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- Type of Document: M.Sc. Thesis
- Language: Farsi
- Document No: 44897 (06)
- University: Sharif University of Technology
- Department: Chemical and Petroleum Engineering
- Advisor(s): Farhadi, Fathollah
- Abstract:
- Catalytic Reforming is a chemical process to convert naphtha feed stock into aromatic hydrocarbons and high-octane products. This process firstly was used in 1940s and since then has been considering as one the main units in oil refineries. It involves several complicated reactions which occur at high temperature and pressure in three or four series of reactors. There are various technologies for regeneration of the catalysts. The latest technology for this process is continuous catalytic regeneration.
The aim of this study was to optimize the catalytic reforming process by minimizing the deposited coke on catalyst surface and maximizing the octane number. To reach this aim, the process was first simulated. With regards to the appropriate sensitivity analysis, the trend of octane number and deposited coke versus entrance temperature and also recycled hydrogen to feed stock ratio was assessed and the correlation between them was determined. Finally, the multiobjective optimization was conducted by genetic algorithm. The results not only proved the accuracy of the simulation trend, but also demonstrated that the outcome of optimization which is shown as a pareto line can satisfy the aims of refineries’ operators - Keywords:
- Catalytic Reforming ; Deposited Coke ; Octane Number ; Catalyst Regeneration
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