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Synthesis of CaO Impregnated on Carbon Nano Tube for Biodiesel Production

Malakootikhah, Mohammad | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46280 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Khorashe, Farhad; Tabatabaei, Meisam; Rashidi, Alimorad
  7. Abstract:
  8. In the current work, jatropha oil was studied in the hetrogenious solid catalytic transesterfication reaction. For this perpous, KOH/CNT catalyst which was prepared by dry impregnation method was used. SEM, XRD and TGA were applied for the catalyst characterization. The results showed that for the KOH/CNT catalyst, by increasing the loading of KOH, the activity of the catalyst increased and the most active catalyst was prepared by 20% loading of KOH. The optimum conditions for transesterfication reaction in the percense of this catalyst were: 4.7% catalyst weigth and the 24.5 molar ratio of methanol to oil and also the reaction time of 2 houres which the rate of reaction at this time is zero. In these optimum condition and at the temperature of 60 C, biodiesel conversion of 71.08% was achieved. By increasing the loading, the basisity of reaction media and the total conversion increased but because of high leaching of active metal oxide in the reaction media for the potassium one, it was avoided to load more than 20% of KOH. By impregnation of CNT with KOH and consequently calcination, the carbon nano tube disappeared and changed into the carbon shits
  9. Keywords:
  10. Esterification ; Biodiesel ; Carbon Nanotubes ; Solid Catalyst ; Pottasium Hydroxide Carbon Nanotube (KOH/CNT)Catalyst

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