DICP OpenIR
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
KeywordEthanol N-butanol Nickel Hydrotalcite Acid-base Sites
Source PublicationJOURNAL OF CATALYSIS
2016-12-01
DOI10.1016/j.jcat.2016.08.024
Volume344Pages:184-193
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordHYDROTALCITE-TYPE PRECURSORS ; LAYERED DOUBLE HYDROXIDES ; AL MIXED OXIDES ; GAS-PHASE ; BIO-ETHANOL ; METAL ; CONVERSION ; HYDROXYAPATITE ; 1-BUTANOL ; NANOPARTICLES
AbstractEthanol 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.
Language英语
WOS IDWOS:000390182800018
Citation statistics
Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/151833
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
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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