微波辅助固体催化剂下液相反应的多物理场耦合计算  

Multiphysical Field Coupling Calculation of Microwave-Assisted Liquid Phase Reaction with Solid Catalyst

作　　者：李亚芝 朱铧丞 黄卡玛[1] LI Ya-zhi;ZHU Hua-cheng;HUANG Ka-ma(College of Electronics and Information Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学电子信息学院,四川成都610065

出　　处：《真空电子技术》2020年第6期77-81,共5页Vacuum Electronics

基　　金：自然科学基金青年基金项目(61601312)。

摘　　要：本文针对传统固液反应耗时长、速率较慢、固液不易分离等问题,提出了一种微波加热固体催化剂下液相反应的方法,该方法可大幅缩短反应时间,提高生产率,实现反应物的高效率转换。建立了基于电磁场、化学反应系统、多孔介质流体流动场、传热场的多物理场仿真模型来模拟微波加热固体催化剂辅助进行液相合成反应的过程,并且基于该模型分析了不同流速与不同功率下反应液的温升情况。该微波加热模型对此类化学反应的优化生产具有重要的指导意义。In order to solve the problems of traditional solid-liquid reaction,such as long time-consuming,slow reaction rate and difficult separation of solid and liquid,a liquid-phase reaction method with microwave heating solid catalyst is proposed.This method can greatly shorten reaction time,improve productivity efficiency and realize high-efficiency conversion of reactants.A multi physical field simulation model based on electromagnetic field,chemical reaction system,porous media fluid flow field and heat transfer field was established to simulate the process of microwave heating solid catalyst assisted liquid-phase synthesis reaction.Based on the model,the temperature rises of the reaction liquid at different flow rates and different powers were analyzed.The microwave heating model has important guiding significance for the optimization of this kind of chemical reaction.

关 键 词：多孔介质 微波辅助 多物理场耦合计算 固液反应 

分 类 号：TM925.54[电气工程—电力电子与电力传动]