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Core-in-shell sorbent for hot coal gas desulfurization

United States Patent

February 10, 2004
View the Complete Patent at the US Patent & Trademark Office
A core-in-shell sorbent is described herein. The core is reactive to the compounds of interest, and is preferably calcium-based, such as limestone for hot gas desulfurization. The shell is a porous protective layer, preferably inert, which allows the reactive core to remove the desired compounds while maintaining the desired physical characteristics to withstand the conditions of use.
Wheelock; Thomas D. (Ames, IA), Akiti, Jr.; Tetteh T. (Ames, IA)
Iowa State University Research Foundation, Inc. (Ames, IA)
09/ 492,516
January 27, 2000
GRANT REFERENCE This invention here set forth was federally funded by the U.S. Department of Energy, Advanced Coal Research at U.S. Colleges and Universities Program, under Grant No. DE-FG22-96PC96203 and Grant No. DE-FG26-99FT40587.