Alkylation of Isobutane with 1-Butene over Heteropoly Acid Catalysts

헤테로폴리산 촉매상에서 1-부텐에 의한 i-부탄의 알킬화반응

  • Hong, Sung Hee (Department of Chemical Engineering, Seoul National University) ;
  • Lee, Wha Young (Department of Chemical Engineering, Seoul National University) ;
  • Song, In Kyu (Department of Industrial Chemistry, Kangnung National University)
  • 홍성희 (서울대학교 공과대학 화학공학과) ;
  • 이화영 (서울대학교 공과대학 화학공학과) ;
  • 송인규 (강릉대학교 공업화학과)
  • Received : 1996.10.19
  • Accepted : 1997.02.21
  • Published : 1997.04.10


Liquid or gas phase alkylation of isobutane with 1-butene for i-octane production was carried out over Cs- or $NH_4$-exchanged $H_3PW_{12}O_{40}$. Pretreatment temperature of the catalyst played an important role on the catalytic activity of heteropoly acids in the liquid phase alkylation. Cation-exchanged $H_3PW_{12}O_{40}$ showed a better total yield and i-octane selectivity than the mother acid in the liquid phase alkylation, and $(NH_4)_{2.5}H_{0.5}PW_{12}O_{40}$ was more efficient than $Cs_{2.5}H_{0.5}PW_{12}O_{40}$ in terms of i-octane selectivity. It was found that the acidic property (deactivation of acid sites) of the catalyst was closely related to the catalytic activity of Cs- or $NH_4$-exchanged $H_3PW_{12}O_{40}$ in the gas phase alkylation. $C_5-C_7$ were mainly formed in the early stage of gas phase alkylation due to the strong acidic property of the catalyst, whereas $C_8$ and $+C_9$ were mainly produced as the reaction proceeded due to the deactivation of acid sites. $Cs_{2.5}H_{0.5}PW_{12}O_{40}$ showed the highest total yield in the gas phase alkylation among the catalysts examined.



  1. J. Am. Chem. Soc. v.57 V. N. Ipatieff;A. V. Grosse
  2. Catal. Rev. Sci. Eng. v.35 A. Corma;A. Martinez
  3. Zeolites v.5 J. Weitkamp;A. W. Chester
  4. App. Catal. v.61 Y. Yamaguchi
  5. J. Mol. Catal. v.42 B. Chieche;A. Finiels;C. Gauthier;P. Geneste
  6. Chem. Lett. T. Okuhara;M. Yamashita;K. Na;M. Misono
  7. Zeolites v.6 Y. F. Chu;A. W. Chester
  8. Ind. Eng. Chem. Res. v.45 L. Schmerling
  9. J. Am. Chem. Soc. v.54 F. C. Whitmore
  10. J. Am. Chem. Soc. v.68 L. Schmerling
  11. 공업화학 v.5 송인규;이종국;송재천;이화영
  12. 촉매 v.11 이종국;송인규;이화영
  13. Chem. Lett. H. C. Kim;S. H. Moon;W. Y. Lee
  14. Proc. 10th Int. Cong. Catal.;New Frontiers in Catalysis M. Misono
  15. Stud. Surf. Sci. Catal. v.101 T. Okuhara;T. Nishimura;M. Misono
  16. Chem. Lett. T. Okuhara;T. Nishmura;M. Misono
  17. Chem. Lett. Y. Izumi;M. Ogawa;W. Nohara;K. Urabe
  18. J. Chem. Soc. Faraday Trans. v.91 K. Na;T. Okuhara;M. Misono
  19. J. Mol. Catal. v.74 T. Okuhara;T. Nishimura
  20. Chem. Lett. S. Tatamatsu;S. Hibi;T. Okuhara;M. Misono
  21. Chem. Materials v.8 I. K. Song;M. S. Kaba;G. Coulston;D. Kourtakis;M. A. Barteau
  22. Inorg. Chem. v.22 C. Rocchicchioli-Deltcheff;M. Fournier;R. Franck;R. Thouvenot
  23. Bull. Chem. Soc. Jpn. v.62 Y. Izumi;N. Natsume;H. Takamine;I. Tamaoki;K. Urabe
  24. Stud. Surf. Sci. Catal. v.101 N. Essayem;S. Kieger;G. Coudurier;J. C. Vedrine