| abstract |
The invention relates to a method for producing middle distillates from a paraffinic filler produced by Fischer-Tropsch synthesis, using a hydrocracking / hydroisomerization catalyst comprising at least one hydrodehydrogenated metal selected from the group formed by the Group VIB metals and Group VIII of the periodic classification and a support comprising at least one silica-alumina and at least one zeolite selected from the group consisting of zeolites of structural type TON, FER, MTT, zeolites ZBM-30, ZSM-48 and COK-7, taken alone or in combination, said process operating at a temperature between 270 and 400 degrees C, a pressure of between 1 and 9 MPa, a space velocity between 0.5 and 5 h-1. a flow rate of hydrogen adjusted to obtain a ratio of 400 to 1500 normal liters of hydrogen per liter of charge. |