Catalytic reforming process

Details Catalytic reforming process Catalytic reforming process

1985-09-09

1986-09-23

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208138, C10G 3506

Patent

active

046134247

ABSTRACT:
In a process wherein, in a series of reforming zones, or reactors, each of which contains a bed, or beds of a sulfur-sensitive polymetallic platinum-containing catalyst, the beds of catalyst are contacted with a hydrocarbon or naphtha feed, and hydrogen, at reforming conditions to produce a hydrocarbon, or naphtha product of improved octane, the improvement wherein, at start-up, sulfur is added to the tail reactor of the series, and excluded from the lead reactor. Increased hydrogen purity, aromatics, and C.sub.5 + liquid yields are obtained, and there is less gas make.

REFERENCES:
patent: 3006841 (1961-10-01), Haensel
patent: 3415737 (1968-12-01), Kluksdahl
patent: 3424669 (1969-01-01), Carter et al.
patent: 3669875 (1972-06-01), Plank et al.
patent: 4166024 (1979-08-01), Swan

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