭氧氧化/静态混合器/CFD模拟/气液反应Key words
ozone oxidation/static mixer/computation fluid dynamics simulation/gas-liquid reaction分类
能源科技引用本文复制引用
谢迎新,刘敬军,李佳庚,杨伯伦..静态混合器强化Ce3+臭氧氧化再生反应研究[J].高校化学工程学报,2017,31(6):1318-1326,9.
