催化学报

催化学报 ›› 2010, Vol. 31 ›› Issue (11): 1393-1398.DOI: 10.3724/SP.J.1088.2010.00464

• 研究论文 • 上一篇    下一篇

碳助剂对完全液相法制备的 Cu-Zn-Al 催化剂性能的影响

黄伟, 李文辉, 孙景晓, 阴丽华   

  1. 太原理工大学煤科学与技术教育部和山西省重点实验室, 山西太原 030024
  • 收稿日期:2010-05-11 出版日期:2010-11-12 发布日期:2014-03-28

Effect of Carbon Promoters on the Performance of Cu-Zn-Al Catalyst Prepared by Complete Liquid-Phase Technology

HUANG Wei*, LI Wenhui, SUN Jingxiao, YIN Lihua   

  1. Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
  • Received:2010-05-11 Online:2010-11-12 Published:2014-03-28

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摘要： 采用完全液相法制备了 Cu-Zn-Al 催化剂, 研究了碳纳米管和碳微球的加入对该催化剂 CO 加氢合成低碳醇反应性能的影响, 并用 X 射线粉末衍射、氮气吸附、氢气程序升温还原和氨气程序升温脱附-质谱等方法对催化剂进行了表征. 结果表明, 用完全液相法制备的 Cu-Zn-Al 甲醇合成催化剂具有一定的合成低碳醇和低碳烃的能力, 这种能力归结于较大 Cu0 晶粒的产生. 一定量碳微球的加入可大大减小 Cu0 晶粒度, 从而大幅度提高甲醇选择性.

关键词: 铜, 锌, 铝, 完全液相制备法, 低碳醇, 碳纳米管, 碳微球

Abstract: Cu-Zn-Al slurry catalysts were prepared by a complete liquid-phase technology and characterized by X-ray diffraction, N2 adsorption, H2 temperature-programmed reduction, and NH3 temperature-programmed desorption. The effects of carbon nanotubes and carbon microspheres as promoters on catalyst performance for alcohol synthesis were investigated. The results indicated that the Cu-Zn-Al methanol synthesis catalysts showed activity for the synthesis of higher alcohols and hydrocarbons. Cu0 particles with larger grain size were conducive to the growth of carbon chains. Adding carbon microspheres can significantly decrease the size of Cu0 particles and improve the selectivity for methanol.

Key words: copper, zinc, aluminum, complete liquid-phase technology, higher alcohol, carbon nanotube, carbon microsphere