| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 |
21권 1호, p.1019 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Effect of calcination temperature on synthesis of mesoporous thngsten oxide and their catalytic performances in DBT oxidative desulfurization |
| 초록 |
A series of mesoporous tungsten oxides were synthesized by using nano-replication method via mesoporous silica KIT-6 as a hard template with different annealing temperatures. The synthesized mesoporous tungsten oxides were well-characterized by X-ray diffraction (XRD), N2–adsorption, Scanning electron microscope (SEM), H2-TPR and Raman spectroscopy. The catalytic activities of mesoporous WOx which were calcinated at different temperatures for the oxidative desulfurization of dibenzothiophene (DBT) with H2O2 as the oxidant in model oil were also investigated under atmospheric pressure at 50oC. The results showed that the catalytic activity was increased in the order: WOx(400oC)≥WOx(500oC) ≥ WOx(600oC)＞ WOx(300oC) ＞ WOx(200oC), and the catalytic activity decreases in the order of DBT ＞ BT for the various sulfur-containing compounds (benzothiophene (BT), dibenzothiophene (DBT)). And the activity of mesoporous WO3 was maintained during 5 times recycle-test without any regeneration process. The high catalytic activity and durability is mainly attributed to well-defined mesopores and high surface area of mesoporous WO3 catalyst. |
| 저자 |
이정화, LI CHENGBIN, 홍경희, 김지만
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| 소속 |
성균관대 |
| 키워드 |
desulfurization; mesoporous WO3
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| E-Mail |
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| 원문파일 |
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