디젤엔진의 NOx 저감을 위한 SCR DeNOx 촉매의 수치 해석Simulation of SCR DeNOx Catalyst for Reduction of Diesel Engine NOx Emission
- Other Titles
- Simulation of SCR DeNOx Catalyst for Reduction of Diesel Engine NOx Emission
- Authors
- 김영득; 이상진; 심성민; 김우승; 이천환
- Issue Date
- Nov-2007
- Publisher
- 한국자동차공학회
- Keywords
- SCR(Selective Catalytic Reduction, 선택적 촉매환원); NH3(암모니아); NOx(질소산화물); Mathematical Modeling(수학적 모델링)
- Citation
- 한국자동차공학회 춘 추계 학술대회 논문집
- Indexed
- OTHER
- Journal Title
- 한국자동차공학회 춘 추계 학술대회 논문집
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/43163
- Abstract
- The reaction kinetics which can describe the NH3 slip from a selective catalytic reduction (SCR) reactor as well as the maximum conversion of NOx over a wide range of reaction temperatures has been investigated over a commercial V2O5/TiO2 catalyst. The chemical phenomena are described by global reactions for the oxidation of ammonia and the reduction of NOx using Langmuir-Hinshelwood reaction rate expressions. In order to account for the influence of transport effects, the reaction kinetics is coupled with a fully transient one-dimensional monolith channel model. The steady-state chemical reaction scheme used in the present mathematical model has been validated extensively with experimental data, selective NOx reduction efficiency for a wide range of inlet conditions such as space velocity, oxygen concentrations, water concentration, and NO2/NO ratio. We also performed parametric investigations to examine how the NH3 slip from a SCR DeNOx catalyst and the conversion of NOx were affected by the reaction temperature, NH3/NOx feed ratio, and space velocity for feed gas compositions with NO2/NOx ratios of 0 and 0.5.
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Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF MECHANICAL ENGINEERING > 1. Journal Articles
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