Patent ID: 8324439

Claim:
A method of treating a feedstock from a renewable vegetable or animal source, comprising the following stages: a) subjecting the feedstock to hydrotreatment in the presence of a fixed-bed catalyst, said catalyst comprising a hydro-dehydrogenizing function and an amorphous support, at a temperature ranging between 200° C. and 450° C., at a pressure ranging between 1 MPa and 10 MPa, at an hourly space velocity ranging between 0.1 −1 and 10 h −1 and in the presence of a total amount of hydrogen mixed with the feedstock such that the hydrogen/feedstock ratio ranges between 150 and 750 Nm 3 hydrogen/m 3 feedstock to produce an effluent, b) separation, from the effluent from stage a), of the hydrogen, other gases and at least one hydrocarbon-containing base, c) hydroisomerization of at least part of said hydrocarbon-containing base from stage b) in the presence of a fixed-bed hydroisomerization selective catalyst, said catalyst comprising at least one group VIII metal and/or at least one VIB group metal and at least one monodimensional 10 MR zeolite molecular sieve, said stage c) being carried out at a temperature ranging between 150° C. and 500° C., at a pressure ranging between 1 MPa and 10 MPa, at an hourly space velocity ranging between 0.1 h −1 and 10 h −1 and in the presence of a total amount of hydrogen mixed with the feedstock such that the hydrogen/feedstock ratio ranges between 70 and 1000 Nm 3 /m 3 feedstock to produce an effluent, d) separation, from the effluent from stage c), of the hydrogen, other gases and at least one diesel fuel base.