Efficient, regenerable sorbents for removal of H.sub.2 S from high temperature gas streams comprise porous, high surface area particles. A first class of sorbents comprise a thin film of binary oxides that form a eutectic at the temperature of the gas stream coated onto a porous, high surface area refractory...http://www.google.fr/patents/US4729889?utm_source=gb-gplus-shareBrevet US4729889 - High temperature regenerative H.sub.2 S sorbents
