Simultaneous local determination of mass transfer and residence time distributions in organic multiphase systems

2017 ◽  
Vol 321 ◽  
pp. 635-641
Author(s):  
Daniel Sellin ◽  
Robert Hiessl ◽  
Melanie Bothe ◽  
Jens Timmermann ◽  
Marc Becker ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Residence Time ◽  
Multiphase Systems ◽  
Residence Time Distributions ◽  
Local Determination

Mass Transfer in Liquid in Apparatus with Mobile Packing. Application of Model of Cascade of Ideal Mixers

1994 ◽  
Vol 59 (2) ◽  
pp. 336-344
Author(s):  
Zdeněk Palatý
Keyword(s):  
Mass Transfer ◽  
Residence Time ◽  
Mean Residence Time ◽  
Liquid Velocity ◽  
Dispersion Model ◽  
Velocity Range ◽  
Bed Height ◽  
The Mean ◽  
Determination Of Parameters

The paper deals with the determination of parameters of a cascade of ideal mixers (i.e. their number and mean residence time of liquid in each member) in modelling the liquid flow on a plate with mobile packing. The number of cascade members has been found practically independent of the gas and liquid velocities and the static bed heights in the gas velocity range from 1.0 to 3.5 m s-1, liquid velocity range from 5.36 . 10-3 to 12.5 . 10-3 m s-1, and the range of static bed height from 21 . 10-3 to 47 . 10-3 m. The mean residence time is increased with increasing static bed height and is decreased with increasing velocities of both gas and liquid. The calculated parameters of the model of flow of liquid and the experimental data on desorption of CO2 from water by a stream of air have been used to calculate the values of mass transfer coefficient in liquid which have been compared with those obtained from the dispersion model. The both approaches have been found to give practically identical results.

Determination of residence time distributions in different high pressure gasification processes by radioactive tracers

2014 ◽  
Vol 39 (22) ◽  
pp. 11606-11610 ◽  
Author(s):  
Andreas Ortwein ◽  
Albert Zeuner ◽  
Thorsten Jentsch ◽  
René Zeißler ◽  
Peter Seifert ◽  
...  
Keyword(s):  
High Pressure ◽  
Residence Time ◽  
Radioactive Tracers ◽  
Residence Time Distributions
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