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学科主题: 物理化学
题名: Hydrodesulfurization of 4,6-DMDBT on a multi-metallic sulfide catalyst with layered structure
作者: Wang, Lu1;  Zhang, Yongna1;  Zhang, Yuliang1;  Liu, Peng1;  Han, Hongxian1;  Yang, Min1;  Jiang, Zongxuan1;  Li, Can1
通讯作者: 蒋宗轩 ;  李灿
关键词: Ultra-deep hydrodesulfurization ;  Multi-metallic sulfide catalyst ;  NiAl-LDH ;  4,6-Dimethyldibenzothiophene (4,6-DMDBT) ;  Layered structure
刊名: APPLIED CATALYSIS A-GENERAL
发表日期: 2011-02-28
DOI: 10.1016/j.apcata.2010.11.043
卷: 394, 期:1-2, 页:18-24
收录类别: SCI
文章类型: Article
部门归属: 5
项目归属: 503
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Life Sciences & Biomedicine
类目[WOS]: Chemistry, Physical ;  Environmental Sciences
摘要: Hydrodesulfurization of 4,6-DMDBT on a Multi-metallic Sulfide Catalyst with Layered Structure
研究领域[WOS]: Chemistry ;  Environmental Sciences & Ecology
英文摘要: A multi-metallic NiAlMoW catalyst with layered structure was prepared by surfactant-assisted co-precipitation method using NiAl-layered double hydroxide (NiAl-LDH) as the structure-directing template. By carefully tuning the composition of the layered structure and the synthesis conditions, we have prepared a series of Ni(m)Al(n)MoW catalysts. For the HDS of 4,6-DMDBT. NiAl(3)MoW-5 shows two times higher intrinsic catalytic activity (based on weight of active metals) compared to that of the commercial CoNiMoW/Al(2)O(3) catalyst. The sulfur content in the model compound could be reduced from 500 ppm to less than 20 ppm using this catalyst under the operation conditions of 3.0 MPa, 300 degrees C, a WHSV (weight hourly space velocity) of 9 h(-1), and H(2)/oil ratio of 800 Nm(3)/m(3). The synthesized catalysts were characterized by SEM. TEM, XRD, TG/DSC, nitrogen adsorption/desorption isotherms and XRF. This NiAlMoW catalyst has retained the unique layered structure of NiAl-LDH, which can facilitate uniform dispersion of the active species on both the surface and the edge of the layer. It was found that the layered structure has a great impact on the catalytic activity of the HDS reactions. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
关键词[WOS]: DOUBLE HYDROXIDES ;  DEEP DESULFURIZATION ;  SURFACE ;  DIBENZOTHIOPHENE ;  EPOXIDATION ;  DIESEL ;  HYDROTALCITE ;  CHALLENGES ;  CHEMISTRY ;  TUNGSTEN
语种: 英语
WOS记录号: WOS:000287996100003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115734
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian, Peoples R China

Recommended Citation:
Wang, Lu,Zhang, Yongna,Zhang, Yuliang,et al. Hydrodesulfurization of 4,6-DMDBT on a multi-metallic sulfide catalyst with layered structure[J]. APPLIED CATALYSIS A-GENERAL,2011,394(1-2):18-24.
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