Effects of Sparger Design on the Gas Holdup and Mass Transfer in a Pilot Scale External Loop Airlift Reactor
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چکیده
منابع مشابه
The Effects of Geometry and Operational Conditions on Gas Holdup, Liquid Circulation and Mass Transfer in an Airlift Reactor
In airlift reactors transport phenomena are achieved by pneumatic agitation and circulation occurs in a defined cyclic pattern through a loop. In the present work, the effect of geometrical relations on gas holdup and liquid velocity, and consequently on the gas-liquid mass transfer coefficient, was studied in a 6liter airlift bioreactor with AD/AR = 0.63; AD, downcomer cross-sectional area, an...
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Experiment and CFD Simulation on Gas Holdup Characteristics in an Internal Loop Reactor with External Liquid Circulation
An external liquid circulation is introduced into a traditional internal loop reactor in order to improve liquid circulation and increase the interface between gas and liquid phases. The effects of superficial gas velocity and external liquid circulation velocity on local and overall gas holdups are explored experimentally and numerically in the loop section of a combined gas-liquid contactor, ...
متن کاملGas Hold-up Characteristics of an External Loop Airlift Contactor
Conventional airlift contactor (UT-ALC) was modified to improve its performance. The modified system (CDT-ALC) was tested for gas hold-up characteristics. Hydrodynamic environment depends on gas hold-up. New system reported 50 % higher gas hold-up. Linear relation between superficial gas velocity and fractional gas hold-up were developed from experimental data for both the reactors.
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ژورنال
عنوان ژورنال: South African Journal of Chemical Engineering
سال: 2021
ISSN: 1026-9185
DOI: 10.1016/j.sajce.2021.05.009