Ceria-supported vanadium catalysts were studied for H2S removal via partial and selective oxidation reactions at low temperature. The catalysts were characterized by N2 adsorption at 77 K, Raman spectroscopy, X-ray diffraction techniques, and X-ray fluorescence analysis. X-ray diffraction and Raman analysis showed a good dispersion of the V-species on the support. A preliminary screening of these samples was performed at fixed temperature (T = 327◦C) and H2S inlet concentration (10 vol%) in order to study the catalytic performance in terms of H2S conversion and SO2 selectivity. For the catalyst that exhibited the higher removal efficiency of H2S (92%) together with a lower SO2 selectivity (4%), the influence of temperature (307–370◦C), contact time (0.6–1 s), and H2S inlet concentration (6–15 vol%) was investigated.
CITATION STYLE
Barba, D., Vaiano, V., & Palma, V. (2021). Selective catalytic oxidation of lean-h2s gas stream to elemental sulfur at lower temperature. Catalysts, 11(6). https://doi.org/10.3390/catal11060746
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