초록 ▼

A process of regenerating a sulfided sorbent is provided. According to the process of the invention, a substantial portion of the energy necessary to initiate the regeneration reaction is provided by the combustion of a particulate metal sulfide additive. In using the particulate metal sulfide addit

A process of regenerating a sulfided sorbent is provided. According to the process of the invention, a substantial portion of the energy necessary to initiate the regeneration reaction is provided by the combustion of a particulate metal sulfide additive. In using the particulate metal sulfide additive, the oxygen-containing gas used to regenerate the sulfided sorbent can be fed to the regeneration zone without heating or at a lower temperature than used in conventional processes wherein the regeneration reaction is initiated only by heating the oxygen-containing gas. The particulate metal sulfide additive is preferably an inexpensive mineral ore such as iron pyrite which does not adversely affect the regeneration or corresponding desulfurization reactions. The invention further includes a sorbent composition comprising the particulate metal sulfide additive in admixture with an active metal oxide sorbent capable of removing one or more sulfur compounds from a sulfur-containing gas stream.

대표청구항 ▼

[ That which is claimed is:] [1.]1. A particulate metal sulfide additive for enhancing regeneration of a metal oxide sorbent comprising a particulate metal sulfide mineral ore capable of exothermically reacting with oxygen, said particulate metal sulfide mineral ore being supported on a particulate

[ That which is claimed is:] [1.]1. A particulate metal sulfide additive for enhancing regeneration of a metal oxide sorbent comprising a particulate metal sulfide mineral ore capable of exothermically reacting with oxygen, said particulate metal sulfide mineral ore being supported on a particulate support material, said particulate metal sulfide mineral ore being essentially non-reactive and non-catalyzing with respect to hydrocarbon compounds, wherein said particulate metal sulfide mineral ore comprises iron pyrite.