首页|Hydrogenation of 2-methylnaphthalene over bi-functional Ni catalysts

Hydrogenation of 2-methylnaphthalene over bi-functional Ni catalysts

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  • Elsevier
Nickel catalysts were synthesized by incipient wetness impregnation and coprecipitation and compared to a commercial Ni/kieselguhr catalyst for selective hydrogenation of 2-methylnaphthalene to yield methyldecalin. The catalysts were characterized using N-2 physisorption, TGA, XRD, and TEM. The apparent activation energy for hydrogenation depends on the support identity, with the highest value (87 kJ/mol) obtained for Ni/SiO2- Al2O3 and the lowest (30 kJ/mol) for Ni/kieselguhr. The selectivity to cis-/trans-methyldecalin varied as a function of both catalyst identity and reaction conditions, with high selectivity to cis-methyldecalin obtained using catalysts with higher Ni loadings and at lower reaction temperatures. The impregnation of a precious metal onto coprecipitated Ni catalysts also changed their selectivity, as catalysts containing ruthenium selectively formed cis-methyldecalin, whereas platinum catalysts produced mostly trans-methyldecalin. This research demonstrates that Ni catalysts can be useful for producing inexpensive catalysts for hydrogenation of polyaromatic-containing feedstocks.

Aromatic hydrogenationNickel catalystsBifunctional catalystsCoprecipitated catalystscis/trans selectivityLIQUID-PHASE HYDROGENATIONNAPHTHALENE HYDROGENATIONAROMATIC-HYDROCARBONSTHERMAL DEOXYGENATIONBENZENE HYDROGENATIONSTRUCTURE-SENSITIVITYMILD HYDROCRACKINGZEOLITE1-METHYLNAPHTHALENETETRALIN

Kline, Matthew J.、Karunarathne, Sampath A.、Schwartz, Thomas J.、Wheeler, M. Clayton

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Univ Maine

2022

10.1016/j.apcata.2021.118462

Applied Catalysis

Applied Catalysis

ISSN：0926-860X
年,卷(期)：2022.630
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