Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2007-05-22
2007-05-22
Caldarola, Glenn (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C208S072000, C208S078000, C422S139000, C422S144000, C422S145000, C422S147000
Reexamination Certificate
active
10149597
ABSTRACT:
An apparatus and a process for catalytic cracking of a hydrocarbon feed is described, carried out in at least two reaction zones, one (30) operating in catalyst riser mode, wherein the feed and catalyst from regeneration zone (3) are circulated from bottom to top, the first gases produced are separated from the coked catalyst in a first separation zone (38), the catalyst is stripped (40), a first cracking and stripping effluent (42) is recovered and the coked catalyst is recycled (45) to the regeneration zone. Catalyst (12) from regeneration zone (3) and a hydrocarbon feed (19) are introduced into the upper portion of a dropper reaction zone (16), the catalyst and feed being circulated from top to bottom, the coked catalyst is separated from the second gases produced in a second separation zone (20), the second gases (24) produced are recovered and the coked catalyst is recycled (25) to the regeneration zone.
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Espeillac Marcelin
Lepage Jean-Paul
Leroy Patrick
Pontier Renaud
Caldarola Glenn
Douglas John
Institut Francais du Pe'trole
Millen White Zelano & Branigan P.C.
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