Flow regime transition in trickle beds packed with particles of different wetting characteristics—check-up on new tools

Unconventional methods are checked up for identification of trickling-pulsing flow regime transition in trickle-bed reactors from pressure fluctuations time series. Methods consist in calculating the standard deviation, the Fourier power spectrum, the Hurst exponent of the sample sequential taken as...

Full description

Saved in:
Bibliographic Details
Published in:Chemical engineering science 1997-11, Vol.52 (21-22), p.3747-3755
Main Authors: Horowitz, G.I., Cukierman, A.L., Cassanello, M.C.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
Flow regime transition
foaming liquid
hydrodynamics
particle mixtures
particle wetting
Reactors
trickle bed
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Unconventional methods are checked up for identification of trickling-pulsing flow regime transition in trickle-bed reactors from pressure fluctuations time series. Methods consist in calculating the standard deviation, the Fourier power spectrum, the Hurst exponent of the sample sequential taken as a record and the correlation dimension of the attractor describing the system dynamics. Flow transitions determined from these methods are found to agree with those judged by ocular inspection. Effects of particles mixtures with different wetting features and of liquid foaming character are systematically studied. Both variables affect flow transition. However, a preeminence of the liquid foaming character is found.
ISSN:0009-2509
1873-4405
DOI:10.1016/S0009-2509(97)00221-2