Kinetics of fatty acid ketonization in liquid phase with anatase and rutile TiO2 catalysts

Catalytic ketonization of carboxylic acids is promising for the synthesis renewable products. Despite its potential, fatty acid and kinetics in liquid phase are less investigated. This work encompasses kinetic evaluation two TiO2 catalysts (anatase rutile) C-C coupling C12-C18 inert dodecane solvent. The rutile catalyst, with higher Lewis density, showed intrinsic activity more favorable activation energy barriers. Unfortunately, this material suffers from stronger product inhibition by ketone, water carbon dioxide compared to anatase. Langmuir-Hinshelwood models were developed validated against experimental data, supporting that adsorbed species rate determining mechanism. site density distance between active Ti at surface invoked explain patterns. impacts substrate chain length, solvent purging on investigated, showcasing potential future improvements.