Wspólnotowy Serwis Informacyjny Badan i Rozwoju - CORDIS

Performance of plasma/catalysis on other (than vehicles) applications

According to the fact that more energy than in car is available in heavy vehicle we have investigated the efficiency of the plasma-catalyst module in toluene removal until an energy density of 15 J/L (420W for 100 m3/h). We have shown that by increasing the energy density delivered in the plasma module a better efficiency in toluene removal of the plasma alone was observed, and by adding a specific catalyst (manganese oxide supported on active carbon), as high as 7 ppm of toluene can be totally removed with only a energy density of 15 J/L (420 W for 100 m3/h).

The value of 7 ppm of toluene is much higher than the highest possible VOC concentration in open polluted area. According to our experiments that have shown that the plasma efficiency in VOC removal increases when the VOC concentration decreases, we can expect that energy requested in real conditions will be lower. For example, for 100 ppb of toluene (0.1 ppm), and according to our predicting model, the same efficiency of the plasma module (50%), requests only 2 J/L (56 W for 100 m3/h). Concerning the catalyst, the amount deduced from the experimental data (0.3 g for 1.5 L/min) leads to 334 g for 100 m3/h.

These power and catalyst weight show that the plasma catalyst system could be used for largest vehicles than cars (trucks, buses, trains...) in which the constraints regarding the size and the energy consumption of the system are less severe than for cars.

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