Proceedings of the 1986 International Congress on Renewable Energy Sources. Pyrolysis mechanisms during coal hydrogasification. International Congress on Renewable Energy Sources [18-23 Mayo 1986, Madrid].

Consejo Superior de Investigaciones Científicas.
Terol, S., ed. Cypres, R.

1987

V.1
1113
CIENA

84-00-6673-1

Studies of pyrolysis mechanisms on pure compounds are needed to know post-cracking behaviour of primary oils under different experimental conditions. Thermal post-cracking is of importance in hydropyrolysis under pressure. Cracking of pure compounds labelled in specific positions by 14C and 3H coupled with radiochromatography, was developed. This technique permits, by measuring the radioactivity of the cracking products, to determine which C or H atom of the starting molecule, contributes to the formation of the different product molecules. Results are presented on the sulfur fate of heterocyclic compounds during pyrolysis and hydropyrolysis, on mechanism of dehydroxylation and ring opening in phenol craking, on formation of light monocyclic aromatics from polycyclic hydro-and perhydroaromatics. The conclusions of these mechanistical studies with radioactive pure compounds are that this method gives wide informations on the pyrolytic behaviour of primary compounds subjected to post-cracking reactions during the processes of coal gasification. ABSTRACT. INTRODUCTION. ANALYTICAL METHODS. CRACKING OF LABELLED PHENOLS. CRACKING OF PERHYDROPHENANTHRENE (P.H.P). CRACKING OF BENZOTHIOPHENE. CONCLUSIONS. ACKNOWLEDGEMENTS. REFERENCES.

Presenta tbls. y gráfs.

GENERAL; COMBUSTIBLES SINTETICOS; PIROLISIS; CARBON; GASIFICACION; ANALISIS QUIMICO; EXPERIMENTOS;