연구
Research Outcome
미래를 창조하는 포스텍 화학공학과
Improving catalytic performance with sulfur resistance over Co-Cr layered double oxide for low temperature NH3-SCR
- Title of paper
- Improving catalytic performance with sulfur resistance over Co-Cr layered double oxide for low temperature NH3-SCR
- Author
- [김원배 교수 연구실] 층상구조 활용 저온 질소산화물 제거용 환경촉매 개발
- Publication in journal
- Chemical Engineering Journal
- Publication date
- 20230115
[Abstract]
sulfur compounds in the feed stream. The unique structural property, surface acidity, redox ability, increased structure distortion and Cr reduction properties of Co-Cr layered double oxide catalysts were responsible for the improved NOx removal efficiency in the NH3-SCR. In the presence of SO2, the Co-Cr layered double oxide catalyst was sulfated and chromium sulfate species was formed. The sulfate Co-Cr layered structure catalyst showed higher NOx conversions than the fresh catalyst with a high SO2 resistance caused by an improvement of acidity. The enhanced catalytic activity and sulfur tolerance should suggest that the Co-Cr layered double oxide catalyst could be used as an effective catalyst for low temperature NH3-SCR reaction.
DOI: 10.1016/j.cej.2022.139561
Link: https://www.sciencedirect.com/science/article/pii/S1385894722050409?via%3Dihub
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