Process for hydrotreating a coker kerosene stream to provide a feed stream for a paraffin separation zone
AssigneeUop LLC
InventorsSoumendra Mohan Banerjee, Srinivasa Gopalan Varadarajan
Life of this patent
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Abstract
A process for hydrotreating a coker kerosene feed stream to produce a feed stream for a paraffin separation zone. An effluent stream from a hydrotreating zone is passed to an aromatic separation zone to remove aromatics from the effluent stream form the hydrotreating zone and provide an aromatic lean stream. The aromatic lean stream may be passed to the paraffin separation zone to separate normal paraffins from non-normal paraffins. The separated aromatics can be passed to an aromatic processing zone to, for example, to produce xylene or other desirable aromatic hydrocarbons.
Claims20
A process for the producing a feed for a paraffin separation zone from a coker kerosene feed stream, the process comprising:
- hydrotreating a coker kerosene feed stream to produce a treated coker kerosene stream;
- separating aromatics from the treated coker kerosene stream to provide an aromatics rich stream and an aromatics lean stream;
- and,
- passing the aromatics lean stream to a paraffin separation zone.
A process for producing a feed for a paraffin separation zone from a feed stream, the process comprising:
- reducing a nitrogen and a sulfur content of a coker kerosene feed stream in a hydrotreating zone to produce a treated coker kerosene stream;
- extracting aromatics from the treated coker kerosene stream in an aromatic extraction zone to provide an aromatics lean stream;
- and,
- separating normal paraffins from the aromatics lean stream in a paraffin separation zone to provide a normal paraffin rich stream.
A process for reducing a feed stream to a paraffin separation zone, the process comprising:
- hydrotreating a coker kerosene feed stream to reduce a nitrogen content and a sulfur content of the coker kerosene feed to provide a treated coker kerosene stream;
- separating aromatics from the treated coker kerosene stream;
- and,
- separating normal paraffins from a portion of the treated coker stream,
- wherein the aromatics are separated from the treated coker kerosene stream before the normal paraffins are separated from the at least a portion of the treated coker kerosene stream.
Dependencies are inferred from the claim text.