scholarly journals A residence time distribution study using a CSTR in the CANMET hydrocracking process for light Arabian vacuum bottoms

1983 ◽  
Author(s):  
D D S Liu ◽  
D J Patmore ◽  
F T T Ng
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Distribution Study ◽  
Hydrocracking Process

Radiotracer method for residence time distribution study in multiphase flow system

2009 ◽  
Vol 67 (7-8) ◽  
pp. 1445-1448 ◽  
Author(s):  
S. Sugiharto ◽  
Z. Su’ud ◽  
R. Kurniadi ◽  
W. Wibisono ◽  
Z. Abidin
Keyword(s):  
Multiphase Flow ◽  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Flow System ◽  
Radiotracer Method ◽  
Distribution Study

Modeling of a Porous Reactor for Supercritical Water Oxidation by a Residence Time Distribution Study

2003 ◽  
Vol 42 (10) ◽  
pp. 2122-2130 ◽  
Author(s):  
E. Fauvel ◽  
C. Joussot-Dubien ◽  
E. Pomier ◽  
P. Guichardon ◽  
G. Charbit ◽  
...  
Keyword(s):  
Residence Time ◽  
Supercritical Water ◽  
Water Oxidation ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Supercritical Water Oxidation ◽  
Distribution Study

Residence time distribution study for the catalytic packing MULTIPAK®

2006 ◽  
Vol 60 (6) ◽  
Author(s):  
A. Górak ◽  
M. Jaroszyński ◽  
A. Kołodziej
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Reynolds Numbers ◽  
Axial Dispersion ◽  
Dispersion Coefficients ◽  
Column Operation ◽  
Distribution Study ◽  
Inner Diameter ◽  
Very High

AbstractResidence time distribution (RTD) experiments were carried out using the catalytic packing MULTIPAK® in a 250 mm inner diameter column. The axial dispersion coefficients and dynamic liquid hold-up were derived from the RTD curves. Both hold-up and axial Péclet number were correlated in terms of gas and liquid Reynolds numbers. Free-draining experiments were performed to determine the dynamic and static liquid hold-ups.The measured axial dispersion coefficients were higher than those presented in other studies. The dynamic hold-up derived from RTD agreed with total hold-up from free-draining experiments. The static hold-up was found very high, even higher than the dynamic one, due to the liquid accumulated inside the catalyst bed. Possibly, the liquid considered “static” from the viewpoint of the free-draining experiments becomes “dynamic” during the normal column operation.

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