Experimental and analysis study on dispersion of phases in an Ebullated Bed Reactor
Department of Chemical Engineering, University of Technology, P.O. Box 18310, Baghdad, Iraq
2 Directorate of Technical Education, Ministry of Education, Baghdad, Iraq
* Corresponding author: firstname.lastname@example.org
Accepted: 17 December 2018
The effectiveness and performance of industrial hydro-processing Ebullated Bed Reactors (EBRs) are highly dependent on the bed hydrodynamics and operating conditions. In present work, hydrodynamics of EBRs was studied in a cold model experimental setup using air–water–solid particles system. Pressure gradient method and Residence Time Distribution (RTD) technique were used to estimate the individual holdups, and dispersion coefficients in the lab-scale ebullated bed column. System Hydraulic Efficiency (HEF) was also estimated. The results showed that liquid internal recycle ratio, which characterized the EBRs, has a predominant effect on the individual holdups and dispersion coefficients. Empirical correlations were developed for prediction of phase holdups, and dispersion coefficients with good accuracy.
© M.F. Abid et al., published by IFP Energies nouvelles, 2019
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