Abstract
Thermogravimetry (TG) and Fourier transform infrared (FTIR) spectroscopy have been used to study the pyrolysis behaviour and oxidative reactivity of molten caustic-treated and untreated oil sand cokes. The Syncrude fluid coke gave higher levels of CO/CO2 during pyrolysis than Suncor delayed coke and CH4 was only observed with the former. However, the CO/CO2 evolution during pyrolysis of the caustic-treated coke residues was determined to be similar and higher than the values obtained with the untreated fluid coke. This is attributed to the displacement of sulphur in the coke matrix by oxygen dating molten caustic leaching. The oxidation reactivity of the coke residues was found to increase with caustic treatment. This increase is attributed to the increased surface area of the cokes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
