The investigation of gas holdup distribution in a two-phase bubble column using ultrasonic computed tomography
- 作者：Muhammad Dani Supardan ; Yoshifumi Masuda ; Akinori Maezawa ; Shigeo Uchida
- 关键词：Bubble column ; Gas holdup ; Iterative filtered backprojection ; Ultrasonic computed tomography
- 刊名：Chemical Engineering Journal
- 出版年：2007
- 期刊代码：16_13858947
- 类别：ce
- 出版时间：1 June 2007
- 卷：130
- 期：2-3
- 页码：125-133
- 文件大小：1914 K
摘要
In this study, time-averaged gas holdup distributions were investigated in a 16 cm diameter bubble column for two-phase dispersed system of air–water and air–glycerol solution of 10 wt%by using ultrasonic computed tomography (UCT). A quantitative result of UCT – as a coupling of the ultrasonic transmission method and the iterative filtered backprojection (IFBP) image reconstruction technique – is presented. The UCT results are in a good agreement with those by the bed expansion method. A higher gas holdup in the air–glycerol 10 wt%solution than in the air–water system was observed. The distribution of gas holdup in the column with an attached baffle is also investigated by UCT.