51, 9–17 (2018)Ĭolaizzi, G.J.: Prevention, control and/or extinguishment of coal seam fires using cellular grout. et al.: Coal pores and fracture development during CBM drainage: their promoting effects on the propensity for coal and gas outbursts. Taylor, T.P.: Coal fires burning out of control around the world: thermodynamic recipe for environmental catastrophe. This study combines physical and chemical inhibitions of coal oxidation and provides a new method to efficiently prevent coal spontaneous combustion. Nevertheless, the composite inhibitor provides stable physicochemical inhibition for coal oxidation throughout the oxidation process by the synergistic effect of physical and chemical inhibition the composite inhibitor provides a better overall effect for suppressing coal spontaneous combustion by combining the inhibiting characteristics of the SAP hydrogel and synergistic antioxidant. The SAP hydrogel physically suppresses coal oxidation during the low-temperature phase, while the synergistic antioxidant chemically inhibits the oxidation during the high-temperature stage. Temperature-programmed oxidation, differential scanning calorimetry, and electron spin resonance were used to examine the inhibitor-treated coal samples to investigate the slowing effect of the composite inhibitor by comparing the inhibitions of the SAP hydrogel, synergistic antioxidant, and composite inhibitor on coal oxidation. To achieve multiple and highly effective inhibition of coal spontaneous combustion, a novel composite inhibitor was developed by mixing a superabsorbent polymer (SAP) hydrogel with a synergistic antioxidant.
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