Selective hydroisomerization of n-dodecane over platinum supported on zeolites

  • Soyoung Yun
  • Eunok Lee
  • Young-Kwon Park
  • Soon-Yong Jeong
  • Jeongsik Han
  • Byunghun Jeong
  • Jong-Ki Jeon


In this study, in order to develop catalysts for the selective isomerization of higher paraffin, the hydroisomerization reaction of n-dodecane was performed as a model reaction. Pt/ZSM-48, Pt/HZSM-5, Pt/HY, and Pt/SAPO-11 were examined for the selective hydroisomerization of n-dodecane. The catalysts were characterized via X-ray powder diffraction, N2 adsorption, and the temperature-programmed desorption of ammonia. Among the catalysts studied, the Pt/HZSM-48 catalyst exhibited the best isomerization selectivity in the hydroisomerization reaction of n-dodecane, which is attributed to the moderate acid sites and medium-sized pores present in the HZSM-48. The highest iso-dodecane yield was obtained at a reaction temperature of 280 °C in the Pt/HZSM-48 catalyst. The optimal selectivity of the n-dodecane hydroisomerization over the Pt/SAPO-11 catalyst was obtained at approximately 300 °C, which was slightly higher than that of the Pt/HZSM-48 catalyst.


Hydroisomerization Dodecane Pt HZSM-48 SAPO-11 


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Soyoung Yun
    • 1
  • Eunok Lee
    • 1
  • Young-Kwon Park
    • 2
  • Soon-Yong Jeong
    • 3
  • Jeongsik Han
    • 4
  • Byunghun Jeong
    • 4
  • Jong-Ki Jeon
    • 1
  1. 1.Department of Chemical EngineeringKongju National UniversityCheonanKorea
  2. 2.School of Environmental EngineeringUniversity of SeoulSeoulKorea
  3. 3.Green Chemistry Research DivisionKorea Research Institute of Chemical TechnologyDaejeonKorea
  4. 4.Agency for Defense DevelopmentDaejeonKorea

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