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Title: Development of a nano alumina-zirconia composite catalyst as an active thin film in biodiesel production
Authors: Heydarzadeh, J Kolaee
Marzban, N
Najafpour, G D
Pourmohammadbagher, M
Valizadeh, S
Keywords: Nano alumina-zirconia;Composite catalyst;Thin film;Biodiesel
Issue Date: Nov-2018
Publisher: NISCAIR-CSIR, India
Abstract: A nano-alumina-zirconia composite catalyst has been synthesized by a simple aqueous sol-gel method using AlCl3.6H2O and ZrCl4 as precursors. Thermal decomposition of the precursor and subsequent formation of γ-Al2O3 and t-ZrO2 have been investigated by thermal analysis. XRD analysis show that γ-Al2O3 and t-ZrO2 phases are formed at 700 °C. FT-IR analysis also indicate the phase transition to γ-Al2O3 occur in corroboration with X-ray studies. TEM analysis of the calcined powder reveal that spherical particles were in the range of 8-12 nm. The nano alumina-zirconia composite particles are mesoporous and uniformly distributed in their crystalline phase. In order to measure the catalytic activity, esterification reaction has been carried out. Biodiesel, as a renewable fuel, is formed in a continuous packed column reactor. Free fatty acid (FFA) is esterified with ethanol in a heterogeneous catalytic reactor. It is found that the synthesized γ-Al2O3/ZrO2 composite has the potential to be used as a heterogeneous base catalyst for biodiesel production processes.
Page(s): 578-582
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.25(6) [November 2018]

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