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US 9,752,085 B2Granted
Process and apparatus for producing diesel from a hydrocarbon stream
AssigneeUop LLC
InventorsPaul R. Zimmerman, Peter Kokayeff, Michael R. Smith
Life of this patent
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Abstract
A process and apparatus are disclosed for hydrotreating a hydrocarbon feed in a hydrotreating unit and hydrocracking a liquid hydrotreating effluent stream in a hydrocracking unit. A hot separator separates the diesel in a liquid hot hydrotreating effluent stream that serves as feed to the hydrocracking unit. Low sulfur diesel product can be saturated to further upgrade its cetane rating.
Claims18
A process for producing diesel from a hydrocarbon stream comprising:
- hydrotreating a hydrocarbon feed stream over hydrotreating catalyst in the presence of hydrogen;
- separating a hydrotreating effluent stream into a vaporous hot hydrotreating effluent stream and a liquid hot hydrotreating effluent stream;
- obtaining a greater proportion of diesel from said hydrotreating effluent stream in said liquid hot hydrotreating effluent stream than in said vaporous hot hydrotreating effluent stream;
- separating said vaporous hot hydrotreating effluent stream into a vaporous cold hydrotreating effluent stream and a liquid cold hydrotreating effluent stream;
- fractionating said liquid cold hydrotreating effluent stream;
- and
- hydrocracking said liquid hot hydrotreating effluent stream.
4 more elements
A process for producing diesel from a hydrocarbon stream comprising:
- hydrotreating a hydrocarbon stream over hydrotreating catalyst in the presence of hydrogen;
- separating a hydrotreating effluent stream into a vaporous hot hydrotreating effluent stream and a liquid hot hydrotreating effluent stream;
- obtaining a greater proportion of diesel from said hydrotreating effluent stream in said liquid hot hydrotreating effluent stream than in said vaporous hot hydrotreating effluent stream;
- separating said vaporous hot hydrotreating effluent stream into a vaporous cold hydrotreating effluent stream and a liquid cold hydrotreating effluent stream;
- fractionating said liquid cold hydrotreating effluent stream to produce a diesel stream;
- hydrocracking said liquid hot hydrotreating effluent stream;
- and
- saturating said diesel stream.
5 more elements
A process for producing diesel from a hydrocarbon stream comprising:
- hydrotreating a hydrocarbon stream over hydrotreating catalyst in the presence of hydrogen;
- separating a hydrotreating effluent stream into a vaporous hot hydrotreating effluent stream and a liquid hot hydrotreating effluent stream;
- obtaining a greater proportion of diesel from said hydrotreating effluent stream in said liquid hot hydrotreating effluent stream than in said vaporous hot hydrotreating effluent stream;
- separating said vaporous hot hydrotreating effluent stream into a vaporous cold hydrotreating effluent stream and a liquid cold hydrotreating effluent stream;
- fractionating said liquid cold hydrotreating effluent stream;
- and
- hydrocracking said liquid hot hydrotreating effluent stream at a pressure within about 500 kPa of a pressure at which said hydrocarbon stream is hydrotreated.
4 more elements
Dependencies are inferred from the claim text.