C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/112, 196/127
C10G 11/14 (2006.01) B01J 8/18 (2006.01) C10G 11/18 (2006.01)
Patent
CA 1050916
ABSTRACT OF THE DISCLOSURE A catalytic reactor in which feed, catalyst and diluent gas enter the bottom of a reactor which has a cross-sectional area which does not decrease substantially, preferably which has a substantially constant cross-sectional area, from the point at which catalyst and feed first come in contact to the reactor outlet. Atop the reactor is a disengage- ment vessel of relatively large diameter in which the product gases are separated from the catalyst. The catalyst drops through a stripper culminating in a bend which collects catalyst to provide a seal between the reactor and a regenerator. A lift line carries the catalyst to the top of the regenerator through which the catalyst moves downward to a transfer line that returns the catalyst to the reactor. Flue gases are removed from the top of the regenerator. The transfer line culminates in a bend to collect solid catalyst, providing a seal between the regenerator and the reactor. Fluidizing gas is introduced into the transfer line by an inlet probe which can be moved vertically so that the level within the transfer line at which the gas is introduced can be varied to control the catalyst flow rate. An improved process of catalytic hydrocarbon conver- sion has also been discovered.
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