Aggregation study of asphaltenes from colombian Castilla crude oil using molecular simulation
Fuente:
Redalyc
Salvato in:
| Autore principale: | |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad de Antioquia
2015
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1876443337448226816 |
|---|---|
| author | Jennifer de León-Barreneche |
| author_facet | Jennifer de León-Barreneche |
| contents | Aggregation study of asphaltenes from colombian Castilla crude oil using molecular simulation Jennifer de León-Barreneche Bibian Alonso Hoyos-Madrigal Wilson Antonio Cañas-Marín Ingeniería Asphaltene molecular simulation solubility parameter aggregation energies A molecular simulation model to study the mechanism for asphaltene aggregation is presented. Four species were selected, obtained from structural analysis of asphaltenes from the oil extracted from Castilla oil fi eld, in Colombia. Energetic contributions to the aggregation process for each species were studied, and the solubility parameter was evaluated. Finally, the aggregation process between different species was studied in order to determine the tendency of the molecules towards self-association. Results show that for all species, aggregation state is energetically favorable; also, both Van der Waals interactions and electrostatic forces contribute equally to the aggregation process. It was also found that the molecular structure of the substances has a big infl uence on the manner in which asphaltenes aggregate. For continental structures, long ramifi cations cause a physical obstacle for aggregation. On the other hand, the molecular fl exibility associated with archipelago structures enables the aggregation with other species, but somehow hinders the process of self-association. The solubility parameter for all four substances was within the range established by literature. 2015 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43043372003 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.77 |
| format | Artículo científico |
| id | redalyc_43043372003 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidad de Antioquia |
| spellingShingle | Aggregation study of asphaltenes from colombian Castilla crude oil using molecular simulation Jennifer de León-Barreneche Ingeniería Asphaltene molecular simulation solubility parameter aggregation energies Aggregation study of asphaltenes from colombian Castilla crude oil using molecular simulation Jennifer de León-Barreneche Bibian Alonso Hoyos-Madrigal Wilson Antonio Cañas-Marín Ingeniería Asphaltene molecular simulation solubility parameter aggregation energies A molecular simulation model to study the mechanism for asphaltene aggregation is presented. Four species were selected, obtained from structural analysis of asphaltenes from the oil extracted from Castilla oil fi eld, in Colombia. Energetic contributions to the aggregation process for each species were studied, and the solubility parameter was evaluated. Finally, the aggregation process between different species was studied in order to determine the tendency of the molecules towards self-association. Results show that for all species, aggregation state is energetically favorable; also, both Van der Waals interactions and electrostatic forces contribute equally to the aggregation process. It was also found that the molecular structure of the substances has a big infl uence on the manner in which asphaltenes aggregate. For continental structures, long ramifi cations cause a physical obstacle for aggregation. On the other hand, the molecular fl exibility associated with archipelago structures enables the aggregation with other species, but somehow hinders the process of self-association. The solubility parameter for all four substances was within the range established by literature. 2015 artículo científico 0120-6230 https://www.redalyc.org/articulo.oa?id=43043372003 en http://www.redalyc.org/revista.oa?id=430 Revista Facultad de Ingeniería Universidad de Antioquia application/pdf Universidad de Antioquia Revista Facultad de Ingeniería Universidad de Antioquia (Colombia) Num.77 |
| title | Aggregation study of asphaltenes from colombian Castilla crude oil using molecular simulation |
| topic | Ingeniería Asphaltene molecular simulation solubility parameter aggregation energies |
| url | https://www.redalyc.org/articulo.oa?id=43043372003 |