Batch Heterogeneous Catalytic Selective Hydrogenation of Vegetable Oils Over Lindlar Catalyst: Kinetic Modeling Supported by Reaction Mechanisms.

ABSTRACT: Heterogeneous catalytic selective hydrogenation (HCSH) of vegetable oils is a reactive pathway to maximize the fraction of monounsaturated oleic acid, a component of industrial interest, thanks to its stability and low-temperature properties. Kinetics of HCSH is usually interpreted by pseudo-first order laws, as previously done by this research group with data from batch tests on canola oil (Lindlar catalyst, 120-180 °C, 0.4-1.2 MPa): the pseudo-first order kinetics could interpret the observed phenomenon only by variable selectivities (i.e., ratios of kinetic constants). The present work proposes a refined modeling by Hougen-Watson approach. Detailed reaction mechanisms were hypothesized, challenging the following alternatives: (i) H₂ adsorption on the catalyst occured (Hinshel

SUBMITTER: Pellegrino E 

PROVIDER: S-EPMC12680578 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature