高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (1): 98.

• 论文 • 上一篇    下一篇

超细Mo/Al2O3催化剂(Ⅰ)──催化及还原性质研究

冯丽娟1, 陈诵英1, 彭少逸1, 魏昭彬2, 辛勤2   

  1. 1. 中国科学院山西煤炭化学研究所, 煤转化国家重点实验室, 太原 030001;
    2. 中国科学院大连化学物理研究所, 催化基础研究国家重点实验室, 大连
  • 收稿日期:1994-02-03 修回日期:1994-07-25 出版日期:1995-01-24 发布日期:1995-01-24
  • 通讯作者: 冯丽娟,女,32岁,博士,助研.
  • 作者简介:冯丽娟,女,32岁,博士,助研.
  • 基金资助:

    国家自然科学基金

Ultrafine Mo/Al2O3Catalysts for Hydrodesulfurization(Ⅰ)──Catalytic Performances and Reduction Behavior of UFP-Mo/Al2O3Catalysts

FENC Li-Juan1, CHEN Song-Ying1, PENG Shao-Yi1, WEI Zhao-Bin2, XIN Qin2   

  1. 1. State Key Lab. of Coal Conv., Institute of Coal Chem., Chinese Academy of Sci., Taiyuan, 030001;
    2. State Key Lab. for Catal., Dalian Institute of Chem. Phys., Chinese Academy of Sci., Dalian
  • Received:1994-02-03 Revised:1994-07-25 Online:1995-01-24 Published:1995-01-24

PDF (PC)

摘要： 研究两种不同制备方法──浸渍法和超临界流体干燥法制得的超细Mo/Al2O3催化剂的加氢与加氢脱硫催化性质及还原性质,并与以普通Al2O3作载体制得的Mo/Al2O3催化剂相比较。结果表明,超细粒子催化剂催化性质较大程度地受制备方法的影响。TPR、XRD、LRS分析结果表明,超细氧化铝载体和超临界流体干燥法的使用均有利于Mo在Al2O3表面的分散。

关键词: 超细Mo/Al2O3, TPR, 还原性质, 加氢脱硫

Abstract: The activities of hydrodesulfurization(HDS)and hydrogenation(HYD)for UFPAl2O3catalysts prepared by two methods,impregnation and supercritical fluid drying process,were determined in a continuous flow microreactor. It is shown that the catalytic properties and the dispersion of Mo species on alumina surface are greatly affected by the preparation method,as compared to that of ordinary Mo/Al2O3(prepared by impregnating ordinary γ-Al2O3with molybdenum salt),the HDS activities of UFP-Mo/Al2O3(prepared by implregnating UFPalumina with Mo salt)are considerably high under the same condition. So do the HYD activities. It is also indicated from TPR,LRS and XRD that the Mo loading at which bulk MoO3phase emerge for UFP-Mo/Al2O3is considerably higher than that for ordinary Mo/Al2O3catalysts,implying that using UFP-Al2O3and supercritical fluid drying process favor the dispersion of Mo species onto the surface of alumina.

Key words: UFP-Mo/Al2O3, TPR, Reduction behavior, Hydrodesulfurization, Hydrogenation

TrendMD: