Title:
The Interesterification of Rapeseed Oil with Methyl Acetate in the Presence of Tert-Pentoxide Solutions in Toluene and Cyclohexane
Author(s):
Kampars, V., Gravins, R., Kampare, R.
Document(s):
Paper
Slide presentation
Abstract:
The investigation of catalytic activity of two catalytic systems potassium tert-pentoxide/toluene (tP/TOL) and potassium tert-pentoxide/cyclohexane (tP/CYH) in interesterification reactions of rapeseed oil with methyl acetate was performed using catalyst to oil molar ratio (COMR) values in region 0.02 – 0.12 and methyl acetate to oil molar ratio (MAOMR) in region 18 – 30 at 55 oC. The investigated catalytic systems showed approximately the same activity in the production of fatty acid methyl esters (FAME) as the previous investigated catalytic system potassium tert-butoxide/tetrahydrofuran but ensured higher stability and yield of triacetin. The increase of MAOMR from 18 to 30 allowed to increase the summary yield of FAME and triacetin by 4 – 6 % and decrease the content of all compounds containing free hydroxyl groups, excluding diacetin, the content of which increased. The reaction mixture obtained at MAOMR 30 with yield 120% has good fuel characteristics, for example, viscosity lower than 5 mm2/s. Carbon residue of obtained raw biofuel can be improved by a single washing with water.
Keywords:
rapeseed oil, alkoxide catalysts, interesterification
Topic:
Biomass Conversion Technologies for Energy Carriers, Chemicals and Materials
Subtopic:
Oil-based biofuels
Event:
27th European Biomass Conference and Exhibition
Session:
3BO.7.2
Pages:
1059 - 1063
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-3BO.7.2
Price:
FREE
