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2012
DOI: 10.2516/ogst/2011150
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Overview and Computational Approach for Studying the Physicochemical Characterization of High-Boiling-Point Petroleum Fractions (350°C+)

Abstract: Résumé -Approche informatique pour l'étude des propriétés physico-chimiques de fraction pétrolière lourde (350 °C + ) -Le traitement et la valorisation des fractions pétrolières lourdes nécessitent une étude très détaillée dans la mesure où le pétrole contient un très grand nombre de composants différents (paraffines, oléfines, naphtènes, arômes). Afin de caractériser les fractions, il est indispensable de déterminer les propriétés thermodynamiques et thermophysiques des différents éléments. Ce travail présent… Show more

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Cited by 11 publications
(11 citation statements)
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“…For calculation accuracy, the best choice is to use thermodynamic and transport properties measured by experiment for comparison with those of the selected components. However, because it is difficult to measure thermodynamic and transport properties, some predictive methods for the basic properties of the pseudocomponents were employed . Although this is a compromise solution, compared with the pseudocomponent method, this approach allows the thermodynamic and transport properties of the real component to be easily obtained, which further simplifies the calculation process and gives similar results.…”
Section: Mathematical Modelmentioning
confidence: 99%
“…For calculation accuracy, the best choice is to use thermodynamic and transport properties measured by experiment for comparison with those of the selected components. However, because it is difficult to measure thermodynamic and transport properties, some predictive methods for the basic properties of the pseudocomponents were employed . Although this is a compromise solution, compared with the pseudocomponent method, this approach allows the thermodynamic and transport properties of the real component to be easily obtained, which further simplifies the calculation process and gives similar results.…”
Section: Mathematical Modelmentioning
confidence: 99%
“…The BP curves were obtained in the Petrobras Research and Development Center (CENPES-Brazil) (Table 4). In order to characterize the fluid properties (Tables 5 -6), the ATR-W, ATR-Y and ATR-Z were modeled as in previous physicochemical studies [64]. Table 6.…”
Section: Chemical Systems: High-boiling-point Petroleum Fractionsmentioning
confidence: 99%
“…Table 6. Basic properties of each pseudocomponent [64]. Finally, considering just the liquid film on the wall of the evaporator surface, the values for MFP (Equations 1 -3), the Kn (Equation 4) and G E (Equations 6 -9) for the 25 pseudocomponents from the high-boiling-point petroleum fractions under the different operating conditions (evaporator temperature ranging from 423.15 to 623.15 K and pressure ranging from 0.1 to 1 Pa) were estimated.…”
Section: Chemical Systems: High-boiling-point Petroleum Fractionsmentioning
confidence: 99%
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“…Fonte Ponto de ebulição, densidade, índice de refração, pressão, fator acêntrico, tensão superficial, parâmetro de solubilidade (Riazi e Al-Sahhaf, 1996) Temperatura crítica (Riazi e Al-Sahhaf, 1996;León et al, 2008) Viscosidade (Baltatu et al, 1999;Guo et al, 2001;Tovar et al, 2012) Condutividade térmica (Riazi e Faghri, 1985;Baltatu et al, 1999;Guo et al, 2001;Tovar et al, 2012) Capacidade calorífica (Berkovich et al, 1997; O cálculo de valores de capacidade calorífica e entalpia para óleos crus e suas frações leves e pesadas utilizando calorimetria diferencial de varredura (DSC) foi estudada em trabalhos anteriores (Rajeshwar et al, 1981;Fang et al, 1998;Zanier e Jackle, 1996;Bessières et al, 1999;Merzlyakov e Shick, 2001;Wunderlich et al, 1997), sendo esta técnica uma das mais utilizadas para a caracterização térmica. Por outro lado, em relação à condutividade térmica, Elam et al (1999) propôs um método para determinar dados dessa propriedade para óleos crus com compostos altamente aromáticos e parafínicos.…”
Section: Propriedadeunclassified