초록 |
Hydro-conversion reactions were carried out at the given condition to study ring opening reactions of 1-methyl naphthalene using NiMoS supported on gamma alumina and alumina-coated/mixed USY zeolites. NMACZ-2 showed enhanced reactivity for HC and produced (alkyl)benzenes with the highest yield. The tetralin species produced using NMACZ-2 moved into the alumina-coated USY zeolite support before undergoing HYD to produce decalin species, which were rapidly and selectively hydro-cracked into (alkyl)benzenes. A large amount of decalin was produced through the HYD of tetralin without significant cracking. Bulk phase Mo oxide species on NMAZ, as well as deactivation of the catalysts due to coke formation over the naked zeolite surface, inhibited the ring opening of tetralin, decreasing the yield of (alkyl)benzene. |