期刊
RSC ADVANCES
卷 5, 期 90, 页码 74150-74158出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra12029b
关键词
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资金
- Conseil Regional du Nord-Pas de Calais
- European Regional Development Fund (ERDF)
- Fundamental Research Funds for the Central Universities [HIT. NSRIF. 2015046]
- Harbin Institute of Technology
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- Program Caiyuanpei between China (CSC) [30323NF]
- Program Caiyuanpei between France (Campus-France)
NiW catalysts supported on gamma-Al2O3 (NiW/Al2O3), commercial Beta (NiW/HB) and hierarchical Beta prepared by base-acid treatment (NiW/HB-M) were characterized by X-ray diffraction (XRD), N-2 sorption, infrared spectroscopy (IR), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The catalytic performance of these catalysts was evaluated in the hydrodesulfurization (HDS) of thiophene. The results indicate that NiW/HB as well as NiW/HB-M endured important and rapid deactivation showing that the introduction of additional mesopores/macropores in the support could not prevent the deactivation tendency. Interestingly, NiW/HB or NiW/HB-M mixed with NiW/Al2O3 and the utilization of Na+-exchanged Beta as a support remarkably improved the anti-deactivation ability of the catalysts. As a result, the catalysts NiW/NaB-M (NiW catalyst supported on Na+-exchanged hierarchical Beta) and NiW/20HB-M (20% NiW/HB-M mixed with 80% NiW/Al2O3) gave superior catalytic activity than NiW/Al2O3.
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