| 학회 |
한국화학공학회 |
| 학술대회 |
2011년 가을 (10/26 ~ 10/28, 송도컨벤시아) |
| 권호 |
17권 2호, p.2017 |
| 발표분야 |
촉매 |
| 제목 |
Mn-Fe/ZSM5 as a low temperature SCR catalyst for removing NOx from diesel engine: a study on the stability of the Mn-Fe/ZSM5 |
| 초록 |
Mn-based catalysts have been regarded as an alternative SCR catalyst, due to their outstanding low temperature activity and less toxicity.However, the stability of those catalysts has been rarely investigated yet.In the present study, eco-friendly Mn-Fe/ZSM5 has been developed as a low temperature SCR catalyst.The deNOx activity as well as stabilities of the catalyst including thermal stability and SO2 tolerance were systematically examined and directly compared to those of the representative SCR catalysts.The Mn-Fe/ZSM5 catalyst showed superiordeNOx activity to the CuZSM5 and CuCHAcatalysts.AlthoughNO conversionover the Mn-Fe/ZSM5 catalyst apparently decreased after aging, the thermal stability of the catalyst has been significantly enhanced upon the addition of rare earth metal which may moderate the alteration of MnOx dispersion on the catalyst surface during sintering.In addition, the Mn-Fe/ZSM5 based catalyst, particularlyrare earth metal promoted one, revealed stronger sulfur tolerance than the other catalysts examined. |
| 저자 |
김영진1, 권혁재2, 이형주1, 남인식1, 정진우3, 차문순4, 여권구4
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| 소속 |
1포항공과대, 2삼성종합기술원 Enviornment group, 3현대-기아 자동차 Power Train R&D Center, 4오덱 기술(연) |
| 키워드 |
Urea/SCR; manganese; zeolite; deactivation
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| E-Mail |
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| 원문파일 |
초록 보기 |
