Isaac Scientific Publishing

Modern Organic Chemistry Research

The Effect of SiO2/Al2O3 Ratio on Hydroisomerization Reaction Performance of Pd/SAPO-31 Catalysts

Download PDF (1001.5 KB) PP. 1 - 9 Pub. Date: August 8, 2020

DOI: 10.22606/mocr.2020.51001

Author(s)

  • Yungang Jia*
    Daqing Petrochemical Research Center, Petrochemical Research institute, CNPC, Daqing 163714, China
  • Tiezhen Zhang
    Daqing Petrochemical Research Center, Petrochemical Research institute, CNPC, Daqing 163714, China
  • Famin Sun
    Daqing Petrochemical Research Center, Petrochemical Research institute, CNPC, Daqing 163714, China
  • Wei Wu
    Heilongjiang University, Harbin 150080, China

Abstract

SAPO-31 molecular sieves with various (SiO2)/(Al2O3) ratio were synthesized using di-n-butylamine (DBA) as the template. The samples were well characterized by XRD, N2 sorption-desorption, SEM, NH3-TPD and Py-IR. The results showed that the sample had good crystallinity (SiO2/Al2O3 ratio of 0.6). Isomerization of deoxidized vegetable oil is carried in a fixed-bed reactor with 100ml catalyst at 2.0MPa, 350°C, WHSV 1.5, hydrogen-oil ratio 500:1. The highest biodiesel yield of 92.2wt% was obtained over the Pd/SAPO-31(0.6) catalyst with solidifying point 0°C, flash point 60°C and cetane number 74. Catalyst had no loss of activity and shows high stability and excellent hydroisomerization performance.

Keywords

SAPO-31, biodiesel, hydroisomerization dewaxing, SiO2/Al2O3 ratio, Pd

References

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