BIFUNCTIONAL CATALYST FOR DEALKYLATING ETHYLBENZENE AND ISOMERIZING XYLENE

摘要

PPROBLEM TO BE SOLVED: To provide a catalyst molding for dealkylating ethylbenzene in a raw material containing 8C aromatic hydrocarbons into benzene at a high conversion ratio and isomerizing xylene into paraxylene at a high isomerization ratio. PSOLUTION: The bifunctional catalyst for dealkylating ethylbenzene and isomerizing xylene consists of a composition obtained by blending MFI-type zeolite with an inorganic oxide, is the catalyst molding having a group of pores each having 4-20 nm pore diameter and 0.45 mL/g pore volume and contains an alkaline earth metal. PCOPYRIGHT: (C)2009,JPO&INPIT