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Biodiesel Production from Vegetable Oils through the Transesterification Method Catalyzed by Talc Clay Supported Heterogeneous Catalyst under the Optimized Condition in Bench Scale

Zehtab Salmasi, Milad | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 52588 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Kazemeini, Mohammad; Sadjadi, Samahe; Baghalha, Morteza
  7. Abstract:
  8. This study aims at synthesizing and investigating of heterogeneous catalysts for biodiesel production as an alternative to fossil fuel with a transesterification reaction of sunflower oil and methanol. Three main sections of this thesis concern the synthesis of clay base catalyst, characterization analysis, and investigation of the transesterification reaction under different conditions. Talc clay base catalyst impregnated with a 40 wt.% of K2CO3 as active and stable catalysts to study the transesterification reaction of sunflower oil and methanol for biodiesel production. Synthesized catalysts have been characterized by power X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDS), fourier transform infrared spectroscopy (FTIR), Brunaur-Emmett-Teller (BET) surface area study and Thermal Gravimetry Analysis (TGA), to illustrate the structure and morphology of the catalyst. Under optimal conditions (methanol/oil molar ratio of 6:1, 4 wt.% catalyst, and 65 ˚C reaction temperature), 98.4% fatty acid methyl ester (FAME) yield was obtained in 4h of reaction time. The biodiesel yield calculated by GC-FID was higher than similar studies and almost met the EN14214 standard. Moreover, the catalyst could be reused up to 5 cycles without significant loss of performance
  9. Keywords:
  10. Clay Soils ; Heterogeneous Catalysis ; Biodiesel ; Transesterification Reaction ; Sun Flow Oil ; Potassium Carbonate

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