Process for preparation of a reducing gas

Details Process for preparation of a reducing gas Process for preparation of a reducing gas

1985-01-29

1986-12-23

Davis, Curtis R.

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

252373, 423415A, 423648R, C10B 326

Patent

active

046311823

ABSTRACT:
The invention relates to a process for the preparation of a reducing gas having a high reduction potential by catalytic conversion in two steps of a sulphur-free gas mixture of hydrocarbons having a high content of hydrocarbons with two or more carbon atoms. In the first step an inlet stream of at least a part of the gas mixture together with added steam is passed through an adiabatic reactor containing a steam reforming catalyst at an inlet temperature of 440.degree.-510.degree. C. and an outlet temperature of 400.degree.-500.degree. C. and at a pressure of 1-30 kg/cm.sup.2 g the amount of steam added being calculated for obtaining in the inlet stream an H/C ratio of at least 4.8 and an O/C ratio of between 0.5 and 1. The outlet stream from the first step is combined with the top-gas from a reduction furnace, and the combined stream is then further converted in the second step by steam reforming into a reducing gas.

REFERENCES:
patent: 2198553 (1940-04-01), Roberts, Jr.
patent: 3019100 (1962-01-01), Robson
patent: 3748120 (1973-07-01), Beggs et al.
patent: 3828474 (1974-08-01), Quarlulli
patent: 3912502 (1975-10-01), Miyashita et al.
patent: 4071330 (1978-01-01), Sederquist
patent: 4234451 (1980-11-01), Jockel et al.
patent: 4473543 (1984-09-01), Setzer et al.

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