Hydroprocessing reactor internals having reduced height
AssigneeUop LLC
InventorZhanping Xu
Life of this patent
Estimating the term…
Abstract
The hydroprocessing reactor internals (HRI) have reduced height compared to standard HRI designs. In this design, HRI height reduction is achieved by placing a mixing chamber above the collection tray. A ring quench distributor is located around the fluid collection tray between the mixing chamber and reactor shell to eliminate the vertical space occupied by the distributor. The hydroprocessing reactor quench zone internals comprise a collection tray, a mixing chamber, a ring distributor, a rough liquid distribution tray, and a vapor-liquid distribution tray. Fluid mixing occurs in the mixing chamber and above the rough liquid distribution tray.
Claims20
A device for the mixing and distribution of fluid between catalyst beds comprising:
- a collection tray comprising a central opening, the collection tray in fluid communication with a bottom of an upper catalyst bed;
- a mixing chamber above the collection tray, the mixing chamber positioned around the central opening, the mixing chamber having an outer wall located at a position inward of a reactor wall and a top plate attached to the outer wall, the outer wall having an opening to allow fluid to pass therethrough;
- a ring distributor comprising an injector for injecting quench fluid into a space above the collection tray between the reactor wall and the outer wall, wherein the ring distributor is positioned below the top plate of the mixing chamber;
- a rough liquid distribution tray comprising a central pan in fluid communication with the central opening of the collection tray;
- and
- a vapor-liquid distribution tray in fluid communication with the rough liquid distribution tray and a top of a lower catalyst bed.
A device for the mixing and distribution of fluid between catalyst beds comprising:
- a collection tray comprising a central opening, the collection tray in fluid communication with a bottom of an upper catalyst bed;
- a mixing chamber above the collection tray, the mixing chamber positioned around the central opening, the mixing chamber having an inner wall positioned around the central opening and an outer wall located at a position inward of a reactor wall and a top plate attached to the outer wall, the outer wall having an opening to allow fluid to pass therethrough;
- a downcomer positioned radially outwardly of the inner wall to allow liquid to pass therethrough;
- a ring distributor comprising an injector for injecting quench fluid into a space above the collection tray between the reactor wall and the outer wall,
- a rough liquid distribution tray comprising a central pan in fluid communication with the central opening of the collection tray;
- and
- a vapor-liquid distribution tray in fluid communication with the rough liquid distribution tray and a top of a lower catalyst bed.
A device for the mixing and distribution of fluid between catalyst beds comprising:
- a collection tray comprising a central opening, the collection tray in fluid communication with a bottom of an upper catalyst bed;
- a mixing chamber above the collection tray, the mixing chamber positioned around the central opening, the mixing chamber having an outer wall located at a position inward of a reactor wall and a top plate attached to the outer wall, the outer wall having an opening to allow fluid to pass therethrough;
- a vapor chimney for vapor flow positioned radially outwardly of the central opening;
- a ring distributor comprising an injector for injecting quench fluid into a space above the collection tray between the reactor wall and the outer wall;
- a rough liquid distribution tray comprising a central pan in fluid communication with the central opening of the collection tray;
- and
- a vapor-liquid distribution tray in fluid communication with the rough liquid distribution tray and a top of a lower catalyst bed.
Dependencies are inferred from the claim text.