Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Hydrodesulfurization of Dibenzothiophene by Sulfided $Ni-W/\gamma-Al_2O_3$ Catalyst

황화 $Ni-W/\gamma-Al_2O_3$ 촉매에 의한 Dibeenzothiophene의 수첨탈황반응

  • 김경림 (연세대학교 화학공학과) ;
  • 정지원 (연세대학교 화학공학과)
  • Published : 1986.09.01
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Abstract

Hydrodesulfurization of dibenzothiophene (DBT) dissolved in n-heptane was studied over sulfided $Ni - W/\gamma - Al_2O_3$ catalyst at temperature ranges from 513 to 573 K and at pressure ranges from 20 to 60 x $10^5$ Pa. Hydrogenation of biphenyl (BP) and cyclohexylbenzene (CHB) observed in products were also run. The products were almost biphenyl and cyclohyxylbenzene, and the conversion of DBT was very sensitive to temperature. Concerning the products distribution while the formation of biphenyl decreased, the formation of cyclohexylbenzene increased in the range of high pressure. The reaction network was found to be sequential reaction which formed cyclohexybenzent through the intermediate of biphenyl. The disappearances of DBT and biphenyl were the first order with respect to DBT and biphenyl and their activation energys were 24.3 and 13.6 Kcal/mol, respectively.

Keywords

References

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