Apparatus for hydrocracking a hydrocarbon feedstock
AssigneeUop LLC
InventorsRichard K. Hoehn, Vasant P. Thakkar, Vedula K. Murty, Douglas W. Kocher-Cowan, Jennifer L. Anderson
Life of this patent
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Abstract
A hydrocracking process and apparatus wherein the feedstock is hydrotreated and the liquid and gaseous effluent from the hydrotreater is directly introduced into the upper end of a hydrocracking vessel which provides a liquid seal to prevent the passage of the gaseous stream containing hydrogen sulfide and ammonia from the hydrotreater to enter the hydrocracking zone containing hydrocracking catalyst. Fresh hydrogen is then introduced into the hydrocracking zone.
Claims19
An apparatus for hydrocracking a hydrocarbon feedstock comprising:
- a) a generally vertical vessel having an upper end and a lower end;
- b) a generally vertical baffle attached to the upper end of the vessel, said baffle defining a conduit with a free lower edge to allow a gaseous phase to pass around said free lower edge and into said conduit;
- c) a tangential inlet to a space between the baffle and an outer wall of the vessel at the upper end of the vessel;
- d) a generally horizontal deck positioned in the upper end of the vessel and below the vertical baffle having at least one perforation;
- and
- e) a generally vertical weir associated with said at least one perforation in the horizontal deck.
An apparatus for hydrocracking a hydrocarbon feedstock comprising:
- a) a generally vertical vessel having an upper end and a lower end;
- b) a generally vertical baffle attached to the upper end of the vessel and defining an annular space and a conduit with a free lower edge to allow a gaseous phase to pass around said free lower edge and into said conduit;
- c) an inlet in the annular space in the upper end of the vessel;
- d) a generally horizontal deck positioned in the upper end of the vessel and below the vertical baffle having at least one perforation;
- e) a generally vertical weir associated with each of said at least one perforation in the horizontal deck;
- and
- f) an outlet for removing a stream from the upper end of the vessel.
An apparatus for hydrocracking a hydrocarbon feedstock comprising:
- a) a generally vertical vessel having an upper end and a lower end;
- b) a generally vertical baffle attached to the upper end of the vessel, said baffle defining a conduit with a free lower edge to allow a gaseous phase to pass around said free lower edge and into said conduit;
- c) a first inlet in the upper end of the vessel;
- d) a generally horizontal deck positioned in the upper end of the vessel and below the vertical baffle having at least one perforation;
- e) a generally vertical weir encircling said at least one perforation in the horizontal deck;
- f) a second inlet to a mixing zone below the deck;
- and
- g) a distributor below the second inlet and the mixing zone.
Dependencies are inferred from the claim text.