能源化学(英文) ›› 2013, Vol. 22 ›› Issue (6): 883-894.

• ARTICLES • 上一篇    下一篇

Required catalytic properties for alkane production from carboxylic acids:Hydrodeoxygenation of acetic acid

Zhong He, Xianqin Wang   

  1. Department of Chemical, Biological and Pharmaceutical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA
  • 收稿日期:2013-02-22 修回日期:2013-08-20 出版日期:2013-11-20 发布日期:2013-11-28
  • 通讯作者: Xianqin Wang
  • 基金资助:

    This work was supported by Dr. Wang’s NJIT startup package. The XRD work was performed at X7B beamline in the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory (BNL).

Required catalytic properties for alkane production from carboxylic acids:Hydrodeoxygenation of acetic acid

Zhong He, Xianqin Wang   

  1. Department of Chemical, Biological and Pharmaceutical Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, USA
  • Received:2013-02-22 Revised:2013-08-20 Online:2013-11-20 Published:2013-11-28
  • Supported by:

    This work was supported by Dr. Wang’s NJIT startup package. The XRD work was performed at X7B beamline in the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory (BNL).

摘要: The supported Pt catalysts (1 wt%) were prepared by the incipient impregnation method and analyzed using synchrotron-based X-ray diffraction, BET surface area, oxygen adsorption, CO pulse chemisorption, temperature-programmed desorption (TPD) of acetic acid, H2-TPD, NH3-TPD, O2-TPD, and H2-TPR. The reactivity of Pt-based catalysts was studied using a fixed bed reactor at 300 ℃ and 4 MPa for hydrodeoxygenation of acetic acid, where Pt/TiO2 was very selective for ethane production. TPD experiments revealed that several conditions must be satisfied to achieve this high selectivity to ethane from acetic acid, such as Pt sites, moderate acidity, and medium metal-oxygen bond strength in the oxide support. This work provides insights in developing novel catalytic materials for hydrocarbon productions from various organics including bio-fuels.

关键词: hydrodeoxygenation, ethane, acetic acid, bio-oil, Pt/TiO2, acidity, metal-oxygen interaction

Abstract: The supported Pt catalysts (1 wt%) were prepared by the incipient impregnation method and analyzed using synchrotron-based X-ray diffraction, BET surface area, oxygen adsorption, CO pulse chemisorption, temperature-programmed desorption (TPD) of acetic acid, H2-TPD, NH3-TPD, O2-TPD, and H2-TPR. The reactivity of Pt-based catalysts was studied using a fixed bed reactor at 300 ℃ and 4 MPa for hydrodeoxygenation of acetic acid, where Pt/TiO2 was very selective for ethane production. TPD experiments revealed that several conditions must be satisfied to achieve this high selectivity to ethane from acetic acid, such as Pt sites, moderate acidity, and medium metal-oxygen bond strength in the oxide support. This work provides insights in developing novel catalytic materials for hydrocarbon productions from various organics including bio-fuels.

Key words: hydrodeoxygenation, ethane, acetic acid, bio-oil, Pt/TiO2, acidity, metal-oxygen interaction