Hydrodynamics and mass transfer in a draft tube airlift reactor with dilute alcohol solutions

AIChE Journal ◽  
2007 ◽  
Vol 53 (11) ◽  
pp. 2897-2904 ◽  
Author(s):  
B. Albijanić ◽  
V. Havran ◽  
D. Lj. Petrović ◽  
M. Đurić ◽  
M. N. Tekić
Keyword(s):  
Mass Transfer ◽  
Draft Tube ◽  
Airlift Reactor

Hydrodynamics and mass transfer in an airlift reactor with a semipermeable draft tube

1996 ◽  
Vol 51 (7) ◽  
pp. 1173-1176 ◽  
Author(s):  
D.G. Karamanev ◽  
C. Chavarie ◽  
R. Samson
Keyword(s):  
Mass Transfer ◽  
Draft Tube ◽  
Airlift Reactor

Mass transfer in an airlift reactor with a net draft tube

1992 ◽  
Vol 8 (5) ◽  
pp. 465-468 ◽  
Author(s):  
Wen Teng Wu ◽  
Jiumn Yih Wu ◽  
Jian Zhong Jong
Keyword(s):  
Mass Transfer ◽  
Draft Tube ◽  
Airlift Reactor

Sparger Type Influence on the Volumetric Mass Transfer Coefficient in the Draft Tube Airlift Reactor with Diluted Alcohol Solutions

2013 ◽  
Vol 52 (20) ◽  
pp. 6812-6821 ◽  
Author(s):  
Ivana M. Šijački ◽  
Milenko S. Tokić ◽  
Predrag S. Kojić ◽  
Dragan Lj. Petrović ◽  
Miodrag N. Tekić ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Draft Tube ◽  
Airlift Reactor ◽  
Volumetric Mass Transfer Coefficient

Liquid–solid mass transfer behaviour of a fixed bed airlift reactor

2015 ◽  
Vol 103 ◽  
pp. 1-11 ◽  
Author(s):  
A.A. Harraz ◽  
I.A. El Gheriany ◽  
M.H. Abdel-Aziz ◽  
T.M. Zewail ◽  
A.H. Konsowa ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Fixed Bed ◽  
Airlift Reactor ◽  
Solid Mass

Constrained Inverse Fluidization of Light Particles in a Draft Tube Airlift Reactor

2009 ◽  
Vol 48 (9) ◽  
pp. 4611-4618
Author(s):  
Ivana M. Šijački ◽  
Radmilo R. Čolović ◽  
Bojan Petković ◽  
Aleksandar Ž. Selakov ◽  
Dragan Lj. Petrović ◽  
...  
Keyword(s):  
Draft Tube ◽  
Airlift Reactor ◽  
Inverse Fluidization ◽  
Light Particles

scholarly journals Numerical study of the hydrodynamics and mass transfer in the external loop airlift reactor

2021 ◽  
pp. 34-34
Author(s):  
Predrag Kojic ◽  
Jovana Kojic ◽  
Milada Pezo ◽  
Jelena Krulj ◽  
Lato Pezo ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Airlift Reactor ◽  
Volumetric Mass Transfer Coefficient ◽  
Cfd Model ◽  
Gas Velocity ◽  
Liquid Mass ◽  
External Loop ◽  
Liquid Mass Transfer

The objective of this study was to investigate the hydrodynamics and the gas-liquid mass transfer coefficient of an external-loop airlift reactor (ELAR). The ELAR was operated in three cases: different inlet velocities of fluids, different alcohols solutions (water, 0.5% methanol, 0.5% ethanol, 0.5% propanol and 0.5% butanol) and different concentration of methanol in solutions (0%, 0.5%, 1%, 2% and 5%). The influence of superficial gas velocity and various diluted alcohol solutions on hydrodynamics and gas-liquid mass transfer coefficient of the ELAR was studied. Experimentally, the gas hold-up, liquid velocities and volumetric mass transfer coefficient values in the riser and the downcomer were obtained from the literature source. A computational fluid dynamics (CFD) model was developed, based on two-phase flow, investigating different liquids regarding surface tension, assuming the ideal gas flow, applying the finite volume method and Eulerian-Eulerian model. The volumetric mass transfer coefficient was determined using CFD model, as well as artificial neural network model. The effects of liquid parameters and gas velocity on the characteristics of the gas-liquid mass transfer were simulated. These models were compared with appropriate experimental results. CFD model successfully succeed to simulate the influence of different alcohols regarding the number of C-atoms on hydrodynamics and mass transfer.

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