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US 8,007,728 B2Granted
System, apparatus, and process for cracking a hydrocarbon feed
AssigneeUop LLC
InventorsPaolo Palmas, Robert Mehlberg, Keith Allen Couch, Paul Nishimura
Life of this patent
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Abstract
One exemplary embodiment can be a fluid catalytic cracking system. The fluid catalytic cracking system can include a reaction zone including a riser having a top and a bottom adapted to receive spent catalyst at a first elevation and regenerated catalyst at a second elevation. Typically, the first elevation is lower than the second elevation. Additionally, the fluid catalytic cracking system can include a gas distributor contained near the bottom of the riser in communication with a hydrocarbon feed.
Claims1
An apparatus for cracking a hydrocarbon feed, comprising:
- A) a reaction zone, comprising:
- 1) a riser having a top and a bottom;
- wherein the riser comprises:
- a) a gas distributor proximate to the bottom of the riser wherein a top of the gas distributor is below at least a portion of a spent catalyst inlet and a regenerated catalyst inlet wherein the regenerated catalyst inlet is above the spent catalyst inlet, and wherein the gas distributor comprises a pipe having an expanding diameter terminating in an outlet and a member coupled to the pipe proximate to the outlet wherein the member forms a plurality of holes and a plurality of tubes positioned in, respectively, at least some of the plurality of holes but not extending outwardly of said holes;
- 2) a reaction vessel communicating with the riser;
- and
- B) a disengagement zone.
4 more elements
Dependencies are inferred from the claim text.