Process and apparatus for producing diesel from a hydrocarbon stream
AssigneeUop LLC
InventorsPaul R. Zimmerman, Peter Kokayeff
Life of this patent
Estimating the term…
Abstract
A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a second hydrocarbon stream in a hydrocracking unit. The hydrocracking unit and the hydrotreating unit may share the same recycle gas compressor. A make-up hydrogen stream may also be compressed in the recycle gas compressor. A hydrocracking separator separates recycle gas and hydrocarbons from the hydrocracking unit to be processed with effluent from the hydrotreating unit.
Claims20
A process for producing diesel from a hydrocarbon stream comprising:
- hydrotreating a first hydrocarbon stream in the presence of a hydrotreating hydrogen stream and hydrotreating catalyst to provide a hydrotreating effluent stream;
- hydrocracking a second hydrocarbon stream in the presence of a 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;
- and
- mixing said vaporous hydrocracking effluent stream with said hydrotreating effluent stream.
A process for producing diesel from a hydrocarbon stream comprising:
- hydrotreating a first hydrocarbon stream in the presence of a hydrotreating hydrogen stream and hydrotreating catalyst to provide a hydrotreating effluent stream;
- separating the hydrotreating effluent stream into a vaporous hydrotreating effluent stream comprising hydrogen and a liquid hydrotreating effluent stream;
- fractionating a stream comprising liquid hydrotreating effluent to provide a diesel stream;
- hydrocracking said diesel stream in the presence of a 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;
- and
- mixing said vaporous hydrocracking effluent stream with said hydrotreating effluent stream.
A process for producing diesel from a hydrocarbon stream comprising:
- hydrotreating a first hydrocarbon stream in the presence of a hydrotreating hydrogen stream and hydrotreating catalyst to provide a hydrotreating effluent stream;
- hydrocracking a second hydrocarbon stream in the presence of a 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;
- mixing said vaporous hydrocracking effluent stream with said hydrotreating effluent stream;
- and
- fractionating a stream comprising liquid hydrocracking effluent to provide a low sulfur diesel stream.
Dependencies are inferred from the claim text.