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Title: Effect of Mg as Impurity on the Structure of Mesoporous γ-Al203: Efficiency as Catalytic Support in HDS of DBT
Authors: Romero Toledo, Rafael
Bravo Sánchez, M.
Rangel Porras, G.
Fuentes Ramírez, Rosalba
Pérez Larios, Alejandro
Medina Ramírez, A.
Martínez Rosales, M.
Keywords: γ-Al2O3
low cost
Issue Date: Nov-2018
Publisher: De Gruyter
Citation: Romero Toledo R., Bravo Sánchez M., Rangel Porras G., Fuentes Ramírez R., Pérez Larios A., Medina Ramirez A. y Martínez Rosales M. (2018). Effect of Mg as Impurity on the Structure of Mesoporous γ-Al203: Efficiency as Catalytic Support in HDS of DBT. De Gruyter, en International Journal of Chemical Reactor Engineering, Volume 16, Issue 11, 20170141. DOI:
Series/Report no.: International Journal of Chemical Reactor Engineering;Volume 16, Issue 11, 20170141
Abstract: Abstract This work shows the study of two alumina materials synthesized from aluminum sulfate with different purity by hydrolysis-precipitation route. The main difference between the aluminum salt precursors was the lower cost of one of them which was due to the higher percentage of magnesium species as impurity. Both materials showed different mesoporous structure nano-fibrillar. The physic-chemical properties of these materials were studied by several characterization techniques as XRD, XRF, BET, 27Al MAS NMR, Pyridine adsorption FT-IR, FE-SEM/EDX, TEM and XPS. Furthermore, these materials were used as supports in the formulations of NiMo-based catalysts which were obtained by impregnation by the incipient wetness method of Ni and Mo salts in 3.3 and 15 wt. % respectively. The two NiMo/γ-Al2O3 sulfide catalysts were evaluated as catalysts in the reaction of hydrodesulphurization (HDS) of dibenzothiophene (DBT), using a high-pressure batch reactor at 350 °C and 3.1 MPa and time reaction of 5 h−1. The NiMo/γ-Al2O3 catalyst prepared by aluminum sulfate of low purity and lower cost exhibited the highest HDS efficiencies, 95 %, respectively, which were mainly ascribed to the presence of Mg (0.9 wt. %) as impurity.
Description: Sólo resúmen
ISSN: 1542-6580
Appears in Collections:3303 Artículos

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