Title:
Biodiesel from Fried Oil Using Microwaves, Ultrasounds and Heterogeneous Catalysis
Author(s):
Viola, E., Valerio, V., Zimbardi, F.
Document(s):
Paper
Abstract:
To evaluate the efficiency of the transesterification of fried oils by using heterogeneous catalysis, three different systems have been compared: 1) flask in hot bath with magnetic stirrer; 2) flask in microwave oven with a stirring arm; 3) flask in ultrasound bath with a stirring arm. The CaO and SrO were used as heterogeneous catalysts. The transesterification has been carried out at 65 °C, using methanol/oil ratio 12:1 and catalyst load of 0.7%. The efficiency of the processes has been evaluated in terms of FAME yields. Results have shown that, using microwaves, the reaction is more efficient (88% yield with CaO, 85% with SrO) than using the classical hot bath system (78% with CaO, 76% with SrO). Good results have been obtained with the ultrasound system, in particular with CaO: the transesterification rate has been the fastest and the reaction was completed in about 30 minutes.
Keywords:
biodiesel, transesterification, catalyst
Topic:
R&D on Processes for Solid, Liquid and Gaseous Fuels from Biomass
Subtopic:
Oil-based biofuels
Event:
20th European Biomass Conference and Exhibition
Session:
3DV.4.37
Pages:
1783 - 1785
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-3DV.4.37
Price:
FREE
