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US 2017/0283715 A1Published application
Process for recovering hydrogen and liquefied petroleum gas from gaseous streams
AssigneeUop LLC
InventorsKiran Ladkat, Neeraj Tiwari
Life of this patent
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Abstract
A process for recovery hydrogen and LPG from a gaseous separated hydroprocessed stream and a stripper gaseous stream and/or a fractionator gaseous stream by increasing the pressure of the stripper gaseous stream and/or the fractionator gaseous stream. Both streams or all three streams can be subjected to sponge absorption and hydrogen recovery in series.
Claims20
A process for recovering hydrogen comprising:
- hydroprocessing a hydrocarbon feed stream in a hydroprocessing reactor to provide a hydroprocessed effluent stream;
- separating said hydroprocessed effluent stream in a separation section comprising a separator to provide a liquid separated hydroprocessed stream and a gaseous separated hydroprocessed stream;
- stripping said liquid separated hydroprocessed stream to provide a stripper gaseous stream;
- and
- absorbing C3+ hydrocarbons from said gaseous separated hydroprocessed stream and said stripper gaseous stream together by contact with a sponge oil.
2 more elements
A process for recovering hydrogen comprising:
- hydroprocessing a hydrocarbon feed stream in a hydroprocessing reactor to provide a hydroprocessed effluent stream;
- separating said hydroprocessed effluent stream in a separation section comprising a separator to provide a liquid separated hydroprocessed stream and a gaseous separated hydroprocessed stream;
- stripping said liquid separated hydroprocessed stream;
- condensing a stripper overhead stream;
- separating a condensed stripper overhead stream to provide a stripper gaseous stream a stripper liquid overhead stream;
- fractionating said stripper liquid overhead stream to provide a fractionator gaseous stream;
- and
- absorbing C3+ hydrocarbons from said gaseous separated hydroprocessed stream and said fractionator gaseous stream together by contact with a sponge oil.
5 more elements
A process for recovering LPG comprising:
- hydroprocessing a hydrocarbon feed stream in a hydroprocessing reactor to provide a hydroprocessed effluent stream;
- separating said hydroprocessed effluent stream in a separation section comprising a separator to provide a liquid separated hydroprocessed stream and a gaseous separated hydroprocessed stream;
- stripping said liquid separated hydroprocessed stream;
- condensing a stripper overhead stream;
- separating a condensed stripper overhead stream to provide a stripper gaseous stream a stripper liquid overhead stream;
- fractionating said stripper liquid overhead stream to provide a fractionator gaseous stream;
- and
- absorbing C3+ hydrocarbons from said gaseous separated hydroprocessed stream, said stripper gaseous stream and said fractionator gaseous stream together.
5 more elements
Dependencies are inferred from the claim text.