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Sales, Emerson Andrade; Jové, J.; Nectoux, F.; Bozon‐Verduraz, François; Mendes, Mário J. G. C.

doi:10.1023/a:1011055703958

Cited by 19 publications

(26 citation statements)

References 6 publications

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“…For instance in the C4 streams, the residual concentration of the main impurity, buta-1,3-diene, must be lower than 5 ppm for polymer grade specification. Much attention has been paid to the study of AgPd [7][8] and AuPd [9][10] systems which have been found to be more efficient catalysts compared to monometallic ones for hydrogenation of alkynes and dienes of the different hydrocarbon effluents.…”

Section: Introductionmentioning

confidence: 99%

Bimetallic Au-Pd and Ag-Pd Clusters Synthesised by $\gamma $ or Electron Beam Radiolysis and Study of the Reactivity/Structure Relationships in the Selective Hydrogenation of Buta-1,3-Diene

Redjala¹,

Remita²,

Apostolescu³

et al. 2006

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Agrégats bimétalliques Au-Pd et Ag-Pd synthétisés par réduction radiolytique : étude des relations réactivité/structure en hydrogénation sélective du buta-1,3-diène -Des catalyseurs Ag-Pd et Au-Pd (sous forme d'alliage ou de structure coeur-coquille) ont été synthétisés par réduction radiolytique (rayons gamma ou faisceau d'électrons). L'étude de l'hydrogénation sélective de buta-1,3-diène par ces différents nanoagrégats déposés sur alumine a permis de déterminer les effets de la composition et de la structure sur les performances catalytiques. Les nanoagrégats Au-Pd et Ag-Pd montrent des propriétés catalytiques très différentes : alors que l'activité en hydrogénation est modifiée dans des systèmes Au-Pd sans changement de sélectivité dans la formation des butènes, d'importantes variations de sélectivité sont observées pour les nanoagrégats Ag-Pd déposés sur alumine. Abstract -Bimetallic Au-Pd and Ag-Pd Clusters Synthesised by γ γ or Electron Beam Radiolysis and

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Section: Introductionmentioning

confidence: 99%

Bimetallic Au-Pd and Ag-Pd Clusters Synthesised by $\gamma $ or Electron Beam Radiolysis and Study of the Reactivity/Structure Relationships in the Selective Hydrogenation of Buta-1,3-Diene

Redjala¹,

Remita²,

Apostolescu³

et al. 2006

Oil & Gas Science and Technology - Rev. IFP

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“…It has been shown that for reduced Pt-Sn-alumina catalysts tin is predominantly present in the oxidized state, but that a portion of tin is also present as Sn ~ which can form Pt/Sn alloys or solid solutions of Sn in Pt [6]. Analogous observations were made for Pd-Sn-alumina [7] and for Ru-Sn-alumina catalysts [4]. Although no experim~tal evidence is available, this chemical behavior of Sn is also assumed to occur on sol-gel catalysts [4].…”

Section: Resultsmentioning

confidence: 93%

Hydrogenation of oleic acid over sol-gel ruthernium catalysts

Costa

Jordão

Mendes

et al. 1999

React Kinet Catal Lett

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Abs~a~The hydrogenation of oleic acid to oleyl alcohol over Ru-alumina and Ru-Snalumina sol-gel catalysts has been studied. It was found that, besides its hydrogenation activity, the Ru-Sn-alumina catalyst promotes the cis-trans isomerization of the unsaturated acid. This effect is used to explain some kinetic features of the system, like the high induction time observed in the formation of alcohols, and to re-examine the role of tin.

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“…The kinetics study of liquid phase hydrogenation using rate of hydrogen consumption has been reported in other research investigations [3,5]. The slope of the line at the origin represents the initial rate of the reactions and the rate constant assuming zero order dependence of reaction on hydrogen [3,6]. The rate constant of the different supported Pd catalysts in liquid phase hydrogenation of 1-hexene at 25 o C and the TOFs are reported in Table 1.…”

Section: Catalyst Activitiesmentioning

confidence: 88%