Process for cooling fluid solid particles

Details Process for cooling fluid solid particles Process for cooling fluid solid particles

1993-05-27

1994-10-04

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Solid fluent heat exchange material

122 4D, 122244, 122321, 432 83, 502 44, 34363, 34428, F28C 316, B01J 3832

Patent

active

053517490

ABSTRACT:
An arrangement of apparatus and process thereof for cooling hot fluid solid particles, especially hot regenerated catalytic particles are disclosed. The apparatus comprises a substantially vertical, cylindrical and close ended heat removal vessel through the shell sid passage of which is passed the fluid solid particles that flow downwardly in the form of dense phase fluidized bed, and one or more seperate heat exchange tube units through the tube side passage of which the coolant is passed and evaporized, each of said heat exchange tube units comprising a supply coolant inlet tube, a supply coolant collecting chamber, one or more heat exchange tubes, a vapour collecting chamber and a resulting vapour discharge tube, all of which constitute a close type coolant-to-vapour circulation. The apparatus and process of the present invention is particularly adequate to be utilized in combination with a catalyst regeneration operation in a fluid catalytic cracking operation of heavy residual oil feedstock for the conversion thereof into lighter and more valuable products. (FIG. 1)

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