METHOD FOR CONVERTING CHARGES FROM RENEWABLE SOURCES INVOLVING COPROCESSING WITH A PETROLEUM FEEDSTOCK, USING A MOLYBDENUM-BASED CATALYST

摘要

The invention relates to a method for the coprocessing-based hydroprocessing of petroleum feedstocks mixed with at least one charge from renewable sources, in order to produce fuel bases (kerosene and/or gas oil) having a sulphur content below 10 ppm. The method comprises: a first hydroprocessing step in which the charge moves into at least a first fixed-bed catalytic area including at least one supported or solid catalyst comprising an active phase formed by a sulphur element from group VIB, whereby said element from group VIB is molybdenum and the catalyst takes the form of sulphur and also includes at least one doping agent selected from among phosphorus, fluorine and boron; and a second hydroprocessing step in which the effluent resulting from the first hydroprocessing step is transferred directly and in which said effluent moves into at least a second fixed-bed catalytic area including at least one hydroprocessing catalyst.