Process for improving a gas containing a minor amount of sulfur

Details Process for improving a gas containing a minor amount of sulfur Process for improving a gas containing a minor amount of sulfur

1978-06-26

1980-12-16

Vertiz, O. R.

Chemistry of inorganic compounds

Sulfur or compound thereof

Binary compound

423244, C01B 1716, C01B 1700, B01J 800

Patent

active

042397421

ABSTRACT:
A process is provided for adsorbing sulfur dioxide impurity from an impure gas and producing a hydrogen sulfide-rich gas. In the process, a first adsorbate containing oxidized sulfur is produced by contacting the impure gas with an adsorbent comprising a composite of an alumina support and sodium and vanadium oxides. A second adsorbate containing reduced sulfur is produced by contacting said first adsorbate with carbon monoxide. A gas rich in hydrogen sulfide is then produced by contacting said second adsorbate with water vapor at a temperature in the range 120.degree. C. to 815.degree. C.

REFERENCES:
patent: 3438728 (1969-04-01), Grantham
patent: 3501897 (1970-03-01), Van Helden et al.
patent: 3574545 (1971-04-01), Grantham
patent: 3778501 (1973-12-01), Lang et al.
patent: 3816597 (1974-06-01), Smith
patent: 3989798 (1976-11-01), Greene et al.

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