Unraveling the hydrogen spillover in tandem propane dehydrogenation and reverse water gas shift reaction.

ABSTRACT: The integration of CO₂ into the dehydrogenation of propane (PDH) holds significant promise for both propylene production and greenhouse gas utilization. However, a pivotal challenge lies in mitigating the undesirable dry reforming of propane (DRP), which diminishes propylene selectivity compared to direct PDH processes. Herein, we describe a coupled process that integrates PDH with reverse water gas shift (RWGS) using a tandem catalytic system. The PtSn/Al₂O₃ analogue performs the dehydrogenation reaction, while an adjacent defective CeO_x/Al₂O₃ at nanoscale acts as the hydrogenation sites for CO₂. Catalysis and kinetic studies demonstrate the in-situ removal of hydrogen from PtSn/Al₂O₃ to adj

SUBMITTER: Tian K 

PROVIDER: S-EPMC12630761 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature