About The Journal
  Aims and Scope
  Editorial Board
  Submit a Manuscript 
  Subscription Information
  Guidelines for Publication
  Ethics
Articles & Issues
  Search
  Issue
  Online First
  KJChE on
For Authors
  Instructions to Authors
  Ethical Responsibilities of
  Authors in KJChE
  Ethics in Publishing
  Peer Review Process
  Author's Checklist
  Copyright Transfer Form
Contact us
 
 
 
Issue
Korean Journal of Chemical Engineering,
Vol.7, No.1, 69-73, 1990
A TRANSIENT KINETIC STUDY OF ETHYLENE EPOXIDATION OVER Ag/SiO2
PARK DW
Transient kinetics of ethylene epoxidation over a Ag/SiO2 catalyst has been studied at relatively low temperatures(110-130℃) using an automated square pulse cyclic reactor. It is observed at this low temperatures that the formation of CO2 and H2O was retarded compared to epoxide formation. The 100% selectivity toward ethylene oxide was obtained after hydrogen treatment of the catalyst surface. It indicates that maximum selectivity of 6/7 based on classical molecular oxygen hypothesis should be carefully reviewed. The participation of both atomic and molecular oxygen to epoxide formation was postulated, but the former probably after recombination with subsurface oxygen.
[References]
  1. Kilty PA, Sachtler WMH, Catal. Rev.-Sci. Eng., 10, 1, 1974
  2. Hucknell DJ, "Selective Oxidation of Hydrocarbons," Chap. 2, Academic Press, New York, 1974
  3. Verykios XE, Stern FP, Coughlin RW, Catal. Rev.-Sci. Eng., 22, 197, 1980
  4. Sachtler WMH, Backx C, van Santen RA, Catal. Rev.-Sci. Eng., 23, 127, 1981
  5. Kilty PA, Rol NC, Sachtler WMH, Proc. 5th Int. Cong. on Catal., p. 929, 1973
  6. Cant NK, Hall WK, J. Catal., 52, 81, 1978
  7. Stoukides N, Vayenas CG, J. Catal., 69, 18, 1981
  8. Campbell CT, Koel BE, J. Catal., 92, 272, 1985
  9. Force EL, Bell AT, J. Catal., 38, 440, 1975
  10. Backx C, Moolhuysen J, Geenen P, van Santen RA, J. Catal., 72, 364, 1981
  11. Grant RB, Lambert RM, J. Catal., 92, 364, 1985
  12. Tan SA, Grant RB, Lambert RM, J. Catal., 100, 383, 1986
  13. Voge HH, Adams CR, Adv. Catal., 17, 151, 1967
  14. Biloen P, J. Mol. Catal., 21, 17, 1983
  15. Park DW, Gau G, Chem. Eng. Sci., 41(1), 143, 1986
  16. Park DW, Gau G, J. Catal., 105, 81, 1987
  17. Park DW, Ghazali S, Gau G, Appl. Catal., 6, 175, 1983
  18. Bulushev DA, Khasin AV, React. Kinet. Catal. Lett., 36(2), 455, 1988
  19. Force EL, Bell AT, J. Catal., 40, 356, 1975
  20. van Santen RA, Moolhuysen J, Sachtler WMH, J. Catal., 65, 478, 1980
  21. Campbell CT, J. Catal., 99, 28, 1986
  22. van Santen RA, DeGroot CPM, J. Catal., 98, 530, 1986
  23. Sandler YL, Beer SZ, Durigon DD, J. Phys. Chem., 70, 3881, 1966
  24. Ghazali S, Park DW, Gau G, Appl. Catal., 6, 195, 1983
  25. Mikami J, Satoh S, Kobayashi H, J. Catal., 18, 265, 1970
[Cited By]
  1. Park DW, HWAHAK KONGHAK, 28(4), 373, 1990
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.