PYROLYSIS-FIELD IONIZATION MASS-SPECTROMETRY OF N-METHYL-2-PYRROLIDINONE EXTRACTS OF COALS

被引：5

作者：

CAGNIANT, D ^{[1
]}

GRUBER, R ^{[1
]}

LACORDAIREWILHELM, C ^{[1
]}

SCHULTEN, HR ^{[1
]}

机构：

[1] FACHSCH FRESENIUS,DEPT TRACE ANAL,W-6200 WIESBADEN,GERMANY

来源：

ENERGY & FUELS | 1992年 / 6卷 / 06期

关键词：

D O I：

10.1021/ef00036a002

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：

The examination of the structural characteristics of the substances extracted from four coal samples, using N-methyl-2-pyrrolidinone, was carried out by pyrolysis-field ionization mass spectrometry (Py-FIMS). The extracts are complex mixtures of relatively easily distillable components and of larger entities, supposed to be "oligomeric" parts of the coal structure, which are pyrolyzed above 400-degrees-C with the production of hydroxylated derivatives. Polycondensed structures predominate (4 to 7-8 nuclei) in a wide range of m/z values, mainly 250-350. This work can serve as a basis for further studies on the carbonization process of coals and the role of "the extractible phase" in the first stages of the plastic state and the process of coal softening.

引用

页码：694 / 701

页数：8

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