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US 6,669,915 B1Granted
Gas-liquid inlet nozzle for cocurrent downflow reactors
AssigneeExxonMobil Research and Engineering Company
InventorsSherri L. Boyd, Gregory P. Muldowney
Life of this patent
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Abstract
A fluid inlet nozzle distributor for a downflow fixed bed reactor which is a cylindrical housing having inlet and outlet openings and a swirl chamber disposed within said housing, whereby said swirl chamber imparts rotational motion to a fluid exiting said inlet nozzle.
Claims5
A downflow reactor having a liquid inlet comprising:
- horizontal reactant fluid inlet piping terminating in a 90 degree elbow having a portion of piping which is directed vertically downward and which is connected to,
- a cylindrical housing mounted below said ninety degree elbow and located above a distributor tray in the downflow reactor, which distributor tray is located above a catalyst bed,
- the cylindrical housing:
- (i) being of larger diameter than the downwardly directed piping portion
- (ii) having an liquid inlet opening and a downwardly directed liquid outlet opening,
- (iii) having a swirl chamber disposed within said housing comprising a plurality of swirl vanes or swirl ducts to imparts rotational liquid motion to liquid exiting said inlet nozzle thereby minimizing flow asymmetries and breaking fluid momentum in the vertically downward direction,
- (iv) having an obstruction member in the form of a splash plate mounted within the cylindrical housing and on the swirl vanes or swirl ducts, substantially centered in the swirl chamber that occupies the center of the rotational liquid motion, and
- (v) extending below the outlet opening to confine the liquid exiting the swirl chamber to a conic volume projecting downward below the outlet opening.
5 more elements
Dependencies are inferred from the claim text.