Patent ID: 7935314

Claim:
An apparatus for contacting regenerated catalyst with a hydrocarbon feed, said apparatus comprising: a riser in which said hydrocarbon feed is contacted with catalyst particles to catalytically crack hydrocarbons in said hydrocarbon feed to produce a gaseous product of lighter hydrocarbons and carbonized catalyst; a feed distributor for distributing hydrocarbon feed to said riser; a reactor vessel in communication with said riser, said reactor vessel for separating the carbonized catalyst and the gaseous product; a regenerator vessel in communication with said reactor vessel, said regenerator vessel for combusting carbon from the carbonized catalyst with an oxygen-containing gas to provide regenerated catalyst; a regenerated catalyst conduit in communication with said regenerator; said regenerated catalyst conduit intersecting said riser at a regenerated catalyst conduit intersection for transporting regenerated catalyst to said riser; a regenerated catalyst baffle in said riser below said feed distributor and proximate to said regenerated catalyst conduit intersection for mixing the regenerated catalyst.