Mineral oils: processes and products – Chemical conversion of hydrocarbons – Solids contacting and mixing
Patent
1976-02-27
1977-10-18
Levine, Herbert
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Solids contacting and mixing
208150, 208153, C10G 1118
Patent
active
040545091
ABSTRACT:
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 disengagement 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 conversion has also been discovered.
REFERENCES:
patent: 2328178 (1943-08-01), Teter
patent: 2515369 (1950-07-01), Degnen
patent: 2908630 (1959-10-01), Friedman
patent: 3041273 (1962-06-01), Smith et al.
patent: 3502574 (1970-03-01), Baillie
patent: 3838036 (1974-09-01), Stine et al.
Atlantic Richfield Company
Levine Herbert
Uxa Frank J.
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