Hydro-treating of asphaltenes in supercritical toluene with MgO-supported Fe, Ni, NiMo, and CoMo catalysts (Record no. 171028)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02118nab a2200205 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2009 xxu |
| 245 00 - TITULO | |
| Título | Hydro-treating of asphaltenes in supercritical toluene with MgO-supported Fe, Ni, NiMo, and CoMo catalysts |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | jul./ago. 2009 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 15/06/2010 ; 15/06/2010 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 7 p. ; 3645-3651 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumen del autor. For the first time, the AVTB-derived asphaltenes (containing very high concentrations of sulfur (7.70 wt % S) and nitrogen (1.08 wt % N)) were hydrotreated over novel MgO-supported Fe, Ni, NiMo, and CoMo catalysts in supercritical toluene at 380 °C under hydrogen of 5 MPa (cold pressure) in a batch reactor. The supercritical toluene alone without any catalyst was found to be effective for conversion of the highly aromatic asphaltenes (AS) to less aromatic maltenes (MA) through a thermal cracking mechanism. All the MgO-supported catalysts proved to be effective for hydro-conversion of AS to MA in supercritical toluene. The activities of these catalysts for AS conversion showed the order of sequence of Fe/MgO < Ni/MgO < CoMo/MgO < NiMo/MgO. Among all the MgO-supported catalysts tested, NiMo/MgO was found to be the most active one for promoting the removal of sulfur and AS. The sulfur/nitrogen/AS removal efficiencies for the NiMo/MgO catalyst increased with the treatment time, and the efficiencies at 120 min of treatment attained as high as 43%, 30%, and 70%, respectively. The MgO-supported catalysts showed excellent performance for preventing and retarding the formation of highly condensed aromatics or coke in the hydro-treatment of AS in supercritical toluene. With the presence of NiMo/MgO catalyst, hydro-treating AS in the supercritical toluene for a reaction time up to 120 min produced a strikingly low yield (<0.7%) of toluene-insoluble product. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 4 |
| 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 | Xu, Chumbao (Charles) |
| 9 (RLIN) | 42667 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Su, Huasu |
| 9 (RLIN) | 42668 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Ghosh, Mainak |
| 9 (RLIN) | 42669 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca Alejandro Angel Bulgheroni | Biblioteca Alejandro Angel Bulgheroni | 05/03/2026 | 200045886 | 200045886 | 05/03/2026 | Artículo de Revista |
