Výsledky vyhledávání

Experimental Evidences of the Direct Influence of Phosphorus on Activity and Selectivity of a MoS2-γAl2O3 Hydrotreating Catalyst

Autor: R. Hubaut, Jean Grimblot, O. Poulet, Slavik Kasztelan

Publikováno v: Bulletin des Sociétés Chimiques Belges. 100:857-863

The objectives of this work are to provide new arguments for elucidating the influence of P added to a classical MoS2-γAl2O3 catalyst. The sulfided catalyst, activated by H2 at different temperatures TR in order to create anionic vacancies around th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9b89997c9901b79cb8e4dcb4302bc3be
https://doi.org/10.1002/bscb.19911001110

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Bulk Fe-v Mixed Sulphides as Hydroprocessing Catalysts: Characterization and Thiophene Hydrodesulphurization

Autor: B.P. Embaid, Jean Grimblot, F. Gonzalez-Jimenez, R. Hubaut, M. A. Luis, L. Gengembre, Carlos E. Scott

Publikováno v: Bulletin des Sociétés Chimiques Belges. 104:331-337

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cde189ad7f405b3a3962a064dab2e317
https://doi.org/10.1002/bscb.19951040423

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1H and 31P solid-state NMR of trimethylphosphine adsorbed on heteropolytungstate supported on silica

Autor: Michel Fournier, J. Deleplanque, R. Hubaut, Alain Rives, Philippe R. Bodart

Publikováno v: Applied Surface Science
Applied Surface Science, Elsevier, 2009, 255 (9), pp.4897-4901. ⟨10.1016/j.apsusc.2008.12.031⟩
Applied Surface Science, 2009, 255 (9), pp.4897-4901. ⟨10.1016/j.apsusc.2008.12.031⟩

Trimethylphosphine (TMP) has been used as an NMR probe in order to determine the acidity of Keggin-type 12-tungstophosphoric heteropolyacid (HPW), pure and supported on silica, dehydrated at 473 K. Adsorption of TMP on pure dehydrated HPW leads to th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a16d4aa16246ce2b7b26a67c8e2b2b8
https://doi.org/10.1016/j.apsusc.2008.12.031

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Vanadium-based sulfides as hydrotreating catalysts

Autor: R. Hubaut

Publikováno v: Applied Catalysis A: General. 322:121-128

The V deposit obtained in petroleum feedstocks hydrodemetallation can leads to significant change for the hydrotreating catalyst activity. Actually, although vanadium sulfide solids have shown only moderate activities, these are significant and highe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68e32aeec741b16791d67608eac645bb
https://doi.org/10.1016/j.apcata.2007.01.020

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Characterization and HDS activities of mixed Fe–Mo sulphides supported on alumina and carbon

Autor: Jonathan R. Altafulla, Carlos E. Scott, Alain Rives, R. Hubaut

Publikováno v: Fuel
Fuel, Elsevier, 2007, 86 (5-6), pp.743-749. ⟨10.1016/j.fuel.2006.09.012⟩

Alumina and activated carbon-supported mixed sulphides (FeMoS) were prepared as hydrotreating catalysts. Previous work had shown bulk Fe–Mo mixed sulphides to be promising catalysts for hydrotreatment. Characterizations of the solids by NH3-TPD pro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dad06119ffb6913c63964b1ec48a7d9b
https://doi.org/10.1016/j.fuel.2006.09.012

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Mechanical mixtures of Me (Ni, Pd) Ce oxides and silica-supported heteropolyacids: Role and optimal concentration of each active species in n-hexane isomerization

Autor: Alain Rives, B. Ouled Ben Tayeb, Michel Fournier, W. Kuang, R. Hubaut

Publikováno v: Kinetics and Catalysis
Kinetics and Catalysis, MAIK Nauka/Interperiodica, 2006, 47 (1), pp.20-24. ⟨10.1134/S0023158406010046⟩
Kinetics and Catalysis, MAIK Nauka/Interperiodica, 2006, 47, pp.20. ⟨10.1134/S0023158406010046⟩
Kinetics and Catalysis, 2006, 47, pp.20. ⟨10.1134/S0023158406010046⟩

Catalytic properties of silica-supported heteropolyacids (HPA) in a mechanical mixture with reduced Me-Ce oxides (Me = Ni, Pd) in n-hexane isomerization are studied. The role of each component of the mixed oxides (Ce and, typically, Ni and Pd) and th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0a9d39829739fd59068f362125cb322
https://doi.org/10.1134/s0023158406010046

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Acidity of Sulphated Zirconia Aerogels: Correlation Between XPS Studies, Surface Potential Measurements and Catalytic Activity in Isopropanol Dehydration Reaction

Autor: Alain Rives, Abdelhamid Ghorbel, R. Hubaut, M. K. Younes

Publikováno v: Journal of Sol-Gel Science and Technology
Journal of Sol-Gel Science and Technology, Springer Verlag, 2004, 32 (1-3), pp.349-352. ⟨10.1007/s10971-004-5815-3⟩

Sulphated zirconias with various atomic S/Zr ratios were prepared by sol–gel method. The acidity of these solids has been studied through qualitative and quantitative XPS studies, surface potential measurements and isopropanol dehydration reaction.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8049c819024e8a5ea63578b5b4835230
https://doi.org/10.1007/s10971-004-5815-3

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