Abstract: In an apparatus for the regeneration of fluid cracking catalyst, the catalyst is cooled in a heat exchanger mounted to the lower side of the regenerator and cool catalyst is returned to the regenerator by means of a separate gas lift.

Abstract: In a process apparatus for the regeneration of fluid cracking catalyst, the catalyst is cooled in an exchanger mounted to the lower side of the regenerator and cool catalyst is returned to the regenerator by means of gas lift.

Abstract: The present invention is concerned with the method of regenerating the fluidizable, catalytic, particulate solids in the regenerator section of an FCC process, and RCC process or a metals removal system or "ART" type process. It is directed to the use of a conduit means for charging fluidizing gaseous material to a vertical cylindrical vessel for cooling fluidizable particulate solids flowing through said vertical cylindrical vessel, which conduit means comprises a horizontal header means having suspended therefrom a plurality of vertical and horizontally spaced apart conduits, each conduit having near its open end a restriction orifice. The header means is located near the top of the cylindrical cooling vessel. One portion of the vertical conduits has lower ends located in the upper half of the vessel and a second portion of the vertical conduits has lower ends located in a lower half of the vessel.

Abstract: The present invention is concerned with the cooling of the fluidizable particulate solids, either catalytic or inert, in the regenerator section of an FCC process, an RCC process or a metals removal systems or "ART" type process. It is directed to the use of a conduit means for charging fluidizing gaseous material to a vertical cylindrical vessel for cooling fluidizable particulate solids flowing through said vertical cylindrical vessel, which conduits means comprises a horizontal header means having suspended therefrom a plurality of vertical and horizontally spaced apart conduits, each conduit having near its open end a restriction orifice. The header means can be located near the top of the cylindrical cooling vessel. While the example of a specific embodiment discloses one portion of the vertical conduits with lower ends located in a lower cross-sectional area of the vessel other arrangements sufficient to ensure proper fluidization are also possible.