Catalytic steam reforming of hydrocarbons

Details Catalytic steam reforming of hydrocarbons Catalytic steam reforming of hydrocarbons

C - Chemistry, Metallurgy

10

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C10G 59/04 (2006.01) B01J 8/06 (2006.01) C01B 3/38 (2006.01)

Patent

CA 1144099

ABSTRACT OF THE DISCLOSURE The hot effluent from the catalytic steam reforming of a major portion of a fluid hydrocarbon feed stream in the reformer tubes of a primary reformer, or said effluent after secondary reforming thereof, is mixed with the hot effluent from the catalytic steam reforming of the remaining portion of the feed discharged from the reformer tubes of a primary reformer-exchanger. The combined effluent is passed on the shell side of the reformer-exchanger contercurrently to the passage of feed in the reformer tubes thereof, thus supplying the heat for the reforming transfer and/or by contact with combustion gases, at a remainder of said reformer-exchanger at a steam/hydrocarbon tubes of said reformer-exchanger at a steam/hydrocarbon mole ratio of about 3-6/1. The reformer shell of the reformer-exchanger is internally insulated by a refractory lining or by use of a double shell with passage of water or a portion of the feed material between the inner and outer shells. There is no significant difference between the pressure inside and outside of the reformer tubes of said primary reformer-exchanger.

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