Controlled-release inhibitor for preventing the spontaneous combustion of coal

Xuyao Qi (), Cunxiang Wei, Qizhong Li and Libin Zhang
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Xuyao Qi: China University of Mining and Technology
Cunxiang Wei: China University of Mining and Technology
Qizhong Li: China University of Mining and Technology
Libin Zhang: China University of Mining and Technology

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2016, vol. 82, issue 2, No 8, 901 pages

Abstract: Abstract The existing coal self-heating inhibitors usually have the shortcomings of short effective time and low inhibition effect. This study proposed a kind of controlled-release inhibitor and analyzed their differences in inhibition effects compared with existing inhibitors on coal self-heating. The controlled-release inhibitor is made from the synthesis of halogen inhibitors, catechin, copolymer, solvent and surfactant. The controlled-release inhibitor will not break down quickly until coal temperature reaches a value about 70 °C and can continually inhibit the process of coal self-heating after a longer time. The crossing point temperature, propensity to spontaneous combustion and CO generation of coal samples processed by different inhibition methods were tested separately based on an oxidation dynamic method. The results show that the controlled-release inhibitor can inhibit the coal self-heating more effectively for a longer time than existing halogen inhibitors. This study provides a new method for more efficient prevention of coal spontaneous combustion.

Keywords: Coal fire; Propensity of coal to spontaneous combustion; Controlled release; Inhibitor (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (7)

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DOI: 10.1007/s11069-016-2224-1

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