Abstract: A gas/solid separation system that can be applied to any type of FCC unit regenerators, consists of a device for separating solid particles contained in a gas stream coming from the regeneration zone of a fluid catalytic cracking (FCC) unit bounded by an inner envelope (3) of cylindrical shape centered about the vertical axis of the regeneration zone, and an outer envelope (1) that has one approximately horizontal wall (15), followed by one curvilinear wall (16), and one approximately vertical wall (17), the set of said walls (15, 16, 17) covering the inner envelope (3) and forming a set of separation chambers (2) radially distributed around the inner envelope (3) in which the gas/solid suspension to be separated circulates. This system makes it possible to obtain, at the same time, very good separation efficiency while minimizing the pressure drop and only requiring a single downstream cyclone stage.

Abstract: The present invention describes a novel gas/solid separation system that can be applied to any type of FCC unit regenerators. It consists of a device for separating solid particles contained in a gas stream coming from the regeneration zone of a fluid catalytic cracking (FCC) unit bounded by an inner envelope (3) of cylindrical shape centred about the vertical axis of the regeneration zone, and an outer envelope (1) that has one approximately horizontal wall (15), followed by one curvilinear wall (16), and one approximately vertical wall (17), the set of said walls (15, 16, 17) covering the inner envelope (3) and forming a set of separation chambers (2) radially distributed around the inner envelope (3) in which the gas/solid suspension to be separated circulates. This novel separation system makes it possible to obtain, at the same time, very good separation efficiency while minimizing the pressure drop and only requiring a single downstream cyclone stage.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The present invention describes a gas-solid reactor with two fluidized reaction zones having an integrated gas-solid separation system to achieve rigorously controlled residence times.

Abstract: This invention describes a new 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 new 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.

Abstract: 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.