催化学报 ›› 2014, Vol. 35 ›› Issue (5): 741-747.DOI: 10.1016/S1872-2067(14)60031-0

• 研究论文 • 上一篇    下一篇

水/二甲基亚砜体系中无机盐高效催化木糖脱水制备糠醛

王文菊a, 李慧玲a, 任俊莉a, 孙润仓a,b, 郑杰c, 孙广卫c, 刘世界a   

  1. a 华南理工大学制浆造纸工程国家重点实验室, 广东广州510640;
    b 北京林业大学生物质化学与技术研究所, 北京100083;
    c 大连工业大学辽宁省制浆造纸工程重点实验室, 辽宁大连116034
  • 收稿日期:2014-01-07 修回日期:2014-01-13 出版日期:2014-04-18 发布日期:2014-04-24
  • 通讯作者: 任俊莉,刘世界
  • 基金资助:

    广东省自然科学杰出青年基金(S20120011250);新世纪优秀人才支持计划(NCET-12-0194);全国优博论文作者专项资金(201169);广东省科技计划项目(2011B050400015);华南理工大学中央高校基本科研业务费专项资金(2014ZG0003).

An efficient process for dehydration of xylose to furfural catalyzed by inorganic salts in water/dimethyl sulfoxide system

Wenju Wanga, Huiling Lia, Junli Rena, Runcang Suna,b, Jie Zhengc, Guangwei Sunc, Shijie Liua   

  1. a State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China;
    b Institute of Biomass Chemistry and Technology, Beijing Forestry University, Beijing 100083, China;
    c Liaoning Key Laboratory of Pulp and Paper Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, China
  • Received:2014-01-07 Revised:2014-01-13 Online:2014-04-18 Published:2014-04-24
  • Supported by:

    This work was supported by Guangdong Natural Science Funds for Distinguished Young Scholar (S20120011250), Program for New Century Excellent Talents in University (NCET-12-0194), Foundation for the Author of National Excellent Doctoral Dissertation of China (201169), Science and Technology Project of Guangdong Province (2011B050400015), and the Fundamental Research Funds for the Central Universities (2014ZG0003), South China University of Technology.

摘要:

提出了一种高效的均相催化木糖制备糠醛的方法,探讨了水/二甲基亚砜(DMSO)均相体系中不同类型的无机盐对催化木糖制备糠醛的影响. 结果表明,氯盐较硫酸盐和硝酸盐表现出较高的催化活性,其中以SnCl4的催化效果最高. 且它与LiCl复配时催化性能更高. 当SnCl4的摩尔分数为0.8时,催化效果最好,糠醛收率达56.9%. 反应条件优化实验发现,当催化剂与木糖的摩尔比为0.5:1,固液比为1:20,水与DMSO体积比为5:5时,于130 ℃下反应6 h,糠醛收率达63%.

关键词: 木糖, 糠醛, 无机盐, 氯化锡, 氯化锂, 二甲基亚砜

Abstract:

An efficient homogeneous catalytic process was developed for the dehydration of xylose to furfural using inorganic salts as catalysts in a water/dimethyl sulfoxide (DMSO) system under mild condition. The effects of the types of inorganic salts were compared. The results showed that chlorides had higher catalytic performance than other salts, and SnCl4 was the most effective chloride. The catalytic activity of paired SnCl4/LiCl catalysts was much higher than that of the single salt, and when the distribution coefficient (χSnCl4) was 0.8, the maximum furfural yield was 56.9%. The effects of the reaction conditions on the furfural yield were also investigated. The highest furfural yield, 63.0%, was achieved at 130 ℃ for 6 h under the optimized reaction conditions.

Key words: Xylose, Furfural, Inorganic salt, Stannic chloride, Lithium chloride, Dimethyl sulfoxide