Distribution of Paraffin Hydrocarbons and Asphaltenes in Acidic Water-Oil Emulsion
| Autor: | L. F. Davletshina, E. S. Okhotnikova, I. A. Gus’kova, Yu. M. Ganeeva, T. N. Yusupova, E. E. Barskaya |
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| Rok vydání: | 2018 |
| Předmět: |
Chemistry
020209 energy General Chemical Engineering Mixing (process engineering) Energy Engineering and Power Technology 02 engineering and technology General Chemistry Calorimetry law.invention Paramagnetism chemistry.chemical_compound Fuel Technology Geochemistry and Petrology law Elemental analysis Emulsion 0202 electrical engineering electronic engineering information engineering Petroleum Electron paramagnetic resonance Asphaltene Nuclear chemistry |
| Zdroj: | Petroleum Chemistry. 58:1099-1106 |
| ISSN: | 1555-6239 0965-5441 |
| DOI: | 10.1134/s0965544118100055 |
| Popis: | Asphaltenes and solid paraffins isolated from various layers of acidic water-oil emulsions obtained by mixing an oilfield emulsion with 15% solutions of hydrochloric and sulfamic acids with or without addition of Fe(III) have been studied by elemental analysis, IR and EPR spectroscopy, gas–liquid chromatography, and calorimetry. In acidic water-oil emulsions, the high-molecular-weight petroleum components have not been found to concentrate at the oil/water interface; however, a change in their composition has been revealed, which is more pronounced in the presence of Fe(III). The formation of diamagnetic complexes of the paramagnetic centers of asphaltenes with Fe(III) has been detected. |
| Databáze: | OpenAIRE |
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