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  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Desulfurization of benzothiophene and thiophene with oxidation using WOx/ZrO2 catalysts: Effect of calcination temperature of catalysts

2012년 2월 16일 15시 46분 20초
IND.P-106 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
4월 25일 (수요일) 18:00~21:00
저자 및
HASAN ZUBAIR, imteaz ahmed1, 전재우2, 정성화2
경북대학교 대학원 화학과, Korea
1경북대 화학과, Korea
2경북대학교 화학과, Korea
Oxidative desulfurization (ODS) of model fuel containing benzothiophene (BT) or thiophene (Th) has been carried out with WOx/ZrO2 catalyst, which was calcined at various temperatures. Based on the conversion of BT in the model fuel, it can be shown that the optimum calcination temperature of WOx/ZrO2 catalyst is around 700 oC. The most active catalyst is composed of tetragonal zirconia (ZrO2) with well dispersed polyoxotungstate species and it is necessary to minimize the contents of the crystalline WO3 and monoclinic ZrO2 for a high BT conversion. The oxidation rate was interpreted with the first-order kinetics, and it demonstrated the importance of electron density since the kinetic constant for BT was higher than that for Th even though the BT is larger than Th in size. A WOx/ZrO2 catalyst, treated suitably, can be used as a reusable active catalyst in the oxidative desulfurization. Acknowledgement This work was supported by a grant (B551179-10-03-00) from the cooperative R&D Program funded by the Korea Research Council Industrial Science and Technology, Republic of Korea. References [1] Z. Hasan, J. Jeon, S. H. Jhung, J. Hazard. Mater., 205-206 (2012) 216.