Fluidized catalytic cracking of hydrocarbons utilizing a vented

Details Fluidized catalytic cracking of hydrocarbons utilizing a vented Fluidized catalytic cracking of hydrocarbons utilizing a vented

1993-01-25

1994-11-15

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208150, 208153, 208161, 208164, C10G 1118

Patent

active

053645154

ABSTRACT:
An FCC process and apparatus is arranged to provide a low volume dilute disengagement zone in a reactor vessel. A vented riser that provides an open discharge of catalyst and gaseous products is directly discharged into a reactor vessel. 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. The cyclone separators are located to the outside of the reactor riser and circulate catalyst directly back to the reactor riser or directly to an independent stripping vessel that returns the catalyst to the regenerator.

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