کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
300394 | 512480 | 2013 | 6 صفحه PDF | دانلود رایگان |
Application of ultrasound-assisted biodiesel production process from Jatropha oil catalyzed by activated carbon-supported tungstophosphoric acid catalyst was studied. Influences of ultrasonic energy on different process variables were elucidated. Reaction variables i.e. reaction time (10–50 min), reactants' molar ratio (5:1–25:1), ultrasonic amplitude (30–90% of the maximum sonifier power) and catalyst amount (2.5–4.5 w/w oil) were studied. A mathematical representation for biodiesel yield was successfully generated. A yield of 91% was achieved in just 40 min at a moderate ultrasonic amplitude (∼60%), high molar ratio (25:1) and low reaction temperature (65 °C). Interactions between the variables were also validated statistically. Leaching study revealed that the reaction was predominately heterogeneous in nature.
Figure optionsDownload as PowerPoint slideHighlights
► Ultrasonic-assisted process for biodiesel production from Jathropha oil.
► Heteropolyacid-supported on activated carbon catalyst.
► Optimization and interactions between four reaction variables.
► Validation of mathematical representation for the biodiesel yield.
► Great enhancements in terms of reaction time and temperature.
Journal: Renewable Energy - Volume 50, February 2013, Pages 427–432