FIELD: chemistry.
SUBSTANCE: invention discloses a method for producing diesel fuel from a hydrocarbon stream, comprising: hydrotreating the main hydrocarbon stream and a co-feed hydrocarbon feedstock containing diesel fuel in the presence of a hydrogen stream and a pre-purification catalyst to produce a pre-purified effluent stream; hydrocracking a pre-purified effluent stream in the presence of a hydrocracking catalyst and hydrogen to produce an effluent hydrocracking stream; fractionating, at least, a portion of the hydrocracking effluent to produce a diesel fuel stream; and hydrotreating the diesel fuel stream in the presence of the hydrogen stream for hydrotreating and a hydrotreating catalyst to produce an effluent stream.
EFFECT: producing diesel fuel with low sulfur and ammonia content.
10 cl, 2 dwg
