Prediction of Viscosity for Characterized Oils and Their Fractions Using the Expanded Fluid Model
| Autor: | Marco A. Satyro, Shawn David Taylor, Harvey W. Yarranton, Robert A. Marriott, F. Ramos-Pallares |
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| Rok vydání: | 2016 |
| Předmět: |
Chemistry
020209 energy General Chemical Engineering Single component Energy Engineering and Power Technology Thermodynamics Fraction (chemistry) 02 engineering and technology law.invention Physics::Fluid Dynamics Viscosity Fuel Technology 020401 chemical engineering law Low temperature combustion 0202 electrical engineering electronic engineering information engineering Compressibility 0204 chemical engineering Distillation Asphaltene |
| Zdroj: | Energy & Fuels. 30:7134-7157 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.6b01419 |
| Popis: | A methodology has been developed to predict the viscosity of crude oils and their fractions from a distillation-based oil characterization. The maltenes were characterized as a set of pseudo-components with properties determined from established generalized correlations. The asphaltene fraction was characterized as a single component and its properties were measured. The viscosities of the pseudo-components, asphaltenes, whole oils, and their fractions were determined with the Expanded Fluid (EF) viscosity model. The inputs for the model are the pressure, the density of the fluid at a given pressure and temperature, the dilute gas viscosity calculated from established generalized correlations, and three fluid-specific parameters: c2, ρs°, and c3. Densities were calculated using the modified Rackett correlation with the Tait-COSTALD compressibility correction. The c3 parameter was determined from a previously developed correlation. New correlations were developed for the c2 and ρs° parameters of the malten... |
| Databáze: | OpenAIRE |
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