Riser disengager with suspended catalyst separation zone

Details Riser disengager with suspended catalyst separation zone Riser disengager with suspended catalyst separation zone

1995-05-22

1997-03-25

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208152, 208163, 208164, 208113, 208176, 208155, C10G 3500

Patent

active

056140835

ABSTRACT:
This FCC process suspends a layer of catalyst in a riser proximate or above the riser outlets. The density at the riser outlets is higher than the flowing density in the riser. The suspended catalyst provides a disengagement zone that enhances the separation of catalyst from product vapors. The riser operates in a manner that prevents any discharge of catalyst from its end. The arrangement also provides a convenient method for vetoing stripping vapors into a closed reactor cyclone system.

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patent: 5290430 (1994-03-01), Centinkaya
patent: 5417931 (1995-05-01), Cenlinkaya

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