6533b827fe1ef96bd1285dec

RESEARCH PRODUCT

Interesterification of triglycerides with methyl acetate for biodiesel production using a cyclodextrin-derived SnO@γ-Al2O3 composite as heterogeneous catalyst

Claudia PrestigiacomoMartina BiondoAlessandro GaliaEric MonflierAnne PonchelDominique PrevostOnofrio ScialdoneSébastien TilloyRudina Bleta

subject

Fuel TechnologyGeneral Chemical EngineeringOrganic Chemistry[CHIM]Chemical SciencesEnergy Engineering and Power Technology[CHIM.CATA]Chemical Sciences/CatalysisSettore ING-IND/27 - Chimica Industriale E TecnologicaAlumina Biodiesel Cyclodextrin Interesterification Methyl esters Tin oxide

description

International audience; Particle morphology and surface properties of metal oxides are topics of great importance in the field of heterogeneous catalysis. Herein, we have developed a molecular-colloidal coassembly approach combined with an ultrasonic-assisted precipitation method to fabricate SnO@γ-Al2O3 composites with tuneable pore size and well-defined octahedral-shape crystal structure. The supramolecular assemblies formed between the randomly methylated β-cyclodextrin (RaMeβCD) and Pluronic F127 were employed as template to tailor the size and shape of γ-Al2O3 nanoparticles and direct their assembly almost exclusively on the surface of micrometer-sized SnO single crystals. Results revealed that the cooperative action of the supramolecular template and γ-Al2O3 nanoparticles may have a critical effect on the growth and orientation of SnO microcrystals and ultimately determine their catalytic performance in the interesterification of rapeseed oil with methyl acetate. The compartmentalized SnO@γ-Al2O3 structures could achieve fatty acid methyl esters (FAME) and triacetin (TA) yields of 33.5% and 1.5% respectively after 30 min at 210 °C, exceeding by 38% the FAME yield of the commercial catalyst.

yearjournalcountryeditionlanguage
2022-08-01
10.1016/j.fuel.2022.124026https://hdl.handle.net/10447/555880