In Situ Fourier Transform Infrared Characterization of Sulfur Species Resulting from the Reaction of Water Vapor and Oxygen with Zinc Sulfide

摘要: Steam is utilized as a diluent in the regeneration of zinc-based hot gas desulfurization sorbents used fuel cleanup. Therefore, effect water vapor on interaction zinc sulfide (ZnS) with oxygen at 823, 873, and 923 K was studied using Fourier transform infrared (FTIR) spectroscopy. When ZnS 823 exposed to oxygen, sulfate (SO42-) most prominent species observed pressures greater than 5 × 10-2 Torr while sulfite (SO32-) major during exposures. an equimolar mixture were products but intensity peak more that sulfate. The sulfur formed exposures both 873 923K similar those K, relative intensities peaks corresponding these different. At all three temperatures, presence enhan...