Enhancing Hydrocracking Catalyst Performance and Lifetime through Surfactant-Templated Mesoporosity in Pt/HUSY Zeolites.

ABSTRACT: The development of catalysts capable of overcoming mass transport limitations remains a crucial challenge in hydrocracking processes, particularly for bulky linear hydrocarbons, such as long-chain paraffins. In this study, we report the synthesis of hierarchical Pt/HUSY catalysts via a surfactant-templating strategy that introduces highly interconnected intracrystalline mesoporosity while preserving most of the zeolite's crystallinity and acidity, significantly enhancing molecular diffusion, facilitating better access to acid sites, and alleviating the diffusion limitations typically associated with purely microporous zeolites. Catalytic testing revealed a marked increase in hexadecane cracking activity, especially in catalysts with longer surfactant treatment times (Pt/CBV780_20h and Pt/C

SUBMITTER: de Paula NFL 

PROVIDER: S-EPMC12797223 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature