Abstract
A numerical model to predict the diffusion and reaction of oxygen in petroleum bitumen films was developed, and compared to experimental data obtained by oxidation of bitumen films at 50°C and atmospheric pressure in the absence of light. Experimental viscosity–depth profiles were obtained by microtoming 3–4mm thick, oxidized, bitumen films at approximately 100μm intervals. Model parameters for the diffusion–oxidation process were obtained by correlating oxygen uptake of bitumen solutions to changes in carbonyl infrared spectral absorption and viscosity. The model developed, predicted the average viscosity in bitumen films after oxidation at 50°C for up to 126days (approximately equivalent to 2years in the field) with an accuracy of ±20%.
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
