Fluid sprinkling – spraying – and diffusing – Unitary plural outlet means – Having interior filter or guide
Patent
1987-12-23
1990-07-03
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Unitary plural outlet means
Having interior filter or guide
239559, B05B 114
Patent
active
049384228
ABSTRACT:
An inlet distributor for a gas solids contracting vessel uses a two direction distributor to prevent bed surface disturbances at high inlet velocities and high particle loadings. The distributor uses a series of partitions to peel off portions of the downward gas flow and redirect them radially outward. Each outwardly directed gas flow component passes through a series of perforations to effect any necessary circumferential redistribution before entering the space above the particle bed. By subdividing the gas flow into a number of radially directed flow portions and circumferentially redistributing these flow portions, cross-currents and eddy currents on the catalyst bed surface are minimized or avoided so that disturbances at the bed surface are eliminated. This distributor is particularly effective in vessels having particles loaded to within a short distance of bed inlets and where elbows or other upstream flow devices introduce nonuniformities into the gas flow to a particle bed. The distributor has a simple arrangement and can be used without adding significant pressure drop to the system.
REFERENCES:
patent: 2321431 (1943-06-01), Somes
patent: 2359690 (1944-10-01), Tarbox
patent: 2874001 (1959-02-01), Webb
patent: 2925331 (1960-02-01), Kazmierczak et al.
patent: 3229913 (1966-01-01), Waldrum
patent: 3479146 (1969-11-01), Hochman et al.
patent: 3598541 (1971-08-01), Hennemuth
patent: 3598542 (1971-08-01), Carson et al.
Grant William
Kashnikow Andres
McBride Thomas K.
Tolomei John G.
UOP
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