SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (1): 74-78.DOI: 10.1016/j.cjche.2016.06.004

• Catalysis, Kinetics and Reaction Engineering • 上一篇    下一篇

Rare earth metals modified Ni-S2O82-/ZrO2-Al2O3 catalysts for n-pentane isomerization

Hua Song1,2, Lele Zhao1, Na Wang1   

  1. 1 College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China;
    2 Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
  • 收稿日期:2016-03-01 修回日期:2016-06-14 出版日期:2017-01-28 发布日期:2017-02-15
  • 通讯作者: Hua Song,E-mail address:songhua2004@sina.com
  • 基金资助:
    Supported by the Technology Risk Innovation Foundation of China National Petroleum Corporation (07-06D-01-04-03-02).

Rare earth metals modified Ni-S2O82-/ZrO2-Al2O3 catalysts for n-pentane isomerization

Hua Song1,2, Lele Zhao1, Na Wang1   

  1. 1 College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China;
    2 Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
  • Received:2016-03-01 Revised:2016-06-14 Online:2017-01-28 Published:2017-02-15
  • Supported by:
    Supported by the Technology Risk Innovation Foundation of China National Petroleum Corporation (07-06D-01-04-03-02).

摘要: The effects of adding rare earth (RE) metals, such as Ce, Yb and Pr to Ni-S2O82-/ZrO2-Al2O3 (Ni-SZA) on the structure of catalysts as well as their isomerization performance were studied. The prepared catalysts were characterized by XRD, BET, FT-IR, Py-IR, and H2-TPR. The results showed that the addition of RE metals can increase the strength and amounts of the acid sites, improve the redox properties of catalysts. The Yb-Ni-SZA catalyst showed the best redox properties, which could provide enough metallic sites. In addition, it provided the largest amounts of weak and moderately strong acid sites. Among RE metals modified Ni-SZA catalyst, Yb-Ni-SZA exhibited the highest isopentane yield of 61.7% at 160℃. The optimum isomerization catalytic performance of the catalysts decreased in the order of Yb-Ni-SZA > Pr-Ni-SZA > Ni-SZA > Ce-Ni-SZA.

关键词: Rare earths, Solid superacid, Catalyst, Hydroisomerization

Abstract: The effects of adding rare earth (RE) metals, such as Ce, Yb and Pr to Ni-S2O82-/ZrO2-Al2O3 (Ni-SZA) on the structure of catalysts as well as their isomerization performance were studied. The prepared catalysts were characterized by XRD, BET, FT-IR, Py-IR, and H2-TPR. The results showed that the addition of RE metals can increase the strength and amounts of the acid sites, improve the redox properties of catalysts. The Yb-Ni-SZA catalyst showed the best redox properties, which could provide enough metallic sites. In addition, it provided the largest amounts of weak and moderately strong acid sites. Among RE metals modified Ni-SZA catalyst, Yb-Ni-SZA exhibited the highest isopentane yield of 61.7% at 160℃. The optimum isomerization catalytic performance of the catalysts decreased in the order of Yb-Ni-SZA > Pr-Ni-SZA > Ni-SZA > Ce-Ni-SZA.

Key words: Rare earths, Solid superacid, Catalyst, Hydroisomerization