Structural characterization of asphaltenes obtained from hydroprocessed crude oils by SEM and TEM (Record no. 169602)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 01799nab a2200205 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2009 xxu |
| 245 00 - TITULO | |
| Título | Structural characterization of asphaltenes obtained from hydroprocessed crude oils by SEM and TEM |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | ene. 2009 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 15/05/2009 ; 20/04/2009 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 10 p. ; 429-439 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resúmen publicado por el autor: Asphaltenes from Maya crude and its hydroprocessed oils at different reaction conditions were precipitated and studied by scanning and transmission electron microscopy (SEM and TEM). In order to better understand the changes occured in asphaltene structure during hydroprocessing the crude oil fractionation procedure with solvents was used to separate asphaltenes based on their solubility properties. Different asphaltene morphologies were observed depending on the mixture of solvents used for fractionating asphaltenes and reaction conditions at which crude oil was hydroprocessed. A comparison between asphaltenes from hydroprocessed and pure Maya crude oil was carried out on the way to distinguish morphological changes at microscopic level. It was observed that removal of alkyl chains during hydroprocessing makes asphaltenes suffer a rearrangement in solid state favoring stacking of aromatic cores as determined by TEM. SEM microscopy allowed different fractions of asphaltenes for seeing that they are constituted by agglomerate particles, porous structures, and smooth surfaces. |
| 773 0# - CORRECCIÓN | |
| Título | Energy & fuels |
| Partes relacionadas | 23 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Trejo, Fernando |
| 9 (RLIN) | 40953 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Ancheyta, Jorge |
| 9 (RLIN) | 38129 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Rana, Mohan S. |
| 9 (RLIN) | 40954 |
| 856 ## - LINK | |
| Link | <a href="http://pubs.acs.org/doi/full/10.1021/ef8005405">http://pubs.acs.org/doi/full/10.1021/ef8005405</a> |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca virtual | Biblioteca virtual | 05/03/2026 | 200044405 | 200044405 | 05/03/2026 | Artículo de Revista |
