Patent ID: 6447671
Filing Date: 2002-09-10
Classification: C10G

Abstract:
A process for converting a hydrocarbon feed containing at least one hydrocarbon fraction with a sulphur content of at least 0.1% by weight, an initial boiling point of at least 340Â° C. and an end point of at least 440Â° C., characterized in that it comprises the following steps:a) treating said hydrocarbon feed in a section for treatment carried out in the presence of hydrogen, said section comprising at least one three-phrase reactor, containing at least one hydroconversion catalyst wherein a mineral support is at least partially amorphous, in an ebullated bed, operating in liquid and gas upflow mode, said reactor comprising at least one means for withdrawing catalyst from said reactor located close to the reactor bottom and at least one means for supplying fresh catalyst to said reactor located close to the top of said reactor; b) sending at least one portion of the effluent from step a) to a section for eliminating catalyst particles containing in said effluent, said section comprising at least one means for eliminating said solid particles and at least one means for recovering an effluent containing fewer solid particles than the effluent from step a); c) sending at least a portion of the effluent from step b) to a section for treatment carried out in the presence of hydrogen, said section comprising at least one reactor containing at least one fixed bed hydrotreatment catalyst wherein the mineral support is at least partially amorphous, under conditions enabling an effluent with a reduced sulphur content and a high middle distillate content to be obtained.