Iron Oxide Catalysts Supported on Porous Silica for the Production of Biodiesel from Crude Jatropha Oil

Abstract

A heterogeneous catalyst, FeOx/SiO2, prepared by the pore‐filling method, was found to be active in the transesterification of crude Jatropha oil with methanol. When the transesterification reaction was carried out with a reaction temperature of 220 °C, a catalyst amount of 15 wt%, a methanol/oil molar ratio of 218:1, and a reaction time of 3 h, the yield of fatty acid methyl esters (FAME) in the product exceeded 99.0 %, and met with EN standards for allowable contents of glycerine and mono‐, di‐, and tri‐glycerides. The correlation between the FAME production activity and measured acidity of the FeOx/SiO2 catalysts showed that the transesterification reaction was promoted via the acidic function of these catalysts, which are less inhibited by coexisting free fatty acids in the feedstock triglycerides.

Widely used catalysts in biodiesel production: a review

“…A wide range of acidic mixed metal oxide catalysts has been utilized to overcome the problem associated with high FFA content in low-cost biodiesel feedstock employed in FAME production (Table 18). Suzuta et al 330 reported the utilization of the Fe 2 O 3 -SiO 2 catalyst in the conversion of JCO to FAME. The catalyzed reaction displayed 95.6% FAME yield under the optimized reaction conditions.…”

Synthesis and Characterizations of Needle- Shaped Cuo Nanoparticles.

“…[19,20]. There have been very few studies on nano metal oxides catalysed transesterification to produce FAME (Fatty Acid Methyl Ester) [21][22][23]. Among the availing transition metal oxides, CuO is one of the potential p-type semiconductors and gains considerable attention due to its excellent optical, physical and magnetic properties [24][25][26][27].…”

Nano-catalysts with magnetic core: sustainable options for greener synthesis

“…The incorporation of a second metal serves to futher expand the catalytic abilities of Fe and incorporation of oxides on to silica has been utilized for the biodiesel production [37]. Supporting various ligands on the magnetic nanoparticles facilitates synthesis of several chemical entities with sustainable advantages, predominant being the magnetic separation and recyclability aspects [38,39].…”