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Rheological Evidence of the Diffusionnal Aggregation of Asphaltenes in Extra-Heavy Crude Oils

✍ Scribed by Meyer, Vincent; Pilliez, Jonathan; Habas, Jean-Pierre; Montel, François; Creux, Patrice

Book ID
127241862
Publisher
American Chemical Society
Year
2008
Tongue
English
Weight
462 KB
Volume
22
Category
Article
ISSN
0887-0624

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✍ Latif H. Ali; Khalid A. Al-Ghannam; Jasim M. Al-Rawi 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 299 KB

H and 13C n.m.r. spectra of asphaltenes separated from a heavy crude oil using n-pentane at different temperatures were measured. Average molecular parameters and hypothetical structural models for these asphaltenes were proposed using n.m.r. measurements, calculated molecular weight of unit sheets