Pyrolysis-gas chromatography-mass spectrometry of tricyclic hydroaromatic compounds from coal hydrogenates |
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| Authors: | C Braekman-Danheux |
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| Institution: | Université Libre de Bruxelles, Faculté des Sciences Appliquées Service de Chimie Générale et Carbochimie, 50, avenue F.D. Roosevelt, 1050 Bruxelles Belgium |
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| Abstract: | Pyrolysis—gas chromatography—mass spectrometry of perhydrophenanthrene, perhydroanthracene and 9,10-dihydrophenanthrene was carried out between 700 and 1000°C in order to study their conversion into light aromatics. The results show that the total hydrogenation of the rings has a great influence on the yields of monoaromatics, obtained by cleavage of the rings and recombination of the fragments. The partially hydrogenated compounds undergo a dehydrogenation reaction, leading back to the stable polycyclic aromatic. |
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