Method and means for preparing and dispersing atomed hydrocarbon with fluid catalyst particles in a reactor zone

Claim 1

A method for catalytically converting portions of crude oil boiling above 600° F. of API gravity in the range of 5 to 28 with fluid catalyst particles which comprises atomizing a crude oil fraction boiling above 600° F. in the presence of gaseous diluent material to form a fog mixture comprising oil droplets in the range of 100 to 500 microns size external to a riser reaction zone passing the atomized oil-diluent fogged feed mixture through an elongated zone to a feed distributor zone positioned coaxially within the lower portion of an elongated riser reactor zone but above the inlet of catalyst thereto, said distribution zone occupying from 20 to 40 percent of the riser cross section, discharging the atomized-diluent fogged feed mixture through a plurality of separate upwardly extended restricted passageways from the upper surface of said distributor zone generally inclined outwardly from the axis of the riser reaction zone said fogged feed discharged at a velocity in the range of 300 ft./sec. up to sonic velocity, passing a fluid suspension of catalyst particles upwardly through an annular passageway between said feed distributor zone and the wall of the riser reaction zone at an elevated temperature sufficient to convert said discharged atomized oil feed upon contact with the suspended catalyst particles above the distributor zone to form a suspension thereof passing at a velocity sufficient to traverse the riser contact zone within a selected time frame less than 4 seconds and separating the suspension following traverse of the riser reaction zone into a hydrocarbon vaporous product phase and a catalyst phase each separately recovered.

Claim 2

A method for catalytically converting portions of crude oil boiling above 600° F. of API gravity in the range of 5 to 28 with fluid catalyst particles which comprises atomizing a crude oil fraction boiling above 600° F. in the presence of gaseous diluent material to form a fog mixture comprising oil droplets in the range of 100 to 500 microns size external to a riser reaction zone passing the atomized oil-diluent fogged feed mixture through an elongated zone to a feed distributor zone positioned coaxially within the lower portion of an elongated riser reactor zone but above the inlet of catalyst thereto, said distribution zone occupying from 20 to 40 percent of the riser cross section, discharging the atomized-diluent fogged feed mixture through a plurality of separate upwardly extended restricted passageways from the upper surface of said distributor zone generally inclined outwardly from the axis of the riser reaction zone said fogged feed discharged at a velocity in the range of 300 ft./sec. up to sonic velocity, passing a fluid suspension of catalyst particles upwardly through an annular passageway between said feed distributor zone and the wall of the riser reaction zone at an elevated temperature sufficient to convert said discharged atomized oil feed upon contact with the suspended catalyst particles above the distributor zone to form a suspension thereof passing at a velocity sufficient to traverse the riser contact zone within a selected time frame less than 4 seconds and separating the suspension following traverse of the riser reaction zone into a hydrocarbon vaporous product phase and a catalyst phase each separately recovered.