Improved Density Prediction for Mixtures of Native and Refined Heavy Oil with Solvents
| Autor: | D. P. Ortiz, F. F. Schoeggl, J. C. Okafor, M. C. Sánchez-Lemus, Shawn David Taylor, F. G. A. van den Berg, Harvey W. Yarranton |
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| Rok vydání: | 2015 |
| Předmět: |
Chromatography
Atmospheric pressure Chemistry General Chemical Engineering Analytical chemistry Energy Engineering and Power Technology 02 engineering and technology Flory–Huggins solution theory 021001 nanoscience & nanotechnology Toluene law.invention Diesel fuel chemistry.chemical_compound Fuel Technology 020401 chemical engineering Volume (thermodynamics) law 0204 chemical engineering 0210 nano-technology Distillation Naphtha Mass fraction |
| Zdroj: | Energy & Fuels. 29:3052-3063 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.5b00528 |
| Popis: | A correlation was developed to predict the density of mixtures of heavy oil (and other petroleum liquids) and hydrocarbon solvents when the densities of each fluid in the mixture are available. Densities at atmospheric pressure and 293 K were measured for saturates and aromatics (SA) fractions from 10 native, thermo-cracked, and hydrocracked heavy oils all mixed with toluene and n-heptane; distillation cuts from 6 heavy oils mixed with toluene; and mixtures of deasphalted heavy oils with naphtha, diesel, and condensate. Density of mixtures of hydrocarbons and solvents at higher pressures (0.1–10 MPa) and temperatures (298–353 K) were also measured or obtained from the literature. Symmetry versus mass fraction was observed for all of the mixtures, and their densities were fitted with a mixing rule in which excess volumes are quantified with a binary interaction parameter and the density of each mixture component. The excess volume mixing rule fit the data for each mixture with average absolute deviations (... |
| Databáze: | OpenAIRE |
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