Matius, Michelle; Mastuli, Mohd Sufri published the artcile< Catalytic esterification of palm fatty acid distillate into biodiesel over sulfonated iron oxide catalyst>, Formula: C19H34O2, the main research area is sulfonated iron oxide esterification catalyst surface structure area.
The palm fatty acid distillate (PFAD), as a low-cost feedstock, was catalytically esterified into biodiesel (also known as fatty acid Me ester, FAME) using sulfonated iron oxide (HSO3-/Fe2O3) catalyst. In this work, the catalyst was synthesized via self-propagating combustion (SPC) method, towards a greener synthesis technique, followed by sulfonation with chlorosulfonic acid (HSO3Cl) to enhance the catalyst’s acid properties. The catalysts were characterised and the success of sulfonation process was determined From this study, Fe2O3 catalysts were proven to be pure and single-phase. The success of the sulfonation then was verified by the presence of sulfur, functional groups of S-O asym. vibration and S = O sym. vibration, and increasing total acidity. Then, the sulfonated Fe2O3 catalyst was used to esterify the PFAD feedstock in methanol in which the esterification parameters were also optimized to obtain maximum free fatty acid (FFA) conversion. It was found that 15:1 of methanol-to-PFAD molar ratio, 4 weight% of catalyst loading, 80°C of reaction temperature and 5 h of reaction time produced 95.5% of FFA conversion. Interestingly, the sulfonated Fe2O3 catalyst can be considered as a superacid solid catalyst that enables boosting the esterification of the PFAD feedstock into biodiesel.
Journal of the Japan Institute of Energy published new progress about Acid number. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics