External-loop airlift magnetically stabilized bed—minimum stabilization and fluidization conditions--颗粒学报PARTICUOLOGY

Hristov, J. (2005). External-loop airlift magnetically stabilized bed—minimum stabilization and fluidization conditions. China Particuology, 3(4), 197-203. https://doi.org/10.1016/S1672-2515(07)60186-9

External-loop airlift magnetically stabilized bed—minimum stabilization and fluidization conditions

Jordan Hristov ^*

Department of Chemical Engineering, University of Chemical Technology and Metallurgy, 1756 Sofia, 8 “Kliment Ohridsky”, Blvd., Bulgaria

10.1016/S1672-2515(07)60186-9

Volume 3, Issue 4, August 2005, Pages 197-203

Received 20 June 2005, Accepted 11 July 2005, Available online 14 December 2007.

E-mail: jordan.hristov@mail.bg

Highlights

Abstract

Experimental study of an airlift with a magnetically stabilized bed in the riser bottom has been performed. External magnetic field allows easy control of magnetized bed structure and liquid circulation rate. Minimum stabilization and fluidization conditions have been determined experimentally and by a three-line graphical method. Semi-empirical data correlations of sections of the experimental curves have been performed. Scaling relationships known from non-magnetic airlift are applicable too, but with the assumption that the magnetic field affects the loop friction coefficient only.

Graphical abstract

Keywords

minimum fluidization; magnetic field; stabilized beds; gas-liquid-solid fluidization; airlift reactor

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