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US 8,999,256 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
Estimating the term…
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.
Claims20
An apparatus for producing diesel from a hydrocarbon stream comprising:
- hydrotreating reactor;
- a hot separator for separating a hydrotreating effluent stream into a vaporous hot hydrotreating effluent stream in a hot separator overhead line and a liquid hot hydrotreating effluent stream in a hot separator bottoms line;
- a cold separator in direct communication with the hot separator overhead line for separating said vaporous hot hydrotreating effluent stream into a vaporous cold hydrotreating effluent stream and a liquid cold hydrotreating effluent stream in a cold separator bottoms line;
- a fractionation column in communication with said cold separator bottoms line;
- and
- a hydrocracking reactor in communication with said hot separator bottoms line for hydrocracking said liquid hot hydrotreating effluent stream.
3 more elements
An apparatus for producing diesel from a hydrocarbon stream comprising:
- hydrotreating reactor;
- a hot separator for separating a hydrotreating effluent stream into a vaporous hot hydrotreating effluent stream in a hot separator overhead line and a liquid hot hydrotreating effluent stream in a hot separator bottoms line;
- a cold separator in direct communication with the hot separator overhead line for separating said vaporous hot hydrotreating effluent stream into a vaporous cold hydrotreating effluent stream and a liquid cold hydrotreating effluent stream in a cold separator bottoms line;
- a fractionation column in communication with said cold separator bottoms line;
- a hydrocracking reactor in communication with said hot separator bottoms line for hydrocracking said liquid hot hydrotreating effluent stream;
- and
- a saturation reactor in communication with said fractionation column.
4 more elements
An apparatus for producing diesel from a hydrocarbon stream comprising:
- hydrotreating reactor;
- a hot separator for separating a hydrotreating effluent stream into a vaporous hot hydrotreating effluent stream in a hot separator overhead line and a liquid hot hydrotreating effluent stream in a hot separator bottoms line;
- a cold separator in direct communication with the hot separator overhead line for separating said vaporous hot hydrotreating effluent stream into a vaporous cold hydrotreating effluent stream and a liquid cold hydrotreating effluent stream in a cold separator bottoms line;
- a fractionation column in communication with said cold separator bottoms line and a diesel line in communication with a side outlet of said fractionation column;
- and
- a hydrocracking reactor in communication with said hot separator bottoms line for hydrocracking said liquid hot hydrotreating effluent stream.
3 more elements
Dependencies are inferred from the claim text.