Iridium/H-ZSM-5 zeolite catalyst promoted via hydrochlorination or hydrofluorination for the hydroconversion of cyclohexene

摘要

The hydroconversion of cyclohexene (CHE) was carried out in a flow reactor at atmospheric pressure and temperatures of 50-400 degrees C using: Ir/H-ZSM-5, Ir/H-ZSM-5(HCl), and Ir/H-ZSM-5(HF) catalysts. The acid site strength distribution, Ir dispersion, XRD, SEM photography for these catalysts were evaluated. The hydroconversion reaction steps of CHE were found to proceed as follows: CHE -> cyclohexane; CHE -> methylcyclopentenes (MCPEs) -> methylcyclopentane (MCPA); CHE -> cyclohexadienes (CHDEs) -> benzene; benzene -> alkylbenzenes; CHE and others -> hydrocracked products.