Application of Computational Mass Transfer (IV): Fixed-Bed Catalytic Reaction

2014 ◽  
pp. 209-233
Author(s):  
Kuo-Tsong Yu ◽  
Xigang Yuan
Keyword(s):  
Mass Transfer ◽  
Catalytic Reaction ◽  
Fixed Bed

Modeling of aerated upflow fixed bed reactors for nitrification

1999 ◽  
Vol 39 (4) ◽  
pp. 85-92 ◽  
Author(s):  
J. Behrendt
Keyword(s):  
Mathematical Model ◽  
Mass Transfer ◽  
Liquid Phase ◽  
Gas Phase ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Bulk Liquid ◽  
Initial Value ◽  
Fixed Bed Reactors ◽  
Number Of Cells

A mathematical model for nitrification in an aerated fixed bed reactor has been developed. This model is based on material balances in the bulk liquid, gas phase and in the biofilm area. The fixed bed is divided into a number of cells according to the reduced remixing behaviour. A fixed bed cell consists of 4 compartments: the support, the gas phase, the bulk liquid phase and the stagnant volume containing the biofilm. In the stagnant volume the biological transmutation of the ammonia is located. The transport phenomena are modelled with mass transfer formulations so that the balances could be formulated as an initial value problem. The results of the simulation and experiments are compared.

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
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