Experimental and analysis study on dispersion of phases in an Ebullated Bed Reactor

Autor: Abid Mohammad F., Shanain Zainab Y., Abed Kadhim N.
Jazyk: English<br />French
Rok vydání: 2019
Předmět:
Zdroj: Oil & Gas Science and Technology, Vol 74, p 20 (2019)
Druh dokumentu: article
ISSN: 1294-4475
1953-8189
DOI: 10.2516/ogst/2018103
Popis: 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.
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