Upgrading ethanol to n-butanol over highly dispersed Ni-MgAlO catalysts
文献类型:期刊论文
作者 | He, Lei1,2; Li, Lin1; Pan, Xiaoli1; Pang, Jifeng1; Zheng, Mingyuan1; Wang, Aiqin1; Wang, Xiaodong1; Zhang, Tao1 |
刊名 | JOURNAL OF CATALYSIS
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出版日期 | 2016-12-01 |
卷号 | 344页码:184-193 |
关键词 | Ethanol n-Butanol Nickel Hydrotalcite Acid-base sites |
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. |
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 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000390182800018 |
源URL | [http://cas-ir.dicp.ac.cn/handle/321008/151833] ![]() |
专题 | 大连化学物理研究所_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 |
推荐引用方式 GB/T 7714 | He, Lei,Li, Lin,Pan, Xiaoli,et al. Upgrading ethanol to n-butanol over highly dispersed Ni-MgAlO catalysts[J]. JOURNAL OF CATALYSIS,2016,344:184-193. |
APA | He, Lei.,Li, Lin.,Pan, Xiaoli.,Pang, Jifeng.,Zheng, Mingyuan.,...&Zhang, Tao.(2016).Upgrading ethanol to n-butanol over highly dispersed Ni-MgAlO catalysts.JOURNAL OF CATALYSIS,344,184-193. |
MLA | He, Lei,et al."Upgrading ethanol to n-butanol over highly dispersed Ni-MgAlO catalysts".JOURNAL OF CATALYSIS 344(2016):184-193. |
入库方式: OAI收割
来源:大连化学物理研究所
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