OALib Journal期刊
ISSN: 2333-9721
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龙口页岩油中含氧化合物的分析与鉴定
, PP. 538-544
Keywords: 页岩油,含氧化合物,gc-ms,ft-icrms
Abstract:
?用酸碱分离和萃取色谱分离相结合的方法将龙口页岩油分离为酸性组分、碱性组分和五个中性组分(饱和烃、芳香烃、含氮化合物、含氧化合物1、含氧化合物2)。采用gc-ms和负离子esift-icrms鉴定了龙口页岩油中酸性组分、中性组分4和中性组分5中含氧化合物的组成。gc-ms分析结果表明,龙口页岩油酸性组分含氧化合物主要包括苯酚类、茚满酚类、萘酚类、联苯酚类、芴酚类、菲酚类,以及c5~16烷酸;龙口页岩油中性组分4和中性组分5中含氧化合物主要包括c9~32脂肪酮和酯类化合物。ft-icrms分析结果表明,龙口页岩油中含氧化合物主要有o1、o2、o3、n1o1、n1o2类化合物,其中,o1和o2类化合物种类较多。龙口页岩油重均相对分子质量集中在150~600da,说明龙口页岩油是由小分子化合物组成的。其表现出来的某些大分子化合物的性质,是由小分子化合物通过范德华力或氢键聚合在一起而形成的。龙口页岩油中o1、o2、o3类化合物中dbe主要分布在1和4,说明龙口页岩油中o1、o2、o3类化合物不饱和度和缩合度较低,因此,龙口页岩油是生物降解程度较低的油。
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