Method for hydrodeoxygenation of oils or fats with limited conversion to decarboxylation with an heterogeneous catalyst

摘要

Hydrodeoxygenation of charges obtained from renewable sources with 10% conversion by decarboxylation/decarbonylation, by implementing a mass catalyst or support comprising an active phase constituted of at least one element of group VIB and at least one group VIII element, where the elements are as sulfide and the atomic ratio of metal of group VIII to metal of the group VIB is strictly greater than 0 to less than 0.095, the process is carried out e.g. at a temperature of 120-450[deg] C, and at a pressure of 1-10 MPa, is claimed. Process for hydrodeoxygenation of charges obtained from renewable sources with 10% conversion by decarboxylation/decarbonylation, implementing a mass catalyst or support comprising an active phase constituted of at least one element of group VIB and at least one group VIII element, where the elements are as sulfide and the atomic ratio of metal (or metals) of group VIII to metal (or metals) of the group VIB is strictly greater than 0 to less than 0.095, the process is carried out at a temperature of 120-450[deg] C, at a pressure of 1-10 MPa, at a space velocity of 0.1-10 h - 1and in the presence of a total amount of hydrogen mixed with charge such as the ratio of hydrogen/charge is 50-3000 Nm 3of hydrogen/m 3of charge, is claimed.