Liquid-Phase Hydrogenation of Naphthalene and Tetralin on Ni/Al2O3:  Kinetic Modeling

Rautanen, Petri A.; Lylykangas, Mikko S.; Aittamaa, Juhani; Krause, A.O.I.

doi:10.1021/ie020395q

Cited by 57 publications

(48 citation statements)

References 31 publications

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“…It was also found that the initial hydrogenation rate ( R 0 ) increases in the order: NL < BZ < ANC ( Table 1 , #4,10,11). In contrast to the data reported by Rautanen et al [ 20 ], who claimed that in condensed aromatics the first ring of diaromatic compounds (i.e., NL) is more reactive than the second one, in the case of Pt/HPS catalysts, NL was less reactive compared to BZ.…”

Section: Resultscontrasting

confidence: 89%

Noble Metal Nanoparticles Stabilized by Hyper-Cross-Linked Polystyrene as Effective Catalysts in Hydrogenation of Arenes

et al. 2021

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This work is addressing the arenes’ hydrogenation—the processes of high importance for petrochemical, chemical and pharmaceutical industries. Noble metal (Pd, Pt, Ru) nanoparticles (NPs) stabilized in hyper-cross-linked polystyrene (HPS) were shown to be active and selective catalysts in hydrogenation of a wide range of arenes (monocyclic, condensed, substituted, etc.) in a batch mode. HPS effectively stabilized metal NPs during hydrogenation in different medium (water, organic solvents) and allowed multiple catalyst reuses.

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Section: Resultscontrasting

confidence: 89%

Noble Metal Nanoparticles Stabilized by Hyper-Cross-Linked Polystyrene as Effective Catalysts in Hydrogenation of Arenes

et al. 2021

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“…Scheme 2 (a) shows a simplified reaction network for naphthalene hydrogenation. [49][50][51] In the presence of dibenzothiophene, the modeling of naphthalene hydrogenation was based on the following assumptions: (i) naphthalene is only hydrogenated to tetralin (TTL); (ii) naphthalene and tetralin competitively adsorb and react on both π and σ sites; and, (iii) naphthalene hydrogenation to tetralin is reversible. Table 3 presents the mechanism employed to describe naphthalene hydrogenation.…”

Section: Hydrogenation Of Naphthalene Simultaneous To the Hydrodesulfurization Of Dibenzothiophene (Dbtnp)mentioning

confidence: 99%

Kinetic assessment of the simultaneous hydrodesulfurization of dibenzothiophene and the hydrogenation of diverse polyaromatic structures

Morales-Valencia¹,

Castillo‐Araiza²,

Giraldo³

et al. 2017

Preprint

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The work presents a kinetic study of the simultaneous hydrodesulfurization of dibenzothiophene and hydrogenation of aromatics with different chemical structures. This kind of studies are seldom reported, since many authors deal almost exclusively with hydrodesulfurization. Furthermore, most of these authors employ power rate laws for kinetic modelling neglecting a rigorous analysis of the thermodynamic parameters of the reactions; namely, adsorption enthalpies and entropies. Considering this fact, we decided to base our kinetic modelling on a Langmuir-Hinshelwood-Hougen-Watson (LHHW) formalism testing the hypothesis of the existence of one or two different catalytic sites for hydrogenation and desulfurization. The consistency of the aforementioned thermodynamic parameters was assessed considering the criteria postulated by Boudart.Our results allowed concluding that a LHHW model considering two actives sites provides a statically satisfactory fitting of experimental data. In addition, it was possible to determine that inhibition effects of aromatics on hydrodesulfurization exist but depend to some extent on the molecular structure of the aromatic.On the other hand, this work also contributes by providing experimental values of adsorption constants of compounds reacting under hydrotreatment conditions which despite the significant advances in theoretical calculations are not yet available in open literature.

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“…四氢化萘在催化剂 Ni/Al 2 O 3 表面存在三种不同的吸附方式, 吸附平衡时是以 π 键和 σ 键的方式吸附, 过渡态时为 π/σ 复合吸附方式. 垂直方式的 σ 键吸附会导致 H 从芳香环上断裂 [12] . 四氢化萘脱氢过程经历了二氢化萘中间体, 最终脱氢形成萘.…”

Section: 环己烷在常温常压下为液体稳定性好具有较高的储氢密度(质量密度为 72 Wt% 高于美国能源部unclassified

Development of Dehydrogenation Catalyst for Reversible Hydrogen Storage in Organic Hydrides

Qi¹,

Huang²,

Chen³

et al. 2012

Acta Chim. Sinica

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The research of dehydrogenation catalyst for organic hydrides is the key to the cycle of reversible hydrogen storage technology in organic hydrides. The mechanisms of dehydrogenation reaction of several different organic hydrides in the cycle process of hydrogen storage are analyzed. In order to predict the dehydrogenation performance of different active components, the design of catalyst by means of combining density functional theory (DFT) with experiment examples is investigated. And then the development of dehydrogenation catalyst for organic hydrides was reviewed from active components of the catalyst, the choices of corresponding support, preparation methods, structure-activity relationship and other aspects. The performance of dehydrogenation using different mono-metal and bimetallic alloy catalysts was discussed; the changes in the catalyst structure and the catalytic properties influenced by different carriers and modification of the carriers were compared; the relationship between preparation methods and internal structure-activity of catalysts was investigated. It is proposed that in order to get the dehydrogenation catalyst with good catalytic activity, the rational design of organic hydrides dehydrogenation catalyst for the reversible hydrogen storage should be the integration of DFT theoretical prediction, surface science experiments and advanced catalyst synthesis methods.

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Liquid-Phase Hydrogenation of Naphthalene and Tetralin on Ni/Al₂O₃: Kinetic Modeling

Cited by 57 publications

References 31 publications

Noble Metal Nanoparticles Stabilized by Hyper-Cross-Linked Polystyrene as Effective Catalysts in Hydrogenation of Arenes

Noble Metal Nanoparticles Stabilized by Hyper-Cross-Linked Polystyrene as Effective Catalysts in Hydrogenation of Arenes

Kinetic assessment of the simultaneous hydrodesulfurization of dibenzothiophene and the hydrogenation of diverse polyaromatic structures

Development of Dehydrogenation Catalyst for Reversible Hydrogen Storage in Organic Hydrides

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