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디젤 배기 후처리에 대한 NH3-SCR의 DeNOx 특성 해석

Title
디젤 배기 후처리에 대한 NH3-SCR의 DeNOx 특성 해석
Other Titles
Numerical Analysis on the DeNOx Characteristics of NH₃-SCR for Diesel Exhaust Aftertreatment
Author
김우승
Keywords
NH₃-SCR(암모니아 선택적 환원 촉매); deNOx efficiency(질소산화물 저감효율); NH₃ oxidation(NH₃ 산화반응); Standard SCR reaction(standard SCR 반응); oxygen(산소)
Issue Date
2009-09
Publisher
한국자동차공학회
Citation
2009년 학술대회 및 전시회, Page. 775-781
Abstract
In this study, the numerical investigation on the DeNOx characteristics of NH₃-SCR catalyst is performed. The various chemical reactions such as the standard-, NH₃ oxidation and NH₃ adsorption/desorption have been considered. The mathematical and chemical reaction kinetics models are also investigated to predict the performance of the selective catalytic reduction of NOx with ammonia over a vanadium-based SCR catalyst. In order to account for transport effects, the kinetics is coupled with a fully transient two-phase 1D+1D monolith channel model. The chemical reaction kinetics models are adopted to describe the unsteady- and steady-state kinetic behavior of the vanadium-based SCR catalyst. The reaction rate expressions are based on previously published literature and are modified to provide the best fits to experimental data. The mathematical and reaction kinetics models used in this study have been validated extensively with the experimental data over a wide range of reaction temperatures and operating conditions.
URI
http://www.dbpia.co.kr/Journal/ArticleDetail/NODE01505298http://repository.hanyang.ac.kr/handle/20.500.11754/104091
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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