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Preparation of NiW/TiO2-(AlO3)-O-2 hydrodesulfurization catalyst with microwave technique
Liu, BJ; Zha, XJ; Meng, QM; Hou, HJ; Gao, SS; Zhang, JX; Sheng, SS; Yang, WS
关键词Microwave Nickel Oxide Tungsten Oxide Titania Alumina Supported Catalyst Thiophene Hydrodesulfurization
刊名CHINESE JOURNAL OF CATALYSIS
2005-06-01
26期:6页:458-462
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]NIMO/TIO2-AL2O3 CATALYSTS ; MIXED OXIDES ; SUPPORT ; MO
英文摘要The NiW/TiO2-Al2O3 catalyst samples were prepared by conventional drying method (CON-Cat) and by microwave irradiation method (MW-Cat and MW-Cat1). The catalyst samples werv characterized with NH3-temperature- programmed desorption, Py-FT-IR, temperature-programmed reduction, and temperature-programmed sulfurization techniques. The hydrodesulfurization (HDS) reactivity of thiophene over them was studied in a fixed-bed microreactor. The thiophene conversion over MW-Cat increased from 70.9% at 16 h to 71.8% at 19 h, while the thiophene conversion over MW-Cat1 kept to 71% after 17 h and then increased very slowly. The HDS reactivity over CON-Cat increased slowly after 15 h and the thiophene conversion increased from 63.3% at 15 h to 69.4% at 19 h. The activity difference between CON-Cat and MW-Cat was due to the different sulfidation performance. MW-Cat or MW-Cat1 could be sulfided to sonic extent by using shorter time than CON-Cat. The surface acidic properties of MW-Cat and MW-Cat1 were changed with microwave irradiation power and time. The amounts of weak and medium acid sites in MW-Cat and MW-Cat1 increased, while that of strong acid sites decreased. The strength order of weak and medium acids was MW-Cat < MW-Cat1 < CON-Cat. MW-Cat and MW-Cat1 were favorable for their sulfurization and had higher activity than CON-Cat because more active species were formed in MW-Cat and MW-Cat1 with microwave irradiation. *MW-Cat and MW-Cat1 were more favorable for their reduction than CON-Cat.
语种英语
WOS记录号WOS:000230445000008
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139716
专题中国科学院大连化学物理研究所
作者单位1.Univ Petr, Key Lab Catalysis, China Natl Petr Corp, Beijing 102249, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Liu, BJ,Zha, XJ,Meng, QM,et al. Preparation of NiW/TiO2-(AlO3)-O-2 hydrodesulfurization catalyst with microwave technique[J]. CHINESE JOURNAL OF CATALYSIS,2005,26(6):458-462.
APA Liu, BJ.,Zha, XJ.,Meng, QM.,Hou, HJ.,Gao, SS.,...&Yang, WS.(2005).Preparation of NiW/TiO2-(AlO3)-O-2 hydrodesulfurization catalyst with microwave technique.CHINESE JOURNAL OF CATALYSIS,26(6),458-462.
MLA Liu, BJ,et al."Preparation of NiW/TiO2-(AlO3)-O-2 hydrodesulfurization catalyst with microwave technique".CHINESE JOURNAL OF CATALYSIS 26.6(2005):458-462.
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