Zobrazeno 1 - 10 of 75 pro vyhledávání: '"J.C. Duchet"'
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Formation of Promoted Sites From Ni(CO)4 Decomposition on Sulfided Mo/Al2O3 Catalysts. A Comparative Ir Study With Conventional Ni-Mo/Al2O3 Catalysts, Using CO as a Probe Molecule
Autor: J.C. Duchet, M. Angulo, Jean Claude Lavalley, Françoise Maugé
Publikováno v: Bulletin des Sociétés Chimiques Belges. 96:925-930
IR spectroscopy has been used to characterize samples prepared by decomposition of nickel carbonyl over a MoS2/γ-Al2O3 based catalyst. IR spectra of adsorbed CO indicates a much higher degree of promotion than for the conventional Ni-Mo/Al2O3 cataly
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7909da9d7bf9a8d402232d268757c738
https://doi.org/10.1002/bscb.19870961111
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3
Sulfided CO-mo/AL2O3 Catalysts: Carbon Monoxide Chemisorption and Surface Structures
Autor: N. J. Tilliette, Daniel Cornet, M. Cornac, J. Bachelier, J.C. Duchet, Jean Claude Lavalley
Publikováno v: Bulletin des Sociétés Chimiques Belges. 93:743-750
The interaction between Co and Mo ions has been examined on a series of Co-Mo/Al2O3 catalysts with constant Mo (6.3 % MoO3) and variable Co concentrations (0.5 - 4.3 % CoO) by comparison with Co/Al2O3 and Mo/Al2O3 catalysts. The type of surface struc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9119bb0e49433c49e7c7a19bc1909a8
https://doi.org/10.1002/bscb.19840930816
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4
New Developments in Hydrotreating Catalysis : Characterization and Optimization of Niw/A12O3 Catalysts
Autor: M. Breysse, P. Genested, J. L. Olive, J. Grimblot, J.C. Duchet, R. Durand, Claude Moreau, J. Bachelier, Christian Gachet, Jean-Pierre Bonnelle, C. Leclercq, J. C. Lavalley, Jean-Louis Portefaix, Roger Fréty, P. Engelhard, S. Kasztelan, Hervé Toulhoat, T. Decamp, M. Cattenot, M. Vrinat, C. Gueguen, Edmond Payen, Maxime Lacroix, Daniel Cornet, L. De Mourgues
Publikováno v: Bulletin des Sociétés Chimiques Belges. 96:829-844
Alumina supported NiW catalysts with components concentrations varying in a wide range were systematically studied in order to optimize a catalyst for further industrial uses. The genesis of the active phase was examined by using several physicochemi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::51e209a14f40ed1ff74f76589ae08cfa
https://doi.org/10.1002/bscb.19870961101
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5
CoMo/Al2O3 VERSUS NiMo/Al2O3 SULPHIDE CATALYSTS : SENSITIVITY TO REACTION CONDITIONS FOR HDS AND HYDROGENATION
Autor: L. Finot, J.C. Duchet, J. van Gestel, J. Leglise
Publikováno v: Bulletin des Sociétés Chimiques Belges. 104:189-195
Two industrial hydrotreating catalysts, CoMo/Al2O3 and NiMo/Al2O3, were compared with respect to their activity and selectivity In thiophene hydrodesulphurisation and cyclohexene hydrogenation at 280°C and 4 MPa. Their difference in catalytic proper
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::739fbea7c023b9e225c4f36fe0f00787
https://doi.org/10.1002/bscb.19951040403
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7
Platinum tungstated zirconia isomerization catalystsPart I. Characterization of acid and metal properties
Autor: Christine Collet, T.N. Vu, Jean-Pierre Gilson, Jean-Pierre Dath, J.C. Duchet, J. van Gestel
Publikováno v: Journal of Catalysis. 231:453-467
Tungstated zirconia catalysts containing 14–34 wt% W were prepared by bringing silica-modified hydrous zirconia into contact with appropriate amounts of metatungstate. The dry powders were extruded with an alumina binder and calcined at 1023 K. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::240d5d51663e0ef4967180041878a677
https://doi.org/10.1016/j.jcat.2005.01.037
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Surface and Subsurface Platinum in Sulfated Zirconia Catalysts: Relation with Toluene Hydrogenation and n-Hexane Isomerization
Autor: Jean-Pierre Gilson, J. van Gestel, Vu T. Nghiem, J.C. Duchet, D. Guillaume
Publikováno v: Journal of Catalysis. 212:173-181
Surface platinum of sulfated zirconia has been characterized by hydrogenation of toluene at 150°C and by carbon monoxide adsorption on a series of catalysts containing 0.025–0.8 wt% Pt. The variation of the hydrogenation rate with the Pt content s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9d7b12718986b15b5d5fd5b590adc34
https://doi.org/10.1006/jcat.2002.3765
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9
[Untitled]
Autor: J.C. Duchet, J.B. Laizet, A.K. Søiland, J. Leglise
Publikováno v: Topics in Catalysis. 10:89-97
Two series of sulfated zirconia have been prepared by immersing amorphous or crystalline zirconia in an H2SO4 solution (0.25–2.5 M). They were compared with a commercial sulfated zirconium hydroxide. Activation temperature was varied between 300 an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b0e4805ab4a99f32c29bc1b0e29c19f9
https://doi.org/10.1023/a:1019168102044
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Kinetics of sulfur model molecules competing with H2S as a tool for evaluating the HDS activities of commercial CoMo/Al2O3 catalysts
Autor: Jean-Luc Dubois, J Leglise, J. van Gestel, J.C. Duchet, L. Finot
Publikováno v: Catalysis Today. 45:347-352
The relative-volume activities (RVAs) for real feedstocks HDS of four commercial CoMo/Al 2 O 3 catalysts have been compared to the rates for thiophene and dibenzothiophene conversion. The reaction of thiophene competing with H 2 S was studied in flow
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f7a59b30b46852b5057a53773dce68f
https://doi.org/10.1016/s0920-5861(98)00260-0
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