Modulation of liquid holdup along a trickle bed reactor with periodic operation
Temporal variations of the liquid holdup in a mini-pilot scale trickle bed reactor cold-mockup, induced by an ON-OFF liquid flow modulation strategy of operation, are explored at different axial positions. The reactor is packed with porous beads of γ - Al2 O3 and the liquid holdup is approximately e...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00092509_v62_n21_p6002_Ayude |
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todo:paper_00092509_v62_n21_p6002_Ayude2023-10-03T14:08:08Z Modulation of liquid holdup along a trickle bed reactor with periodic operation Ayude, M.A. Martínez, O.M. Cassanello, M.C. Hydrodynamics Liquid flow modulation Liquid holdup profiles Periodic operation Trickle-bed reactors Approximation theory Hydrodynamics Parameter estimation Porous materials Exponential function Liquid flow modulation Periodic operation Trickle bed reactor Chemical reactors Approximation theory Chemical reactors Hydrodynamics Parameter estimation Porous materials Temporal variations of the liquid holdup in a mini-pilot scale trickle bed reactor cold-mockup, induced by an ON-OFF liquid flow modulation strategy of operation, are explored at different axial positions. The reactor is packed with porous beads of γ - Al2 O3 and the liquid holdup is approximately estimated with a conductimetric technique, using probes that mimic the packing. The effects of the liquid and gas superficial velocities, the bed depth and the cycling parameters, cycle period and split, on the liquid holdup modulation are examined for a wide range of conditions. For slow and intermediate cycle periods, the liquid holdup time dependence observed during the dry period is represented by an exponential function. The characteristic value of the decay is correlated to the examined variables. The correlation allows reconstruction of the liquid holdup time dependence along the column. © 2007 Elsevier Ltd. All rights reserved. Fil:Ayude, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cassanello, M.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00092509_v62_n21_p6002_Ayude |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Hydrodynamics Liquid flow modulation Liquid holdup profiles Periodic operation Trickle-bed reactors Approximation theory Hydrodynamics Parameter estimation Porous materials Exponential function Liquid flow modulation Periodic operation Trickle bed reactor Chemical reactors Approximation theory Chemical reactors Hydrodynamics Parameter estimation Porous materials |
| spellingShingle |
Hydrodynamics Liquid flow modulation Liquid holdup profiles Periodic operation Trickle-bed reactors Approximation theory Hydrodynamics Parameter estimation Porous materials Exponential function Liquid flow modulation Periodic operation Trickle bed reactor Chemical reactors Approximation theory Chemical reactors Hydrodynamics Parameter estimation Porous materials Ayude, M.A. Martínez, O.M. Cassanello, M.C. Modulation of liquid holdup along a trickle bed reactor with periodic operation |
| topic_facet |
Hydrodynamics Liquid flow modulation Liquid holdup profiles Periodic operation Trickle-bed reactors Approximation theory Hydrodynamics Parameter estimation Porous materials Exponential function Liquid flow modulation Periodic operation Trickle bed reactor Chemical reactors Approximation theory Chemical reactors Hydrodynamics Parameter estimation Porous materials |
| description |
Temporal variations of the liquid holdup in a mini-pilot scale trickle bed reactor cold-mockup, induced by an ON-OFF liquid flow modulation strategy of operation, are explored at different axial positions. The reactor is packed with porous beads of γ - Al2 O3 and the liquid holdup is approximately estimated with a conductimetric technique, using probes that mimic the packing. The effects of the liquid and gas superficial velocities, the bed depth and the cycling parameters, cycle period and split, on the liquid holdup modulation are examined for a wide range of conditions. For slow and intermediate cycle periods, the liquid holdup time dependence observed during the dry period is represented by an exponential function. The characteristic value of the decay is correlated to the examined variables. The correlation allows reconstruction of the liquid holdup time dependence along the column. © 2007 Elsevier Ltd. All rights reserved. |
| format |
JOUR |
| author |
Ayude, M.A. Martínez, O.M. Cassanello, M.C. |
| author_facet |
Ayude, M.A. Martínez, O.M. Cassanello, M.C. |
| author_sort |
Ayude, M.A. |
| title |
Modulation of liquid holdup along a trickle bed reactor with periodic operation |
| title_short |
Modulation of liquid holdup along a trickle bed reactor with periodic operation |
| title_full |
Modulation of liquid holdup along a trickle bed reactor with periodic operation |
| title_fullStr |
Modulation of liquid holdup along a trickle bed reactor with periodic operation |
| title_full_unstemmed |
Modulation of liquid holdup along a trickle bed reactor with periodic operation |
| title_sort |
modulation of liquid holdup along a trickle bed reactor with periodic operation |
| url |
http://hdl.handle.net/20.500.12110/paper_00092509_v62_n21_p6002_Ayude |
| work_keys_str_mv |
AT ayudema modulationofliquidholdupalongatricklebedreactorwithperiodicoperation AT martinezom modulationofliquidholdupalongatricklebedreactorwithperiodicoperation AT cassanellomc modulationofliquidholdupalongatricklebedreactorwithperiodicoperation |
| _version_ |
1807318448787685376 |