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US 8,999,150 B2Granted
Process for recovering hydroprocessed hydrocarbons with two strippers and common overhead recovery
AssigneeUop LLC
InventorsRichard K. Hoehn, David M. Bowman, Xin X. Zhu, Vedula K. Murty
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Abstract
A process is disclosed for recovering hydroprocessing effluent from a hydroprocessing unit utilizing a hot stripper and a cold stripper. The cold stripper and the hot stripper utilize a common overhead recovery apparatus.
Claims20
A hydroprocessing process comprising:
- hydroprocessing a hydrocarbon feed in a hydroprocessing reactor to provide hydroprocessing effluent stream;
- stripping a relatively cold hydroprocessing effluent stream with a stripping media in a cold stripper to provide a cold stripped stream and a cold vapor stream;
- feeding the cold stripped stream to a product fractionation column;
- stripping a relatively hot hydroprocessing effluent stream with stripping media in a hot stripper to provide a hot stripped stream and a hot vapor stream;
- feeding the hot stripped stream to said product fractionation column;
- preventing material from the hot stripper from mixing with material from the cold stripper by means of a barrier;
- and
- condensing said cold vapor stream and said hot vapor stream in a condenser to provide a condensed overhead stream.
5 more elements
A hydroprocessing product recovery process for recovering product from a cold hydroprocessing effluent stream and a hot hydroprocessing effluent stream comprising:
- stripping a relatively cold hydroprocessing effluent stream with a stripping media in a cold stripper to provide a cold stripped stream and a cold vapor stream;
- stripping a relatively hot hydroprocessing effluent stream with stripping media in a hot stripper to provide a hot stripped stream and a hot vapor stream;
- preventing material from the hot stripper from mixing with material from the cold stripper by means of a barrier;
- condensing said cold vapor stream and said hot vapor stream in a condenser to provide a condensed overhead stream;
- and
- fractionating the cold stripped stream and the hot stripped stream to provide product streams.
3 more elements
A hydroprocessing process comprising:
- hydroprocessing a hydrocarbon feed in a hydroprocessing reactor to provide hydroprocessing effluent stream;
- stripping a relatively cold hydroprocessing effluent stream with a stripping media in a cold stripper to provide a cold stripped stream and a cold vapor stream;
- stripping a relatively hot hydroprocessing effluent stream with stripping media in a hot stripper to provide a hot stripped stream and a hot vapor stream;
- preventing material from the hot stripper from mixing with material from the cold stripper by means of a barrier;
- and
- separating a portion of said cold vapor stream in an overhead line from an overhead section of said cold stripper and said hot vapor stream in an overhead line from an overhead section of said hot stripper into an off-gas stream and a receiver bottoms stream in a common overhead receiver.
3 more elements
Dependencies are inferred from the claim text.