Multiple-stage catalytic reforming with gravity-flowing dissimil

Details Multiple-stage catalytic reforming with gravity-flowing dissimil Multiple-stage catalytic reforming with gravity-flowing dissimil

1978-05-02

1979-09-11

Davis, C.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

208 64, 208 65, 208139, C10G 3508

Patent

active

041674740

ABSTRACT:
A multiple-stage catalytic conversion system in which a hydrocarbonaceous charge stock and hydrogen flow serially through a plurality of catalytic reaction zones in each of which the catalyst particles are movable via gravity-flow. Dissimilar catalyst particles are utilized in the reactor systems which share a common regenerating tower through which the catalyst particles are also downwardly movable via gravity-flow. Dissimilarity of the catalyst particles stems from a difference in activity and stability characteristics. In turn, this difference may be attributed either to physical, or chemical changes between the two composites, or both.

REFERENCES:
patent: 2349575 (1944-05-01), Voorhees
patent: 2377512 (1945-06-01), Page
patent: 2471078 (1949-05-01), Ogorzaly
patent: 2767126 (1956-10-01), Rice
patent: 3692496 (1972-09-01), Greenwood et al.

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