Search Results - "Frety, R"

Cotton linter as biosorbent: removal study of highly diluted crude oil-in-saline water emulsion by Silva, M. S., Fréty, R., Vidal, R. R. L.

“…The removal of crude oil in saline water from microemulsion by cotton linter fiber was investigated by batch sorption. The experimental sorption data were…”
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Characterization of model three-way catalysts. I. Determination of the accessible metallic area by cyclohexane aromatization activity measurements by ROEEMOND, E, ESSAYEM, N, FRETY, R, PERRICHON, V, PRIMET, M, MATHIS, F

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Activation and Regeneration of a NiMo/Al2O3 Hydrotreatment Catalyst by Teixeira da Silva, V. L. S, Frety, R, Schmal, Martin

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Partial oxidation of methane to synthesis gas. Behaviour of different Ni supported catalysts by NICHIO, N, CASELLA, M, FERRETTI, O, GONZALEZ, M, NICOT, C, MORAWECK, B, FRETY, R

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The promoting effect of noble metal addition on niobia-supported cobalt catalysts by Noronha, F.B., Frydman, A., Aranda, D.A.G., Perez, C., Soares, R.R., Morawek, B., Castner, D., Campbell, C.T., Frety, R., Schmal, M.

“…The promoting effects of a noble metal (Pd, Pt, Rh) added to Co/Nb 2O 5 catalysts were studied by varying the Me/Co atomic ratios. Acid niobium was calcined to…”
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Characterization of Niobia-Supported Palladium−Cobalt Catalysts by Noronha, F. B, Schmal, Martin, Moraweck, B, Delichère, P, Brun, M, Villain, F, Fréty, R

“…Niobium oxide supported Pd−Co catalysts were characterized through XPS (X-ray photoelectron spectroscopy), (XPS), temperature-programmed reduction (TPR),…”
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Characterization of residual coke during burning by Pieck, Carlos L, Jablonski, Estanislao L, Parera, Jose M, Frety, Roger, Lefebvre, Frederic

“…Coke remaining from the partial burning of coke deposited during the commercial re-forming of naphtha on a Pt-Re/Al203 catalyst was studied. Burning…”
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Effect of lithium and residual nitrate species on platinum dispersion in Pt/Al2O3 catalysts by PASSOS, F. B, SCHMAL, M, FRETY, R

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Evidence of Alloy Formation during the Activation of Graphite-Supported Palladium-Cobalt Catalysts by Noronha, F.B., Schmal, M., Fréty, R., Bergeret, G., Moraweck, B.

“…Magnetism, XRD, and EXAFS analyses were used to study the formation of a solid solution on Pd-Co/G catalysts during reduction treatment. After reduction at 773…”
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Characterization of niobium pentoxide prepared by flame reaction by GUENIN, M, FRETY, R, GARBOWSKI, E, VERGNON, P

“…Finely divided and well-crystallized niobium oxide has been prepared by flame reaction and identified as L-Nb sub(2)O sub(5). The solid particles are…”
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Preparation of Alumina-Supported Ceria. II. Measurement of Ceria Surface Area after Impregnation with Platinum or Rhodium by Rogemond, E., Fréty, R., Perrichon, V., Primet, M., Salasc, S., Chevrier, M., Gauthier, C., Mathis, F.

“…The surface area of cerium oxide was tentatively determined in model three-way catalysts using (i) a methodology based on the exploitation of the hydrogen…”
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Characterization of Graphite-Supported Palladium–Cobalt Catalysts by Temperature-Programmed Reduction and Magnetic Measurements by Noronha, F.B., Schmal, M., Nicot, C., Moraweck, B., Fréty, R.

“…Graphite-supported cobalt, palladium, and cobalt–palladium systems were prepared by a simple impregnation technique and submitted to hydrogen reduction in a…”
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Iridium supported catalysts. Variation of sulfur coverage with the nature of the carrier by FRETY, R, DA SILVA, P. N, GUENIN, M

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Hydrotreatment of Irati shale oil: behavior of the aromatic fraction by Afonso, Julio C, Schmal, Martin, Cardoso, Jari N, Frety, Roger

“…This paper presents the chemical transformations that occur in the aromatic fraction of Irati shale oil under rather drastic hydrotreating conditions, at…”
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Influence of the nature of the platinum precursor on the surface properties and catalytic activity of alumina-supported catalysts by REYES, P, OPORTUS, M, PECCHI, G, FRETY, R, MORAWECK, B

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Characterization of Model Three-Way Catalysts: III. Infrared Study of the Surface Composition of Platinum–Rhodium Ceria–Alumina Catalysts by Rogemond, E., Essayem, N., Fréty, R., Perrichon, V., Primet, M., Chevrier, M., Gauthier, C., Mathis, F.

“…The surface composition of model and commercial bimetallic PtRh catalysts supported on ceria–alumina was tentatively determined by FTIR spectroscopy using the…”
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Characterization and catalytic activity of Al2O3-supported Pt-Co catalysts by MORAWECK, B, FRETY, R, PECCHI, G, MORALES, M, REYES, P

“…A series of Pt-Co supported on γ-alumina have been prepared from acetylacetonate precursors with 2 wt% as total metal loading and different atomic contents…”
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Evolution of the ceria surface area of PtRh ceria-alumina catalysts submitted to hydrothermal aging at 1273 K by Rogemond, E., Fréty, R., Perrichon, V., Primet, M., Chevrier, M., Gauthier, C., Mathis, F.

“…The accessible surface area of cerium oxide was measured on model ceria-alumina supported Pt and/or Rh catalysts submitted to an hydrothermal treatment at 1273…”
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Mobility and reducibility of ionic tin during activation of Ir-Sn/Al2O3 catalysts by Fréty, R., Guenin, M., Bussiere, P., Lam, Y. L.

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Influence of the activation temperature on the metal accessibility in model three-way catalysts by Rogemond, E., Essayem, N., Fréty, R., Perrichon, V., Primet, M., Chevrier, M., Gauthier, C., Mathis, F.

“…The influence of the reduction temperature on the accessibility of the metallic surface was studied on model ceria-alumina supported platinum or rhodium…”
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