H2S purification from biogas by direct selective oxidation to sulfur on V2O5-CeO2 structured catalysts

作者：Palma V^*; Barba D

来源：Fuel, 2014, 135: 99-104.

DOI：10.1016/j.fuel.2014.06.012

• H2S catalytic oxidation
• Vanadium-based catalysts
• Cordierite honeycomb
• Washcoating

The complete preparation procedure of catalytic cordierite monoliths has been studied, from the washcoating with CeO2-ZrO2 to the deposition of the active phase (V2O5) for the abatement of H2S from biogas by selective partial oxidation to sulfur at 150-200 degrees C. %26lt;br%26gt;The washcoat deposition on the cordierite was carried out by dip coating method, while the active phase was deposited by wet impregnation after washcoat deposition and stabilization. %26lt;br%26gt;The washcoat coating quality was evaluated with adhesion tests and SEM analysis; furthermore the washcoat was characterized by X-ray Diffraction, X-ray Fluorescence (XRF) and Hg porosimetry. %26lt;br%26gt;The effect on the catalytic performances of the vanadium loading variable between 2 wt% and 19 wt% was investigated in the temperature range of 150-200 degrees C in terms of H2S conversion and SO2 production.

• 出版日期2014-11-1