C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
C10G 11/18 (2006.01)
Patent
CA 2236296
The invention concerns a method of catalytic cracking of an oil feedstock by causing a catalyst to flow from a regenerating zone (4) into a conditioning zone (2) in dense fluidized bed upstream of an injecting zone (10), the fluidization rate being between 0.1 to 30 cm/s. It consists in the following steps: regulating the flux of a catalyst flowing through a restricting element (11) into the injecting zone (10), injecting the hydrocarbon feedstock (12) below the restricting element in the opposite direction of the formed catalyst flow and at a predetermined injecting angle based on the amount of movement of the feedstock and the catalyst.
On décrit un procédé de craquage catalytique d'une charge pétrolière où l'on fait s'écouler le catalyseur provenant d'une zone de régénération (4) dans une zone de conditionnement (2) en lit fluidisé dense en amont d'une zone d'injection (10), la vitesse de fluidisation étant de 0,1 à 30 cm/s. On régule un flux de catalyseur s'écoulant par un organe à restriction (11) dans la zone d'injection (10), on injecte la charge hydrocarbonée (12) en dessous de l'organe à restriction à contre courant du sens d'écoulement du catalyseur mis en forme et sous un angle d'injection prédéterminé en fonction des quantités de mouvement de la charge et du catalyseur.
Bonifay Regis
Courteheuse Gerard
Del Pozo Mariano
Gauthier Thierry
Pontier Renaud
Institut Francais Du Petrole
Robic
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