Process for improving a gas containing a minor amount of...

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

B - Operations, Transporting

01

D

183/31

B01D 53/04 (2006.01)

Patent

CA 1146873

ABSTRACT OF THE DISCLOSURE 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 im- pure gas with an adsorbent comprising a composite of an alumina support and sodium and vanadium oxides. A second adsorbate obtaining 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 adsorb- ate with water vapor at a temperature in the range 120°C to 815°C.

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