Numerical analysis of mass transfer in packed-bed reactors with irregular particle arrangements

2012 ◽  
Vol 81 ◽  
pp. 77-83 ◽  
Author(s):  
Theodoros Atmakidis ◽  
Eugeny Y. Kenig
Keyword(s):  
Mass Transfer ◽  
Numerical Analysis ◽  
Packed Bed ◽  
Packed Bed Reactors ◽  
Irregular Particle

Numerical Analysis of Residence Time Distribution in Packed Bed Reactors with Irregular Particle Arrangements

2015 ◽  
Vol 10 (1) ◽  
pp. 17-26 ◽  
Author(s):  
Theodoros Atmakidis ◽  
Eugeny Y. Kenig
Keyword(s):  
Numerical Analysis ◽  
Residence Time ◽  
Particle Diameter ◽  
Time Estimation ◽  
Packed Bed ◽  
Processing Method ◽  
Tracer Concentration ◽  
Experimental Procedure ◽  
Packed Bed Reactors ◽  
Irregular Particle

Abstract The computational fluid dynamics approach is applied to packed bed reactors with moderate tube-to-particle diameter ratios. In order to generate irregular particle arrangements within the reactors, a modified ballistic deposition method is used. While our previous studies were focused on pressure drop and mass transfer characteristics, the present paper uses the same framework to investigate the dispersion phenomena occurring in such reactors. Two different methods, namely the tracer and the post-processing method, are applied. The first method imitates the experimental procedure in which a non-diffusive tracer is injected into the packed bed. The residence time can be evaluated from the evolution of the tracer concentration. The second method is purely numerical and allows fast residence time estimation. Simulation results are successfully validated against experimental data from literature. The suggested numerical analysis is a valuable tool toward a deeper understanding of the fundamental transport phenomena in such reactors and, consequently, for the improvement of the packed bed performance.

Mass Transfer of Alkanes in Zeolite Packed-Bed Reactors Studied with Positron Emission Profiling (PEP). 1. Experiments

1998 ◽  
Vol 37 (3) ◽  
pp. 815-824 ◽  
Author(s):  
Bruce G. Anderson ◽  
Frank J. M. M. de Gauw ◽  
Niels J. Noordhoek ◽  
Leo J. van IJzendoorn ◽  
Rutger A. van Santen ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Packed Bed ◽  
Packed Bed Reactors ◽  
Positron Emission ◽  
Positron Emission Profiling

scholarly journals Designed porous milli-scale reactors with enhanced interfacial mass transfer in two-phase flows

2017 ◽  
Vol 2 (2) ◽  
pp. 137-148 ◽  
Author(s):  
Aditi Potdar ◽  
Lidia N. Protasova ◽  
Leen Thomassen ◽  
Simon Kuhn
Keyword(s):  
Mass Transfer ◽  
Pressure Drop ◽  
Packed Bed ◽  
Transfer Performance ◽  
Two Phase Flows ◽  
Two Phase ◽  
Reduced Pressure ◽  
Packed Bed Reactors ◽  
Interfacial Mass Transfer

Designed porous milli-scale reactors with enhanced mass transfer performance and reduced pressure drop compared to conventional packed bed reactors.

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