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Methane combustion in hydrate systems: Water-methane and water-methane-isopropanol

Abstract

Kinetics of dissociation of synthetic and natural methane gas hydrates, and also double isopropanol-methane hydrate is investigated. Thermal fields of the sample surfaces are measured by means of thermal imaging in combustion of released methane with clathrate dissociation. The dissociation rates of natural hydrate and double hydrate with isopropanol are many times lower than those of synthetic methane hydrate. Methane combustion is accompanied by formation of a thin water film on the powder surface, which has a strong effect on the heat and mass transfer mechanisms. The experiments demonstrated partial self-preservation for methane hydrate and the absence of self-preservation for double isopropanol-methane hydrate. The experimentally observed dissociation rate of double isopropanol-methane hydrate is considerably lower than that of methane hydrate.

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Correspondence to S. Ya. Misyura.

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Nakoryakov, V.E., Misyura, S.Y., Elistratov, S.L. et al. Methane combustion in hydrate systems: Water-methane and water-methane-isopropanol. J. Engin. Thermophys. 22, 169–173 (2013). https://doi.org/10.1134/S1810232813030016

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Keywords

  • Dissociation Rate
  • Engineer THERMOPHYSICS
  • Methane Combustion
  • Methane Hydrate
  • Hydrate Dissociation