Computational Fluid Dynamic (CFD) of Fixed-Bed Reactor for Bio-treatment of Sulfur from Petroleum Cuts<br/>

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Computational Fluid Dynamic (CFD) of Fixed-Bed Reactor for Bio-treatment of Sulfur from Petroleum Cuts

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 45609 (06)
University: Sharif University of Technology
Department: Chemical & Petroleum Engineering
Advisor(s): Yaghmaei, Soheila
Abstract:
Bio-desulfurization is the sulfur removal process from organosulfur compounds by the action of microorganisms (which are capable of removing sulfur). Too many studies have been carried out in the use of biocatalysts for BDS process. In this project, we have used data obtained from a previous experiment in which a trickle bed reactor (diameter: 0.066 m, height: 0.6 m) and a Rhodococcus sp. 12891 starin immobilized on bed particles are used to produce diesel with low sulfur content. Sulfur concentration of inlet diesel is between 200ppm to 540 ppm. parameters of process are recycle Ratio , volumetric flow rate and sulfur content of inlet diesel.
A mathematical model for trickle bed reactor based on kinetic parameters (maximum specific growth rate, saturation constant and yield coefficient) determined by batch experiments was developed. This model was solved by MATLAB on certain boundary conditions. Simulated values and experimental observations were compared and in all cases, the results were in good agreement.
Keywords:
Computational Fluid Dynamics (CFD) ; Biodesulfurization (BDS) ; Microorganisms ; Fixed Bed Reactor ; Biocatalyst

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