Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Fluidized bed
Patent
1990-11-30
1992-08-18
Kummert, Lynn M.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Fluidized bed
208153, 208157, 239432, 239520, 239524, 422214, F27B 1508, B01J 818
Patent
active
051397480
ABSTRACT:
Hydrocarbon feedstock is dispersed in an FCC riser by directing jets of atomized feed droplets into a flowing stream of catalyst particles in a direction substantially perpendicular to the axis of the riser. By directing the feed into the riser in a substantially perpendicular direction feed is more quickly dispersed across the entire cross section of the riser. By quickly dispersing feed the mixture of hydrocarbons and catalyst particles is completely mixed after traveling only a short distance along the riser from the point of feed introduction. Reducing this contact zone length improves the quality of riser products by eliminating variations in the contact time between the feed and catalyst. In addition to the short contact zone length this invention also combines the desirable features of catalyst pre-acceleration and feed atomization. The apparatus used for practicing this invention may also include a central strike surface in the riser to prevent erosion of the riser wall from the radially directed feed jets.
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Haun Edward C.
Lomas David A.
Kummert Lynn M.
McBride Thomas K.
Santiago Amalia L.
Tolomei John G.
UOP
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