PRODUCTION OF N-ALKANES AND POLYCYCLIC AROMATIC-HYDROCARBONS IN COAL PYROLYSIS

Pyrolysis in combination with gas chromatographic separation and mass spectrometry detection is a useful tecnique for following the compound s which are produced in coal pyrolysis. Two families of compounds, lin ear hydrocarbons and polycyclic aromatic hydrocarbons (PAHs) were foll owed with a single-ion monitoried program in order to enhance the dete ction limit of the method. A complete study of these two families of c ompounds and the pyrolysis temperature was carried out. Some conclusio ns were obtained about production at different temperatures by making comparisons between the experiments. (C) 1997 Elsevier Science B.V.