Abstract
The main drawbacks of biodiesel production are high reaction temperatures, stirring and time. These could be alleviated by aiding transesterification with alternative energy sources, i.e. ultrasound (US). In this study, biodiesel was obtained from Camelina sativa oil, aided with an ultrasonic probe (20kHz, 70% duty cycle, 50% amplitude). Design of experiments included the combination of sonication and agitation cycles, w/wo heating (50°C). To gain knowledge about the implications of the proposed methodology, conventional transesterification was optimized, resulting in higher needs on catalyst concentration and reaction time, compared to the proposed reaction. Although FAME content met EN 14103 standard, FAME yields were lower than those provided by US-assisted transesterification. Energy consumption measurements showed that ultrasound assisted transesterification required lower energy, temperature, catalyst and reaction time.
References
Nov 10, 2006·Bioresource Technology·Olivera S StamenkovićD U Skala
Mar 28, 2007·Analytica Chimica Acta·M D Luque de Castro, F Priego-Capote
Sep 20, 1991·Science·E B Flint, K S Suslick
Feb 12, 2008·Bioresource Technology·Y WangM H Zong
Sep 5, 2009·Journal of Chromatography. a·N Sánchez-AvilaM D Luque de Castro
Sep 9, 2009·Bioresource Technology·Le Tu ThanhHiroshi Bandow
Sep 11, 2009·Bioresource Technology·Bryan R Moser, Steven F Vaughn
Mar 12, 2010·Bioresource Technology·Le Tu ThanhHiroshi Bandow
Aug 12, 2010·Bioresource Technology·S PinziM P Dorado
Sep 10, 2010·Bioresource Technology·S PinziM P Dorado
Apr 13, 2011·Bioresource Technology·Ritesh KumarN Chandrashekar
May 27, 2011·Bioresource Technology·S PinziM P Dorado
Apr 10, 2013·Bioresource Technology·Hamidreza JaliliannosratiIman Noshadi
Jul 6, 2014·Bioresource Technology·Maria Valderez Ponte RochaLuciana Rocha Barros Gonçalves