Fcc process and apparatus having a low volume dilute phase...

Details Fcc process and apparatus having a low volume dilute phase... Fcc process and apparatus having a low volume dilute phase...

C - Chemistry, Metallurgy

10

G

C10G 11/18 (2006.01)

Patent

CA 2065522

"FCC PROCESS AND APPARATUS HAVING A LOW VOLUME DILUTE PHASE DISENGAGEMENT ZONE IN THE REACTION VESSEL" ABSTRACT The operation of an FCC process and apparatus is improved by providing a low volume dilute disengagement zone in a reactor vessel containing a vented riser that provides an open discharge of catalyst and gaseous products into the upper region of the reactor vessel. In the improved system, the interior of the reactor vessel is arranged such that the outlet of the reactor riser is located close to and directed at the top of the reactor vessel, the reactor vessel operates with a dense bed of catalyst having an upper bed level that is only a short distance below the outlet of the reactor riser and the cyclone separators are located to the outside of the reactor riser and circulate catalyst back to the dense bed of the reactor section.

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