In recent years

microwave enhanced chemical reaction has been widely used in the chemistry technology of biodiesel. There are some limitations in the study of microwave technology in chemical engineering applications. The dielectric properties of materials are one of the most important factors. Based on the transesterification reaction system of methanol and rapeseed oil with self-made catalyst

the dielectric constant of methanol and rapeseed oil transesterification system under different reaction conditions was measured by vector network analyser. The effects of reaction temperature

molar ratio of methanol to oil and the dielectric properties of the catalyst

were discussed based on experimental results. Combined with the kinetics of transesterification reaction

the influence of reaction temperature on the dielectric properties was discussed to provide material dielectric information for multi-physics simulation of transesterification under microwave heating.