高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (9): 2178.doi: 10.7503/cjcu20130258

• 物理化学 • 上一篇    下一篇

在Ni-B非晶态催化剂作用下生物油水相加氢制备饱和醇

于玉肖1,2, 张兴华1,2, 王铁军1, 徐莹1, 马隆龙1, 张琦1, 张丽敏3   

  1. 1. 中国科学院广州能源研究所, 中国科学院可再生能源重点实验室, 广州 510640;
    2. 中国科学院大学, 北京 100049;
    3. 长沙理工大学化学与生物工程学院, 长沙 410004
  • 收稿日期:2013-03-19 出版日期:2013-09-10 发布日期:2013-08-30
  • 作者简介:王铁军,男,博士,研究员,博士生导师,主要从事生物质能可再生能源研究.E-mail:wangtj@ms.giec.ac.cn
  • 基金资助:

    国家“八六三”计划项目(批准号:2012AA051801);国家自然科学基金国际(地区)合作与交流项目(批准号:51161140331)资助.

Investigation on the Aqueous-phase Hydrogenation of Bio-oil for Saturated Alcohols Production over Ni-B Amorphous Catalysts

YU Yu-Xiao1,2, ZHANG Xing-Hua1,2, WANG Tie-Jun1, XU Ying1, MA Long-Long1, ZHANG Qi1, ZHANG Li-Min3   

  1. 1. CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. College of Chemical and Biological Engineering, Changsha University of Science & Technology, Changsha 410004, China
  • Received:2013-03-19 Online:2013-09-10 Published:2013-08-30

摘要:

采用化学还原法制备了Ni-B和Ni-Co-B非晶态催化剂, 并采用X射线衍射(XRD)、BET比表面积、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和电感耦合等离子体光谱(ICP)进行了结构表征. 结果表明, 在110 ℃及氢冷压4.0 MPa时, 在Ni-B或Ni-Co-B催化下, 丙酮、糠醛和苯酚的转化率和饱和醇的选择性分别达到99.99% 和95.00%以上. 对于Ni-B催化生物油真实体系, 在150 ℃及氢冷压4.0 MPa下, 饱和醇的收率达到47.54%. 温度过高易导致催化剂转晶从而降低反应活性. 为生物油的有效利用和饱和多元醇的制备提供了新思路.

关键词: 生物油, Ni-B催化剂, 水相催化, 饱和醇

Abstract:

Ni-B amorphous catalysts were prepared by chemical reduction of nickel chloride with potassium borohydride aqueous solution and characterized by X-ray diffraction(XRD), Brunauer-Emmett-Tetter(BET), scanning electron microscopy(SEM), transmission electron microscopy(TEM), inductively coupled plasma(ICP) techniques. The catalytic performances of model compounds and bio-oil to produce saturated alcohols were evaluated in a semi-batch reactor. The results showed that the conversion of model compounds(acetone, furfural and phenol) and the selectivity of saturated alcohols reached 99.99% and 90.00% at 110 ℃, 4.0 MPa(initial pressure). Under the conditions of 150 ℃ and 4.0 MPa, the yield of saturated alcohols reached 47.54%. High temperature of above 150 ℃ resulted in the transformation of amorphous phase to form crystal, which was attributed to the low catalytic activity. This work provides a new alternative for the production of saturated alcohols from bio-oil.

Key words: Bio-oil, Ni-B catalyst, Aqueous-phase reforming, Saturated alcohol

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