Gas-Phase Hydrogenolysis of Glycerol Catalyzed by Cu/MOx Catalysts

被引：35

作者：

Feng, Yonghai ^{[1
]}

Yin, Hengbo ^{[1
]}

Shen, Lingqin ^{[1
]}

Wang, Aili ^{[1
]}

Shen, Yutang ^{[1
]}

Jiang, Tingshun ^{[1
]}

机构：

[1] Jiangsu Univ, Fac Chem & Chem Engn, Zhenjiang 212013, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2013年 / 36卷 / 01期

关键词：

Ethylene glycol; Glycerol; Hydroxyacetone; Propanediol; Supported copper catalysts; SELECTIVE HYDROGENOLYSIS;

D O I：

10.1002/ceat.201200263

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The catalytic activities of Cu/MOx (MOx = Al2O3, TiO2, and ZnO) catalysts in the gas-phase hydrogenolysis of glycerol were studied at 180-300 degrees C under 0.1MPa of H-2. Cu/MOx (MOx = Al2O3, TiO2, and ZnO) catalysts were prepared by the incipient wetness impregnation method. After reduction, CuO species were converted to metallic copper (Cu-0). Cu/Al2O3 catalysts with high acidity, high specific surface areas and small metallic copper size favored the formation of 1,2-propanediol with a maximum selectivity of 87.9% at complete conversion of glycerol and a low reaction temperature of 180 degrees C, and favored the formation of ethylene glycol and monohydric alcohols at high reaction temperature of 300 degrees C. Cu/TiO2 and Cu/ZnO catalysts exhibited high catalytic activity toward the formation of hydroxyacetone with a selectivity of approx. 90% in a wide range of reaction temperature.

引用

页码：73 / 82

页数：10

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