PROCESS TO PREPARE A LUBRICATING BASE OIL AND A GAS OIL

摘要

A process to prepare a waxy raffinate product by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch derived feed, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tropsch product is at least 0.2 and wherein at least 30 wt % of compounds in the Fischer-Tropsch derived feed have at least 30 carbon atoms; and, (b) isolating from the product of step (a) a waxy raffinate product having a T10 wt % boiling point of between 200° C. and 450° C. and a T90 wt % boiling point of between 400° C. and 650° C.