Process for producing middle distillates by using a combination of an intermediate pore size silicoaluminophosphate molecular sieve phosphate catalyst and hydrocracking catalyst for hydrocracking the second stage

摘要

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.