Flameless Catalytic Combustion of Ethanol on Copper, Chromium, and Nickel Oxides

Abstract

The possibility of using 3d-metal oxides as catalysts of self-sustaining catalytic flameless combustion of ethanol was examined. Monolithic catalysts CuO and Cr2O3, supported catalysts 25% CuO/SiO2 and 25% CuO/Al2O3, and ultrasonically treated catalyst 25% NiO/SiO2 can operate for a long time without changes in properties, ensuring 100% ethanol conversion. The wide range of the temperatures reached (300–590°C) allows choosing a catalyst meeting the process tasks.