Ni or Ru supported on MgO/-Al2O3 pellets for the catalytic conversion of ethanol into butanol

被引：23

作者：

Apuzzo, J. ^{[1
]}

Cimino, S. ^{[1
]}

Lisi, L. ^{[1
]}

机构：

[1] CNR, Ist Ric Combust, Ple Tecchio 80, I-80125 Naples, Italy

来源：

RSC ADVANCES | 2018年 / 8卷 / 45期

基金：

欧盟地平线“2020”;

关键词：

HETEROGENEOUS CATALYSTS; MG; HYDROTALCITE; OXIDES; 1-BUTANOL; OXIDATION; ALCOHOLS; HYDROGEN; RATIO;

D O I：

10.1039/c8ra04310h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ni- and Ru-based catalytic pellets supported on commercial -Al2O3 pellets modified with magnesium oxide have been prepared for application in the catalytic conversion of ethanol into butanol. MgO/-Al2O3 pellets with or without added metals have been characterized by XRD, SEM/EDX, TGA, N-2 physisorption, H-2 TPR, and CO2 TPD in order to investigate the effect of MgO coverage and metal distribution on the surface and red-ox properties of the materials and, in turn, their effects on the catalytic performance. The conversion of ethanol into butanol has been investigated in a continuous flow reactor at 350-400 degrees C under diluted conditions (3% ethanol) in order to rank the different catalytic pellets and identify the best formulations and preparation procedures via a comparison with powder catalysts previously proposed in the literature with similar compositions. Results show enhanced catalytic performance for MgO-covered alumina pellets with respect to a pure MgO powder catalyst in spite of the lower MgO load. A significant further positive effect is found when Ni or Ru enters a solid solution with MgO.

引用

页码：25846 / 25855

页数：10

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