C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/129
C10G 47/28 (2006.01) B01J 8/22 (2006.01) B01J 8/24 (2006.01)
Patent
CA 1229059
ABSTRACT OF THE DISCLOSURE An improved flow distribution system for a cata- lytic reactor plenum chamber for a gas-liquid-solids ebullated bed reactor. The flow distribution system includes a downwardly directed conduit and a flow distri- butor device such as a baffled nozzle attached to the inner end of the conduit, said nozzle containing at least two substantially parallel baffle plates usually oriented substantially normal to the nozzle inlet flow direction for providing initially downward flow and good mixing and radial flow dispersion of gas-liquid materials in the lower portion of the plenum. The initially downward flow is then deflected generally upwardly by the curved lower head of the reactor plenum chamber and passes uniformly upwardly through a flow distribution grid into the ebullated catalyst bed. A sparger can be provided in the plenum above the flow distributor device for feeding additional gas-liquid mixture into the reactor. Alternatively, the flow distribution system can include a oonical-shaped flow deflector device having its base rigidly attached to the plenum lower wall and having its apex oriented toward and substantially aligned with the centerline of the inner end of the conduit. The flow distribution system provides substantially uniform flow dispersion of the gas-liquid mixture into the ebullated bed, and minimizes stagnant zones in the plenum and thereby provides fouling-free operation of the reactor.
436283
Eccles Richard M.
Li Allen S.
Ruef Lloyd M.
Gowling Lafleur Henderson Llp
Hri Inc.
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