SCI和EI收录∣中国化工学会会刊

›› 2014, Vol. 22 ›› Issue (11/12): 1226-1231.DOI: 10.1016/j.cjche.2014.07.002

• 催化、动力学与反应工程 • 上一篇    下一篇

Effect of Al Content on the Isomerization Performance of Solid Superacid Pd-S2O82-/ZrO2-Al2O3

  

  1. 1 Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China;
    2 Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province, Mudanjiang Medical University, Mudanjiang 157011, China
  • 收稿日期:2014-03-26 修回日期:2014-07-10 出版日期:2014-12-28 发布日期:2014-12-24
  • 通讯作者: Hua Song
  • 基金资助:
    Supported by the Technology Risk Innovation Foundation of ChinaNational Petroleum Corporation (07-06D-01-04-03-02).

Effect of Al Content on the Isomerization Performance of Solid Superacid Pd-S2O82-/ZrO2-Al2O3

Hua Song, Na Wang, Hualin Song, Feng Li, Zaishun Jin   

  1. 1 Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China;
    2 Key Laboratory of Cancer Prevention and Treatment of Heilongjiang Province, Mudanjiang Medical University, Mudanjiang 157011, China
  • Received:2014-03-26 Revised:2014-07-10 Online:2014-12-28 Published:2014-12-24
  • Supported by:
    Supported by the Technology Risk Innovation Foundation of ChinaNational Petroleum Corporation (07-06D-01-04-03-02).

摘要: The effect of Al content on the performance of the Pd-S2O82-/ZrO2-Al2O3 solid superacid catalystwas studied using n-pentane isomerization as a probe reaction. The catalysts were also characterized by X-ray diffraction (XRD), Fourier transform Infrared (FTIR), specific surface area measurements (BET), thermogravimetry-differential thermal analysis (TG-DTA), H2-temperature programmed reduction (TPR) and NH3 temperature-programmed desorption (NH3-TPD). The Pd-S2O82-/ZrO2-Al2O3 catalyst made from Al2O3 mass fraction of 2.5% exhibited the best performance and its catalytic activity increased by 44.0% compared with Pd-S2O82-/ZrO2. The isopentane yield reached 64.3% at a temperature of 238℃, a reaction pressure of 2.0 MPa, a space velocity of 1.0 h-1 and a H2/n-pentane molar ratio of 4.0. No obvious catalyst deactivation was observed within 100 h.

关键词: Solid superacid, Catalyst, Al content, Isomerization

Abstract: The effect of Al content on the performance of the Pd-S2O82-/ZrO2-Al2O3 solid superacid catalystwas studied using n-pentane isomerization as a probe reaction. The catalysts were also characterized by X-ray diffraction (XRD), Fourier transform Infrared (FTIR), specific surface area measurements (BET), thermogravimetry-differential thermal analysis (TG-DTA), H2-temperature programmed reduction (TPR) and NH3 temperature-programmed desorption (NH3-TPD). The Pd-S2O82-/ZrO2-Al2O3 catalyst made from Al2O3 mass fraction of 2.5% exhibited the best performance and its catalytic activity increased by 44.0% compared with Pd-S2O82-/ZrO2. The isopentane yield reached 64.3% at a temperature of 238℃, a reaction pressure of 2.0 MPa, a space velocity of 1.0 h-1 and a H2/n-pentane molar ratio of 4.0. No obvious catalyst deactivation was observed within 100 h.

Key words: Solid superacid, Catalyst, Al content, Isomerization