Search Results - "de los Reyes, J.A."

Influence of calcination on metallic dispersion and support interactions for NiRu/TiO2 catalyst in the hydrodeoxygenation of phenol by Valdés-Martínez, O.U., Santolalla-Vargas, C.E., Santes, V., de los Reyes, J.A., Pawelec, B., Fierro, J.L.G.

“…[Display omitted] •The calcination procedure through the formation of metallic oxides induced less dispersed NiRu species.•Materials characterization pointed…”
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Influence of the solution pH in impregnation with citric acid and activity of Ni/W/Al2O3 catalysts by Suárez-Toriello, V.A., Santolalla-Vargas, C.E., de los Reyes, J.A., Vázquez-Zavala, A., Vrinat, M., Geantet, C.

“…[Display omitted] •Ni/W/Al2O3 catalyst prepared with nickel-citrate solutions at different pH values.•Highly active Ni/W/Al2O3 catalyst in the HDS of…”
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Support effects of NiW hydrodesulfurization catalysts from experiments and DFT calculations by Díaz de León, J.N., Antunes-García, J., Alonso-Nuñez, G., Zepeda, T.A., Galvan, D.H., de los Reyes, J.A., Fuentes, S.

“…[Display omitted] •W dispersion was measured by UV–vis DRS characterization.•Activity correlates with WOxSy phase formed under reaction conditions.•Promoted…”
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Support effects of NiW catalysts for highly selective sulfur removal from light hydrocarbons by Díaz de León, J.N., Zavala-Sánchez, L.A., Suárez-Toriello, V.A., Alonso-Núñez, G., Zepeda, T.A., Yocupicio, R.I., de los Reyes, J.A., Fuentes, S.

“…[Display omitted] •The support can induce morphological changes in the NiWS active phase.•The carriers play a paramount role in the final activity and…”
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Active Ni and Fe species on catalysts Ni/Al2O3 and NiFe/Al2O3 for the oxidative dehydrogenation (ODH) of ethane to ethylene assisted by CO2 by Cancino-Trejo, F., Santes, Victor, Cardenas, Juan Alberto Alcantara, Gallardo, Marisol, Maldonado, Yadira G., Miranda A, Lopéz., Valdes, Omar, de los Reyes, J.A., Santolalla-Vargas, C.E.

“…•The iron addition decreased the crystal size of the NiO.•Spinel-type structures such as NiAl2O4, NiFe2O4, and FeAl2O4 are active species in the ODH of…”
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Compensation in the isopropyl alcohol dehydration over sol–gel Al2O3–TiO2 oxides: Effect of calcining temperature by Escobar, J., De Los Reyes, J.A., Viveros, T., Valle-Orta, M., Barrera, M.C.

“…[Display omitted] •Sol–gel alumina, titania and mixed oxides (Al/Ti=2 and 25) tested in isopropanol dehydration.•Alumina and titania had the highest specific…”
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Effect of gallium loading on the hydrodesulfurization activity of unsupported Ga2S3/WS2 catalysts by Zepeda, T.A., Pawelec, B., Díaz de León, J.N., de los Reyes, J.A., Olivas, A.

“…The gallium addition has a strong effect on the morphology of the tungsten sulfide phase by modifying the coordinately unsaturated sites (CUS) of the WS2 phase…”
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Removal of refractory S-containing compounds from liquid fuels over P-loaded NiMoW/SBA-16 sulfide catalysts by Guzmán, M.A., Huirache-Acuña, R., Loricera, C.V., Hernández, J.R., Díaz de León, J.N., de los Reyes, J.A., Pawelec, B.

“…► SBA-16 substrate modified with 1wt.% of P is an efficient support for NiMoW HDS catalysts. ► The NiMoW/SBA-16 sulfide catalyst with 1wt.% of P is more active…”
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Effect of chelating ligands on Ni-Mo impregnation over wide-pore ZrO2-TiO2 by ESCOBAR, J, BARRERA, M. C, DE LOS REYES, J. A, TOLEDO, J. A, SANTES, V, COLIN, J. A

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Ga and Al containing MCM-41 mesoporous molecular sieves: Structure and catalytic performance for the 4,6 dimethyldibenzothiophene hydrodesulfurization by Martínez-Belmonte, E., Aguilar, J., Gutierrez, M., Montoya, J.A., De los Reyes, J.A., Torres, M., Chen, L.F.

“…[Display omitted] ► Al–Ga-MCM-41 were evaluated as supports for Ni–Mo–S catalysts in the HDS of 4,6-dimethyldibenzothiphene (4,6 DMDBT). ► The amount of Ga in…”
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Palladium effect over Mo and NiMo/alumina–titania sulfided catalysts on the hydrodesulfurization of 4,6-dimethyldibenzothiophene by Aguirre-Gutiérrez, A., de la Fuente, J.A. Montoya, de los Reyes, J.A., del Angel, P., Vargas, A.

“…The catalytic behavior of the Ni, Pd, Mo catalysts was evaluated in the 4,6-DMDBT HDS reaction. Pd incorporation over the NiMo/AT sample increased the reaction…”
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Kinetics of HDS and of the inhibitory effect of quinoline on HDS of 4,6-DMDBT over a Ni–Mo–P/Al2O3 catalyst: Part I by García-Martínez, J.C., Castillo-Araiza, C.O., De los Reyes Heredia, J.A., Trejo, E., Montesinos, A.

“…► The effect of Q and its reaction byproducts on the HDS of 4,6-DMDBT was studied. ► HDS and HDN reactions were studied under industrial operating conditions…”
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Effect of alumina–titania supports on the activity of Pd, Pt and bimetallic Pd–Pt catalysts for hydrorefining applications by Galindo, I.R., de los Reyes, J.A.

“…A series of Pd, Pt and bimetallic Pd:Pt (4:1) based catalysts were supported on various alumina–titania mixed oxides. Their catalytic properties were probed on…”
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Hydrogen production over Rh/Ce-MCM-41 catalysts via ethanol steam reforming by González Vargas, O.A., de los Reyes Heredia, J.A., Wang, J.A., Chen, L.F., Montesinos Castellanos, A., Llanos, M.E.

“…1 wt%Rh/Ce-MCM-41 catalysts were synthesized using Ce-MCM-41 as support where Si/Ce molar ratio varied from 10 to 30 and 50. During hydrogen reduction process,…”
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Effect of TiO2 in supported NiWS catalysts for the hydrodeoxygenation of guaiacol by García-Mendoza, C., Santolalla-Vargas, C.E., Woolfolk, Luis G., del Ángel, P., de los Reyes, J.A.

“…[Display omitted] •NiW catalyst supported on titania was the most active in the guaiacol HDO.•Bifunctional catalysts were required to the completely…”
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Support effect and metals interactions for NiRu/Al2O3, TiO2 and ZrO2 catalysts in the hydrodeoxygenation of phenol by Valdés-Martínez, O.U., Suárez-Toriello, V.A., Reyes, J.A. de los, Pawelec, B., Fierro, J.L.G.

“…[Display omitted] •Ru enhanced nickel reducibility which may be related to a hydrogen spillover effect.•HDO catalytic activity was correlated with the…”
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Effect of sulfidation pressure on the structure and activity of Ni(CyDTA)W/γ-Al2O3 hydrodesulfurization catalysts by Santolalla-Vargas, C.E., Santes, Victor, Suarez-Toriello, V.A., de los Reyes, J.A., Pawelec, B., Fierro, J.L.G., Garcia, E. Dominguez, Oliviero, L., Maugé, F.

“…[Display omitted] •NiW/γ-Al2O3 catalysts were prepared at different pHs and in presence of a chelating agent (CyDTA).•The influence of sulfurization pressure…”
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Fractal analysis of X-ray diffraction patterns of zirconia–alumina mixed oxides by Gordillo-Cruz, E., Alvarez-Ramirez, J., González, F., de los Reyes, J.A

“…X-ray diffractograms of amorphous material commonly exhibit complex shapes with broad background noise. The X-ray diffraction signal of amorphous material…”
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Support effect and metals interactions for NiRu/Al 2 O 3 , TiO 2 and ZrO 2 catalysts in the hydrodeoxygenation of phenol by Valdés-Martínez, O.U., Suárez-Toriello, V.A., Reyes, J.A. de los, Pawelec, B., Fierro, J.L.G.

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RuS2-modified NiW/Al2O3 catalysts for refractory 4,6-dimethyl-dibenzothiophene hydrodesulfurization by González-Ildelfonso, M., Escobar, J., Gordillo-Cruz, E., del Ángel, P., Suárez-Toriello, V.A., De los Reyes, J.A.

“…Al2O3-supported noble metal (NM)-modified hydrodesulfurization (HDS) catalysts (W 15.8 wt% and Ni 3.5 wt%) were applied in refractory…”
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