| 제목 |
바나듐 기반의 Urea-SCR과 DOC가 결합된 Heavy-Duty 디젤 배출가스 후처리 시스템의 SCR De-NOx 성능 향상에 관한 수치해석 연구 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
윤병규(전북대학교), 김홍석(한국기계연구원), 정용일(한국기계연구원), 김만영(전북대학교), 조규백(한국기계연구원), 김종민(전북대학교) |
| Key Words |
SCR(Selective Catalytic Reduction, 선택적 촉매저감), DOC(Diesel Oxidation Catalyst, 디젤산화촉매), NOx(Nitrogen Oxides, 질소 산화물), SCR De-NOx(NOx Reduction of SCR, SCR의 NOx 저감), Vanadium(바나듐) |
| 초록 |
In this study, numerical experiments were carried out to estimate the SCR De-NOx performance in DOC plus SCR systems. The SCR De-NOx phenomena are described by Langmuir-Hinshelwood reaction scheme. After validating the present approach by comparing the present results with the experimental results, such various parameters as space velocity, H2O concentration, NO2/NOx ratio and relative volume of DOC are explored to increase the SCR De-NOx performance. The results indicate that SCR De-NOx performance largely depends on space velocity and NO2/NOx ratio, especially below 200°C. SCR De-NOx performance is seriously affected by relative volume of DOC with SCR due to increasing in NO2/NOx ratio at below 250°C. |
| 원문(PDF) |
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