Effect of ethyleneglycol addition on the properties of P-doped NiMo/Al2O3 HDS catalysts: Part I. Materials preparation and characterization

Escobar, José; Barrera, María C.; Toledo, J. A.; Cortés-Jácome, M.A.; Ángeles–Chávez, C.; Núñez, Sara; Santes, Vı́ctor; Gómez, Elizabeth; Díaz, Leonardo; Romero, E.; Pacheco, José Geraldo A.

doi:10.1016/j.apcatb.2008.10.005

Cited by 59 publications

(62 citation statements)

References 52 publications

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“…1 and 2). This contribution, associated to the formation of the NiMoS phase, is mainly positioned at 854.0 ± 0.1eV in agreement with others papers [19,20].…”

Section: Xps Analysissupporting

confidence: 79%

A Rational Comparison of the Optimal Promoter Edge Decoration of HDT NiMoS vs CoMoS Catalysts

Marchand

Legens

Denis

et al. 2009

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Étude comparative de la décoration optimale par le promoteur des phases CoMoS et NiMoS actives en hydrotraitement -Dans le but d'acquérir une meilleure compréhension de la morphologie et la teneur en promoteur de la phase active des catalyseurs d'hydrotraitement dans les conditions de l'hydrotraitement, une étude multi-technique a été entreprise sur une série de catalyseurs NiMoP avec des ratios Ni/Mo variables. La combinaison de la spectroscopie photoélectronique-X, de la microscopie électronique à transmission, de la modélisation moléculaire ab initio et de tests catalytiques d'hydrogénation du toluène a permis d'aboutir à un modèle morphologique qui a été comparé à une précédente étude menée sur une série analogue promue par le cobalt. Cette étude confirme l'importance de la présence de sites mixtes Ni-Mo sur les bords des cristallites, en particulier sur le bord M-edge pour les réactions d'hydrogénation. Ces résultats permettent d'orienter la mise au point de nouveaux catalyseurs dans le but de maximiser leurs performances. Abstract -A Rational Comparison of the Optimal Promoter Edge Decoration of HDT NiMoS vs CoMoS Catalysts -In order to gain a better understanding of the morphology and promoter edge content of the active phase of industrial HDT NiMoP catalysts in working conditions, a multi-technique study has been undertaken on a series of NiMoP catalysts with various Ni/Mo ratios. The combination of X-ray Photoelectron Spectroscopy (XPS), Transition Electron Microscopy (TEM), Density Functional Theory (DFT) modeling and catalytic testing (toluene hydrogenation) provided data to build a morphological model of NiMoS nanocrystallites. A parallel has been established with their CoMoS

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“…1 and 2). This contribution, associated to the formation of the NiMoS phase, is mainly positioned at 854.0 ± 0.1eV in agreement with others papers [19,20].…”

Section: Xps Analysissupporting

confidence: 79%

A Rational Comparison of the Optimal Promoter Edge Decoration of HDT NiMoS vs CoMoS Catalysts

Marchand

Legens

Denis

et al. 2009

Oil & Gas Science and Technology - Rev. IFP

View full text Add to dashboard Cite

show abstract

“…In this respect, one of the most efficient ways of enhancing the final HDS activity is related to the use of organic additives during the preparation of HDS catalysts [12][13][14][15][16]. Two main distinct families of additives can be distinguished: glycol-type agents and chelating or complexing agents.…”

Section: Introductionmentioning

confidence: 99%

Maleic acid, an efficient additive for the activation of regenerated CoMo/Al2O3 hydrotreating catalysts

Bui

Geantet

Berhault

2015

Journal of Catalysis

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“…In [13] we have already shown that the use of intermediate carbon carrier placed between alumina and active phase allowed to increase the stacking number of active phase and catalysts activity. Recently, other authors have indicated [47,59,60] the carbon residual species formation, when chelating agents or organic additives were used in catalysts preparation. Some residual organic fragments issued from NTA decomposition were still presented on the alumina surface after sulfidation of the NTA containing catalysts at 400°C [59].…”

Section: Discussionmentioning

confidence: 98%

CoMo/Al2O3 catalysts prepared on the basis of Co2Mo10-heteropolyacid and cobalt citrate: Effect of Co/Mo ratio

Nikulshin

Можаев

Pimerzin

et al. 2012

Fuel

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Effect of ethyleneglycol addition on the properties of P-doped NiMo/Al2O3 HDS catalysts: Part I. Materials preparation and characterization

Cited by 59 publications

References 52 publications

A Rational Comparison of the Optimal Promoter Edge Decoration of HDT NiMoS vs CoMoS Catalysts

A Rational Comparison of the Optimal Promoter Edge Decoration of HDT NiMoS vs CoMoS Catalysts

Maleic acid, an efficient additive for the activation of regenerated CoMo/Al2O3 hydrotreating catalysts

CoMo/Al2O3 catalysts prepared on the basis of Co2Mo10-heteropolyacid and cobalt citrate: Effect of Co/Mo ratio

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