中文摘要：

采用^13C交叉极化/魔角旋转-核磁共振（^13C CP/MAS NMR）技术对四种煤进行分析,结合化学分析方法,考察了含氧官能团的分布规律,尤其是非活性醚键的含量。结果表明,^13C CP/MAS NMR方法可以定量分析煤中部分含氧官能团,四种煤中羧基和羰基的含量分别为0.00~1.41和0.45~1.91 mol/kg;^13C CP/MAS NMR与化学分析方法结合,可以定量解析煤中非活性醚键的含量,四种煤的醚键含量值为5.33~10.54 mol/kg,而活性醚键含量仅为0.04~0.13 mol/kg,煤中醚键的赋存状态以非活性醚键为主。

英文摘要：

The solid state high resolution13C CP / MAS NMR technology was employed to analyze O-containing functional groups in 4 coals. The variation and contents of inactive O-containing functional groups in the coals were obtained in combination with chemical method. The results showthat the 13C CP / MAS NMR method is effective to obtain the contents of some O-containing functional groups. The contents of carboxyl and carbonyl in the lowrank coal are from 0. 00 to 1. 41 and from 0. 45 to 1. 91 mol / kg,respectively. Combined with chemical method,the content of ether bond is obtained,which is from 5. 33 to 10. 54 mol / kg. However,the value of inactive ether bond in the coals is only from 0. 04 to 0. 13 mol / kg,and the occurrence of the ether bond is predominantly inactive,fewof them exists in high rank coal.