In order to clarify the moisture changes during rapeseed microwave pretreatment process and establish rapeseed microwave pretreatment drying model, the changes in moisture content, moisture ratio and water loss rate of rapeseed after microwave pretreatment were investigated at a layer thickness of 12 mm and different microwave powers (1.0,1.5,2.0 kW), and at a microwave power of 1.5 kW and different layer thicknesses (6,12,18 mm), and data fitting was carried out with the common drying models of exponential model, single diffusion model and Page model. The results showed that the higher the microwave power and the thinner the material layer, the faster the moisture loss of rapseed and the shorter the pretreatment time. The changes in moisture of rapeseed during the microwave pretreatment process fitted best with the Page model. |