Institut Francais Du Pe'trole

Institute Francais Du Petrole

Régis Andreux

Thierry Gauthier

Jean-Luc Duplan

Joseph Ross

Jean-François Le Coz

A gas-solid reactor and method including two fluidized reaction zones having an integrated gas-solid separation system which achieves rigorously controlled residence times in the reactor.

Reactor with two fluidized reaction zones with an integrated gas/solid separation system

The present invention concerns an apparatus and associated process for the catalytic cracking of oil cuts in a fluidized bed. The apparatus and process can catalytically crack a conventional feed in a principal riser B and crack a secondary feed in at least one secondary riser C. The lower end of the secondary riser or risers C is open to the bottom portion of the principal riser B; the upper end of the secondary riser or risers C is open to the top portion of the principal riser B.

Apparatus and process for catalytic cracking of two distinct hydrocarbon feeds

A system for gas-solid separation and for stripping combined into a single so-called separation/stripping zone that is compact and thus contributes to the quality of the yields of the unit. This system can be applied to FCC units and makes it possible to obtain very good separation effectiveness while reducing the contact time between the gas and the solid at the same time.

Growing community of inventors

Francheville, France

Régis Andreux