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林产化学与工业

林产化学与工业 ›› 2012, Vol. 32 ›› Issue (6): 37-40.

• 1研究报告 • 上一篇    下一篇

超低酸性环境中Ru/C催化纤维二糖一步法制备山梨醇的研究

李计彪, 武书彬, 张军   

  1. 华南理工大学制浆造纸国家重点实验室, 广东 广州 510640
  • 收稿日期:2011-11-25 修回日期:1900-01-01 出版日期:2013-12-30 发布日期:2013-12-30
  • 通讯作者: 武书彬,教授,博士生导师,从事植物纤维类生物质化学结构、植物纤维类生物质转化为清洁能源和化工原料等方面的研究;E-mail:shubinwu@scut.edu.cn。

Direct Catalytic Conversion of Cellobiose into Sorbitol in Extremely Low Acid over Ruthenium Catalysts

LI Ji-biao, WU Shu-bin, ZHANG Jun   

  1. State Key Laboratory of Pulp and Paper Engineering,South China University of Technology, Guangzhou 510640, China
  • Received:2011-11-25 Revised:1900-01-01 Online:2013-12-30 Published:2013-12-30

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摘要： 以Ru/C为催化剂,在超低酸环境和氢气气氛下,将纤维二糖一步转化制备山梨醇。考察了反应温度、反应时间以及催化剂用量对山梨醇产率的影响。实验结果表明,在0.05%H3PO4环境,Ru/C催化剂用量15%,转速为600r/min,反应温度为458K以及3MPa氢气条件下反应1h,产物山梨醇的产率最高,可达到87.1%。同时,催化剂重复利用研究表明Ru/C是一种较理想的氢化反应催化剂,可重复利用且催化效率较高。

关键词: Ru/C, 超低酸, 纤维二糖, 山梨醇

Abstract: Ru/C catalyst and extremely low acid were employed for one-step conversion of cellobiose into sorbitol in the presence of hydrogen. Effects of reaction temperature, reaction time and catalyst usage on sorbitol yield were discussed. Experimental results showed that the highest sorbitol yield of 87.1% was obtained at reaction temperature of 458 K and catalyst usage of 15 % for 1 h under 3 MPa H2 with the stirring rate of 600 r/min. Meanwhile, catalyst recycling showed that Ru/C was an ideal hydrogenation catalyst with high catalytic efficiency, which could be recycled several times.

Key words: Ru/C, extremely low acid, cellobiose, sorbitol

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