Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 132, Issue 3, Pages 1943-1951Publisher
SPRINGER
DOI: 10.1007/s10973-018-7008-2
Keywords
Clean inhibitor; Spontaneous coal combustion; Ionic liquid; Functional group; Inhibition ability
Funding
- China Postdoctoral Science Foundation [2017M623181]
- Key Research and Development Program of Shaanxi Province [2017ZDXM-SF-092]
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From TG result, [Bmim][BF4] has the best inhibition ability of spontaneous coal combustion to delay the initial temperature, maximum temperature, and final temperature of mass loss with oxidation process on lignite and long flame coal. Cation of ionic liquid (IL) is the critical factor of the oxidation reaction on lignite, and [Bmim](+) can destroy the structure of long flame coal. According to FTIR results, ILs can effectively decrease the easily oxidized functional group on lignite, and the removed ability is [Bmim][BF4] > [Emim][BF4] > [Bmim][NO3]. [Emim][BF4] has the best performance of removed ability on long flame coal. ILs as a green inhibitor and new way is applied to prevent fire in coal industries.
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