Abstract
The possibility of low-temperature oxidation of a solid carbonized coal residue in a mixture of NH4NO3 and supercritical water (723 K and 30 MPa) is shown for the first time and its mechanism is described. Conjugate processes of oxidation of the carbonized residue and formation of combustible gases H2 and CH4 caused by the participation of H2O in redox reactions was found. It was established that the ash residue has a high porosity and consists of agglomerated nanoparticles of silicon and metal oxides.
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Original Russian Text © A.A. Vostrikov, O.N. Fedyaeva, A.V. Shishkin, M.Ya. Sokol.
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Translated from Fizika Goreniya i Vzryva, Vol. 50, No. 2, pp. 132–134, March–April, 2014.
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Vostrikov, A.A., Fedyaeva, O.N., Shishkin, A.V. et al. Combustion of carbonized coal residue in a mixture of ammonium nitrate and supercritical water. Combust Explos Shock Waves 50, 242–244 (2014). https://doi.org/10.1134/S0010508214020178
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DOI: https://doi.org/10.1134/S0010508214020178