TY - JOUR
T1 - Purification of glycerol from biodiesel production by sequential extraction monitored by 1H NMR
AU - Sodré, José Ricardo
AU - Contreras-andrade, Ignacio
AU - Avella-moreno, Eliseo
AU - Sierra-cantor, Jonathan Fabián
AU - Guerrero-fajardo, Carlos Alberto
PY - 2015/4/1
Y1 - 2015/4/1
N2 - The purification of raw glycerin in biodiesel production can provide economic benefits and help to avoid residue accumulation, thus reducing environmental impacts. In this work, the glycerin obtained from biodiesel production by catalytic transesterification of waste cooking oil was purified by sequential extraction with organic solvents, followed by discoloration with activated coal and monitoring by 1H NMR spectroscopy. Through sequential extraction with petroleum ether and toluene, in that order, followed by discoloration with activated carbon, 99.2% pure glycerin was obtained. This technique is shown to allow for glycerin purification using less drastic or hazardous conditions than those commonly applied in vacuum distillation.
AB - The purification of raw glycerin in biodiesel production can provide economic benefits and help to avoid residue accumulation, thus reducing environmental impacts. In this work, the glycerin obtained from biodiesel production by catalytic transesterification of waste cooking oil was purified by sequential extraction with organic solvents, followed by discoloration with activated coal and monitoring by 1H NMR spectroscopy. Through sequential extraction with petroleum ether and toluene, in that order, followed by discoloration with activated carbon, 99.2% pure glycerin was obtained. This technique is shown to allow for glycerin purification using less drastic or hazardous conditions than those commonly applied in vacuum distillation.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0378382014005335
U2 - 10.1016/j.fuproc.2014.12.016
DO - 10.1016/j.fuproc.2014.12.016
M3 - Article
SN - 0378-3820
VL - 132
SP - 99
EP - 104
JO - Fuel Processing Technology
JF - Fuel Processing Technology
ER -