CATALYST FOR ISOMERIZING XYLENES AND METHOD FOR ISOMERIZING XYLENES

摘要

PURPOSE:To improve dealkylating activity of ethylbenzene, to actualize reduction in reaction temperature, to increase recovery ratio of xylene by suppression of side reactions for the actualization of reduction in reaction temperature and to prolong a catalytic life by isomerizing xylene containing ethylbenzene by using a specific catalyst. CONSTITUTION:This isomerizing catalyst for a xylene containing ethylbenzene comprises a catalyst having =2g adsorption of p-xylene based on 100g zeolite in adsorbing p-xylene at 120 deg.C under vapor pressure of p-xylene at 0-2 deg.C and requiring =2,000 minutes for adsorbing o-xylene at 120 deg.C under vapor pressure of o-xylene at 0-2 deg.C until the adsorption reaches 30 % adsorption ability of p-xylene. The catalyst is used to provide a method for isomerizing a xylene.