Hydroprocessing process

A process for hydrodesulfurization a hydrocarbon feedstock, comprising the steps of:

• providing a hydrocarbon feed;
• providing a first hydrogen-containing gas;
• feeding said hydrocarbon feed first hydrogen-containing gas cocurrently to a first hydrodesulfurization zone so as to provide a first hydrocarbon product;
• providing a plurality of additional hydrodesulfurization zones including a final zone and an upstream zone;
• feeding said first hydrocarbon product cocurrently with a recycled gas to said upstream zone so as to provide an intermediate product;
• feeding said intermediate product to a liquid-gas separator so as to provide a separated gas phase containing hydrogen sulfide, hydrogen and volatile hydrocarbon fractions and liquid intermediate hydrocarbon product;
• feeding said intermediate hydrocarbon product cocurrently with a second hydrogen-containing gas to said final zone so as to provide a final hydrocarbon product and a hydrogen-containing gas phase;
• and
• feeding said hydrogen containing gas phase to said upstream zone as said recycled gas wherein said first hydrodesulfurization zone also produce a gas phase containing hydrogen sulfide, hydrogen and volatile hydrocarbon fractions, and further comprising feeding said gas phase and said separated gas phase to low temperature separator for separating a liquid phase containing said volatile hydrocarbon fractions and a gas phase containing said hydrogen and hydrogen, and combining said volatile hydrocarbon fractions with said hydrocarbon feed.