Search Results - "Vrinat, M."

A new approach in the evaluation of the support effect for NiMo hydrodesulfurization catalysts by Ninh, T.K.T., Massin, L., Laurenti, D., Vrinat, M.

“…[Display omitted] ► Comparison of MoS 2 and NiMoS catalysts onto alumina, silice, titania and zirconia. ► Ni-promotion of MoS 2-supported catalysts by using…”
Get full text

Conversion of guaiacol over supported ReOx catalysts: Support and metal loading effect by Leiva, K., Garcia, R., Sepulveda, C., Laurenti, D., Geantet, C., Vrinat, M., Garcia-Fierro, J.L., Escalona, N.

“…[Display omitted] •The ReOx/SiO2 catalyst displayed the highest activity for guaiacol conversion.•The highest activity of ReOx/SiO2 was attributed to the…”
Get full text

Hydrodeoxygenation of 2-methoxyphenol over different Re active phases supported on SiO2 catalysts by Leiva, K., Martinez, N., Sepulveda, C., García, R., Jiménez, C.A., Laurenti, D., Vrinat, M., Geantet, C., Fierro, J.L.G., Ghampson, I.T., Escalona, N.

“…•Guaiacol conversion was studied over supported rhenium-based catalysts.•ReOx was the most active and selective catalyst towards deoxygenated products.•The…”
Get full text

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…”
Get full text

Support effect for CoMoS and CoNiMoS hydrodesulfurization catalysts prepared by controlled method by NINH, T. K. T, LAURENTI, D, LECLERC, E, VRINAT, M

“…CoMoS-supported catalysts were prepared by reacting Co-acetylacetonate hydrate complex onto four different oxides supported MoS sub(2): gamma -alumina, silica,…”
Get full text

Solution syntheses of unsupported Co(Ni)–Mo–S hydrotreating catalysts by Genuit, D., Afanasiev, P., Vrinat, M.

“…Highly dispersed Ni(Co)–Mo–S sulfides were prepared by simple room temperature solution reactions using nickel or cobalt salts and thiomolybdate precursors in…”
Get full text

Hydrodeoxygenation and hydrodesulfurization co-processing over ReS2 supported catalysts by Sepúlveda, C., Escalona, N., García, R., Laurenti, D., Vrinat, M.

“…[Display omitted] ► In HDO of guaiacol the higher activity was displayed by ReS2/SiO2 catalyst. ► The higher activity of ReS2/Al2O3 catalyst in co-processing…”
Get full text

Overview of support effects in hydrotreating catalysts by Breysse, Michèle, Afanasiev, Pavel, Geantet, Christophe, Vrinat, Michel

“…The commercial hydrotreating catalysts are usually composed of a sulfide active phase supported on alumina. It has been known for more than 15 years that other…”
Get full text

Highly active NiMo/TiO2-Al2O3 catalysts : Influence of the preparation and the activation conditions on the catalytic activity by GUEVARA-LARA, A, BACAUD, Robert, VRINAT, M

“…NiMo/TiO2-Al2O3 catalysts were prepared over a TiO2-Al2O3 mixed oxide (5% of Al2O3) by impregnation with nickel and molybdenum salts precursors at different pH…”
Get full text

Interaction effects of nickel polyoxotungstate with the Al2O3–MgO support for application in dibenzothiophene hydrodesulfurization by Mogica-Betancourt, J.C., López-Benítez, A., Montiel-López, J.R., Massin, L., Aouine, M., Vrinat, M., Berhault, G., Guevara-Lara, A.

“…[Display omitted] •MgO effects on impregnation, calcination and activation process of NiW/Al2O3 were analyzed.•Ni–W heteropolyoxometalate formation depends on…”
Get full text

Dehydration of ethyl lactate over alkaline earth phosphates: Performances, effect of water on reaction pathways and active sites by Blanco, E., Lorentz, C., Delichere, P., Burel, L., Vrinat, M., Millet, J.M.M., Loridant, S.

“…[Display omitted] •Alkaline earth phosphates were evaluated in gas phase dehydration of ethyl lactate.•Selectivity values to acrylic acid and ethyl acrylate…”
Get full text

Hydrodeoxygenation of guaiacol over ReS2/activated carbon catalysts. Support and Re loading effect by Sepúlveda, C., García, R., Reyes, P., Ghampson, I.T., Fierro, J.L.G., Laurenti, D., Vrinat, M., Escalona, N.

“…•Two commercial activated carbons with different properties were used as supports.•Oxygen surface groups resistant to sulfidation diminished guaiacol…”
Get full text

Hydrodesulfurization of sulfur refractory compounds: Effect of gallium as an additive in NiWS/γ-Al2O3 catalysts by Díaz de León, J.N., Picquart, M., Massin, L., Vrinat, M., de los Reyes, J.A.

“…[Display omitted] ► The presence of Ga as an additive on NiW/-γ-Al2O3 catalysts was investigated. ► Gallium induced significant increases on HDS activities for…”
Get full text

Kinetic study of the conversion of 2-methoxyphenol over supported Re catalysts: Sulfide and oxide state by Leiva, K., Sepulveda, C., García, R., Laurenti, D., Vrinat, M., Geantet, C., Escalona, N.

“…[Display omitted] •Kinetics of guaiacol conversion over ReS2/SiO2 and ReOx/SiO2 catalysts were studied.•Langmuir–Hinshelwood kinetic models were developed for…”
Get full text

New insight on competitive reactions during deep HDS of FCC gasoline by Dos Santos, N., Dulot, H., Marchal, N., Vrinat, M.

“…In order to satisfy requests for high purity fuel, sulfur compounds have to be removed selectively from FCC gasoline with a minimum of olefins hydrogenation…”
Get full text

Deep Hydrodesulfurization of Dibenzothiophenes Over NiW Sulfide Catalysts Supported on Sol–Gel Titania–Alumina by Tavizón-Pozos, J. A., Suárez-Toriello, V. A., de los Reyes, J. A., Guevara-Lara, A., Pawelec, B., Fierro, J. L. G., Vrinat, M., Geantet, C.

“…This work showed that the use of Al 2 O 3 –TiO 2 as carriers has a positive effect on the activity of supported NiW catalysts in the hydrodesulfurization of…”
Get full text

Deep desulfurization: reactions, catalysts and technological challenges by Breysse, Michèle, Djega-Mariadassou, Gérald, Pessayre, Stéphanie, Geantet, Christophe, Vrinat, Michel, Pérot, Guy, Lemaire, Marc

“…Very stringent regulation in the maximal S content of gas oil have led to an intense activity of research dealing with all the aspects of desulfurization. The…”
Get full text

Unexpected Support Effect in Hydrotreating: Evidence of a Metallic Character for ReS2/Al2O3 and ReS2/SiO2 Catalysts by Sepulveda, C., Garcia, R., Escalona, N., Laurenti, D., Massin, L., Vrinat, M.

“…Rhenium sulfide based catalysts were prepared by the incipient wetness impregnation method over alumina and silica supports and evaluated for…”
Get full text

Alkyldibenzothiophenes Hydrodesulfurization-Promoter Effect, Reactivity, and Reaction Mechanism by Bataille, Frédéric, Lemberton, Jean-Louis, Michaud, Philippe, Pérot, Guy, Vrinat, Michel, Lemaire, Marc, Schulz, Emmanuelle, Breysse, Michèle, Kasztelan, Slavik

“…The promoter effect of Co or Ni on the hydrodesulfurization (HDS) activity of Mo/alumina was studied by using dibenzothiophene (DBT) and…”
Get full text

Effect of gallium as an additive in hydrodesulfurization WS2/γ-Al2O3 catalysts by DIAZ DE LEON, J. N, PICQUART, M, VILLARROEL, M, VRINAT, M, LLAMBIAS, F. J. Gil, MURRIETA, F, DE LOS REYES, J. A

“…The effect of gallium in W/Ga(x)-gamma-Al2O3 catalysts was investigated in the hydrodesulfurization of dibenzothiophene. The gamma-Al2O3 carrier was modified…”
Get full text