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Performance Prediction of SCR-DeNOx System for Reduction of Diesel Engine NOx Emission  

김만영 (현대자동차 승용디젤엔지시험팀)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.11, no.3, 2003 , pp. 71-76 More about this Journal
Abstract
A numerical simulation of selective catalytic reduction (SCR) for NO with $NH_3$ is conducted over the $V_2O_5/TiO_2$ and $WO_3-V_2O_5/TiO_2$ catalysts. The governing $NH_3$ and NO transport equations are considered by using the time-dependent FCT (Flux-Corrected Transport) algorithm. After a validating simulation for $NH_3$ step feed and shut-off experiments is analyzed, transient behavior of $NH_3$ and NO concentration in a SCR catalyst is investigated by changing such parameters as inflow $NH_3$ concentration, temperature of the catalyst, and $NH_3$/NOx ratios.
Keywords
SCR(Selective Catalytic Reduction); Urea; $NH_3$; Diesel NOx; Simulation; FCT(Flux-Corrected Transport);
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