Counter-current process with a hydrodesulfurization of solid car

Details Counter-current process with a hydrodesulfurization of solid car Counter-current process with a hydrodesulfurization of solid car

1974-04-25

1979-01-09

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

201 17, 423659, C01B 1700, C10B 5700

Patent

active

041338677

ABSTRACT:
Finely divided, sulfur bearing carbonaceous materials are carried by hydrogen in counter-current flow at elevated temperatures to the flow of relatively large, metal oxide, hydrogen sulfide accepting pellets. The sulfur contained in the carbonaceous material reacts with the carrier hydrogen to form hydrogen sulfide which, in turn, reacts with the metal oxide to form the corresponding metal sulfide and water. The water and unreacted carrier hydrogen are then separated from the desulfurized carbonaceous material and following separation of water from the residual hydrogen, the hydrogen is recycled with make up hydrogen at elevated pressures to the desulfurization zone. The formed metal sulfide pellets are removed from the base of the desulfurization zone and oxidized back to the oxide state for recycle back to the opposed end of the desulfurization zone.

REFERENCES:
patent: 2037790 (1936-04-01), Nuttall
patent: 2487370 (1949-11-01), Putney
patent: 2631921 (1953-03-01), Odell
patent: 2824047 (1958-02-01), Gorin et al.
patent: 3640016 (1972-02-01), Lee et al.
patent: 3716095 (1973-02-01), Ritzmann et al.
patent: 3801469 (1974-04-01), Essenhigh

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