Quench box for a multi-bed, mixed-phase cocurrent downflow fixed-bed reactor
OwnerTai-Sheng Chouinventor
Life of this patent
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Abstract
A compact quench box design for a multi-bed, mixed-phase cocurrent downflow fixed-bed reactor has a quench pipe manifold and nozzle assembly, a collection tray, a mixing chamber, and a single final distributor tray. The quench pipe manifold and nozzle assembly is an annular ring pipe having nozzles arising therefrom. The mixing chamber is an annular compartment depending from the collection tray above having a partition pan, forming a partition weir at its inside diameter for liquid to flow, and a bottom section pan, which forms a vapor outlet weir at its inside diameter for vapor flow onto the final distributor tray below. This design reduces the number of manway required for the quench box.
Claims15
A quench box for a multi-bed, mixed-phase cocurrent downflow fixed-bed reactor, comprising:
- a quench pipe manifold and nozzle assembly;
- a collection tray having a manway and located below the quench pipe manifold and nozzle assembly for receiving fluid from a catalyst bed above the collection tray;
- a mixing chamber located below the collection tray and in fluid communication with the collection tray to receive two-phase fluid stream flowing therefrom;
- and
- a final distributor tray for distributing fluid to a catalyst bed below the distributor tray, said distributor tray having a manway.
A quench box for a multi-bed, mixed-phase cocurrent downflow fixed-bed reactor, comprising:
- a quench pipe manifold and nozzle assembly having an open center portion;
- a collection tray having a central manway and located below the quench pipe manifold and nozzle assembly for receiving fluid from a catalyst bed above the collection tray;
- a mixing chamber having an open central portion and located below the collection tray and in fluid communication with the collection tray to receive two-phase fluid flowing therefrom, said mixing chamber having an open central portion substantially aligned with the central manway in the collection tray and large enough for a person to pass therethrough;
- and
- a final distributor tray for distributing fluid to a catalyst bed below the distributor tray, said distributor tray having a central manway.
Dependencies are inferred from the claim text.