The conversion of glycerol to lactic acid catalyzed by ZrO2-supported CuO catalysts

被引：113

作者：

Yang, Gao-Yuan ^{[1
]}

Ke, Yi-Hu ^{[1
]}

Ren, Hui-Fang ^{[1
]}

Liu, Chun-Ling ^{[1
]}

Yang, Rong-Zhen ^{[1
]}

Dong, Wen-Sheng ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Appl Surface & Colloid Chem SNNU, MOE, Xian 710062, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2016年 / 283卷

关键词：

Glycerol; Lactic acid; Oxidation; Cupric oxide; Zirconia; Copper; BASE-FREE; SELECTIVE OXIDATION; BIOMASS; HYDROGENOLYSIS; CARBON; DIHYDROXYACETONE; DERIVATIVES; COMBUSTION; DESIGN;

D O I：

10.1016/j.cej.2015.08.027

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Zirconia-supported copper oxide catalysts with various compositions were prepared and characterized by atomic absorption spectroscopy, N-2 physical adsorption, temperature programmed reduction, powder X-ray diffraction and X-ray photoelectron spectroscopy. These catalysts were evaluated for the conversion of glycerol to lactic acid in aqueous solution in the presence of a base and under an inert atmosphere. The results showed that CuO/ZrO2 with 30% Cu loading exhibited the highest activity for the conversion of glycerol. Under optimum conditions, 100% glycerol conversion and 94.6% selectivity for lactic acid were obtained over 30%CuO/ZrO2 when reacting 10 mL of glycerol solution (1.4 M), using 0.2 g catalyst in the presence of NaOH (1:1 NaOH/glycerol molar ratio) at 453 K and 1.4 MPa N-2 for 8 h. Moreover, the reusability of 30%CuO/ZrO2 was investigated, and a reaction mechanism for the conversion of glycerol is proposed. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：759 / 767

页数：9

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