N. Keller et al., Continuous process for selective oxidation of H2S over SiC-supported iron catalysts into elemental sulfur above its dewpoint, APP CATAL A, 217(1-2), 2001, pp. 205-217
Iron supported on silicon carbide (SiC) is shown to be a high conversion ca
talyst for the oxidation Of H2S with a high selectivity into elemental sulf
ur above sulfur dewpoint in the presence of large amounts of oxygen and ste
am in the feed. The active phase is probably an iron oxysulfide or a non-st
oichiometric sulfate phase. It is stable for several weeks in an industrial
micropilot plant, and no deactivation is observed even in the presence of
a large amount of steam,
These performances are due to the intrinsic physical properties of the SiC
carrier but also because of the optimal dispersion of the active phase. (C)
2001 Elsevier Science B.V. All rights reserved.