The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering
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May 13-17, 2007
The sectionalization of conventional bubble columns to tray partitioned bubble column using perforated trays has been used to investigate the effect of tray hole diameter, tray open area, superficial gas velocity, gas sparger design, and liquid phase properties on gas holdup, residence time distribution (RTD), and overall liquid-phase backmixing. The erected column is sectionalized into three stages using two perforated plates of different holes diameter and open free area. Overall gas holdup is measured experimentally by bed expansion technique. Liquid backmixing, mixing time and axial dispersion model (ADM) is determined using tracer response experiments. In general, it seems that the partitioned trays are significantly increases the overall gas holdup. Tray holes diameter and superficial gas velocity are found to be the most important factors on gas holdup. Axial mixing of the liquid phase is numerously reduced by the presence of partitioned trays. Comparison of the results with the published data of other authors indicates good agreement which enforced the reliability and confidentiality of computational procedure to be used for design and scale-up purposes.
Nahidh W. Mecaial and Burhan Sadik, "Hydrodynamic and RTD of Sectionalized Bubble Column" in "The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering", Franco Berruti, The University of Western Ontario, London, Canada; Xiaotao (Tony) Bi, The University of British Columbia, Vancouver, Canada; Todd Pugsley, University of Saskatchewan, Saskatoon, Saskatchewan, Canada Eds, ECI Symposium Series, (2007). http://dc.engconfintl.org/fluidization_xii/33