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为了从化学层面上阐述煤炭自燃机理,选用苯乙醛、苯甲醚、二苯基甲烷、苯乙醚、苯甲醇、二苯基甲醇和α-苯丙醇作为煤自燃模型化合物,研究在常温至150℃的氧化反应.利用氧化反应装置和分析仪器,定量分析各种活性基团的化学反应动力学和热力学参数、氧化产物,从而推断出其活性大小的不同.结果表明,各模型化合物在常温至150℃之间,均消耗一定的氧气,同时CO、CO2也有不同程度的生成,其氧化特性与煤相似.
In order to explain the spontaneous combustion mechanism of coal from the chemical aspect, phenylacetaldehyde, anisole, diphenylmethane, phenetole, benzyl alcohol, diphenylmethanol and α-phenylpropanol were selected as model compounds for spontaneous combustion of coal. 150 ℃ .The reaction kinetics and thermodynamic parameters of various reactive groups and the oxidation products were quantitatively analyzed by means of oxidation reaction equipment and analytical instruments.The results showed that the activity of each model compound at room temperature To 150 ℃, both consume a certain amount of oxygen, while CO, CO2 are also generated to varying degrees, its oxidation characteristics and coal similar.