Exergy Analysis and Optimization of Synthesis Gas

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Khavvaji, Davood | 2013

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 44881 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Farhadi, Fathollah
Abstract:
The main purpose of this project is to achieve better design by using exergy analysis. First steam methane reforming process of Tehran refinery is simulated using ASPEN HYSYS. Reformer and high temperature and low temperature shift reactors are simulated using trusted kinetics from literatures and results are compared with plant data and، and there was a good agreement between simulation and plant data. A MATLAB program is written to calculate stream exergies and equipment exergy destruction using AUTOMATION. Streamlined life cycle assessment is done using sustainably metrics، and environmental impacts are evaluated. The main environmental impact was global warming. After exergy destruction calculation and environmental impact analysis، multi-objective optimization is done on maximizing hydrogen flow and minimizing exergy destruction. Pareto line of this optimization is generated. Also this optimization is used for minimizing global warming potential reduction. Pareto lines for these two optimization are compared and they are like each other and this phenomenon happens because the main exergy destruction happens where pollutant are generated
Keywords:
Synthesis Gas Production ; Optimization ; Exergy Loss ; Exergy Analysis