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NiMo-MMO catalyst derived from LDHs precursors toward the deep hydrogenation of pyrene

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NiMo-MMO catalyst derived from LDHs precursors toward the deep hydrogenation of pyrene
A series of Ni-based catalysts were prepared via structural topological transformation from the Ni@Al2O3 layered double hydroxides(LDHs)precursors,and applied for the deep catalytic hydrogenation satura-tion of pyrene in a high-pressure reactor.The pore structures,active species dispersion,surface morphology,amount and type of acid of the prepared catalysts were characterized by BET,XRD,SEM,TEM,XPS,SEM,NH3-TPD and Py-IR.We studied the influence of physicochemical properties of Ni-based catalysts on the regularity and mechanism of deep hydrogenation of pyrene.Meanwhile,the synergy between Ni and Mo,and the interaction between active metals and support were discussed to further reveal the constitutive relationship during the hydrogenation reaction of pyrene.The results of the evaluation of the catalytic hydrogenation of pyrene show that the as-prepared NiMo mixed metal oxide(MMO)catalyst showed excellent catalytic activity:～95％pyrene conversion,90.12％for the selectivity of deep hydrogenation products(hexahydropyrene,decahydropyrene and hexadecahydropyrene).It was expected that the successfully preparation and utilization of NiMo-MMO catalyst could provide a theoretical basis for the design of this kind of catalysts for deep catalytic hydrogenation of polycyclic aromatic hydrocarbons(PAHs).

Ni@Al2O3LDHsStructural topological transformationmethodNiMo-MMO catalystPyrene deep hydrogenation

Yongliang Jia、Boyang Bai、Jing Wang、Yueyi Wang、Zheng Wang、Xiaoxun Ma

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School of Chemical Engineering,Northwest University,Xi'an 710069,China

International Scientific and Technological Cooperation Base of the Ministry of Science and Technology(MOST)for Clean Utilization of Hydrocarbon Resources,Xi'an 710069,China

Chemical Engineering Research Center of the Ministry of Education(MOE)for Advanced Use Technology of Shanbei Energy,Xi'an 710069,China

Shaanxi Research Center of Engineering Technology for Clean Coal Conversion,Xi'an 710069,China

Collaborative Innovation Center for De

College of Chemistry and Materials Science,Weinan Normal University,Weinan 714000,China

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Ni@Al2O3LDHs Structural topological transformation method NiMo-MMO catalyst Pyrene deep hydrogenation

2024

10.1016/j.cjche.2024.09.010

中国化学工程学报(英文版)
中国化工学会

中国化学工程学报(英文版)

CSTPCDEI
影响因子：0.818
ISSN：1004-9541
年,卷(期)：2024.76(12)