Deposition form wax-solvent mixtures under turbulent flow: effects of shear and time on deposit properties (Record no. 170270)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02081nab a2200181 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2009 xxu |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Tiwary, Ravindra |
| 9 (RLIN) | 41750 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Mehrotra, Anil K. |
| 9 (RLIN) | 41751 |
| 245 00 - TITULO | |
| Título | Deposition form wax-solvent mixtures under turbulent flow: effects of shear and time on deposit properties |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Fecha de publicación, distribución, etc. | mar./abr. 2009 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 2009-08-07 ; 2009-08-07 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 12 p. ; 1299-1310 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Resúmen del autor: A bench-scale flow-loop apparatus, incorporating a double-pipe heat exchanger, was used for investigating the effects of shear rate and deposition time on the deposition of solids, under turbulent flow, from solutions of a multicomponent wax in a paraffinic solvent. The deposit-layer thickness was found to decrease with an increase in the Reynolds number (or shear rate), while it increased asymptotically with the deposition time. Calculations with a steady-state heat-transfer model showed the liquid-deposit interface temperature to be equal to the wax appearance temperature (WAT) and the deposit average thermal conductivity to be 0.35 W m-1 K-1. Gas chromatography (GC) analyses of deposit samples showed significant changes in the carbon number distribution with shear rate and time. A recently proposed model, involving one-dimensional shear deformation of a cubical cage, was used to express changes in the deposit composition, via the deformation angle (ß), as a function of the Reynolds number and deposition time. The time-dependent variations in deposit composition were expressed with a viscoplastic model, in which Reynolds number (or shear rate) influences the initial deposit properties. The proposed viscoplastic model affords a new explanation for the deposit aging phenomenon. The deposition from "waxy" mixtures was confirmed to be primarily a thermally driven process, in which the shear rate and deposition time play important roles by influencing the deposit properties. |
| 773 0# - CORRECCIÓN | |
| Título | Energy & fuels |
| Partes relacionadas | 23 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| Fuente de clasificación | Dewey Decimal Classification |
| 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 | 200045097 | 200045097 | 05/03/2026 | Artículo de Revista |
