Ultrasound Assisted Loading of CaO over Al-MCM-41 for Biodiesel Production
Paper ID : 1437-ICNS
Authors:
Neda Vardast1, Mohammad Haghighi *2
1Chemical Engineering Faculty, Reactor and Catalysis Research Center (RCRC), Sahand University of Technology P.O.Box 51335-1996, Sahand New Town, Tabriz, Iran
2Chemical Engineering Faculty, Sahand University of Technology, Sahand New Town, Tabriz, Iran Reactor and Catalysis Research Center (RCRC), Sahand University of Technology, Sahand New Town, Tabriz, Iran
Abstract:
In this work, a series of CaO loaded Al-MCM-41 nanocatalysts were synthesized and employed in biodiesel production from sunflower oil. The Al-MCM-41 was used as support for loading CaO with the weight percent of 10, 20 and 30. The ultrasound energy was applied to disperse the CaO active component over Al-MCM-41. The physicochemical characteristics of nanocatalysts were identified by XRD, FESEM and EDX analyses. The XRD patterns of the samples demonstrated formation of MCM-41 and CaO crystals. The FESEM images and EDX analyses revealed the high dispersion of nanoparticles and elements. The performance of nanocatalysts was examined at 70°C, methanol/oil molar ratio of 12 and catalyst loading of 10 wt.% during 8 hours. The conversion of transesterification was calculated 84.2% in the presence of Ca(30)/AM. Also, the reusability of Ca(30)/AM nanocatalyst was tested through 4 cycles and the conversion was 78.3% in the last cycle that demonstrates the high stability of this nanocatalyst.
Keywords:
CaO; Al-MCM-41; Nanocatalyst; Sono-Dispersion; Biodiesel.
Status : Abstract Accepted (Poster Presentation)