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Simulation of Complex and Dry Reforming of Natural Gas to Produce Synthesis Gas And Their Technical and Economical Comparison

Mollahassani Madjdabadi, mohammad Ali | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 41747 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Kazemeini, Mohammad; Zamanian, Akbar; Baghalha, Morteza
  7. Abstract:
  8. In this study, two units of production of synthesis gas has been stimulated into 2 forms of natural gas complex (steam/Co2¬) reforming and dry reforming. They have been examined from technical and economical views. The product from this process is synthesis gas by the unit ratio of Hydrogen and Carbon Monoxide which is used in Arak petrochemical complex for producing 2EH. For producing this synthesis gas in 900C (reactor temperature) and 15 bar of total pressure , the ratio of feeding parts into reforming reactor for total input carbon (methane and other hydrocarbon) and Carbon dioxide gas and water vapor in representation ( [CH4 + other hydrocarbons : CO2 : H2O ] ) for complex reforming equals [1 : 2.5 : 2.15] , and for dry reforming equals [1 : 1: 0.33]. The Result of mentioned simulation clarifies the percentage of saving fuel gas, Electrical Energy, water and Carbon dioxide in dry reforming to complex reforming. In this study, operational conditions and costs of energy and materials are the same real costs in production unit of synthesis gas in Arak petrochemical complex. In comparison of these two units, reduction of operational cost of current unit in case of changing to dry reforming has been clarified. Although having such achievement mostly depends on production and developing of catalyst with sufficient resistance against coke formation which is the major challenge in the process of operational shifting to dry reforming. Thus, in this study, synthesis of the formation of carbon sediment or coke and its efforts on activities, selectivity and life's time of catalyst on current catalysts in reforming process has been studied. Fortunately, in recent years there have been lots of activities in this field that have led to outstanding success in production of catalysts with longer lives and higher resistance against forming of carbon sediment and higher selectivity for having better production
  9. Keywords:
  10. Complex Reforming ; Dry Reforming ; Technical and Economical Comparison ; Coke Formation Kinetic

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