Abstract
A kinetic model for sunflower oil hydrogenation on a palladium catalyst is proposed based on Horiuty–Polanyi type mechanism and considering either a dissociative or associative adsorption of hydrogen. The derived kinetic laws allow to explain the distinct dependency of saturation and isomerization reactions on hydrogen pressure. Kinetic parameters are identified based on batch slurry hydrogenations carried out at 60–160°C and 2–31 bar with a powdered Pd/Al 2 O 3 catalyst. A statistical analysis is used to select the most suitable adsorption mechanism for H 2 . Evaluation of the Weisz–Prater modulus reveals that limitations to intraparticle diffusion occur despite the particle diameter does not exceed 40 μ m. • Kinetic model for sunflower oil hydrogenation based on Horiuti–Polanyi mechanism • Examination of dissociative and associative hydrogen adsorption mechanisms • Discrimination of hydrogen pressure effect on saturation and isomerization reactions • Experimental validation carried out with Pd/Al 2 O 3 powdered catalyst • Optimization and statistical analysis of the kinetic parameters
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
