INFLUENCE OF ADSORPTION DESORPTION-KINETICS ON THE PERFORMANCE OF CHROMATOGRAPHIC PROCESSES USING LARGE-PORE SUPPORTS

被引:34
作者
RODRIGUES, AE
RAMOS, AMD
LOUREIRO, JM
DIAZ, M
LU, ZP
机构
[1] Laboratory of Separation and Reaction Engineering, University of Porto, School of Engineering
关键词
D O I
10.1016/0009-2509(92)85118-U
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Large-pore packings are being widely used for bioseparations, e.g. high-pressure liquid chromatography and also in some gas-phase applications. Most studies are based on the assumption of instantaneous equilibrium at the pore-solid interface. This paper shows how adsorption-desorption kinetics influences the performance of chromatographic processes measured by the height equivalent to a theoretical plate (HETP). A criterion is derived allowing us to predict when the assumption of instantaneous equilibrium at the pore-solid interface is valid.
引用
收藏
页码:4405 / 4413
页数:9
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