The use of ultrasound probes to monitor multi-phase behavior in opaque systems--颗粒学报PARTICUOLOGY

Kong, W., Li, S., Ke, H., Zhang, H., & Baeyens, J. (2019). The use of ultrasound probes to monitor multi-phase behavior in opaque systems. Particuology, 45, 91-97. https://doi.org/10.1016/j.partic.2018.05.009

The use of ultrasound probes to monitor multi-phase behavior in opaque systems

Weibin Kong ^a, Shuo Li ^b, Hui Ke ^b, Huili Zhang ^a *, Jan Baeyens ^{a c d *}

a College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
b College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
c European Powder and Process Technology, 3120 Tremelo, Belgium
d Beijing Advanced Innovation Centre for Smart Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China

10.1016/j.partic.2018.05.009

Volume 45, August 2019, Pages 91-97

Received 29 December 2017, Revised 24 April 2018, Accepted 1 May 2018, Available online 4 December 2018, Version of Record 10 June 2019.

E-mail: zhhl@mail.buct.edu.cn; Baeyens.J@mail.buct.edu.cn

Highlights

• Non-intrusive ultrasound monitoring technique was used in gas–solid fluidized beds.

• The system was reliable to define bubble frequencies and bed height.

• Data obtained from ultrasound were in good agreement with those from video-imaging and calculations.

Abstract

The detection of phenomena occurring inside multiphase opaque reactors is difficult. The present work investigated the novel application of a non-intrusive ultrasound monitoring technique to the complex case of gas–solid fluidized beds. Comparisons of data obtained from video-imaging and theoretical calculations with the ultrasound signal data demonstrate that the ultrasound system is a reliable means of characterizing essential bubble properties by measuring the point bubble frequency, when applying a special protocol during signal treatment. Additional uses in different multiphase systems are further described.

Graphical abstract

Keywords

Ultrasound monitoring; Non-intrusive; Multiphase system; Opaque

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