| 학회 |
한국공업화학회 |
| 학술대회 |
2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
26권 1호 |
| 발표분야 |
포스터-촉매 |
| 제목 |
Improvement of Nb-Mo doping on low-temperature catalytic activity of VOx-based catalyst for NH3-SCR reaction |
| 초록 |
A series of VxNbMoTi for the selective catalytic reduction (SCR) of NO by NH3 was synthesized to overcome the disadvantages of a low V contents of V-based catalyst. The low amount of V are decrease catalytic activity under 300 °C. Nb is expected to be an alternative to accelerators for low-temperature SCR reaction. Mo enhanced the catalyst acidity and SO2 durability by synthesizing with V/Ti. Nb and Mo were selected as promoters to improved activity and SO2 durability under 300°C. According to the addition of Nb and/or Mo, physicochemical analysis is carried out to demonstrate characterization of the catalysts. It has been shown that the addition of Nb-Mo to VTi increases the total amount of NH3 adsorption, enhances the Brönsted acid site. The catalytic activity improved as the ratio of Vn+ (n=4 or 3) increased. The introduction of Nb-Mo improved SCR performance and resistance to SO2/H2O. In this study, we explored catalytic performance/resistance by using the surface/bulk analyses. |
| 저자 |
박연재1, 김동호1, 이정현2, Ha Heon Phil1, 권동욱1
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| 소속 |
1한국과학기술(연), 2고려대 |
| 키워드 |
NOx removal; NH3-SCR; SO2 resistance; Molybdenum; Niobium
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| E-Mail |
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