A PALLADIUM MODIFIED METAL-PROMOTED CATALYST

摘要

Processes for the conversion of an aromatic substrate over a mordenite catalyst modified by the inclusion of nickel and a second Group 10 metal selected from palladium, platinum and mixtures thereof. A feedstock containing at least one aromatic compound is brought into contact with the catalyst under conditions effective for the conversion of the aromatic compound to at least one derivative product. The resulting reaction product is then removed from the modified mordenite catalyst. The conversion reaction includes a toluene disproportionation reaction in which the feedstock contains toluene and the product recovered from the catalyst contains benzene and xylene. The conversion reaction can also involve a transalkylation reaction in which a mixture of benzene and xylene is brought into contact with the nickel and palladium-modified mordenite to produce a product which contains a monoalkyl benzene. The conversion can also involve the methylation of benzene to produce toluene or the methylation of toluene to produce xylene. The modified mordenite catalyst may contain nickel in an amount greater than the amount of platinum or palladium in the catalyst.