Preparation of highly active unsupported Ni–Si–Mo catalyst for the deep hydrogenation of aromatics

Yin, Changlong; Wu, Tongtong; Dong, Chengwu; Fan, Li; Liu, Dong; Liu, Chenguang

doi:10.1016/j.jallcom.2020.155076

Cited by 5 publications

(3 citation statements)

References 32 publications

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“…Hydrogenation of polyaromatic hydrocarbons, for example, naphthalene and phenanthrene, are key reactions in the hydrotreating process, as they determine the efficiency of the hydrotreating process 4–8 . A large number of catalysts have been developed for the hydrogenation of polyaromatic hydrocarbons, including both noble metal and transition metal catalysts 9–16 . Noble metal catalysts have outstanding activity and selectivity, but very poor stability due to their low resistance to poisons 9–12 .…”

Section: Introductionmentioning

confidence: 99%

“…hydrocarbons, including both noble metal and transition metal catalysts. [9][10][11][12][13][14][15][16] Noble metal catalysts have outstanding activity and selectivity, but very poor stability due to their low resistance to poisons. [9][10][11][12] Moreover, the high cost and scarce resource of noble metals restrict their large-scale application in industry.…”

mentioning

confidence: 99%

“…[9][10][11][12][13][14][15][16] Noble metal catalysts have outstanding activity and selectivity, but very poor stability due to their low resistance to poisons. [9][10][11][12] Moreover, the high cost and scarce resource of noble metals restrict their large-scale application in industry.…”

mentioning

confidence: 99%

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Detailed understanding on thermodynamic and kinetic features of phenanthrene hydroprocessing on Ni‐Mo/HY catalyst

et al. 2022

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Phenanthrene hydrogenation is a key reaction for improving the quality of gasoline and diesel. Herein, we conduct detailed thermodynamic and kinetic analyses for phenanthrene hydrogenation on a Ni-Mo/HY catalyst. We establish a comprehensive reaction network for phenanthrene hydrogenation, and calculate equilibrium constant, rate constant, adsorption constant, activation energy barrier, and reaction energy for each step in the reaction network. All of the steps in the reaction network are revealed to be exothermic. A kinetic model with 28 parameters is constructed for phenanthrene hydrogenation.The deviation of the product yields calculated by the kinetic model from those obtained in experiments is less than 4.5%, indicating the reasonability and accuracy of the kinetic model. The most favorable pathway for phenanthrene hydrogenation is demonstrated to be phenanthrene ! tetrahydrophenanthrene ! sym-octahydrophenanthrene ! 5,6-butyl-tetrahydronaphthalene ! tetralin. These results are helpful for efficiently tuning catalyst properties and optimizing reaction conditions for enhancing phenanthrene hydrogenation.

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Section: Introductionmentioning

confidence: 99%