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Upgrading ethanol to n-butanol over highly dispersed Ni-MgAlO catalysts
Pang, Jifeng1; Zheng, Mingyuan1; He, Lei1,2; Li, Lin1; Pan, Xiaoli1; Wang, Aiqin1; Wang, Xiaodong1; Zhang, Tao1
关键词Ethanol N-butanol Nickel Hydrotalcite Acid-base Sites
刊名JOURNAL OF CATALYSIS
2016-12-01
DOI10.1016/j.jcat.2016.08.024
344页:184-193
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]HYDROTALCITE-TYPE PRECURSORS ; LAYERED DOUBLE HYDROXIDES ; AL MIXED OXIDES ; GAS-PHASE ; BIO-ETHANOL ; METAL ; CONVERSION ; HYDROXYAPATITE ; 1-BUTANOL ; NANOPARTICLES
英文摘要Ethanol is widely used as a fuel blender for gasoline. However, it has a low energy content and blending ratio. The fuel quality can be improved by upgrading ethanol to high-energy-content alcohols such as n-butanol. Here, we synthesized high-carbon alcohols from ethanol over Ni-based catalysts in a fixed-bed reactor. The selectivities for n-butanol and C-4-C-8 alcohols reached 55.2% and 85%, respectively, at 18.7% ethanol conversion over the optimal catalyst, Ni4MgAlO, with an areal reaction rate of 62.61 mu mol(-1) M-2 at 523 K. The effects of Ni promotion and acid-base site distributions of catalysts were investigated using various techniques. The results show that metallic Ni sites promoted ethanol dehydrogenation, and the released hydrogen spilled over the catalyst, leading to in situ hydrogenation of reaction intermediates. Strong basic and moderately acidic sites were needed for aldol condensation reactions. A reaction network was proposed based on product analysis under different conditions. (C) 2016 Elsevier Inc. All rights reserved.
语种英语
WOS记录号WOS:000390182800018
引用统计
被引频次:16[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/321008/151833
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, POB 110, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China
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GB/T 7714
Pang, Jifeng,Zheng, Mingyuan,He, Lei,et al. Upgrading ethanol to n-butanol over highly dispersed Ni-MgAlO catalysts[J]. JOURNAL OF CATALYSIS,2016,344:184-193.
APA Pang, Jifeng.,Zheng, Mingyuan.,He, Lei.,Li, Lin.,Pan, Xiaoli.,...&Zhang, Tao.(2016).Upgrading ethanol to n-butanol over highly dispersed Ni-MgAlO catalysts.JOURNAL OF CATALYSIS,344,184-193.
MLA Pang, Jifeng,et al."Upgrading ethanol to n-butanol over highly dispersed Ni-MgAlO catalysts".JOURNAL OF CATALYSIS 344(2016):184-193.
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