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Catalytic oxidative dehydrogenation of n-butane over V2O5/MO-Al2O3 (M = Mg, Ca, Sr, Ba) catalysts
Xu, Bing1,2; Zhu, Xuefeng2; Cao, Zhongwei1,2; Yang, Lina1; Yang, Weishen2
关键词Oxidative Dehydrogenation N-butane Butene Magnesia Alumina Vanadium Catalyst
刊名CHINESE JOURNAL OF CATALYSIS
2015-07-01
DOI10.1016/S1872-2067(15)60839-7
36期:7页:1060-1067
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]SUPPORTED VANADIUM-OXIDE ; VMGO CATALYSTS ; PROPANE ; REACTIVITY ; ETHANE ; GAMMA-AL2O3 ; ALKANES
英文摘要V2O5/MO-Al2O3(M = Mg, Ca, Sr, Ba) catalysts with different V2O5 loading were prepared by impregnation with ammonium metavanadate as the V precursor and characterized and tested for the selectively oxidative dehydrogenation of n-butane to butenes. Characterization by BET, XRD, FTIR, H-2-TPR and Raman spectra showed that the catalysts doped with different alkaline earth metals had different structure and catalytic activity. The catalysts doped with Ca, Sr or Ba had the orthovanadate phase that was difficult to reduce, so their redox cycles could not be established and they exhibited low activity. The catalysts doped with Mg showed high catalytic activity and selectivity. The catalyst with 5% V2O5 loading exhibited the highest n-butane conversion (30.3%) and total butene selectivity (64.3%) at 600 degrees C. This was due to the well dispersed VOx species and the existence of the MgO crystalline phase, which were both present at a V2O5 loading of 5%. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000356911400022
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146354
专题中国科学院大连化学物理研究所
作者单位1.Liaoning Shihua Univ, Sch Petrochem Engn, Fushun 113001, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
Xu, Bing,Zhu, Xuefeng,Cao, Zhongwei,et al. Catalytic oxidative dehydrogenation of n-butane over V2O5/MO-Al2O3 (M = Mg, Ca, Sr, Ba) catalysts[J]. CHINESE JOURNAL OF CATALYSIS,2015,36(7):1060-1067.
APA Xu, Bing,Zhu, Xuefeng,Cao, Zhongwei,Yang, Lina,&Yang, Weishen.(2015).Catalytic oxidative dehydrogenation of n-butane over V2O5/MO-Al2O3 (M = Mg, Ca, Sr, Ba) catalysts.CHINESE JOURNAL OF CATALYSIS,36(7),1060-1067.
MLA Xu, Bing,et al."Catalytic oxidative dehydrogenation of n-butane over V2O5/MO-Al2O3 (M = Mg, Ca, Sr, Ba) catalysts".CHINESE JOURNAL OF CATALYSIS 36.7(2015):1060-1067.
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