Patent ID: 7670478

Claim:
An apparatus for injecting a hydrocarbon feed into a stream of catalyst particles in fluidized flow which comprises: a conduit section, said conduit section containing a stream of catalyst particles in fluidized flow; and at least one nozzle assembly within said conduit section, the nozzle assembly surrounding the periphery of said stream of catalyst particles in fluidized flow and containing at least two injection nozzles, wherein the at least two injection nozzles each produce different spray patterns, and each nozzle produces a substantially flat spray pattern that has an aspect ratio represented by thickness of the spray relative to the width of the spray taken orthogonally to the direction of flow of the spray of from 1:2 to 1:5, such that the totality of the feed is substantially uniformly dispersed across a cross-section of catalyst particles flowing through the conduit section.