Catalytic reforming process

Details Catalytic reforming process Catalytic reforming process

1981-07-14

1982-09-07

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208 65, 208 66, 208138, C10G 4500

Patent

active

043482716

ABSTRACT:
A process, or procedure, for the start-up of reforming units, particularly those employing highly active sulfur-sensitive polymetallic, promoted noble metal containing catalysts. On start-up of a reforming unit, a sulfur-containing naphtha feed is fed at reforming conditions over a platinum-catalyst containing lead reactor of a series while bypassing subsequent reactors of the series, the product therefrom is separated into hydrogen-containing gas and C.sub.5.sup.+ liquid fractions, the hydrogen-containing gas fraction is desulfurized and dried and recycled to the platinum-catalyst containing lead reactor and, after sufficient hydrogen has been generated for operation of a Hydrofiner which is used to hydrodesulfurize the naphtha feed for the reformer, product from the platinum-catalyst containing lead reactor is fed to subsequent reactors of the series which contain the more sulfur-sensitive catalysts.

REFERENCES:
patent: 2880161 (1959-03-01), Moore et al.
patent: 2902434 (1959-09-01), Burton et al.
patent: 3556986 (1971-01-01), Beck et al.

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