TRANSALKYLATION CATALYST FOR PRODUCING MIXED XYLENE FROM AROMATIC COMPOUNDS CONTAINING SULFUR IMPURITY

摘要

The present invention is an aromatic compound, containing for transalkylation from mixed xylene production to the sulfur impurity concentration of my redundancy, it is related to a kind of catalyst, one noble metal, such as platinum, it is in a Zeolite support, cobalt or on the molybdenum in the second metal and nickel phosphide (2 P of Ni), tungsten carbide, this one support catalytic component transalkylation catalyst of offer of third mole molybdenum sulfide. Pass through catalyst used according to the invention, the acidic site of keeping constant catalyst is in a redundant digit simultaneously, and it can be agreed within a kind of hydrogenation catalyst, even if certain yield can be obtained to which impurity contains the sulphur in reaction mixture since the presence of the transalkylation reaction of dimethylbenzene can be produced steadily.