Patent ID: 8431013
Filing Date: 2013-04-30
Classification: C01B,C10G

Abstract:
1. A process for transforming at least one crude oil P, comprising; a preliminary treatment of P, comprising fractionating P by distillation (PRE-DIST) and/or deasphalting (SDA) to produce asphalt AS and at least one first non-asphaltenie stream E1 boiling essentially above 340° C.; partially oxidizing (POX) the asphalt AS supplemented with 4% to 40% by weight of desalted oil P to produce a first synthesis gas SG1 with a H steam reforming a cut G comprising hydrocarbons containing less than 5 carbon atoms, said hydrocarbons comprising C1-C4 fractions recycled from a Fischer-Tropsch conversion step and a hydrocracking step, wherein at least 50% by weight of said hydrocarbons are external to the crude oil P, to produce a second synthesis gas SG2 with a H mixing at least a portion of SG1 and at least a portion of SG2 in a proportion which can produce a synthesis gas SG with a H Fischer-Tropsch converting SG, generally purified by preliminary purification (PUR-FT), to obtain principally liquid fractions and paraffin waxes; hydrocracking (HDK) at least the major portion of said paraffin waxes to produce at least one cut comprising liquid hydrocarbons boiling below 340° C., which hydrocracking is carried out on at least the majority of the paraffin waxes mixed with E1; and producing at least one pre-refined non-asphaltenic oil Pa from at least a portion of the non-asphaltenic cuts derived from the preliminary treatment of P, optionally after catalytic hydrogenating treatment(s), and from at least a portion of the hydrocracking effluents.