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In situ XAS study on the mechanism of reactive adsorption desulfurization of oil product over Ni/ZnO
Huang, LC; Wang, GF; Qin, ZF; Dong, M; Du, MX; Ge, H; Li, XK; Zhao, YD; Zhang, J; Hu, TD; Wang, JG; Zhao YD(赵屹东); Zhang J(张静); Hu TD(胡天斗)
2011
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL
卷号106期号:1-2页码:26-38
通讯作者[Huang, Lichun ; Wang, Guofu ; Qin, Zhangfeng ; Dong, Mei ; Du, Mingxian ; Ge, Hui ; Li, Xuekuan ; Wang, Jianguo] Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China ; [Huang, Lichun] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China ; [Zhao, Yidong ; Zhang, Jing ; Hu, Tiandou] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
摘要Reactive adsorption desulfurization (RADS) of a model oil n-nonane containing dibenzothiophene (DBT) was conducted over a Ni/ZnO adsorbent; the evolution of Ni/ZnO adsorbent structure during desulfurization was monitored by in situ X-ray absorption spectroscopy (XAS). The reaction mechanism under different atmospheres and the role of hydrogen in the desulfurization were investigated. The results indicated that the desulfurization processes under nitrogen and hydrogen are different in the reaction mechanism. In nitrogen, the desulfurization over Ni/ZnO is achieved through physical and chemical adsorption; a severe decrease in the desulfurization activity of Ni/ZnO is observed with the time on stream and the desulfurization capacity is very low. In hydrogen, the desulfurization turns to be a reactive adsorption process and Ni/ZnO exhibits a high desulfurization activity and capacity. Hydrogen plays an important role in the RADS; it facilitates the decomposition of DBT on active Ni species, the formation of Ni3S2, and thereafter the transfer of sulfur to ZnO. Metallic Ni as the active nickel species is preserved until most of ZnO is converted to ZnS. On the basis of these observations, a possible sulfur transfer mechanism for the RADS is then proposed. (C) 2011 Elsevier B.V. All rights reserved.
文章类型Article
关键词In situ XAS Ni/ZnO Reactive adsorption desulfurization Dibenzothiophene Sulfur transfer
学科领域Chemistry; Engineering
DOI10.1016/j.apcatb.2011.05.001
研究领域[WOS]Chemistry ; Engineering
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语种英语
WOS类目Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS记录号WOS:000293105100003
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被引频次:34[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/236795
专题多学科研究中心
实验物理中心
粒子天体物理中心
作者单位中国科学院高能物理研究所
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Huang, LC,Wang, GF,Qin, ZF,et al. In situ XAS study on the mechanism of reactive adsorption desulfurization of oil product over Ni/ZnO[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2011,106(1-2):26-38.
APA Huang, LC.,Wang, GF.,Qin, ZF.,Dong, M.,Du, MX.,...&胡天斗.(2011).In situ XAS study on the mechanism of reactive adsorption desulfurization of oil product over Ni/ZnO.APPLIED CATALYSIS B-ENVIRONMENTAL,106(1-2),26-38.
MLA Huang, LC,et al."In situ XAS study on the mechanism of reactive adsorption desulfurization of oil product over Ni/ZnO".APPLIED CATALYSIS B-ENVIRONMENTAL 106.1-2(2011):26-38.
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