Impact of the Instant Controlled Pressure Drop Treatment on Hot Air Drying of Cork Granules

被引：9

作者：

Abdulla, Galal ^{[1
]}

Belghit, Abdelhamid ^{[1
]}

Allaf, Karim ^{[1
]}

机构：

[1] Univ La Rochelle, LEPTIAB, F-17042 La Rochelle, France

来源：

DRYING TECHNOLOGY | 2010年 / 28卷 / 02期

关键词：

Activation energy; Cork; Diffusivity; Drying; Instant controlled pressure drop (DIC); KINETICS;

D O I：

10.1080/07373930903523829

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Instant controlled pressure drop (DIC) is known to enhance drying kinetics of cork granules. The overall kinetics is limited by the internal mass transfer. Hence, the drying kinetics carried out at 50, 60, and 70 degrees C allows the effective diffusivity values to be determined as 2.63E-10 to 4.50E-10 and 4.34E-10 to 6.99E-10m2s-1 for untreated and DIC-treated cork granules, respectively. Because the temperature dependence is represented by an Arrhenius-type relationship, the activation energy values are determined as 25.29-48.12kJ/mol and 32.43-43.98kJ/mol for untreated and DIC-treated cork granules, respectively.

引用

页码：180 / 185

页数：6

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