Solubility parameters of bitumen-derived narrow vacuum resid fractions (Record no. 169595)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02373nab a2200205 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2009 xxu |
| 245 00 - TITULO | |
| Título | Solubility parameters of bitumen-derived narrow vacuum resid fractions |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | ene. 2009 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 15/05/2009 ; 17/04/2009 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 5 p. ; 386-391 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resúmen publicado por el autor: Narrow fractions of Athabasca vacuum topped bitumen (VTB) were prepared by supercritical fluid extraction and fractionation (SFEF) and characterized. Phase equilibria of various narrow fractions in the propane system were determined using a high-pressure PVT unit, operating at 30-50 °C, 4-6 MPa, and solvent/oil (S/O) ratio of 1.5 to 5 (wt/wt). Solubility parameters were determined using the activity coefficient equation from Scathard-Hildebrand’s regular solution theory. The value of the solubility parameter of the VTB fraction was obtained by extrapolation of the Gaussian function at the S/O ratio approaching zero. It was found that the solubility parameter of the VTB fraction was not constant, varying from 14 to 16 MPa1/2. The solubility parameter exhibited a Gaussian distribution as a function of the S/O ratio, with a maximum at the S/O ratio of 3.25, and a parabolic function of pressure, with a maximum at 5 MPa. It decreased with temperature. As the VTB fraction becomes heavier, the solubility parameter of the VTB fraction and the maximum value of the solubility parameter increased. The solubility parameter of the VTB end-cut (primarily C5-insoluble asphaltenes) was obtained using a modified titration method by varying the composition of a pentane/toluene blend solvent. The correlation of the solubility parameter of the VTB fraction was derived as a function of various key feedstock properties. The measured solubility parameters of narrow VTB fractions were compared to predictions from five published models. The results showed that the published models overestimate solubility parameters of the VTB fractions. In some cases, the trend of predictions was inconsistent. |
| 773 0# - CORRECCIÓN | |
| Título | Energy & fuels |
| Partes relacionadas | 23 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Wang, Xingyi |
| 9 (RLIN) | 40937 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Xu, Zhiming |
| 9 (RLIN) | 26204 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Zhao, Suoqi |
| 9 (RLIN) | 26203 |
| 856 ## - LINK | |
| Link | <a href="http://pubs.acs.org/doi/full/10.1021/ef800697f">http://pubs.acs.org/doi/full/10.1021/ef800697f</a> |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca virtual | Biblioteca virtual | 05/03/2026 | 200044398 | 200044398 | 05/03/2026 | Artículo de Revista |
