Inventors:
William Bachop Dolan - Yardley PA, US
John Warren Byrne - Edison NJ, US
Michael John Mitariten - Pittstown NJ, US
Kenneth Butwell - St. Lucie West FL, US
Alfonse Maglio - River Edge NJ, US
Assignee:
BASF Catalysts LLC - Florham Park NJ
International Classification:
C01B 17/04
C01B 17/50
US Classification:
4235731, 4235762, 4235768, 42324401, 42324402, 42324403, 42324404, 42324409, 4232441, 42324411, 423539, 423542
Abstract:
Recovering sulfur from a gas stream containing hydrogen sulfide by oxidizing the gas stream to convert the hydrogen sulfide in the gas stream to sulfur oxide, and thus form a sulfur oxide enriched gas stream. The sulfur oxide enriched gas stream is contacted with a solid, sulfation resistant adsorbent bed at relatively low temperatures to extract the sulfur oxides and retain them as sulfur compounds, thus forming a sulfur oxide depleted gas stream. The adsorbent bed is then contacted with an inert or reducing gas stream to reduce the retained sulfur compounds to sulfur and/or sulfur dioxide and thereby form an enriched sulfur and/or sulfur dioxide bearing stream. The elemental sulfur is recovered and/or the sulfur dioxide bearing stream may be recycled to the Claus unit for further conversion.