CFD Modeling of the Catalyst Oil Slurry Hydrodynamics in a High Pressure and Temperature as Potential for Biomass Liquefaction

Artur Wodołażski, Jacek Skiba, Katarzyna Zarębska, Jarosław Polański and Adam Smolinski
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Artur Wodołażski: Department of Energy Saving and Air Protection, Central Mining Institute, 40-166 Katowice, Poland
Jacek Skiba: Experimental Mine Barbara, Central Mining Institute, 40-166 Katowice, Poland
Katarzyna Zarębska: Department of Energy and Fuels, AGH University of Science and Technology, 30-059 Krakow, Poland
Jarosław Polański: Institute of Chemistry, Faculty of Science and Technology, University of Silesia in Katowice, 40-006 Katowice, Poland
Adam Smolinski: Central Mining Institute, 40-166 Katowice, Poland

Energies, 2020, vol. 13, issue 21, 1-13

Abstract: The paper presents the simulation of a catalyst-paraffin oil slurry hydrodynamics under high pressure and temperature in a convex bottom reactor with a Rushton turbine which was conducted with an application of computational fluid dynamics (CFD) modeling. An analysis to obtain a uniform distribution of solid catalyst particles suspended in paraffin oil was carried out as a potential for biomass liquefaction. The effects of the particle diameter, bed density, liquid viscosity, and the initial solid loading on slurry hydrodynamics in high pressure and temperature behavior were investigated using the Eulerian–Eulerian two-fluid model and the standard k-ε turbulence model. The main objective was to assess the performance in agitating highly concentrated slurries to obtain slurry velocity, concentration, the degree of homogeneity, and to examine their effect on the mixing quality. The results of the analysis are applied to predicting the impact of the most efficient conditions on slurry suspension qualities as potential for biomass liquefaction.

Keywords: hydrodynamics; CFD modeling; particle suspension; stirred tank reactor (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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