Patent ID: 6743405
Filing Date: 2004-06-01
Classification: B01J

Abstract:
A material for removing hydrogen sulfide from a gas stream, the material comprising:a) a compound reactive with hydrogen sulfide at between 30Â° and 200Â° C., the reactive material selected from the group consisting of iron (III) hydroxide, potassium bicarbonate, rubidium hydroxide, zinc oxide hydrate, lithium hydroxide, sodium peroxide, and combinations thereof, said reactive material calcined at temperatures below 150Â° C. and reactive with hydrogen sulfide at between 30Â° and 200Â° C.; b) the reactive compound having a weight percent range of 30-70%; c) a first inert diluent selected from a group consisting of titanium oxide, calcium sulfate, calcium phosphate, calcium silicate, magnesium sulfate, zinc silicate, zinc aluminate, and alumino silicate and combinations thereof; d) a second inert diluent having a particle size at least twice that of the reactive compound selected from a group consisting of silica, silica gel, alumina, alumina gel, sand, and calcium sulfate and combinations thereof; e) the first and second diluents having a weight percent range of 10-30% of the material; f) a binder unreactive with hydrogen sulfide selected from a group consisting of bentonite, kaolinite, cement, hydroxypropylmethyl cellulose, molasses, starch, polyvinyl acetate, cellulose, hydroxy cellulose, lignin sulfonate, and combinations thereof; and g) the binder having a weight percent range of 2-60%.