Supported Cu catalysts for the selective hydrogenolysis of glycerol to propanediols
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Guo, Liyuan
- 通讯作者：
- Zhang, SG (reprint author), Dalian Univ, Coll Environm & Chem Engn, Dalian 116622, Peoples R China.
- 合写作者：
- Zhou, Jinxia,Mao, Jingbo,Guo, Xinwen,Zhang, Shuguang
- 发表时间：
- 2009-10-01
- 发表刊物：
- APPLIED CATALYSIS A-GENERAL
- 收录刊物：
- SCIE、EI、Scopus
- 文献类型：
- J
- 卷号：
- 367
- 期号：
- 1-2
- 页面范围：
- 93-98
- ISSN号：
- 0926-860X
- 关键字：
- Glycerol; Hydrogenolysis; Propanediol; Copper; Support
- 摘要：
- Supported Cu catalysts were synthesized and applied to convert glycerol, a renewable feedstock, to value-added propanediols. Among these catalysts, the gamma-Al(2)O(3) supported Cu catalysts showed superior performance. Unlike most supported precious metal catalysts, the scission of C-C bonds was successfully suppressed on the Cu/Al(2)O(3) catalysts without a sacrifice of glycerol conversion. The experimental results combined with the characterization studies using temperature programmed reduction (TPD) and X-ray diffraction (XRD) techniques revealed that the optimal Cu loading was 2.7 mmol of Cu metal/g of gamma-Al(2)O(3) and that the suitable pre-reduction temperature was 300 degrees C. The Cu/Al(2)O(3) catalyst with the optimized amount of Cu showed a selectivity to propanediols about 96.8% with a glycerol conversion about 49.6% under mild reaction conditions (220 degrees C, 1.5 MPa initial H(2) pressure, 10 h, Cu/glycerol molar ratio 3: 100). Compared with a commonly used commercial copper chromite catalyst, the Cu/Al(2)O(3) Presented much higher activity, selectivity and Cu usage efficiency and is non-toxic. (C) 2009 Elsevier B.V. All rights reserved.
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