Patent ID: 8753501

Claim:
A process for producing diesel from a hydrocarbon stream comprising: compressing a make-up hydrogen stream in a compressor to provide a compressed make-up hydrogen stream; taking a hydrocracking hydrogen stream from the compressed make-up hydrogen stream; hydrocracking the hydrocarbon stream in the presence of the hydrocracking hydrogen stream and hydrocracking catalyst to provide a hydrocracking effluent stream; separating the hydrocracking effluent stream into a vaporous hydrocracking effluent stream comprising hydrogen and a liquid hydrocracking effluent stream; compressing the vaporous hydrocracking effluent stream to provide a compressed hydrogen stream; taking a hydrotreating hydrogen stream from the compressed hydrogen stream; fractionating the liquid hydrocracking effluent stream to provide a diesel stream; hydrotreating the diesel stream in the presence of a hydrotreating hydrogen stream and hydrotreating catalyst to provide a hydrotreating effluent stream; and separating the hydrotreating effluent stream into a vaporous hydrotreating effluent stream comprising hydrogen and a liquid hydrotreating effluent stream comprising at least 90 wt-% diesel and mixing the vaporous hydrotreating effluent stream comprising hydrogen with the hydrocracking effluent stream.