Determination of wax appearance temperature (WAT) in paraffin/solvent systems by photoelectric signal and viscosimetry
The wax appearance temperature (WAT) is the temperature at which the first wax crystals start to form, on cooling of paraffin/solvent systems. There are a number of different WAT determination methods, including: density and viscosity variation, differential scanning calorimetry, laser dispersion, a...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Norte (UFRN) |
| Repositorio: | Repositório Institucional da UFRN |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.ufrn.br:123456789/45112 |
| Acceso en línea: | https://repositorio.ufrn.br/handle/123456789/45112 |
| Access Level: | acceso abierto |
| Palabra clave: | Paraffin Prystallization WAT Photoelectric method Viscosity |
| Sumario: | The wax appearance temperature (WAT) is the temperature at which the first wax crystals start to form, on cooling of paraffin/solvent systems. There are a number of different WAT determination methods, including: density and viscosity variation, differential scanning calorimetry, laser dispersion, and chromatography. The photoelectric method is used in this work based on the principle that the appearance of wax crystals modifies the transparency of the system. A comparison was made between WAT results obtained by photoelectric signals and viscosimetry. It was observed that the WAT results obtained by photoelectric signals are anticipated when compared with the viscosimetry data, demonstrating the enhanced sensitivity of the developed method |
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