Journal ArticleDOI
Cocurrent gas—liquid flow in packed columns
B.E.T. Hutton,L.S. Leung +1 more
TLDR
In this article, a model for cocurrent gas liquid flow through a packed bed is proposed for predicting pressure gradient and liquid holdup for both cocurrent upflow and downflow.About:
This article is published in Chemical Engineering Science.The article was published on 1974-08-01. It has received 31 citations till now. The article focuses on the topics: Packed bed & Pressure gradient.read more
Citations
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Journal ArticleDOI
Pressure drop and liquid holdup for two-phase concurrent flow in packed beds
Vito Specchia,Giancarlo Baldi +1 more
TL;DR: In this paper, a correlation valid for a free liquid trickling, modified in order to take into account the effect of the pressure drop, is proposed and used to correlate liquid holdup in the presence of a concurrent gas flow.
Journal ArticleDOI
Polymer mechanochemistry: techniques to generate molecular force via elongational flows
Preston A. May,Jeffrey S. Moore +1 more
TL;DR: This tutorial review will discuss progress in the field of polymer mechanochemistry as well as survey the techniques used to generate elongational flow fields, and highlight Ultrasonication as the technique that has been widely adopted to screen mechanophore reactivity in solution.
Journal ArticleDOI
Hydrodynamics in a cocurrent gas-liquid trickle bed at elevated pressures
TL;DR: In this article, the influence of the gas density on the liquid holdup, the pressure drop, and the transition between trickle and pulse flow has been investigated in a tricklebed reactor operating up to 7.5 MPa and with nitrogen or helium as the gas phase.
Journal ArticleDOI
Multiphase Catalytic Packed-Bed Reactors
TL;DR: A multiphase caralytic packed-bed as mentioned in this paper was used in the Reppe-Buna synthesis for the first time in the early 1970s and has been used in a variety of applications, such as liquid-phase catalytic hydrocracking and brryaadiol synthesis.
Journal ArticleDOI
Trickle-bed root culture bioreactor design and scale-up: growth, fluid-dynamics, and oxygen mass transfer.
TL;DR: These results demonstrate that trickle‐bed reactor systems can sustain tissue concentrations, growth rates and volumetric biomass productivities substantially higher than other reported bioreactor configurations.
References
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Journal ArticleDOI
The continuous phase heat and mass transfer properties of dispersions
P.H. Calderbank,M.B. Moo-Young +1 more
TL;DR: In this paper, the authors measured the interfacial area in gas-liquid dispersions and correlated the data with other published data for heat and mass transfer in liquid-liquid and solid-gas dispersions in which the dispersed phases are free to move under the action of gravity.
Journal ArticleDOI
On flooding in packed columns
TL;DR: In this paper, a mechanism for flooding in packed columns, based on interactions between holdup and pressure gradient is proposed and is shown to be consistent with experimental observations, and the differences in the flooding mechanism between wetted wall columns and packed columns are considered also.
Related Papers (5)
Pressure drop and liquid holdup for two-phase concurrent flow in packed beds
Vito Specchia,Giancarlo Baldi +1 more
Prediction of pressure drop for two‐phase, two‐component concurrent flow in packed beds
Jim L. Turpin,R. L. Huntington +1 more