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Hydrodynamic study of a flow-rig column by means of a radiotracer technique modelling with DTS-Pro 4

  • Louisa Bounemia EMAIL logo , Chaouki Benazzouz and Mouhamed Belamri
Published/Copyright: July 11, 2024

Abstract

The residence time distribution (RTD) is very reliable, providing valuable information about the performance of process equipment such as reactors and columns. The aim of this work is to study the effect of agitation in the hydrodynamic column of flow-rig. In this case, residence time distribution (RTD) is determined using the radiotracer approach. The radiotracer is the Technetium Tc-99m with half decay 6 h. It also emits gamma rays with an energy of 0.140 MeV. 2 mL of approximately 9 mCi activity Tc-99m was injected inside the column. The results show that in the conditions studied the column presents the anomaly, dead volume. The Intensity function A(t) confirms this result. Agitation has a beneficial effect in the reduction of dead volume. To revise the conception of the column or study other parameters like the variation flow rate can reduce or eliminate the dead volume. The RTD model indicated the column behaved as a Plug flow reactor (PFR) with mixing cells in serie (J = 4) model and the RTD experiment verified the model well.


Corresponding author: Louisa Bounemia, Nuclear Research Centre of Algiers (CRNA), 02, Boulevard Frantz Fanon, PO Box 399, Alger-RP, Algiers, 16000, Algeria, E-mail:

Acknowledgments

The authors would like to thank the radiation protection staff of the Algiers Nuclear Research Centre for the use of radio-active tracing experiments without contamination. (C.R.N.A).

  1. Research ethics: Not applicable.

  2. Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  3. Competing interests: The authors state no conflict of interest.

  4. Research funding: None declared.

  5. Data availability: The raw data can be obtained on request from the corresponding author.

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Received: 2023-09-06
Accepted: 2024-05-22
Published Online: 2024-07-11
Published in Print: 2024-10-28

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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