Applying the PR-EoS to asphaltene precipitation from n-Alkane diluted heavy oils and bitumens (Record no. 179745)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02132nab a2200229 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s xxu |
| 245 00 - TITULO | |
| Título | Applying the PR-EoS to asphaltene precipitation from n-Alkane diluted heavy oils and bitumens |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 04/12/2008 ; 21/06/2006 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 10 p. |
| 520 ## - RESUMEN, ETC | |
| Resumen | TRANSCRIPCIÓN DEL RESUMEN PUBLICADO POR EL AUTOR: The Peng-Robinson equation of state (EoS) was adapted using group contribution methods to model asphaltene precipitation from solutions of toluene and an n-alkane and from n-alkane diluted bitumens. A liquid-liquid equilibrium was assumed between a primary liquid phase and a second dense asphaltene phase. Bitumen was characterized in terms of solubility fractions: saturates, aromatics, resins, and asphaltenes. Critical properties of the saturates, aromatics, and resins were determined that fit their measured densities and compared well with existing critical property correlations. The saturate and aromatic critical properties were also tuned to fit asphaltene precipitation data from solutions of the saturate and toluene or the aromatic and heptane. Asphaltenes were divided into fractions of different molar masses using a gamma distribution function. EoS parameters for asphaltenes were determined that fit the measured densities, fit precipitation data for mixtures of asphaltenes, toluene, and heptane, and compared well with existing critical property correlations. The model successfully fitted and predicted the onset and amount of precipitation over a broad range of compositions, temperatures from 0 to 100 °C, and pressures up to 7 MPa. The model results were within the error of the measurements except for high dilutions with n-pentane. |
| 773 0# - CORRECCIÓN | |
| Título | Energy & fuels |
| Partes relacionadas | Vol. 20, no. 2 (mar./abr. 2006) ; p. 625-634 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Sabbagh, O. |
| 9 (RLIN) | 48660 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Akbarzadeh, K. |
| 9 (RLIN) | 19048 |
| 650 #0 - MATERIA | |
| Término tópico | Precipitación |
| 9 (RLIN) | 28052 |
| 650 #0 - MATERIA | |
| Término tópico | Asfaltenos |
| 9 (RLIN) | 20433 |
| 650 #0 - MATERIA | |
| Término tópico | Petróleos pesados |
| 9 (RLIN) | 22736 |
| 650 #0 - MATERIA | |
| Término tópico | Bitúmenes |
| 9 (RLIN) | 1580 |
| 700 1# - OTRA AUTORIDAD PERSONAL | |
| Nombre | Akbarzadeh, K. |
| 9 (RLIN) | 19048 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca Alejandro Angel Bulgheroni | Biblioteca Alejandro Angel Bulgheroni | 05/03/2026 | 200039409 | 200039409 | 05/03/2026 | Artículo de Revista |
