Simulation of Hydrodesulfurization Plant

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Sadat Feizabadi Sani, Mansooreh | 2009

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 39303 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Fahadi, Fathollah
Abstract:
Sulfur components are one of the most important impurities in various petroleum fractions that cause many problems in refining and consumption. In this thesis, hydrodesulfurization process, which has an economical and environmental especial position in petroleum and other related industries, has been discussed. In hydrodesulfurization process, under specific operation condition, sulfur components are converted catalytically to the H2S in a fixed bed reactor. In this study dibenzothiophene, which is one of the most strength and complex sulfur components, is considered as the base component. A Langmuir-Hinshelwood kinetic equation is used to describe the reaction by using the commercial catalyst (CoMo/Al2O3). The process is simulated by Aspen Plus and HYSYS softwares. By the use of the simulation results, the effects of some pertinent operating parameters such as reactor temperature, pressure and H2/oil ratio, on the performance capability of the HDS plant, were investigated. Based on these results, the optimum operating conditions were btained. And finally, by economical studies, the optimum values of operating parameters for reaching highest profit were determinded
Keywords:
Kinetics Study ; Simulation ; Dibenzothiophene (DBT) ; Trickle Bed Rector

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