Esterification of acidic oils over a versatile amorphous solid catalyst.
An amorphous SiO(2)-ZrO(2) catalyst shows high activity in the esterification of free fatty acids contained in vegetable oils while at the same time promoting the transesterification of triglycerides. The catalyst is hence a good candidate for a low-waste deacidification pretreatment or for a one-pot biodiesel production process starting from oils with a high acid content.
Zaccheria
Federica
F
ISTM-CNR, Milano, Italy.
Brini
Simona
S
Psaro
Rinaldo
R
Scotti
Nicola
N
Ravasio
Nicoletta
N
D002384:Catalysis; D004736:Energy-Generating Resources; D004951:Esterification; D005230:Fatty Acids, Nonesterified / Q000737:chemistry*; D005742:Gasoline; D055772:Green Chemistry Technology / Q000379:methods*; D010938:Plant Oils / Q000737:chemistry*; D012822:Silicon Dioxide; D014280:Triglycerides / Q000737:chemistry*; D015040:Zirconium
D005230:Fatty Acids, Nonesterified; D005742:Gasoline; D010938:Plant Oils; D014280:Triglycerides; D012822:Silicon Dioxide; D015040:Zirconium; C028541:zirconium oxide