Patent ID: 8071828
Filing Date: 2011-12-06
Classification: C07C

Abstract:
1. A process for producing xylene by transalkylation of a C 9 + aromatic hydrocarbon feedstock, the process comprising: (a) supplying the feedstock, at least one C (b) with the feedstock, C (c) periodically interrupting the supply of the feedstock and said at least one C wherein said at least one metal of said first catalyst composition comprises at least one of platinum, palladium, iridium, and rhenium; and wherein said at least one metal is present in said first catalyst composition in an amount between about 0.01 and about 5 wt % of the catalyst composition; and wherein said first catalyst composition further comprises at least one further metal comprises at least one of copper, silver, gold, ruthenium, iron, tungsten, molybdenum, cobalt, nickel, tin and zinc; wherein said at least one further metal is present in said first catalyst composition in an amount between about 0.01 and about 1 wt % of the catalyst composition.