Effect of ultrasound on liquid phase adsorption of azeotropic and non-azeotropic mixture

被引：6

作者：

Bono, Awang ^{[1
]}

Sarbatly, Rosalam ^{[1
]}

Krishnaiah, Duduku ^{[1
]}

San, Phong Ming ^{[1
]}

Yan, Farm Yan ^{[1
]}

机构：

[1] Univ Malaysia Sabah, Chem Engn Programme, Kota Kinabalu 88999, Sabah, Malaysia

来源：

CATALYSIS TODAY | 2008年 / 131卷 / 1-4期

关键词：

adsorption isotherm; relative adsorption; monolayer adsorption; pseudo-ideal system;

D O I：

10.1016/j.cattod.2007.10.084

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Relative adsorption experiments of azeotropic and non-azeotropic mixture were separately conducted at constant temperature with and without the presence of ultrasound. The ultrasound wave was applied at a frequency of 21 kHz with 25% amplitude at atmospheric pressure. The adsorption of azeotropic and non-azeotropic mixture was analysed using monolayer adsorption theory and at lower liquid equilibrium concentration it followed a Langmuir type of equation. The adsorptive capacity of azeotropic and non-azeotropic mixtures on activated carbon was found to decrease but the selectivity was increased. The result also showed that the azeotropic point of relative adsorption was noticeably moved due to the ultrasound effect. (C) 2007 Published by Elsevier B.V.

引用

页码：472 / 476

页数：5