Cylindrical Resonator-Type Microwave Heating Reactor with Real-Time Monitoring Function of Dielectric Property Applied to Drying Processes,Industrial & Engineering Chemistry Research

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Cylindrical Resonator-Type Microwave Heating Reactor with Real-Time Monitoring Function of Dielectric Property Applied to Drying Processes
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-06-16 , DOI: 10.1021/acs.iecr.1c00569
Masato Miyakawa ₁ , Shinya Kanamori ₂ , Kouki Hagihara ₂ , Atsushi Itagaki ₂ , Takashi Nakamura ₁ , Masateru Nishioka ₁

Affiliation

We developed a cylindrical resonator-type microwave (MW) heating reactor with the function of real-time monitoring of dielectric properties. Using automatic detection and tracking functions of the resonance frequency shift with a variable-frequency semiconductor generator, we estimated qualitative variations of the relative dielectric constant and dielectric loss factor for continuous heating of ethylene glycol without connecting a network analyzer. Additionally, we undertook resin-pellet drying using this reactor with a weight measurement function. The drying state of the resin pellets was estimated using resonance frequency variation. Moreover, differences of moisture reduction and resin-pellet melting were distinguished in situ from variation of the resonance curve corresponding to the S21 parameter.

中文翻译：

具有介电特性实时监测功能的圆柱形谐振器型微波加热反应器应用于干燥过程

我们开发了一种具有实时监测介电特性功能的圆柱形谐振器型微波（MW）加热反应器。使用变频半导体发生器的谐振频移自动检测和跟踪功能，我们估计了在不连接网络分析仪的情况下连续加热乙二醇的相对介电常数和介电损耗因子的定性变化。此外，我们使用具有重量测量功能的反应器进行树脂颗粒干燥。使用共振频率变化估计树脂颗粒的干燥状态。此外，通过对应于 S21 参数的共振曲线的变化，原位区分水分减少和树脂颗粒熔化的差异。

更新日期：2021-06-30

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