Gas chromatographic and mass spectrometric characterization of pyrolysis products of fossil organic matter from localities of the Czech Republic

被引:6
|
作者
Cejka, J
Holy, L
Kribek, B
Sedlacek, V
机构
[1] ECOCHEM, ANALYT CTR, PRAGUE 18223 8, CZECH REPUBLIC
[2] CHARLES UNIV, DEPT GEOCHEM & MINERAL RAW MAT, PRAGUE 12840 2, CZECH REPUBLIC
关键词
GC-MS; pyrolysis; fossil organic matter; thermal maturation;
D O I
10.1135/cccc19961158
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The composition of fossiI organic matter of different origin and thermal maturation was studied based. on the gas chromatographic-mass spectrometric characterization of their pyrolysis products. Increase in the pyrolysis temperature from 300 to 500 degrees C was found to cause the cracking of aliphatic hydrocarbons resulting in a shortening oi the n-alkane chains. High yields of pyrolysis products can be obtained at temperatures above 350 degrees C; the cracking reactions can be suppressed by applying relatively short duration of pyrolysis. The chromatographic patterns then clearly reflect the origin of the organic matter and degree of its thermal maturation in rocks.
引用
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页码:1158 / 1166
页数:9
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