Mordenite zeolite catalysts modified with cerium and use thereof for the isomerisation of an aromatic C8 fraction

摘要

A catalyst consists of 2-98 wt. % mordenite (w.r.t. total wt. of catalyst) on which 7-40 wt. % Ce is deposited. The catalyst also contains 0.01-3 wt. % (w.r.t. total wt. of catalyst) of at least one metal from group VII. Also claimed is a process for the isomerisation of a C* aromatic fraction containing xylenes operating at 240-600 degrees C, 0.05-10 MPa, and space velocity 0.5-200 h<-1> and hydrogen at a ratio hydrogen/hydrocarbon 0.5-12, using the above catalyst.