| Journal: | Brazilian journal of chemical engineering |
| Database: | PERIÓDICA |
| System number: | 000308917 |
| ISSN: | 0104-6632 |
| Authors: | Rajagopal, K1 Silva, S.M.C |
| Institutions: | 1Universidade Federal do Rio de Janeiro, Escola de Quimica, Rio de Janeiro. Brasil |
| Year: | 2004 |
| Season: | Dic |
| Volumen: | 21 |
| Number: | 4 |
| Pages: | 601-609 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The particle size of asphaltene flocculates has been the subject of many recent studies because of its importance in the control of deposition in petroleum production and processing. We measured the size of asphaltene flocculates in toluene and toluene - n-heptane mixtures, using the light-scattering technique. The asphaltenes had been extracted from Brazilian oil from the Campos Basin, according to British Standards Method IP-143/82. The asphaltene concentration in solution ranged between 10-6 g/ml and 10-7 g/ml. Sizes was measured for a period of about 10000 minutes at a constant temperature of 20°C. We found that the average size of the particles remained constant with time and increase with an increase in amount of n-heptane. The correlation obtained for size with concentration will be useful in asphaltene precipitation models |
| Disciplines: | Química, Ingeniería |
| Keyword: | Ingeniería petrolera, Ingeniería química, Asfaltenos, Tamaño de partícula, N-heptano-tolueno, Dispersión de luz |
| Keyword: | Chemistry, Engineering, Chemical engineering, Petroleum engineering, Asphaltene, Particle size, N-heptane-toluene, Light scattering |
| Full text: | Texto completo (Ver HTML) |
