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煤及煤焦孔隙结构的研究——Ⅱ.煤及煤焦孔隙结构特徵与气化反应性的关系
引用本文:黄瀛华,沙兴中,程秀秀,任德庆.煤及煤焦孔隙结构的研究——Ⅱ.煤及煤焦孔隙结构特徵与气化反应性的关系[J].医学教育探索,1986(3).
作者姓名:黄瀛华  沙兴中  程秀秀  任德庆
作者单位:华东化工学院能源化工系 (黄瀛华,沙兴中,程秀秀),华东化工学院能源化工系(任德庆)
基金项目:中国科学院科学基金资助
摘    要:用加压热天平研究了九种不同品位的煤焦在CO_2气氛中的反应活性,测定了一种褐煤和一种无烟煤以及它们的煤焦的总孔容积,孔容积分布和比表面积,也测定了在气化过程中这些孔结构特徵的变化。褐煤焦的高活性是由于它们具有较高的总孔容积和比表面积。除灰无烟煤焦活性增加5倍,是由于孔结构特徵的变化,褐煤焦在气化过程中反应活性的变化同样由于孔容积和表面积的变化。

关 键 词:  煤气化  反应性  反应性测量  孔分布  (煤焦  孔结构)

A study on the pore structure of coal and coal char
Huang Yinghu,Sha Xingzhong,Cheng Xiuxiu Ren Deqing.A study on the pore structure of coal and coal char[J].Researches in Medical Education,1986(3).
Authors:Huang Yinghu  Sha Xingzhong  Cheng Xiuxiu Ren Deqing
Institution:Department of Chemical Engineering of Energy Sources
Abstract:Gasification reactivity of nine coal chars of different rank were determined in CO_2 with a high Pressure thermoblance. The total pore volume, pore volume distribution and pore surface area of a lignite and an antfhracite with their respective chars were investigated, The total pore volume and pore surface area of the lignite char are higher than those of the anthracite char and consequently the reactivity of the former is higher.The reactivity of the demineralized anthracite char is five times higher than that of the char from original sample, and it may be presumed that the change is caused by the change of pore structural characteristies.The variations of pore surface area and pore volume distribution of the lignite char during the course of gasification may account for the change of its reactivity.
Keywords:coal  coal gasification  reactivity  reactivity measurements  pore size distribution (coal char  pore structure)
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