Ultrapyrolysis of heavy oils

ULTRAPYROLYSIS OF HEAVY OILS REACTION KINETICS AND REACTOR TECHNOLOGY... 

To study the coke formation during ultrapyrolysis of heavy oils, a Model 240 Elemental Analyzer has been employed to analyze the carbon deposited onto the ferromagnetic wire and/or the glass microreactor walls. The influence of temperature and total reaction times on the amount of carbon formed have been studied. The experimental results confirmed that the coke yield increases sharply with temperature and reaction time. However, at the upper boundary of the ultrapyrolytic regime, a maximum coke yield of 17 wt% has been observed at 1000°C with a total reaction time of 1 second. For the same total reaction time, coke yields of 10 wt% and 6.5 wt% have been measured at 900 and 800°C, respectively, sharply decreasing from those values with a decrease in reaction time. Compared to the above values, industrial pyrolysis processes produce very high yields of undesirable coke. 

Ultrapyrolysis of Heavy Oils Reaction Kinetics and Reactor Technoiogy M.P. DudukovU, N. Devanathan 325... 

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