不同煤阶软硬煤的吸附—解吸规律及应用
发布时间：2018-11-24 15:33
【摘要】：在大量调研国内外研究成果的基础上，分析了不同煤阶软硬煤吸附解吸规律研究方面存在的问题，测试了不同变质程度软硬煤的孔隙结构参数、大分子结构参数、吸附常数、解吸数据等参数，研究了不同煤阶软硬煤的孔隙结构特征和大分子结构特征，采用量子化学MP2方法计算了不同破坏类型煤的吸附势阱，从微观上解释了煤吸附甲烷的机理，研究了不同煤阶软硬煤的吸附特征并找出了其控制机理，采用吸附势理论建立了煤吸附甲烷的综合模型，搭建了具有温控功能的大质量煤样高效瓦斯吸附解吸实验系统，研究了不同煤阶软硬煤的解吸规律及其控制机理，，确定了不同变质程度煤的突出区域预测瓦斯含量临界值，并分析瓦斯含量损失量计算方法的可靠性。
[Abstract]:Based on a large number of domestic and foreign research results, the problems in the study of adsorption and desorption of soft and hard coals with different rank are analyzed, and pore structure parameters, macromolecular structure parameters, adsorption constants of soft and hard coals with different metamorphism are tested. The pore structure and macromolecular structure of soft and hard coals with different rank were studied by desorption data. The adsorption potential well of different broken types of coal was calculated by quantum chemical MP2 method, and the mechanism of methane adsorption by coal was explained microscopically. The adsorption characteristics of soft and hard coal with different rank were studied and its control mechanism was found. A comprehensive model of methane adsorption by coal was established by using adsorption potential theory, and an experimental system of high efficiency gas adsorption and desorption of high quality coal samples with temperature control function was set up. The desorption law and control mechanism of soft and hard coal with different rank were studied. The critical value of gas content in outburst area of coal with different metamorphism was determined and the reliability of calculating method of gas content loss was analyzed.
【学位授予单位】：中国矿业大学（北京）
【学位级别】：博士
【学位授予年份】：2013
【分类号】：TD713
本文编号：2354266
[Abstract]:Based on a large number of domestic and foreign research results, the problems in the study of adsorption and desorption of soft and hard coals with different rank are analyzed, and pore structure parameters, macromolecular structure parameters, adsorption constants of soft and hard coals with different metamorphism are tested. The pore structure and macromolecular structure of soft and hard coals with different rank were studied by desorption data. The adsorption potential well of different broken types of coal was calculated by quantum chemical MP2 method, and the mechanism of methane adsorption by coal was explained microscopically. The adsorption characteristics of soft and hard coal with different rank were studied and its control mechanism was found. A comprehensive model of methane adsorption by coal was established by using adsorption potential theory, and an experimental system of high efficiency gas adsorption and desorption of high quality coal samples with temperature control function was set up. The desorption law and control mechanism of soft and hard coal with different rank were studied. The critical value of gas content in outburst area of coal with different metamorphism was determined and the reliability of calculating method of gas content loss was analyzed.
【学位授予单位】：中国矿业大学（北京）
【学位级别】：博士
【学位授予年份】：2013
【分类号】：TD713
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