Modeling of drying kinetics of green peas by reaction engineering approach

作者：Gao, Xinyuan; Wang, Jin; Wang, Shaotie; Li, Zhanyong^*

来源：Drying Technology, 2016, 34(4): 437-442.

DOI：10.1080/07373937.2015.1060491

• Activation energy
• fluidized bed drying
• green pea
• reaction engineering approach (REA)

Modeling of particulate or thin-layer drying of materials is necessary to understand the fundamental transport mechanism and a prerequisite to successfully simulate or scale up the whole process for optimization or control of the operating conditions. Simple models with a reasonable physical meaning are effective for engineering purposes. Thin-layer drying of green peas was carried out in a fluidized bed with a newly developed slotted gas distributor. Based on the reaction engineering approach, a drying model of green peas was well established, in which relative activation energy (E-v/E-v,E-b) was correlated with reduced moisture content (X-X-b) at a drying air temperature of 80 degrees C. The drying kinetics of green peas was discussed in terms of activation energy. In addition, activation energy based on a simplified material surface temperature profile was recalculated to evaluate the temperature sensitivity to the model establishment.

• 出版日期2016
• 单位天津科技大学