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Hydrodynamics in down flow jet loop reactor
Author(s) -
Velan M.,
Ramanujam T. K.
Publication year - 1991
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450690605
Subject(s) - nozzle , draft tube , mechanics , jet (fluid) , loop (graph theory) , circulation (fluid dynamics) , flow (mathematics) , materials science , tube (container) , volumetric flow rate , thermodynamics , environmental science , physics , mathematics , composite material , combinatorics
Gas holdup and liquid circulation time were measured in a down flow jet loop reactor for air–water system. It was observed that the circulation time decreases with an increase in nozzle diameter, draft tube to column diameter ratio and liquid velocity. Th gas holdup increases with an increase in gas and liquid velocities. The optimum draft tube to column diameter ratio was found to be 0.438. Correlations for gas holdup and circulation time involving operational and geometrical variables are presented.