Hydrodechlorination of 1,2-dichloropropane over Pt-Cu/C catalysts: Coke formation determined by a novel technique-TEOM

摘要

Catalyst deactivation in the form of coking, during the hydrodechlorination of 1,2-dichloropropane (12DCP) over Pt-Cu/C catalysts, has been investigated with a novel microbalance-TEOM. The amount of coke deposition on both fresh and spent catalysts has been continuously measured. The activity and selectivity to propene decreases with an increase in the coke formation. The catalyst deactivation is mainly attributed to coke deposition. The TEOM technique with a well-defined gas-phase system, a good mass resolution, and a long-term stability is uniquely suitable to study simultaneous adsorption, reaction, and coke deposition.