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ZnO-based regenerable sulfur sorbents for fluid-bed/transport reactor applications

United States Patent

September 21, 2004
View the Complete Patent at the US Patent & Trademark Office
A method for producing regenerable sulfur sorbents in which a support material precursor is mixed with isopropanol and a first portion of deionized water at an elevated temperature to form a sol mixture. A metal oxide precursor comprising a metal suitable for use as a sulfur sorbent is dissolved in a second portion of deionized water, forming a metal salt solution. The metal salt solution and the sol mixture are mixed with a sol peptizing agent while heating and stirring, resulting in formation of a peptized sol mixture. The metal oxide precursor is dispersed substantially throughout the peptized sol mixture, which is then dried, forming a dry peptized sol mixture. The dry peptized sol mixture is then calcined and the resulting calcined material is then converted to particles.
Slimane; Rachid B. (Roselle, IL), Abbasian; Javad (Naperville, IL), Williams; Brett E. (Sturgeon Bay, WI)
Gas Technology Institute (Des Plaines, IL)
10/ 086,168
February 28, 2002
This invention was made with Government support under Prime Contract No. DE-AC21-94MC31089 awarded by the Department of Energy. The Government has certain rights in this invention.