期刊
BIORESOURCE TECHNOLOGY
卷 185, 期 -, 页码 116-124出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.02.090
关键词
FAME; Sonication; Ultrasonic probe; Biofuel; Energy requirement
资金
- Spanish Ministry of Economy and Competitiveness [ENE2010-15159, ENE2013-47769-R]
- Andalusian Research, Innovation and Enterprise Council, Spain [TEP-4994]
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 (20 kHz, 70% duty cycle, 50% amplitude). Design of experiments included the combination of sonication and agitation cycles, w/wo heating (50 degrees 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. (C) 2015 Elsevier Ltd. All rights reserved.
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