A feed nozzle assembly located near the bottom of an FCC riser reactor
includes a plurality of feed nozzles, each feed nozzle including a
discharge end which is angled toward the center of the riser. The angled
discharged ends provide a combined discharge of hydrocarbon feed and
atomization gas into the central portion of the riser thereby providing a
desirable feed/catalyst contact condition while preventing impingement of
the feed upon the riser walls.