| 甘油氢解用固体超强碱负载的铜催化剂 |
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| 引用本文： | 郑丽萍,袁振乐,夏水鑫,陈平,侯昭胤.甘油氢解用固体超强碱负载的铜催化剂[J].化工学报,2015,66(8):3014-3021. |
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| 作者姓名： | 郑丽萍 袁振乐 夏水鑫 陈平 侯昭胤 |
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| 作者单位： | 浙江大学化学系催化研究所, 浙江 杭州 310028 |
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| 基金项目： | 国家自然科学基金项目(21473155，21273198，21073159)；浙江省自然科学基金项目(LZ12B03001)。 |
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| 摘 要： | 用浸渍-燃烧法制备了固体超强碱MgO-CaO和MgO-SrO负载的高分散铜基催化剂,并将其用于甘油氢解制备1,2-丙二醇的反应。N2吸附、X射线衍射、透射电子显微镜、H2程序升温还原和N2O氧化吸附及CO2程序升温脱附等表征实验结果显示:Cu粒子均分散于Cu/MgO-CaO(或者Cu/MgO-SrO)催化剂的表面;与Cu/MgO相比,Cu/MgO-CaO和Cu/MgO-SrO具有更强的碱性,可以加速甘油的转化。上述结果表明,甘油氢解反应中铜催化剂的活性随碱性的增强而增加。
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| 关 键 词： | 生物柴油 甘油 氢解 1 2-丙二醇 固体碱 |
| 收稿时间： | 2015-05-21 |
| 修稿时间： | 2015-05-26 |
Super solid-base supported Cu catalysts for hydrogenolysis of glycerol to 1,2-propanediol |
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| ZHENG Liping,YUAN Zhenle,XIA Shuixin,CHEN Ping,HOU Zhaoyin.Super solid-base supported Cu catalysts for hydrogenolysis of glycerol to 1,2-propanediol[J].Journal of Chemical Industry and Engineering(China),2015,66(8):3014-3021. |
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| Authors: | ZHENG Liping YUAN Zhenle XIA Shuixin CHEN Ping HOU Zhaoyin |
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| Affiliation: | Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou 310028, Zhejiang, China |
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| Abstract: | Highly dispersed copper nanoparticles supported on combined alkaline-earth metal oxides MgO-CaO and MgO-SrO were synthesized by impregnation-combustion method and used for hydrogenolysis of glycerol. The nanoparticles were characterized using N2-adsorption, X-ray diffraction, transmission electronic microscope, temperature-programmed reduction with H2, dissociative N2O adsorption and CO2 temperature-programmed desorption. The results revealed that Cu particles dispersed highly on the surface of Cu/MgO-CaO and Cu/MgO-SrO catalyst. The enhanced alkalinity of Cu/MgO-CaO and Cu/MgO-SrO accelerated the conversion of glycerol compared to Cu/MgO. It was concluded that the activity of Cu-based catalyst increased with its alkalinity. |
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| Keywords: | biodiesel glycerol hydrogenolysis 1 2-propanediol solid-base |
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