期刊
FUEL
卷 110, 期 -, 页码 318-321出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2012.10.027
关键词
NMR; SARA; Aromaticity; Correlations
资金
- [IPN-SIP-20111044]
Five crude oils with a wide range of API gravities were characterized by means of nuclear magnetic resonance (H-1 NMR and C-13 NMR) and SARA (saturates, aromatics, resins, and asphaltenes) composition. From NMR analyses, the concentrations of aromatic-hydrogen (H-ar) and aromatic-carbon (C-ar) were obtained, with which the corresponding aromaticity factors F-HA and F-CA were calculated. Aromaticity factors were used to develop correlations to predict the SARA concentration of crude oils. The developed correlations showed good accuracy when comparing experimental and calculated values. (C) 2012 Elsevier Ltd. All rights reserved.
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