Patent ID: 6359184
Filing Date: 2002-03-19
Classification: B01J,C07C,Y02P

Abstract:
A process for producing xylene from alkylaromatic hydrocarbons containing C9 alkylaromatic hydrocarbons, said process comprising dealkylation to convert ethyltoluene into toluene and subsequent transalkylation to convert toluene or toluene and trimethylbenzene in the C9 alkylaromatic hydrocarbons into xylene,in the presence of a catalyst composition for transalkylation of alkylaromatic C9 hydrocarbons to toluene, comprising: (a) 100 pbw of a hydrogen-type mordenite; (b) at least one material selected from the group consisting of an inorganic oxide and a clay and present in an amount of 40 to 150 parts by weight per 100 parts by weight of mordenite; and (c) at least one metallic substance supported on said support material and comprising a metal or metallic compound selected from the group consisting of platinum and nickel compounds, wherein said metallic substance is provided in the following concentration ranges expressed as parts by weight (â€œpbwâ€ ) of the metal component per 100 parts by weight of said mordenite: platinum: not more than 0.005 nickel: 0.05-1.5.