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Optimizing Structure of Catalysts and Development of Kinetic Parameters for Synthesis Gas to Olefin Reaction

Shayegh, Flora | 2010

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  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 41382 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Ghotbi, Siroos; Bozorg Mehri, Ramin; Zarrinpashne, Saeid
  7. Abstract:
  8. Synthesis gas to light olefin reactions especially propylene production is one of the important path for clean fuel production in gas conversion processes. The object of this study is to define true kinetic model of process first step (e.g. Synthesis gas to light Olefins). For that, kinetic model for Co/Mn/TiO2 catalyst, which has the best conversion and selectivity for propylene, has been developed. Kinetic reaction parameters were measured by kinetic modeling in (220-300)0C temperature , (1-5)bar pressure , H2/CO=(1:3) and (450-600)hr-1 space velocity .After studying with significant models ,the best fitting can obtained with "KPCO P 1/2H2/(1+aPco+bPH2 1/2)2"equation. Later to achieve practical kinetic parameters due to mass transfer effect, objective simulation has been applied to simulate geometrical structure of catalyst. Objective oriented is capable to predict the structure of catalysts to great extents with real situations. Through study of selected kinetic model, the experimental parameters are determined By application of those parameters in objective oriented and optimization, the most suitable method for synthesis gas change to light olefins reaction is achieved
  9. Keywords:
  10. Light Olefins ; Cobalt Manganes Catalyst ; Cobalt Manganes Kinetics Catalyst ; Catalyst Optimum Structure ; Shape Selectivity

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