Influence of Cu(NO3)2 initiation additive in two-stage mode conditions of coal pyrolytic decomposition

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Abstract

Two-stage process (pyrolysis and oxidation) of brown coal sample with Cu(NO3)2 additive pyrolytic decomposition was studied. Additive was introduced by using capillary wetness impregnation method with 5% mass concentration. Sample reactivity was studied by thermogravimetric analysis with staged gaseous medium supply (argon and air) at heating rate 10 °C/min and intermediate isothermal soaking. The initiative additive introduction was found to significantly reduce volatile release temperature and accelerate thermal decomposition of sample. Mass-spectral analysis results reveal that significant difference in process characteristics is connected to volatile matter release stage which is initiated by nitrous oxide produced during copper nitrate decomposition.

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Larionov, K., Mishakov, I., Slyusarskiy, K., Bolgova, D., & Lavrinenko, S. (2017). Influence of Cu(NO3)2 initiation additive in two-stage mode conditions of coal pyrolytic decomposition. In MATEC Web of Conferences (Vol. 141). EDP Sciences. https://doi.org/10.1051/matecconf/201714101026

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