Apparatus for catalytic cracking of a hydrocarbon charge subject

Details Apparatus for catalytic cracking of a hydrocarbon charge subject Apparatus for catalytic cracking of a hydrocarbon charge subject

1989-05-22

1990-08-14

Caldarola, Glenn

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422147, 55 1, 55338, B01D 4512

Patent

active

049485695

ABSTRACT:
A process and an apparatus for catalytic cracking in a reaction zone operated with a fluid or a moving bed is disclosed, wherein the charge is subjected to at least one pretreatment.
According to the invention, at least a portion of said charge, as vapor 40, and at least a part of the catalyst particles 6, circulate at least in one enclosure 1, wherein at least said portion of charge, on the one hand, and said solid particles (of low catalytic activity), distinct from the catalyst particles, on the other hand, are contacted, said solid particles and said charge flowing, as a whole, in the same direction, either downwardly or upwardly in said enclosure 1, at a temperature substantially equal to the temperature prevailing at the inlet of the reaction zone. After stirring of the solid particles with the charge, the latter, free of the major part of the residual products, is separated at 27 from the solid particles and fed with the catalyst particles to the reaction zone 8.
The process and apparatus according to the invention can be used for refining heavy oil charges.

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