scholarly journals Prediction of Gas Holdup in a Three-Phase Internal Loop Airlift Fluidized Bed Reactor Using Newtonian and non-Newtonian Liquids

2010 ◽  
Vol 4 (9) ◽  
Author(s):  
Sivakumar Venkatachalam ◽  
Akilamudhan Palaniappan ◽  
Kannan Kandasamy
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Gas Holdup ◽  
Internal Loop ◽  
Three Phase ◽  
Newtonian Liquids

scholarly journals Prediction of gas holdup in a combined loop air lift fluidized bed reactor using Newtonian and non-Newtonian liquids

2011 ◽  
Vol 17 (3) ◽  
pp. 375-383
Author(s):  
Sivakumar Venkatachalam ◽  
Akilamudhan Palaniappan ◽  
Senthilkumar Kandasamy ◽  
Kannan Kandasamy
Keyword(s):  
Fluidized Bed ◽  
Particle Diameter ◽  
Fluidized Bed Reactor ◽  
Gas Holdup ◽  
Operating Conditions ◽  
Experimental Results ◽  
Gas Velocity ◽  
Wide Range ◽  
Newtonian Liquids ◽  
Superficial Gas Velocity

Many experiments have been conducted to study the hydrodynamic characteristics of column reactors and loop reactors. In this present work a novel combined loop airlift fluidized bed reactor was developed to study, the effect of superficial gas and liquid velocities, particle diameter, fluid properties on gas holdup by using Newtonian and non-Newtonian liquids. Compressed air was used as gas phase. Water, 5% n-butanol, various concentrations of glycerol (60 % and 80 %) were used as Newtonian liquids, different concentrations of Carboxy Methyl Cellulose (0.25 %, 0.6 % and 1.0 %) aqueous solutions were used as non-Newtonian liquids. Different sizes of Spheres, Bearl saddles and Raschig rings were used as solid phases. From the experimental results it was found that the increase in superficial gas velocity increases the gas holdup, but it decreases with increase in superficial liquid velocity and viscosity of liquids. Based on the experimental results a correlation was developed to predict the gas holdup for Newtonian and non-Newtonian liquids for a wide range of operating conditions at a homogeneous flow regime where the superficial gas velocity is approximately less than 5 cm/s.

scholarly journals Prediction of Riser Gas Holdup in Three- Phase External Loop Air Lift Fluidized Bed Reactor

2010 ◽  
Vol 4 (8) ◽  
Author(s):  
Sivakumar Venkatachalam ◽  
Kannan Kandasamy ◽  
Akilamudhan Palaniappan
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Gas Holdup ◽  
External Loop ◽  
Three Phase ◽  
Air Lift

scholarly journals The performance of a three-phase fluidized bed reactor in treatment of wastewater with high organic load

2004 ◽  
Vol 21 (2) ◽  
pp. 219-227 ◽  
Author(s):  
R. R. Souza ◽  
I. T. L. Bresolin ◽  
T. L. Bioni ◽  
M. L. Gimenes ◽  
B. P. Dias-Filho
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Organic Load ◽  
Three Phase

The production of the antibiotic patulin in a three phase fluidized bed reactor: II. Longevity of the biocatalyst

1984 ◽  
Vol 62 (1) ◽  
pp. 120-124 ◽  
Author(s):  
Dimitrios Berk ◽  
Leo A. Behie ◽  
Alan Jones ◽  
Barry H. Lesser ◽  
G. Maurice Gaucher
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
Three Phase
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