Patent ID: 7781629
Filing Date: 2010-08-24
Classification: C10G,Y02P

Abstract:
1. A method of hydrotreating a feed of a mixture comprising an oil of vegetable or animal origin (1 to 99% by volume) and of a petroleum cut (99 to 1% by volume) so as to obtain a fuel base at least containing less than 50 mg/kg sulfur, comprising: a) a first hydrotreatment stage of a petroleum cut in a fixed-bed section HDS1 with at least one catalyst at a temperature of 180° C. to 450° C., a total pressure of 0.5 to 30 MPa, an hourly space velocity of 0.1 to 20 h b) a quench introduction of a stream of oils of vegetable or animal origin so as to form a resultant mixture with at least part of the effluent from HDS1, c) a second hydrotreatment stage of the resultant mixture in a fixed-bed section HDT2 with at least one catalyst at a temperature of 180° C. to 360° C., a total pressure of 0.5 to 20 MPa, an hourly space velocity of 0.1 to 20 h