Journal ArticleDOI
Pressure drop in gas‐liquid downflow through packed beds
P. S. T. Sai,Y. B. G. Varma +1 more
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In this paper, pressure drop in cocurrent gas-liquid downflow through packed beds was experimentally measured for nonfoaming, foaming Newtonian, and non-Newtonian liquids.Abstract:
Pressure-drop in cocurrent gas-liquid downflow through packed beds was experimentally measured for nonfoaming, foaming Newtonian, and non-Newtonian liquids. The variables include the column diameter, packing size and shape, flow rates of the phases, and their physical properties. Unified correlations are presented for the data of the present study as well as data available in literature in terms of Lockhart-Martinelli parameters and flow variables and packing characteristics. The data were modeled using a dynamic interaction model.read more
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Journal ArticleDOI
Experimental study of a trickle-bed reactor operating at high pressure: two-phase pressure drop and liquid saturation
TL;DR: In this article, the effect of pressure on the hydrodynamics of trickle-bed reactors is investigated, and two new correlations for the pressure drop and the liquid hold-up for non-foaming liquids are proposed; they are based on 1500 experimental results.
Journal ArticleDOI
Modelling of the hydrodynamics of the cocurrent gas–liquid trickle flow through a trickle-bed reactor
TL;DR: In this article, a physical model is developed to predict the hydrodynamic parameters of steady-state cocurrent gas-liquid flow through trickle-bed reactors operating in the trickle flow regime.
Journal ArticleDOI
Pressure drop and liquid holdup in high pressure trickle-bed reactors
TL;DR: In this paper, the effect of high pressure on pressure drop and liquid holdup in the trickle flow regime was investigated using a phenomenological analysis based on annular two-phase flow in a slit.
Journal ArticleDOI
A two-fluid hydrodynamic model for the transition between trickle and pulse flow in a cocurrent gas–liquid packed-bed reactor
TL;DR: In this article, a two-dimensional hydrodynamic model of cocurrent gas-liquid downflow through packed-bed reactors operating in the trickle flow regime is developed on the basis of a mechanistic approach.
Journal ArticleDOI
Trickle bed reactors
TL;DR: The analysis and design of multiphase reactors is one of the most intensely studied areas of chemical reaction engineering as discussed by the authors, and it may not always be clear which reactor type is most advantageous for a particular reaction.
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