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. The second hydrocarbon stream may be a diesel stream from the hydrotreating unit. The diesel stream may be a diesel and heavier stream from a bottom of a hydrotreating fractionation column.
Claims20
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 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;
- and
- a hydrocracking reactor in downstream communication with said 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.
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 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 the liquid hydrotreating effluent stream to provide a diesel stream at a bottom outlet;
- and
- a hydrocracking reactor in downstream communication with said separator and said bottom outlet of 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.
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 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 recycle compressor in communication with said hydrotreating separator for compressing the vaporous hydrotreating effluent stream to provide a compressed hydrogen stream;
- a hydrotreating fractionation column in communication with said separator for fractionating the liquid hydrotreating effluent stream to provide a diesel stream at a diesel outlet;
- and
- a hydrocracking reactor in downstream communication with said separator and said hydrotreating fractionation column and said recycle compressor for hydrocracking the diesel stream in the presence of a hydrocracking hydrogen stream and a hydrocracking catalyst to provide a hydrocracking effluent stream.
Dependencies are inferred from the claim text.