Selective hydrogenolysis of glycerol to propanediols on supported Cu-containing bimetallic catalysts
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Zhou, Jinxia
- 通讯作者：
- Zhou, JX (reprint author), Dalian Univ Technol, Coll Environm & Chem Engn, Dalian 116622, Peoples R China.
- 合写作者：
- Guo, Liyuan,Guo, Xinwen,Mao, Jingbo,Zhang, Shuguang
- 发表时间：
- 2010-01-01
- 发表刊物：
- GREEN CHEMISTRY
- 收录刊物：
- SCIE、Scopus
- 文献类型：
- J
- 卷号：
- 12
- 期号：
- 10
- 页面范围：
- 1835-1843
- ISSN号：
- 1463-9262
- 摘要：
- Supported Cu-containing bimetallic catalysts were prepared and used to convert glycerol to propanediols. The effects of supports, metals, metal loadings, and impregnation sequences were examined. A synergistic effect was observed between Cu and Ag when they were impregnated on gamma-Al(2)O(3). Characterizations revealed that the addition of Ag not only resulted in an in situ reduction of CuO, but also improved the dispersion of the Cu species on the support. A CuAg/Al(2)O(3) catalyst with optimal amounts of Cu and Ag (Cu/Ag molar ratio 7 : 3, 2.7 mmol Cu+Ag per gram of gamma-Al(2)O(3)) showed a near 100% selectivity to propanediols with a glycerol conversion of about 27% under mild reaction conditions (200 degrees C, 1.5 MPa initial H(2) pressure, 10 h, (Cu+Ag)/glycerol molar ratio of 3/100). Compared with a commercial copper chromite catalyst commonly used for this reaction, the CuAg/Al(2)O(3) catalyst had much higher activity and did not need a reduction pretreatment.
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- 否
