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Pillar effects in MoS2 catalysts supported on Al and Zr pillared clays in a hydrotreatment reaction: A preliminary study |
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| Authors: | JA Colín L JA de los Reyes A Vzquez A Montoya |
| Institution: | aDepartamento de Energía, Universidad Autónoma Metropolitana-Azcapotzalco, 02200 D.F., México bArea de Ingeniería Química, Universidad Autónoma Metropolitana-Iztapalapa, Apdo. Postal 55-534, México 09340 D.F., México cInstituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas 152, México 07730 D.F., México |
| Abstract: | Molybdenum (Mo) supported on aluminum-pillared clay (Al-PILC) and zirconium-pillared clay (Zr-PILC) with contents of 0.6, 1.4 and 2.8 atoms of Mo/nm2 were prepared and tested in the hydrogenation (HYD) of naphthalene (NP). It was found that the molybdenum sulfide (MoS2) catalysts supported on Zr- pillared clays were more active than the samples supported on Al-pillared clays and catalysts supported on alumina. The catalysts were characterized by X-ray diffraction (XRD), thermogravimetric analysis, nitrogen adsorption and transmission electron microscopy (TEM). Characterization analysis clearly pointed out to a close interaction of MoS2 with ZrO2 in the pillared clays. Therefore, the highest hydrogenation activities can be related to the presence of an interaction of MoS2 with ZrO2, probably with a different electronic interaction between the active phase and the support, than that reported for the MoS2/Al2O3 system. |
| Keywords: | Clay Zirconium-pillared clay Aluminum-pillared clay Hydrogenation Naphthalene Sulfur molybdenum |
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