The oxidation of solvents in air on oxidic catalysts — formation of intermediates and reaction network

Quantitative room-temperature mineralization of airborne formaldehyde using manganese oxide catalysts

“…While those catalysts provide efficient CO and ozone removal at room temperature, they often require higher temperatures for reactions with organic pollutants, and are sensitive to moisture [6]. In particular, hopcalite was shown to be effective only at temperatures higher than 250 o Several manganese oxide nano and meso structures (e.g., pyrolusite, cryptomelane) have been shown to have very high catalytic activity in the oxidation of formaldehyde at relatively low temperatures (100 C for the oxidation of volatile organic compounds produced as byproducts of combustion (e.g., acetone) [12] and for the oxidation of propane [13].…”

Kinetic study of the combustion of methyl-ethyl ketone over α-hematite catalyst

“…There are two main types of catalyst on the market [5] for the reduction of VOC emissions: supported noble metal catalysts [6][7][8] and metal oxides [9][10][11][12][13][14][15][16][17][18]; 75% [19] being precious metal based because these are generally supposed to be more active. The Catalytica study [5], however, compares the performance of both types, and the general conclusion is that metal oxides are not necessarily less active than noble metal catalysts.…”

Catalysis in VOC Abatement

“…For example, Lintz and Wittstock [52] found the formation of the above-mentioned by-products at temperature of 350°C when the T 100 of n-butyl acetate was already achieved. In the experiments, the amounts of by-products started to decrease when the reactor length i.e.…”

“…These emissions are typical solvent-VOC emissions and catalytic oxidation of n-butyl acetate is studied e.g. over perovskites [73], over U 3 O 8 [74,75], over doped noble metal catalysts, Cu-Mn oxides, MnO 2 -MgO, Cu x Mg (1-x) Cr 2 O and Cu xCr 2 O 4 [3] and over copper manganate [52]. It seems that in general, noble-metal-based catalysts are more active, but in n-butyl acetate oxidation also Cu-based catalysts seem to be very active.…”