Competitive HDS and HDN reactions over NiMoS/HMS-Al catalysts: Diminishing of the inhibition of HDS reaction by support modification with P
[EN] The effect of the support (Al-HMS) modification with P between (0.0-2.0 wt.%) was studied in this work. NiMo/Al-HMS-P(x) catalysts were prepared and sulfided in order to be tested in the hydrodesulfurizarion (HDS) reaction of dibenzothiophene (DBT), hydrodenitrogenation (HDN) of carbazole and s...
| Authors: | , , , , , , |
|---|---|
| Format: | article |
| Status: | Versión aceptada para publicación |
| Publication Date: | 2015 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/227353 |
| Online Access: | http://hdl.handle.net/10261/227353 |
| Access Level: | Open access |
| Keyword: | Ultra-low sulfur Hydrodesulfurization HDS DBT Hydrodenitrogenation HDN Carbazole HMS NiMoS Dibenzothiophene Mesoporous catalysts |
| Summary: | [EN] The effect of the support (Al-HMS) modification with P between (0.0-2.0 wt.%) was studied in this work. NiMo/Al-HMS-P(x) catalysts were prepared and sulfided in order to be tested in the hydrodesulfurizarion (HDS) reaction of dibenzothiophene (DBT), hydrodenitrogenation (HDN) of carbazole and simultaneous HDS and HDN reactions. The materials were characterized by X-ray diffraction (XRD), FT-IR of framework vibration (FTIR-KBr), Micro-Raman spectroscopy, temperature programmed adsorption of ammonia (TPD-NH3), N2 adsorption–desorption isotherms and X-ray photoelectron spectroscopy. For both, individual HDS and HDN reactions, all P-containing catalysts have shown a higher activity with respect to P-free sample. The catalyst modified with optimized amount of P (1 wt.%) promoted DBT transformation via HYD route of this reaction. Due to the important HYD properties, the NiMo/Al-HMS-P1.0 sample showed the lower inhibition factor during simultaneous HDS and HDN. |
|---|