Pyrolysis Analysis and Kinetics of Crude Oils |
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Authors: | M V Kök O Karacan |
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Institution: | (1) Department of Petroleum and Natural Gas Engineering, Middle East Technical University, 06531 Ankara, Turkey |
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Abstract: | This research presents the results of an experimental study on the determination of pyrolysis behaviour and kinetics of six
crude oils by differential scanning calorimetry (DSC) and thermogravimetry (TG/DTG). Crude oil pyrolysis indicated two main
temperature ranges where loss of mass was observed. The first region between ambient to 400°C was distillation. The second
region between 400 and 600°C was visbreaking and thermal cracking. Arrhenius-type kinetic model is used to determine the kinetic
parameters of crude oils studied. It was observed that as crude oils gets heavier (°API decreases) cracking activation energy
increases. Activation energy of cracking also show a general trend with asphaltene content.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | crude oil differential scanning calorimetry kinetics pyrolysis thermal analysis thermogravimetry |
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