Title:
Ethanolysis Reaction Kinetics of Bio-Oils for Biodiesel Production in Developing Countries
Author(s):
Kazembe-Phiri, H., Matsumura, Y., Minowa, T.
Document(s):
Paper
Abstract:
In an effort to introduce a sustainable source of power in the developing countries of Sub-Saharan African region, we conducted ethanolysis reaction kinetics, to test the kinetics of the improved reaction system and determine its essential kinetic parameters, using a new approach for biodiesel production that employed thermally pretreated premixture of groundnut (Arachis hypogaea) crude oil feedstock, calcium hydroxide (Ca(OH)2) and glycerol (GL). In a series of reactions, we changed the reaction temperatures and times and measured reaction rate, fatty acid ethyl ester (FAEE) conversion and the kinetic parameters. The parameters have been successfully determined using the detailed kinetic model. The new reaction system was effective achieving reasonable reaction rates and optimal FAEE yields. These findings showed that thermal pretreatment of the premixture, prior to reaction, was important for the improved kinetics due to decomposition of triglyceride (TG) to reactive intermediates such as diglycerides (DG) and monoglycerides (MG), and Ca(OH)2 catalytic effect. In conclusion, our study has effectively ascertained the kinetics of the new reaction system and measured its essential kinetic parameters in terms of activation energy and pre-exponential factor for biodiesel production via ethanolysis with solid catalysts in developing countries of Sub-Saharan Africa.
Keywords:
biodiesel, catalyst, ethanol, reactivity
Topic:
Fuels from biomass
Subtopic:
Production, supply and use of liquid biofuels from oilseeds
Event:
18th European Biomass Conference and Exhibition
Session:
VP3.3.10
Pages:
1794 - 1796
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-VP3.3.10
Price:
FREE
