A process for converting heavy hydrocarbon oils byhydrocracking into products of lower average molecular weight and lower boiling point

摘要

Process for converting hydrocarbon oils into products of lower average molecular weight and lower boiling point comprising contacting a hydrocarbon oil containing less than 200 ppm N at elevated temperature and pressure in the presence of hydrogen with a catalyst A comprising a wide pore zeolite, a binder and at least one hydrogenation component of a Group VI and/or Group VIII metal, and wherein the hydrocarbon oil is subsequently, without intermediate separation or liquid recycle, contacted with an amorphous silica-alumina containing catalyst B comprising at least one hydrogenation component of a Group VI and/or Group VIII metal.