Abstract
The possibility of providing an appreciable decrease in carbon monoxide concentrations in products due to the combustion of natural gas-air mixtures in infrared burners by installing a radiation gauze screen with a catalytic Pd-Ce/Al2O3 coating over the matrix is demonstrated. When permeable matrices with radiation gauze screens with and without catalytic coatings are used, the concentration of nitrogen oxides in combustion products was less than 20 ppm within a range of specific combustion powers from 20 to 100 W/cm2. The use of a screen with a catalytic coating provides record low CO concentrations in combustion products at a level of 3–5 ppm within a range of specific combustion powers from 30 to 60 W/cm2. The catalytic coating on the gauze screen that is developed retains its serviceability through multiple cycles of heating to temperatures of 1400 K.
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Vasilik, N.Y., Porsin, A.V. & Shmelev, V.M. Environmental Characteristics of Infrared Burners with a Catalytic Radiation Screen. Russ. J. Phys. Chem. B 13, 101–106 (2019). https://doi.org/10.1134/S1990793119010159
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DOI: https://doi.org/10.1134/S1990793119010159