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Kinetics, Mechanism, and Thermodynamics Studies of Vacuum Drying of Biomass from Taxus chinensis Cell Cultures
Biotechnology and Bioprocess Engineering ( IF 2.5 ) Pub Date : 2020-04-29 , DOI: 10.1007/s12257-020-0055-0
Seok-Soo Kang , Jin-Hyun Kim

In this study, we investigated the kinetics, mechanism, and thermodynamics of vacuum drying and dehydration of plant cells of Taxus chinensis. The efficiency of vacuum drying increased with increases in the drying temperature (45–60°C). When the experimental data were fitted to typical kinetic models for drying, the Modified Page were the most appropriate. Thermodynamic parameters revealed the endothermic, irreversible, and spontaneous nature of the drying. The effective diffusion coefficient (3.6602 × 10−14−10.9810 × 10−14 m2/s) and mass transfer coefficient (2.2536 × 10−11−10.8110 × 10−11 m/s) increased with increasing drying temperature. The small Biot number (2.6167 × 10−2−4.1841 × 10−2) indicated that the process of mass transfer was externally controlled.



中文翻译:

南方红豆杉细胞培养物生物质真空干燥的动力学,机理和热力学研究

在这项研究中,我们研究了红豆杉植物细胞真空干燥和脱水的动力学,机理和热力学。真空干燥的效率随着干燥温度(45–60°C)的增加而增加。当将实验数据拟合为典型的动力学模型进行干燥时,改性页是最合适的。热力学参数显示干燥的吸热,不可逆和自发性质。随着干燥温度的升高,有效扩散系数(3.6602×10 -14 -10.9810×10 -14 m 2 / s)和传质系数(2.2536×10 -11 -10.8110×10 -11 m / s)增大。小比奥数(2.6167×10-2 -4.1841×10 -2)表明传质过程是外部控制的。

更新日期:2020-04-29
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