TY - JOUR
T1 - Biodiesel microfiltration dynamics during transesterification of rapeseed Oil
AU - Muñoz, Robinson
AU - Reyes, Isaac
AU - Ciudad, Gustavo
AU - Jeison, David
AU - Navia, Rodrigo
N1 - Publisher Copyright:
© 2014 American Scientific Publishers.
PY - 2014/10/1
Y1 - 2014/10/1
N2 - The aim of this work was to evaluate fatty acid methyl esters (FAME or biodiesel) microfiltration dynamics during transesterification of rapeseed oil using a ceramic membrane of 0.2 -m size pore. Moreover, ternary phase diagrams were studied and applied for glycerol separation. At the beginning, membrane filtration causes TG (Triglycerides) retention, allowing methanol to cross through the membrane. However, a low methanol to oil molar ratio allows TG to cross the membrane. After this stage, the predominant blend is constituted by a one-phase FAME and TG mixture. Finally, glycerol can be completely retained in all the evaluated trials. Regarding FAME/TG/methanol system, immiscibility between TG and FAME is achieved at 73 wt% in FAME, 12 wt% in methanol and 15% wt in TG. This is the critical composition of the non-polar phase for obtaining an efficient FAME/TG separation during transesterification reaction. Regarding TG/glycerol/methanol system, TG retention is not a problem if TG concentration exceeds 10 wt%.
AB - The aim of this work was to evaluate fatty acid methyl esters (FAME or biodiesel) microfiltration dynamics during transesterification of rapeseed oil using a ceramic membrane of 0.2 -m size pore. Moreover, ternary phase diagrams were studied and applied for glycerol separation. At the beginning, membrane filtration causes TG (Triglycerides) retention, allowing methanol to cross through the membrane. However, a low methanol to oil molar ratio allows TG to cross the membrane. After this stage, the predominant blend is constituted by a one-phase FAME and TG mixture. Finally, glycerol can be completely retained in all the evaluated trials. Regarding FAME/TG/methanol system, immiscibility between TG and FAME is achieved at 73 wt% in FAME, 12 wt% in methanol and 15% wt in TG. This is the critical composition of the non-polar phase for obtaining an efficient FAME/TG separation during transesterification reaction. Regarding TG/glycerol/methanol system, TG retention is not a problem if TG concentration exceeds 10 wt%.
KW - Biodiesel
KW - Ceramic membrane
KW - Emulsion
KW - Fatty acid methyl ester
KW - Refining
UR - http://www.scopus.com/inward/record.url?scp=84919330490&partnerID=8YFLogxK
U2 - 10.1166/jbmb.2014.1469
DO - 10.1166/jbmb.2014.1469
M3 - Article
AN - SCOPUS:84919330490
VL - 8
SP - 506
EP - 511
JO - Journal of Biobased Materials and Bioenergy
JF - Journal of Biobased Materials and Bioenergy
SN - 1556-6560
IS - 5
ER -