Title:
Production of Biodiesel from By-Product of Sunflower Oil Refining
Author(s):
Azcan, N., Misiroǧlu, P.
Document(s):
Paper
Abstract:
Although biodiesel is becoming more and more important as an environmentally friendly and renewable fuel, the high cost of feedstock for biodiesel production is still the biggest problem to be resolved for more proliferated use of it. Sunflower soap stock (SS) as a lipid-rich by product produced during vegetable oil refining process, is one of the most promising candidates for biodiesel production because of its easy collection [1]. In this study, obtaining biodiesel from SS as an alternative fuel for diesel engines was studied. Two stage processes was performed to obtain biodiesel. In this process, SS was fully saponified by using an excess alkaline catalyst in the first stage. In the second stage, conventional acidulation has been applied to separate high acid oil having over 97% free fatty acid. Then esterification reactions were carried out using H2SO4 as a catalyst at 65 oC. Optimum reaction conditions such as catalyst amount, reaction time, and methanol: SS ratio were investigated. Highest methyl ester (96.84%) content of biodiesel was obtained at 65oC, 10 minutes reaction time using methanol: soapstock molar ratio of 30:1, H2SO4:soapstock molar ratio of 5:1. Calorific value of biodiesel was determined as 36297 J/g.
Keywords:
biodiesel, bioenergy, biofuels, esterification, soapstock, acidification
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.4.33
Pages:
1774 - 1775
ISBN:
978-88-89407-54-7
Paper DOI:
10.5071/20thEUBCE2012-3DV.4.33
Price:
FREE
