| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 봄 (05/02 ~ 05/04, 대구 엑스코(EXCO)) |
| 권호 |
22권 1호 |
| 발표분야 |
촉매_포스터 |
| 제목 |
Effect of Hydrothermal Aging Temperature on NOX Reduction Performance for Sb-V-CeO2/TiO2 catalyst |
| 초록 |
Herein, we discussed NOX reduction performance of Sb-V-CeO2/TiO2 (SbVCT) catalysts subjected to hydrothermal aging, where 6 vol. % of H2O was fed to the SbVCT for 16 hours with variable temperatures of 550-750 °C. The fresh and aged SbVCT catalysts were characterized using XRD, TEM, Raman, N2 physisorption, NH3-TPD, H2-TPR, and in situ NH3-DRIFT. The SbVCT catalysts aged at ≤ 600 °C showed better NOX conversions than the others aged at ＞ 600 °C. This was because aging at ≤ 600 °C could help minimize the loss of surface redox/acid characters that were originally inherent to surface vanadyl and CeO2 species for the SbVCT prior to aging process. In contrast, aging of the SbVCT at ≥ 650 °C led to the transformation of surface vanadyl and CeO2 species into CeVO4 and large CeO2 aggregates. This in turn led to the loss of surface redox/acid characters indigenous to the SbVCT and reduced its NOX reduction performance. |
| 저자 |
Pullur Anil Kumar1, 정영은1, 권동욱1, 이소민2, 김동호1, 김종식1, 하헌필1
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| 소속 |
1한국과학기술(연), 2고려대 |
| 키워드 |
NH3-SCR; SbVCT; hydrothermal aging
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| E-Mail |
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