05686049 is referenced by 5 patents and cites 10 patents.

A catalyst, e.g., a cracking catalyst, and a part of the regeneration fumes are drawn off from the dense catalytic bed of a second regenerator (9) and are introduced by force of gravity into an external exchanger (21) at a junction point beneath the level of the dense bed of the second regenerator. The heat exchange takes place in the bottom part of the exchanger below the junction point. Between the bottom end of the exchanger and the region above the junction point a dense bed zone is formed at a level which is substantially at the height of the dense bed in the regenerator and a discharge zone (27), of suitable size, for the regeneration gases and fluidization gas. The gases and fumes from the exchanger are removed in the diluted fluidized phase from the second regenerator through a conduit (28), while the catalyst is recycled into the bed of the first regenerator through a conduit (34).

Title
Heat exchange apparatus for solid particles for double regeneration in catalytic cracking
Application Number
976044
Publication Number
5686049
Application Date
October 5, 1995
Publication Date
November 11, 1997
Inventor
Thierry Gauthier
Saint Genis Laval
FR
Renaud Pontier
Vienne
FR
Frederic Hoffmann
Paris
FR
Regis Bonifay
Asnieres
FR
Agent
Millen White Zelano & Branigan P C
Assignee
Institut Francais Du Petrole
FR
IPC
F27B 15/08
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