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http://hdl.handle.net/11452/23956| Title: | Analytical information on the asphaltenes from a few standard characterization techniques |
| Authors: | Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Anabilim Dalı. Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Anabilim Dalı. Peksöz, Ahmet Akay, Sertan Kemal Kaya, Yunus Ovalıoǧlu, Hüseyin Kaynak, Gökay Yalçıner, Aytaç AAG-9772-2021 R-7260-2016 23100976500 24801954600 35181446100 24460278400 12042075600 14055078800 |
| Keywords: | Energy & fuels Engineering Environmental sciences & ecology Asphaltene Dynamic nuclear polarization Electron double-resonance Spectroscopy Suspensions Crude oil Free radicals Infrared spectroscopy Magnetic fields Organic solvents Spin polarization Structural properties Asphalt cements Characterization techniques Dynamic nuclear polarization Elemental compositions EPR Frequency dependence FTIR Line shape Low magnetic fields SEM Asphaltenes |
| Issue Date: | Jan-2011 |
| Publisher: | Taylor & Francis |
| Citation: | Peksöz, A. vd. (2011). "Analytical information on the asphaltenes from a few standard characterization techniques". Energy Sources, Part A-Recovery, Utilization and Environmental Effects, 33(15), 1474-1481. |
| Abstract: | The asphaltene has been obtained from asphalt cement with penetration grade 60, which is extracted from crude Libya petroleum. The elemental composition and some structural properties of the asphaltene samples are determined by various methods, such as SEM, infrared spectroscopy, and X-ray analysis. Some experiments are performed on (1)H dynamic nuclear polarization (DNP) in a number of asphaltene suspensions in organic solvents. The frequency dependence of the DNP enhancement under conditions of weak EPR saturation in a low magnetic field is obtained and interpreted as the EPR line shape of some free radicals present in the samples. |
| URI: | https://doi.org/10.1080/15567030903397909 https://www.tandfonline.com/doi/full/10.1080/15567030903397909 http://hdl.handle.net/11452/23956 |
| ISSN: | 1556-7036 |
| Appears in Collections: | Scopus Web of Science |
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