PROCESS FOR PREPARING MIDDLE DISTILLATES USING A COMBINATION OF AN INTERMEDIATE PORE SIZE SILICOALUMINOPHOSPHATE MOLECULAR SIEVE CATALYST AND A HYDROCRACKING CATALYST FOR SECOND STAGE HYDROCRACKING

摘要

2089174 9203519 PCTABS00011 The present invention relates to a process for preparing middle distillate hydrocarbons from a denitrogenated hydrocarbonaceous feedstock comprising contacting the feedstock with a catalyst comprising an intermediate pore size silicoaluminophosphate molecular sieve and at least one hydrogenation component, and a large-pore hydrocracking catalyst, and recovering a hydrocarbonaceous effluent wherein more than about 40 % by volume of the effluent boils above about 300 ·F and below about 725 ·F and has a pour point below 0 ·F.