Pyrolysis of Bitumen

Data calculated from that for composite synthetic crude obtained after coking and Unifining of extracted bitumen, from Bachman and Stormont [2]. Before Unifining (hydrogenation) mean density of the composite stream would be somewhat higher, and sulfur content would be about 3%. Proportions of distillate components are approximate carbon content quoted is the coke residue on pyrolysis of bitumen. 

The software DSCASTMKin vl.OO (DuPont) supplies the following information, which is shown as plots of the pyrolysis of bitumen B80 ... 

Fig. 4-184 DSC Pyrolysis of Bitumen B80 Heat Flow versus Temperature Parameter Heating Rate P Atmosphere Argon 5 cm /min...

Fig. 4-185 DSC Pyrolysis of Bitumen B80 log Heating Rate versus 1 000/T Kinetics according ASTM E 698-79...

Fig. 4-186 DSC Pyrolysis of Bitumen B80 Data File Summary (File)...

This method is based on the evaluation of the curves of at least three TGA experiments at different heating rates. Fig. 4-196 shows the plot of the pyrolysis of bitumen B 80 at a heating rate = 10 K/min. There is only a small difference between the DTA and DTG maximum temperatures within the limits of the method. At peak maximum the conversion is still incomplete and amoimts to only 57 % whereas the total conversion is 80 %. 

Fig. 4-206 Pyrolysis of Bitumen B80 STA Diagram TGA Heating Rate 10 K/min Atmosphere Argon 30 + 20 cm /min Kinetics according McCarty and Green Integration Limits 250 °C and 520 °C...

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