Preparation and Physico-chemical Characterization of Titanium Dioxide Nanotubes with Electrochemical Method for Oxidative Dehydrogenation of Propane (ODHP)

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Nik-khah, Maryam | 2014

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 46393 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Kazemeini, mohammad
Abstract:
Samples of the V2O5 catalysts supported on nanostructures of TiO2 and γ-Al2O3 were synthesized via hydrothermal method for the oxidative dehydrogenation of propane (ODHP) to propylene. The TiO2 support was utilized in both commercial microstructures and prepared nanostructures from their corresponding salts. Furthermore,the γ-Al2O3 was also prepared from two novel methods. Moreover, the vanadium catalysts supported on hybrid TiO2 and γ-Al2O3 were prepared. The performances of the prepared catalysts were subsequently examined in a fixed-bed reactor. The main products were propylene, ethylene and COx.The vanadium catalyst over TiO2 and γ-Al2O3 had the best performance under the reactor test conditions of 500°C, feed of C3H8/Air molar ratio of 0.6 and the total feed flowrate of 90ml/min resulted in values of 35.53% and 23.88% for propylene selectivity and propane conversion after six hours from start of the reaction, respectively. The obtained results under the conditions in this research were compared with those of the open literature values revealed satisfactory performance of the aforementioned materials
Keywords:
Titanium Dioxide ; Dehydrogenation ; Electrochemical Method ; Oxidative Dehydrogenation ; Titanium Oxide Nanotube ; Propane

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