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- W2041270511 abstract "Abstract A phenomenological hydrodynamic model of a trickle‐bed reactor developed predicts pressure gradient and liquid holdup at high pressures. The model consists of 1‐D force balance equations incorporating particle–gas drag, particle–liquid drag and gas–liquid interactions. The deviation between the measured and theoretical pressure drop is explained in terms of tortuosity and axial dispersion effects. Tortuosity encountered by the flowing liquid and gas phases has two components: (1) tortuosity angle (θ), the measure of the tortuous path the fluid would take; (2) an excess friction factor, which would approximate for resulting excess drag while the tortuous path is taken. These parameters were observed to play a major role in modeling the hydrodynamics in the trickle‐bed reactor. The model takes into account the tortousity effects in a unique way. The axial dispersion effect comes into the picture due to the back‐mixing, modeled in terms of the Peclet number (Pe) in a novel way. The overall model was tested with major experimental data for the high‐pressure concerning various types of gas–liquid systems, including hydrocarbons, aqueous solutions, coalescence inhibiting liquids, and so on, that are available in the literature, and the prediction has been found to be excellent." @default.
- W2041270511 created "2016-06-24" @default.
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- W2041270511 date "2002-11-01" @default.
- W2041270511 modified "2023-10-15" @default.
- W2041270511 title "Modeling hydrodynamics of trickle-bed reactors at high pressure" @default.
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- W2041270511 doi "https://doi.org/10.1002/aic.690481105" @default.
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