Process for removing sulphur from the waste gas of a reduction s

Details Process for removing sulphur from the waste gas of a reduction s Process for removing sulphur from the waste gas of a reduction s

1988-05-10

1989-08-15

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423244, C01B 1716, C01B 3120

Patent

active

048572845

ABSTRACT:
A novel process for removing the sulphur contained in a gaseous compound by absorbtion from at least part of the waste gas of a reduction shaft furnace (1) for iron ore is described. The waste gas is initially cleaned in a scrubber (13) and cooled, followed by desulphurization, during which the sulphur-absorbing material is constituted by part of the sponge iron produced in the reduction shaft furnace. Desulphurization advantageously takes place at a temperature in the range 30.degree. to 60.degree. C. It is preferably carried out on the CO.sub.2 separated from the blast furnace gas and the blast furnace gas part used as export gas.

REFERENCES:
patent: 4230594 (1980-10-01), Weber et al.
patent: 4673432 (1987-06-01), Hauk

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