| 常压两步法催化丙三醇脱水-加氢制备 1,2-丙二醇 |
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| 引用本文： | 赵静,于维强,李德财,马红,高进,徐杰.常压两步法催化丙三醇脱水-加氢制备 1,2-丙二醇[J].催化学报,2010,31(2):200-204. |
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| 作者姓名： | 赵静 于维强 李德财 马红 高进 徐杰 |
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| 作者单位： | 1. 中国科学院大连化学物理研究所,辽宁大连,116023;中国科学院研究生院,北京,100049
2. 中国科学院大连化学物理研究所,辽宁大连,116023 |
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| 基金项目： | 国家自然科学基金(20803074) |
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| 摘 要： | 在常压 H2 气氛下催化丙三醇脱水-加氢制备了 1,2-丙二醇. 首先在 220 oC 和常压 H2 条件下, 以 Cu/Al2O3 为催化剂催化丙三醇脱水生成中间体丙酮醇, 其选择性高达 86%. 考察了 Cu 负载量、反应温度和反应气氛对催化剂性能的影响. 在随后的丙酮醇加氢反应中, Raney Ni 催化剂显示出优异的催化性能, 在 120 oC 和常压 H2 条件下, 1,2-丙二醇选择性可达 99% 以上, 催化剂连续使用 5 h 未出现失活现象. 考察了反应温度、空速及反应时间对催化剂性能的影响.
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| 关 键 词： | 常压 丙三醇 丙酮醇 2-丙二醇 脱水 加氢 铜基催化剂 镍基催化剂 |
| 收稿时间： | 2010-02-25 |
Catalytic Dehydration-Hydrogenation of Glycerol to 1,2-Propylene Glycol at Ambient Hydrogen Pressure |
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| ZHAO Jing,YU Weiqiang,LI Decai,MA Hong,GAO Jin,XU Jie.Catalytic Dehydration-Hydrogenation of Glycerol to 1,2-Propylene Glycol at Ambient Hydrogen Pressure[J].Chinese Journal of Catalysis,2010,31(2):200-204. |
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| Authors: | ZHAO Jing YU Weiqiang LI Decai MA Hong GAO Jin XU Jie |
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| Institution: | 1Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The novel technology for synthesis of 1,2-propylene glycol by dehydration-hydrogenation of glycerol at ambient hydrogen pressure was reported. Dehydration of glycerol to acetol was catalyzed by Cu/Al2O3 catalyst. A 86% selectivity for acetol was achieved at 220 oC and ambient hydrogen pressure. The effects of copper loading,reaction temperature,and reaction atmosphere on the catalyst performance were studied. Raney Ni catalyst showed excellent catalytic performance in the hydrogenation of acetol to 1,2-prop... |
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| Keywords: | ambient pressure glycerol acetol 1 2-propylene glycol dehydration hydrogenation copper catalyst nickel catalyst |
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