METHOD FOR ISOMERIZING AROMATIC C8 CUTS CAPABLE OF IMPROVING A TRANSITION FROM ETHYLBENZENE TO PARA-XYLENE

摘要

PURPOSE: A method for isomerizing aromatic C9 cuts is provided to obtain an improved an ethylbenzene conversion material while maximizing para-xylene-fertilization fraction.;CONSTITUTION: A method for isomerizing aromatic C8 cuts comprises: a step of reducing a catalyst; a step of activating the catalyst by bring the catalyst into contact with a feed material at a temperature of 450-600 °C, hydrogen partial pressure of 2-45 bar, total pressure of 5-50 bar and space velocity of 0.25-30 h^-1; a step of introducing 50-8000 ppm of water into the feed material; and a step of bring the activated catalyst into contact with the water-containing feed material under a isomerization condition.;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Delta conversion/%