Lishan Zheng, Sitan Wang, Shifeng Lou, Kande Liu, Xuan Meng, Naiwang Liu, Li Shi
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Supported Ni-W Bimetallic Catalysts for Hydrogenation of Poly-Alpha-Olefins Synthetic Base Oil
A series of Ni-W bimetallic catalysts were prepared by Ni2O3 and WO3 on porous materials and used in a fixed bed reactor for the hydrogenation of poly alpha-olefin base oil synthesis. The catalysts were characterized by N2 adsorption–desorption, XRD, H2-TPR, H2-TPD, XPS, TEM and ICP-OES to investigate the catalytic activity and explore the possible deactivation mechanism. Under the optimal reaction conditions of 250℃, 4 MPa, LHSV = 3 h−1 and H2: PAO = 200, the Ni5W1/Clay catalyst with 5% nickel and 1% tungsten loading can make the hydrogenation conversion rate as high as 100%, and the catalyst deactivation is not obvious within 8 h. The addition of W led to the reduction of the metal particle size as well as the formation of more dispersed active sites, thus improve its catalytic activity.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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