Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
권호 표지

The Hydrodesulfurization over NiPtMo Catalysts and Acidic Characterization of Supports

NiPtMo계 촉매 담체의 산특성 및 수소첨가 탈황반응

  • 김문찬 (동양폴리에스터 기술연구소) ;
  • 이원묵 (대전대학교 화학공학과) ;
  • 김경림 (연세대학교 화학공학과)
  • Published : 1994.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

The hydrodesulfurization (DBT) were Peformed over NiPtMo catalysts supported on HZSM-5, LaY and ${\gamma}$- $Al_2$O$_3$under high H$_2$ pressure. And the acidities of these catalysts were characterized by using TGA and DSC. The result showed that the order of the acid strength for prepared supports was HZSM -5＞LaY＞${\gamma}$- A1$_2$O$_3$. For the acid amount we obtained the same result for the acid strength The acid strength and the acid amount mainly depended on the kinds of supports whose acid site were strong or not The activity of the hydrodesulfurization decreased for catalysts which had strong acid sites. The origin of acid site was Bronsted in NH50 and NY catalysts And it was Lewis in NA catalyst The order of desorption activation energy for Pyridine was NH50＞NY>NA. And the result was the same for thiophene. The activity of the hydrodesulfurization decreased for catalysts which had strong acid sites. The conversion of DBT over NA catalyst was higher than NH and NY catalysts.

Keywords

References

  1. Revue de Iinstitut Fran ais de Petrole Juillet-Aout. v.33 Frank,J.P.
  2. I&EC Pro.Res.Dev. v.42 Choudhary,N.;Saraf,P.N.
  3. I&EC Pro.Res.Dev. v.42 Harold,B.;Larson,O.A.
  4. ACS/CIS Conference Scott,J.W.;Bridge,A.G.
  5. Ph. D. Dissertation Spare,A.V.
  6. Elservier The Mechanism and Hetergeneous Catalysis Fahrentort(etal.)
  7. Elservier Metal-Supported and Metal-Additive Effects in Catalysis Imelik,,B.(ET AL.).
  8. AICHE,J. v.19 no.3 Schuit, G. C. A.;Gates, B. C.
  9. J. Catal. v.57 Nay,N.K.;Spare,A.V.;Broderick,D.H.;Gates,B.C.
  10. Rec. Trav.:Chem. Phic. v.69 Hoog,H.
  11. Chem. Eng. Sci. v.32 Moorooka,S.;Harmin,C.E.
  12. J. Catal. v.15 Lipsch, J. M. J. G.;Schult, G. C. A.
  13. Ph. D. Dissertations Cowley,S.W.
  14. J.Chem. v.47 Kolbe,S.;Canm
  15. J.Chem. Eng. v.2 Kuboda,H.;Yamanaka,Y.
  16. J.Catal. v.7 Anderson, J. R.;Avery, N. R.
  17. Ind. Eng. Chem.Process Res. Dev. v.4 Beuther,H.;Larson,O.A.
  18. Bull. Chem. Soc. Japan v.51 Masuda,T.;Taniguchi,H.;Tautsumi,K.;Takahashi,H.
  19. Elservier Delaware Catalyst Deactivation(1st ed) Delmon,B.;Froment,G.H.