METHOD FOR SELECTIVE DEALKYLATION OF AN ALKYL-SUBSTITUTED C9+ AROMATIC COMPOUND AT LOW TEMPERATURES USING A BIMODAL POROUS CATALYST USING A DEALKYLATION CATALYST OF A BIMODAL POROUS STRUCTURE

摘要

PURPOSE: A method for selective dealkylation of an alkyl-substituted C9+ aromatic compound is provided to selectively convert a large amount of C2+ alkyl groups into BTX (benzene, toluene, xylene) within a short time.;CONSTITUTION: A method for selective dealkylation of an alkyl-substituted C9+ aromatic compound comprises a step of making a dealkylation catalyst in a feed stream including an aromatic compound contact with at least nine carbon atoms substituted by C2+ alkyl groups. The dealkylation catalyst includes crystalline aluminosilicate with a bimodal structure which includes mesopores with an average particle diameter of 20-100 angstroms, micropores with an average particle diameter of 4-20 angstroms, and metal supported in the crystalline aluminosilicate.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Conversion rate of ethyl toluenes (%); (BB) Time on stream (min)