황화 Co - Mo / γ - Al2O3 촉매에 의한 Dibenzothiophene 의 수첨탈황반응에 관한 연구 ( Hydrodesulfurization of Dibenzothiophene Catalyzed by Sulfided Co - Mo / γ - Al2O3 Catalysts )

다국어 초록 (Multilingual Abstract)

A series of supported sulfided Co-Mo/γ-Al₂O₃ catalysts of different cobalt contents were tested in a fixed bed flow reactor for the hydrodesulfurization of dibenzothiophene(DBT) dissolved in n-heptane. Reaction temperatures were between 533 K ane 537 K, and total reaction pressures were from 20 to 60×10^5 Pa. Most of the products observed were biphenyl and cyclohexylbenzene, and only negligible amount of bicyclohexyl and tetrahydrodibenzothiophene were detected. The catalytic activities with different cobalt contents were shown to be maximum in the range of R=Co/(Co+ Mo)=0.2-0.3 under standard condition. The reaction was first order with respect to DBT concentration, and the average activation energy was 23.4 ㎉/gmole.