METHOD FOR CONVERTING CHARGES FROM RENEWABLE SOURCES INVOLVING COPROCESSING WITH A PETROLEUM FEEDSTOCK, USING A MOLYBDENUM- AND NICKEL-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) 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 at least one element from group VIB and at least one element group VIII, whereby said elements take the form of sulphide and the atomic ratio of the metal (or metals) from group VIII in relation to the metal (or metals) from group VIB is strictly greater than 0 and less than 0.095; and (b) 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.