Process and apparatus for distributing hydrocarbon feed to a catalyst stream

摘要

A process and apparatus described is for distributing hydrocarbon feed to catalyst in a riser. Hydrocarbon feed is delivered to a plenum in the riser. Nozzles from the plenum inject feed into the riser to contact the catalyst. Streams of regenerated catalyst and carbonized catalyst may be passed to the riser and mixed around an insert in a lower section of a riser. The plenum may be located in the riser.

主权项

1. An apparatus for fluid catalysis comprising:
a riser; a plenum located in an radial center of said riser; and a nozzle in said plenum with an outlet end directed away from said radial center for injecting hydrocarbon feed, wherein said nozzle is disposed tangentially with respect to an outer wall of said plenum.