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- Title
Hydrodesulfurization of dibenzothiophene using NiMoWS catalysts supported on Al–Mg and Ti–Mg mixed oxides.
- Authors
Peña-Obeso, Pablo Jahir; Huirache-Acuña, Rafael; Arroyo-Albiter, Manuel; Guevara-Martínez, Santiago José; Leyva, Carolina; Cervantes-Gaxiola, Maritza E.
- Abstract
In this work, two series of trimetallic NiMoW sulfide catalysts supported on Al–Mg(x) and Ti–Mg(x) mixed oxides with different content of MgO (x = 5, 10, 15 and 20 wt.% of MgO) were synthesized. The mixed oxides and catalysts were characterized by X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy, N2 physisorption and Diffuse reflectance spectroscopy (DRS UV–Vis); and evaluated during the hydrodesulfurization (HDS) of dibenzothiophene (DBT) reaction. The NiMoW/Al–Mg catalysts showed a higher dispersion of Ni, Mo and W species than NiMoW/Ti–Mg catalysts resulting in higher catalytic activities. Catalysts with 10 wt.% of MgO showed the highest catalytic activity for both series of catalysts. Most of the synthesized catalysts exhibited higher activities than NiMoWS/Al–Ti reference catalyst. The present comparison study clearly showed that NiMoW/Al–Mg and NiMoW/Ti–Mg catalyst with 10 wt.% of MgO might be a promising and effective catalyst for the HDS-DBT reaction.
- Subjects
MIXED oxide catalysts; CATALYST supports; DESULFURIZATION; CATALYTIC activity; STEAM reforming; CATALYSTS; REFLECTANCE spectroscopy
- Publication
International Journal of Chemical Reactor Engineering, 2020, Vol 18, Issue 7, p1
- ISSN
1542-6580
- Publication type
Article
- DOI
10.1515/ijcre-2019-0216