The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2007
Filed:
Nov. 28, 2000
Renaud Pontier, Vienne, FR;
Patrick Leroy, Lyons, FR;
Jean-paul Lepage, Rueil Malmaison Cedex, FR;
Marcelin Espeillac, Viroflay, FR;
Renaud Pontier, Vienne, FR;
Patrick Leroy, Lyons, FR;
Jean-Paul Lepage, Rueil Malmaison Cedex, FR;
Marcelin Espeillac, Viroflay, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
An apparatus and a process for catalytic cracking of a hydrocarbon feed is described, carried out in at least two reaction zones, one () operating in catalyst riser mode, wherein the feed and catalyst from regeneration zone () are circulated from bottom to top, the first gases produced are separated from the coked catalyst in a first separation zone (), the catalyst is stripped (), a first cracking and stripping effluent () is recovered and the coked catalyst is recycled () to the regeneration zone. Catalyst () from regeneration zone () and a hydrocarbon feed () are introduced into the upper portion of a dropper reaction zone (), 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 (), the second gases () produced are recovered and the coked catalyst is recycled () to the regeneration zone.