Stripping apparatus and process
AssigneeUop LLC
InventorBrian W. Hedrick
Life of this patent
Estimating the term…
Abstract
An FCC apparatus uses a cantilevered support for supporting baffles in a stripping vessel. Only one end of the support is fastened to a wall of a contacting conduit or a wall of the stripping vessel and the other end is spaced apart from the near wall of the contacting conduit or the stripping vessel. The arrangement provides for easier maintenance and accommodates differential thermal expansion.
Claims20
An apparatus for the stripping of hydrocarbons from particulate material, said apparatus comprising:
- a stripping vessel;
- at least one port defined by the stripping vessel for receiving particles that contain hydrocarbons and for withdrawing stripping fluid and stripped hydrocarbons from the stripping vessel;
- a plurality of stripping baffles spaced apart vertically over at least a portion of the stripping vessel, one of said plurality of baffles including at least three downcomers radially extending from a vertical center of said stripping vessel;
- a plurality of openings distributed over at least a portion of the surface of said one of said stripping baffles;
- at least one fluid inlet for passing a stripping fluid to an underside of said one of said stripping baffles for stripping hydrocarbons from the particulate material;
- and
- at least one particle outlet for recovering stripped particles from the stripping baffles.
An apparatus for the stripping of hydrocarbons from particulate material, said apparatus comprising:
- a stripping vessel;
- a conduit extending through said stripping vessel;
- at least one port defined by the stripping vessel for receiving particles that contain hydrocarbons and for withdrawing stripping fluid and stripped hydrocarbons from the stripping vessel;
- a plurality of stripping baffles spaced apart vertically over at least a portion of the stripping vessel, one of said plurality of baffles including at least three downcomers radially extending from said conduit;
- a plurality of openings distributed over at least a portion of the surface of said one of said stripping baffles;
- at least one fluid inlet for passing a stripping fluid to an underside of said one of said stripping baffles for stripping hydrocarbons from the particulate material;
- and
- at least one particle outlet for recovering stripped particles from the stripping baffles.
A process for stripping hydrocarbons from particulate material, said process comprising:
- feeding particles containing hydrocarbons to a vessel including a plurality of vertically spaced-apart, stripping baffles, one of said plurality of baffles including a downcomer radially extending from a center of said stripping vessel, said downcomer constrained by opposed, nonparallel sides, and a plurality of openings distributed over at least a section of the surface of said one of said stripping baffles;
- passing a stripping fluid to an underside of said one of said stripping baffles for stripping hydrocarbons from the particulate material;
- recovering stripping fluid and stripped hydrocarbons from said vessel;
- and
- collecting stripped catalyst from said vessel.
Dependencies are inferred from the claim text.