Resumen

PELUSO, M.A; SAMBETH, J.E  y  THOMAS, H. Reduction of ethanol emissions using manganese oxides supported metallic monoliths: A pilot-scale plant study. Lat. Am. appl. res. [online]. 2013, vol.43, n.4, pp.399-404. ISSN 0327-0793.

Metallic monoliths were prepared by anodized aluminum-scale pilot plant, using sulfuric acid as electrolyte. Anodisation tests were conducted at different times and different temperatures of the electrolytic bath. Aluminum monolith anodized at 40°C for 30 min was selected for catalysts support. The monoliths were impregnated by two methods: i) impregnation in two stages using two Mn salts in an aqueous medium, and ii) impregnation using a KMnO₄ solution in acetone. The last monolith presented a higher and a more homogeneous deposit of manganese oxide layer. The catalytic activity was tested in the total oxidation reaction of ethanol in a pilot-scale reactor at 50 L min^-1, and ethanol concentrations of 900, 1800 and 3600 ppm. Monolith impregnated using acetone solution was more active that prepared in aqueous solution in all the experiments carried out

Palabras clave : MnO_x; Pilot-scale plant; metallic monoliths; VOCs.

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