Patent ID: 6388156
Filing Date: 2002-05-14
Classification: B01J,C07C,Y02P

Abstract:
A method for forming para-xylene (PX) comprising simultaneously forming a methylating agent from a combination selected from the group consisting of:CO and H2, CO2 and H2, and CO, CO2 and H2; and reacting a feed including an aromatic compound selected from the group consisting of toluene, benzene and mixtures thereof with the methylating agent in the presence of a catalytic reaction system which converts at least 10% of the aromatic compound to a mixture of xylenes, where PX comprises at least 48% of the mixture of xylenes, and where the catalytic reaction system comprises:a first component selected from the group consisting of metals and metal oxides, where the metal element is selected from the group consisting of the Groups 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16 of the Periodic Table of Elements (new IUPAC notation); and a second component selected from the group consisting of crystalline or amorphous aluminosilicates having one-dimensional channel structure, para-alkyl selectivated amorphous aluminosilicates, para-alkyl selectivated substituted aluminosilicates, crystalline or amorphous substituted silicates having one-dimensional channel structure, para-alkyl selectivated substituted silicates, crystalline or amorphous aluminophosphates, para-alkyl selectivated crystalline or amorphous aluminophosphates, para-alkyl selectivated zeolite-bound zeolites, para-alkyl selectivated substituted aluminophosphates, and mixtures thereof.