Abstract
The gasification of an aqueous suspension of lignite from Alexandria coalfield (Ukraine) under the supercritical pressure was studied. The initial rates of the formation of hydrogen, carbon dioxide, and methane were evaluated. The mutually stimulating interaction of the components of the system “brown coal–water–mineral matter” was shown due to the influence of nanoscale water medium on the formation of dipole-inductive, dispersive, and ionic associates. In the temperature range 300–450 °C, oxygen source for gaseous products of the lignite supercritical gasification is mainly ion-associative nanoclustered water. The source of hydrogen for the subcritical temperature is the organic part of brown coal and for the supercritical water is the nanoscale medium with ion associates. Thus formed associates were responsible for the further transformation of coal.
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Acknowledgments
This work has been funded by Target Complex Program of Scientific Research of NAS of Ukraine “Biomass as a fuel” (“Biofuels”), project 24, 2009–2012.
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Korzh, R., Bortyshevskyi, V. (2016). Supercritical Water as Nanomedium for Gasification of Lignite–Water Suspension. In: Fesenko, O., Yatsenko, L. (eds) Nanophysics, Nanophotonics, Surface Studies, and Applications. Springer Proceedings in Physics, vol 183. Springer, Cham. https://doi.org/10.1007/978-3-319-30737-4_33
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DOI: https://doi.org/10.1007/978-3-319-30737-4_33
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