Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element responds proportionally to a variable signal...
Patent
1987-05-08
1988-12-20
Lacey, David L.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Control element responds proportionally to a variable signal...
48 94, 196110, 196127, 196132, 196135, 422197, C10G 920
Patent
active
047924365
ABSTRACT:
A hydrocarbon converter furnace has an upper convection heating zone and a lower radiant heating zone, and tubing extends in those zones to convey a fluid hydrocarbon feed and steam in sequence through the convection and radiant heating zones. The tubing includes a feed section and branches therefrom in the radiant section of the furnace, the feed section and branches arranged so that the hydrocarbon and steam flow from the feed section to said branches; also provided is valving for controlling the relative rates of flow in the branches to reduce differential coking in the branches.
REFERENCES:
patent: 3117620 (1964-01-01), Fuller
patent: 3268435 (1966-08-01), Sellin
patent: 3271472 (1966-09-01), Ogle et al.
patent: 3671198 (1972-06-01), Wallace
patent: 3952776 (1976-04-01), Eversole et al.
patent: 4194966 (1980-03-01), Edison et al.
Haefliger William W.
Kinetics Technology International
Lacey David L.
Woodard Joye L.
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