Hydrotreating process employing thermactivated catalysts comprising catalytic metals-free crystalline zeolitic molecular sieve particles dispersed in a gel matrix

摘要

Method of activating a catalyst composite comprising particles of a catalytic metals-free crystalline zeolitic molecular sieve dispersed in a gel matrix comprising silica-alumina, a Group VI hydrogenating component and a Group VIII hydrogenating component, which method comprises heating said catalyst composite in an oxygen-containing gas stream at 1200° to 1600° F. for 0.25 to 43 hours, and the catalyst composite so activated.