中文摘要：

选择五种不同变质程度的煤样,分别测试二氧化氯作用前后的13C-NMR谱,并对比其变化特征.结果表明,二氧化氯作用后煤中化学活性较高的脂族碳基因因部分转化为较稳定的其他基团而导致含量减少,含氧官能团含量有所降低,稳定的羧基碳和羰基碳含量增加,芳香烃中不饱和烃键以及芳香环上的醚氧键断裂,部分芳香环被打开,芳香度降低.研究结果为揭示二氧化氯对煤储层吸附能力和渗透率影响机理提供了实验支撑.

英文摘要：

In this paper,an experimental study on the 13C-NMR characteristics of coal structure before and after being interacted with chlorine dioxide was carried out selecting five different rank coal samples,and the results are as follows that the aliphatic carbon radicals of higher chemical activity have a decrease after chlorine dioxide due to their partial transformation into other relatively stable radicals; the oxygenic functional radicals have a reduction while the carboxyl and carbonyl of some small molecules have an increase; the unsaturated hydrocarbon bonds of aromatic hydrocarbons and the other oxygen bonds of aromatic nucleus are fractured,and part of aromatic nucleus is opened and thereby the aromaticity is reduced.This study provides an experimental support for revealing the mechanisms that chlorine dioxide affects the adsorption capacity and permeability of coal reservoirs.