用固体核磁共振和电子能谱研究我国高硫煤的结构

用固体ＮＭＲ和ＸＰＳ技术研究了我国三种（广西合山煤、湖南辰溪煤、浙江长广煤）高硫煤的结构特征。由固体ＮＭＲ测试结果计算出煤的十二种结构参数和芳香簇团的大小，获得了三个样品的结构特征及变化规律，由ＸＰＳ测试结果得到了煤中各种不同形态硫、氮的结合能数值。根据前入所做的模型化合物的结果，得知三咱煤中硫元素主要以噻吩硫形态存在，氮元素主要以吡啶和中的形态存在。

STUDY ON STRUCTURAL CHARACTERIZATION OF THREE CHINESE COALS OF HIGH ORGANIC SULPHUR CONTENT USING XPS AND SOLID-STATE NMR SPECTRESCOPY

Three Chinese coals of high organic sulphur content(Guangxi Heshan coal,Hunan Chenxi coal,Zhejiang Changguang coal)were investigated by solid-state NMR and XPS techniques. Twelve structure parameters of coal were obtained by soild-state NMR.Aromatic cluster size was calculated.Structural characterization and varied regularity were obtained.The binding energy of sulphur in different forms was obtained by XPS.The binding energy of nitrogen in different forms was obtained.Sulphur element of thethree coals mainly exists in thiophenesulphur form on the basis of model compounds.Nitrtogen element of the three coals mainly exists in pyridine form and pyrrole form on the basis of model compounds.