A study of n-alkane type biomarkers in coal

摘要

The isolation of saturated hydrocarbons from free bitumen coal and also from bound bitumen coal in the region of Kosovo is descriled in this study. n-Alkanes from C17-C21 to C33-C35, with A7-C29 being dominant, were identified by gaschromatographic analysis of the free bitumen. This distribution indicated the terrestrial origin of the coals and a low level of carbonification. The decreasing values of the CPI of the bound bitumen (1.08-2.77), composed to the CPI values of the free bitumen (2,04-3,90) and a shift of the dominant n-alkane (A7-C29 -> A7-C23) are a result of the higher "maturity" level of the n-alkanes in bound bitumen.