Desorption of a fixed-bed adsorber by ultrasound

被引:32
作者
Breitbach, M [1 ]
Bathen, D [1 ]
Schmidt-Traub, H [1 ]
机构
[1] Univ Dortmund, Dept Chem Engn, FB CT, Chair Plant Design,LS AT, D-44221 Dortmund, Germany
关键词
polymeric resins; ultrasound; desorption; hot water desorption;
D O I
10.1016/S0041-624X(02)00198-1
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Adsorption processes offer the possibility to remove trace impurities of liquid process streams. An important step in adsorption processes is the regeneration of the adsorbent as it does not only affect the adsorption-desorption cycle but also the expenses of the following process steps. In this study, various desorption experiments of a loaded polymeric resin have been conducted. They were performed with cold and hot water as well as with ultrasound at different frequencies and intensities. The results indicate, that an important factor of ultrasound enhanced desorption is the temperature rise due to ultrasonication. But as regeneration is more effective at higher frequencies even though temperatures inside the column are lower, another ultrasonic effect occurs during ultrasonic desorption. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:679 / 682
页数:4
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