Tricritical phenomena in asphaltene/aromatic hydrocarbon systems
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| Format: | Artículo científico |
| Sprache: | en |
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Sociedad Mexicana de Física A.C.
2013
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| author | J. H. Pacheco-Sánchez |
| author_facet | J. H. Pacheco-Sánchez |
| contents | Tricritical phenomena in asphaltene/aromatic hydrocarbon systems J. H. Pacheco-Sánchez G. Ali Mansoori Física, Astronomía y Matemáticas Asphaltene aromatic systems phase separation micellar solutions tricritical points The calculation of phase behavior performed for asphaltene-micelles systems that assume several forms when they are mixed with petroleum fluid depending on its aromaticity, and on the relative sizes and polarities of the particles present in such fluid mixtures, is extended to tricritical phenomena. Asphaltene monomers form micelles in the presence of excess amounts of aromatic hydrocarbons and polar solvents, and they are dispersed in a petroleum fluid. The coupling between the micellization and phase separation may, in principle, lead to a near-tricritical coexistence of a monomer phase and a micellar phase; however, this tricritical phenomenon has not been experimentally observed. In this report, such tricritical phenomenon for asphaltene / aromatic systems is predicted. 2013 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57028306013 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.6 Vol.59 |
| format | Artículo científico |
| id | redalyc_57028306013 |
| institution | Redalyc |
| language | en |
| publishDate | 2013 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Tricritical phenomena in asphaltene/aromatic hydrocarbon systems J. H. Pacheco-Sánchez Física, Astronomía y Matemáticas Asphaltene aromatic systems phase separation micellar solutions tricritical points Tricritical phenomena in asphaltene/aromatic hydrocarbon systems J. H. Pacheco-Sánchez G. Ali Mansoori Física, Astronomía y Matemáticas Asphaltene aromatic systems phase separation micellar solutions tricritical points The calculation of phase behavior performed for asphaltene-micelles systems that assume several forms when they are mixed with petroleum fluid depending on its aromaticity, and on the relative sizes and polarities of the particles present in such fluid mixtures, is extended to tricritical phenomena. Asphaltene monomers form micelles in the presence of excess amounts of aromatic hydrocarbons and polar solvents, and they are dispersed in a petroleum fluid. The coupling between the micellization and phase separation may, in principle, lead to a near-tricritical coexistence of a monomer phase and a micellar phase; however, this tricritical phenomenon has not been experimentally observed. In this report, such tricritical phenomenon for asphaltene / aromatic systems is predicted. 2013 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57028306013 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.6 Vol.59 |
| title | Tricritical phenomena in asphaltene/aromatic hydrocarbon systems |
| topic | Física, Astronomía y Matemáticas Asphaltene aromatic systems phase separation micellar solutions tricritical points |
| url | https://www.redalyc.org/articulo.oa?id=57028306013 |