安全、健康和环境2024，Vol.24Issue(4)：35-42,8.DOI:10.3969/j.issn.1672-7932.2024.04.006
内置渐变结构介质天线的微波反应器加热性能研究
Study on Heating Performance of Microwave Reactors with Built-in Gradient Structure Dielectric Antennas
摘要
Abstract
Catalytic oxidation is the mainstream tech-nology for destroying low-concentration VOCs in the existing market.The existing process uses electric heating to heat the catalytic bed layer,but its short-comings are low efficiency and slow heating rate.Mi-crowave selective heating of catalytic bed has the ad-vantages of fast heating rate and low energy consump-tion.However,as a new heating method,microwave heating in cavity still has some problems,such as non-uniformity,low efficiency and thermal runaway,which limit the large-scale application of microwave heating.Based on the impedance matching theory,a new microwave heating system including dielectric antenna radiator was designed to heat the catalytic bed.A multi-physics model based on electromagnet-ism and solid heat transfer was established,and nu-merical calculation and experimental research were carried out by COMSOL.The results showed that the experimental results agreed with the simulation re-sults,and the system can achieve high efficiency and high uniformity heating of the catalytic bed with low risk of thermal runaway.This research provided a new idea and method for the development of micro-wave heating technology.关键词
低浓度可挥发性气体/介质天线/微波加热/微波反应器/催化床层/热失控/阻抗匹配理论Key words
low concentration of volatile gases/die-lectric antenna/microwave heating/microwave reac-tor/catalytic bed/thermal runaway/impedance matching theory分类
信息技术与安全科学引用本文复制引用
尹树孟..内置渐变结构介质天线的微波反应器加热性能研究[J].安全、健康和环境,2024,24(4):35-42,8.基金项目
中国石化炼油事业部项目(323039),油田轻烃挥发气高效回收及抑制技术研发. （323039）
