Continuous process for selective oxidation of H2S over SiC-supported iron catalysts into elemental sulfur above its dewpoint

Citation
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
Citations number
85
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
APPLIED CATALYSIS A-GENERAL
ISSN journal
0926-860X → ACNP
Volume
217
Issue
1-2
Year of publication
2001
Pages
205 - 217
Database
ISI
SICI code
0926-860X(20010903)217:1-2<205:CPFSOO>2.0.ZU;2-8
Abstract
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.