Modeling and Predictions of Solids Dynamic Holdup in Gas−Flowing Solids−Fixed Bed Contactors

2004 ◽  
Vol 43 (23) ◽  
pp. 7445-7448 ◽  
Author(s):  
Aleksandar P. Duduković ◽  
Nikola M. Nikačević ◽  
Željko V. Kuzeljević
Keyword(s):  
Fixed Bed ◽  
Dynamic Holdup

scholarly journals Exchange between the stagnant and flowing zone in gas-flowing solids-fixed bed contactors

2005 ◽  
Vol 70 (1) ◽  
pp. 137-144 ◽  
Author(s):  
Aleksandar Dudukovic ◽  
Nikola Nikacevic ◽  
Rada Pjanovic ◽  
Zeljko Kuzeljevic
Keyword(s):  
Mathematical Model ◽  
Fixed Bed ◽  
Stagnant Zone ◽  
The Other ◽  
Stagnant Region ◽  
Dynamic Exchange ◽  
Tracer Experiments ◽  
Dynamic Holdup

In countercurrent gas - flowing solids - fixed bed contactors, a fraction of the flowing solids is in motion (dynamic holdup), while the other fraction is resting on the fixed bed elements. In this study it was experimentally proved that the stagnant zone should not be considered as a dead part of the column, but that there is a dynamic exchange between these two portions of flowing solids particles. Combining a mathematical model with tracer experiments, the rate of exchange was determined and it was shown that only a small part (ca. 20 %) of the stagnant region should be considered as a dead one.

FLOWING SOLIDS DYNAMIC HOLDUP IN THE COUNTERCURRENT GAS-FLOWING SOLIDS-FIXED BED REACTOR

1997 ◽  
Vol 162 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Z. J. PREDOJEVIĆ ◽  
D. LJ. PETROVIĆ ◽  
A. DUDUKOVIĆ
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Dynamic Holdup

THERMODYNAMIC ANALYSIS OF A FIXED-BED REACTOR FOR THE THERMOCHEMICAL ENERGY STORAGE SYSTEM Ca(OH)2/CaO

2020 ◽  
Vol 51 (16) ◽  
pp. 1497-1516
Author(s):  
Caifeng Huang ◽  
Min Xu ◽  
Xiulan L. Huai
Keyword(s):  
Energy Storage ◽  
Thermodynamic Analysis ◽  
Storage System ◽  
Fixed Bed ◽  
Energy Storage System ◽  
Fixed Bed Reactor

FIXED BED HEAT REGENERATORS WITH HEAT LOSSES AND SOURCES

1978 ◽  
Author(s):  
S. Le Mong ◽  
Dieter Vortmeyer
Keyword(s):  
Fixed Bed ◽  
Heat Losses

HEAT TRANSFER IN FIXED BED CHEMICAL REACTORS

1982 ◽  
Author(s):  
D. J. Gunn ◽  
Dieter Vortmeyer
Keyword(s):  
Heat Transfer ◽  
Fixed Bed ◽  
Chemical Reactors

Fuel Characterization of Bio-oil from Fast Pyrolysis of Tectona grandis in a Fixed Bed Reactor

2020 ◽  
Author(s):  
Pious Okekunle ◽  
Akinola Ogunsola ◽  
Oluwapelumi Babayemi ◽  
Emmanuel Abodunrin ◽  
Olanrewaju Daramola
Keyword(s):  
Fast Pyrolysis ◽  
Fixed Bed ◽  
Tectona Grandis ◽  
Fixed Bed Reactor ◽  
Bio Oil ◽  
Fuel Characterization
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