Molybdenum-based catalysts for upgrading light naphtha linear hydrocarbon compounds (Record no. 170812)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02248nab a2200205 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2009 xxu |
| 245 00 - TITULO | |
| Título | Molybdenum-based catalysts for upgrading light naphtha linear hydrocarbon compounds |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | nov./dic. 2009 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 09/06/2010 ; 09/06/2010 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 6 p. ; 5737-5742 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumen del autor. Controlled reduction by hydrogen of an equivalent of 5 monolayers of MoO3 deposited on TiO2 enabled the reduction of the upper 2-3 monolayers of MoO3 to MoO2 with a bifunctional MoO2-x(OH)y phase on the outermost surface layer. Hydroisomerization reactions of linear C5-C7 hydrocarbons, present either as a pure phase or as a mixture, on this molybdenum bifunctional phase produce branched species of relatively high octane numbers, as compared to reactant molecules. Bench-scale catalytic experiments that were comparable to industrial conditions were conducted using 15 g of catalyst under a hydrogen pressure of 5 bar, a hydrogen flow rate of 30 SLPH, a liquid hourly space velocity (LHSV) of 0.8 h-1, and a reaction temperature of 623 K. Time-on-stream experiments for several days showed no changes in neither the conversion nor the isomerization selectivity. The stability and resistance of the catalytic system toward poisoning by hydrocarbon species, water, and sulfur- and nitrogen-containing compounds is attributed to the moderate strength of the (metal-acid) functions and to the fact that individual Mo atoms are present in alignment positions placed along the c-axis of the deformed rutile structure of MoO2 phase. This particular surface configuration enabled one to perform hydroisomerization reactions of n-heptane under the aforementioned experimental conditions, in contrast to platinum-based catalysts, in which hydrocracking reactions of n-heptane were observed. Possible replacement of the platinum-based catalysts by the bifunctional MoO2-x(OH)y catalyst at the industrial level is under consideration. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 6 |
| 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 | Al-Kandari, H. |
| 9 (RLIN) | 42333 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Al-Kandari, S. |
| 9 (RLIN) | 42334 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Al-Kharafi, F. |
| 9 (RLIN) | 42335 |
| 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 | 200045666 | 200045666 | 05/03/2026 | Artículo de Revista |
