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Process and system for removing sulfur from sulfur-containing gaseous streams

United States Patent

August 14, 2012
View the Complete Patent at the US Patent & Trademark Office
A multi-stage UCSRP process and system for removal of sulfur from a gaseous stream in which the gaseous stream, which contains a first amount of H.sub.2S, is provided to a first stage UCSRP reactor vessel operating in an excess SO.sub.2 mode at a first amount of SO.sub.2, producing an effluent gas having a reduced amount of SO.sub.2, and in which the effluent gas is provided to a second stage UCSRP reactor vessel operating in an excess H.sub.2S mode, producing a product gas having an amount of H.sub.2S less than said first amount of H.sub.2S.
Basu; Arunabha (Aurora, IL), Meyer; Howard S. (Hoffman Estates, IL), Lynn; Scott (Pleasant Hill, CA), Leppin; Dennis (Chicago, IL), Wangerow; James R. (Medinah, IL)
Gas Technology Institute (Des Plaines, IL)
13/ 053,551
March 22, 2011
The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Contract No. DE-FC26-05NT42458 awarded by the U.S. Department of Energy.