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US 10,518,235 B2Granted
Methods and apparatus for fluid contacting in a downflow vessel
AssigneeUop LLC
InventorsZhanping Xu, Christopher Naunheimer, Pengfei Chen
Life of this patent
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Abstract
A contacting device and method are presented for the collection, contacting, and distribution of fluids between particulate beds of a downflow vessel, which may operate in co-current flow. By one approach, the contacting device includes a liquid collection tray, a mixing channel in fluid communication with the liquid collection tray, and a liquid distribution zone.
Claims20
A system for fluid contacting in a downflow vessel, comprising:
- a liquid collection tray positioned in a contacting space between two adjacent catalyst beds in a downflow reactor for collecting fluid traveling downward from an upper bed system;
- a mixing device having an inlet in communication with the liquid collection tray for contacting fluid;
- a top plate of the mixing device having an upper surface spaced from a bottom portion of the upper bed system and configured to direct fluid from the upper bed system to at least one of the liquid collection tray and the mixing device;
- a quench fluid distributor positioned radially outwardly of the mixing device within walls of the downflow reactor having quench fluid outlets for distributing a quench fluid for contacting the fluid from the upper bed system;
- an elongate mixing channel of the mixing device;
- a liquid inlet of the mixing channel in communication with the liquid collection tray;
- and
- a vapor inlet of the mixing channel positioned downstream of the liquid inlet along the mixing channel for passing vapor into liquid flowing through the mixing channel.
5 more elements
A system for fluid contacting in a downflow reactor, comprising:
- a liquid collection tray positioned in a contacting space between two adjacent beds in a downflow reactor for collecting fluid traveling downward from an upper catalyst bed system;
- a mixing device having an inlet in communication with the liquid collection tray for contacting vapor and liquid;
- an annular mixing channel of the mixing device;
- a liquid inlet of the mixing channel in communication with the liquid collection tray;
- a vapor inlet of the mixing channel positioned downstream of the liquid inlet along the mixing channel for passing vapor into liquid flowing through the mixing channel;
- and
- a top plate of the mixing device above the mixing device and having an upper surface spaced from a bottom portion of the upper catalyst bed system and configured to direct fluid from the upper catalyst bed system to at least one of the liquid collection tray and the mixing device;
- a quench fluid distributor positioned radially outwardly of the mixing device within walls of the downflow reactor for distributing a quench fluid for contacting the fluid from the upper catalyst bed system.
5 more elements
A system for fluid contacting in a downflow vessel, comprising:
- a liquid collection tray positioned in a contacting space between two adjacent catalyst beds in a downflow reactor for collecting fluid traveling downward from an upper bed system;
- a mixing device having an inlet in communication with the liquid collection tray for contacting fluid;
- a top plate of the mixing device having an upper surface spaced from a bottom portion of the upper bed system and configured to direct fluid from the upper bed system to at least one of the liquid collection tray and the mixing device;
- and,
- a quench fluid distributor positioned radially outwardly of the mixing device within walls of the downflow reactor having quench fluid outlets for distributing a quench fluid for contacting the fluid from the upper bed system,
- wherein the top plate includes a weir around at least a portion of the top plate and having an opening for directing fluid on the top plate out of the opening and the outlets of the quench fluid distributor are configured to direct quench fluid toward the fluid flowing from the weir opening to contact the fluid.
3 more elements
Dependencies are inferred from the claim text.