HYDROCARBON CONVERSION PROCESS

摘要

Methods of hydroprocessing hydrocarbon streams are provided that employ substantially liquid-phase hydroprocessing conditions. In one aspect, the method includes directing a hydrocarbonaceous feed stock (12) to a first substantially liquid-phase hydroprocessing zone (20) wherein an effluent (28) from the first substantially liquid-phase hydroprocessing zone (20) is directed to a second substantially liquid-phase hydroprocessing zone (34) generally undiluted with other hydrocarbon streams. In another aspect, the method recycles (14) a liquid portion of a liquid hydrocarbonaceous effluent (50) from the second substantially liquid-phase hydroprocessing zone (34), which preferably includes an amount of hydrogen dissolved therein, to the hydrocarbonaceous feed stock (12) so that the feed (18) to the first substantially liquid-phase hydroprocessing zone (20) has a relatively larger concentration of dissolved hydrogen relative to the hydrocarbonaceous feed stock (12).