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The Optimal Model of Energy and Exergy Flow for Evaluating Technology Changes in Oil Refinery (Case Study: North Tehran Oil Refinery)

Hosseinnezhad, Ahmad | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 43481 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Saboohi, Yadollah
  7. Abstract:
  8. In this project, a comprehensive model is developed for energy and exergy analysis in refineries. By studying Tehran’s North Refinery unit as a case study, the Reference Energy System as the conceptual model of the thesis and also Energy & Exergy Balance table is prepared. Through the exergy balance table, the Exergy efficiency defined. These factors help to settle priority for efficiency improvement investment. Then, the economic and technical relations and costraints are formulized using linear programming model. In this model, the CO2 emission and exergy destruction costs are intended. Using Energy System Model (ESM) software, the thesis model is advanced as RESM stands for Refinery Energy System Model. By running the model, optimized streams are yielded. The results show that fuel oil production share decrease from 20% to 8% and gasoline production share increases from 20% to 30% using FCC and Delay Coking Technologies. Unit’s value added is also rise by 21%. The economic analysis of integrating Biodiesel Unit with refinery to produce Renewables is also studied. Also biodiesel produce 5% of diesel demand. The presented model in this study can answer to two important questions about refineries by using integration and systematic thinking: choose the technologies, and determinate energy flows condition, and time requirement for maximizing refinery profit.
  9. Keywords:
  10. Oil Refinery ; Technology ; Exergy Analysis ; Tehran Oil Refinery ; Developing Optimal Exergy Flow ; Developing Optimal Energy Flow ; Refinery Energy System Model (RESM) ; Reference Energy System

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