EFFICIENCY OF EXTROGRAPHY IN THE FRACTIONATION OF COAL-DERIVED OILS

被引：9

作者：

GRANDA, M ^{[1
]}

MENENDEZ, R ^{[1
]}

BERNAD, P ^{[1
]}

BERMEJO, J ^{[1
]}

机构：

[1] UNIV OVIEDO,DEPT QUIM ORGAN,OVIEDO,SPAIN

来源：

FUEL | 1993年 / 72卷 / 03期

关键词：

FRACTIONATION; EXTROGRAPHY; COAL-DERIVED OILS;

D O I：

10.1016/0016-2361(93)90061-6

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Two coal-derived oils consisting of compounds easily identified by gas chromatography mass spectrometry (g.c. m.s.) were fractionated into compound classes by extrography with the aim of investigating the applicability and reliability of this technique for the fractionation of complex mixtures into compound classes. Fractionations were analysed by FT-i.r. and g.c. m.s., and the results were compared in order to study the suitability of FT-i.r. for monitoring fractionations into compound classes. Slight modifications to the procedure previously used were needed to attain a good separation of aliphatics from light alkylated aromatics and hydroaromatics. Aliphatics, aromatics and neutral nitrogen compounds were well separated whereas phenols, which eluted all together in the same fraction, were mixed with basic nitrogen compounds. The similar composition of both samples enabled the accuracy and reproducibility of extrography to be checked. The composition of both coal-derived oils is briefly discussed in relation to their origin.

引用

页码：397 / 403

页数：7

共 14 条

[1] EFFICIENCY OF SEQUENTIAL ELUTION SOLVENT CHROMATOGRAPHY-EXTROGRAPHY TECHNIQUE FOR THE CHARACTERIZATION OF HYDROLIQUEFACTION AND PYROLYSIS PRODUCTS [J].