Title:
Evaluation of Ethanol Extraction by Gaseous Entrainment in Biodiesel Production by the Ethyl Route
Author(s):
Da Rocha, V.R., Barbosa, E.L., Dutra, E.D., Albuquerque, A., Sonego, J.L.S.
Document(s):
Paper
Poster
Abstract:
Biodiesel is a biofuel that can be used as a total or partial substitute for mineral diesel, and is commonly produced by the transesterification method via the methyl route, although there is an abundant supply of ethanol in Brazil, which makes the ethyl route an advantageous and competitive option in relation to methanol. This antagonism occurs because methanol has physical and chemical advantages in the transesterification reaction in relation to ethanol, allowing rapid decantation between the two final phases of the process. The objective of this study was to study an alternative to circumvent the problem of emulsion formation between biodiesel and glycerol, due to the presence of ethyl alcohol in the solution, using the gaseous entrainment method as a means of removing the ethanol present in the solution. The possibility of extracting up to 95% of the ethanol present in the mixture, corresponding to approximately 166 g, within just 1 h of gaseous entrainment, was verified. Furthermore, the influence of flow rate on the gaseous entrainment process was explored, revealing a linear relationship between the overall ethanol extraction rate and the flow rate used, within the studied range of 4 to 12 L/min.
Keywords:
biofuel, ethyl route, gaseous entrainment
Topic:
Biomass Conversion to Intermediate Bioenergy Carriers and Sustainable Biofuels
Subtopic:
Biofuels and renewable hydrocarbon biofuels
Event:
33rd European Biomass Conference and Exhibition
Session:
5AV.2.8
Pages:
921 - 924
ISBN:
978-88-89407-25-7
Paper DOI:
10.5071/33rdEUBCE2025-5AV.2.8
Price:
FREE
