Patent ID: 9657237
Date: 2017-05-23
CPC Classifications: B01J,C10G

Claim:
1. An apparatus for producing diesel from a hydrocarbon stream comprising: a hydrotreating reactor for hydrotreating a hydrocarbon stream in the presence of a hydrotreating hydrogen stream and hydrotreating catalyst to provide a hydrotreating effluent stream; a hydrotreating separator in communication with said hydrotreating reactor for separating the hydrotreating effluent stream into a vaporous hydrotreating effluent stream comprising hydrogen and a liquid hydrotreating effluent stream; a hydrotreating fractionation column in communication with said separator for fractionating liquid hydrotreating effluent to provide a diesel stream at a diesel outlet; a hydrocracking reactor in downstream communication with said hydrotreating separator and said hydrotreating fractionation column for hydrocracking the diesel stream in the presence of a hydrocracking hydrogen stream and hydrocracking catalyst to provide a hydrocracking effluent stream; and a hydrocracking separator, which is separate from said hydrotreating separator, in communication with said hydrocracking reactor for separating the hydrocracking effluent stream into a vaporous hydrocracking effluent stream comprising hydrogen and a liquid hydrocracking effluent stream and a hydrotreating effluent line being in communication with said hydrocracking separator for mixing the vaporous hydrocracking effluent stream comprising hydrogen with the hydrotreating effluent stream.