Hydrodynamic Studies in Multi - Phase Internal Loop Airlift Fluidized Bed
| International Journal of Chemical Engineering Research |
| © 2017 by SSRG - IJCER Journal |
| Volume 4 Issue 1 |
| Year of Publication : 2017 |
| Authors : Akilamudhan Palaniappan, Senthilkumar Kandasamy, SriGokilavani |
10.14445/23945370/IJCER-V4I1P104
How to Cite?
Akilamudhan Palaniappan, Senthilkumar Kandasamy, SriGokilavani, "Hydrodynamic Studies in Multi - Phase Internal Loop Airlift Fluidized Bed," SSRG International Journal of Chemical Engineering Research, vol. 4, no. 1, pp. 22-27, 2017. Crossref, https://doi.org/10.14445/23945370/IJCER-V4I1P104
Abstract:
The effect of superficial gas and liquid velocities, particle diameter and sphericity, physical and rheological properties of liquids on gas holdup were studied in a three phase internal loop airlift fluidized bed reactor. Air was used as a gas phase. Water, nbutanol, various concentrations of glycerol (60 % and 80 %) were used as Newtonian liquids and different concentrations (0.25 %, 0.6 % and 1.0 %) of carboxy methyl cellulose (CMC) solutions were used as non- Newtonian liquids. Spheres, Bearl saddle and Raschig ring with different diameters were used as solid phases. Superficial gas velocity varied from 0.000142 m/s to 0.005662 m/s and superficial liquid velocity varied from 0.001 to 0.12 m/s. The experimental result shows that increase in particle size and superficial gas velocity increases gas holdup and decreases with increase in concentration of Newtonian and non- Newtonian systems. Based on the experimental results a separate correlation was developed to predict gas holdup for both Newtonian and non-Newtonian liquids for wide range of operating conditions.
Keywords:
Internal loop airlift reactor, Gas holdup, Newtonian, Non - Newtonian.
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