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http://dx.doi.org/10.3795/KSME-B.2017.41.4.269

Experimental Study on Characteristics of NOX Reduction with Urea-Selective Catalytic Reduction System in Diesel Passenger Vehicle  

Park, Seungwon (Dept. of Automotive Engineering, Kookmin Univ.)
Lee, Seangwock (Dept. of Automotive Engineering, Kookmin Univ.)
Cho, Yongseok (Dept. of Automotive Engineering, Kookmin Univ.)
Kang, Yeonsik (Dept. of Automotive Engineering, Kookmin Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.41, no.4, 2017 , pp. 269-275 More about this Journal
Abstract
$NO_X$ reducing technique such as LNT, LNC, and selective catalytic reduction (SCR) have been developed and applied, especially on heavy-duty vehicles. However, it is expected that $NO_X$ reduction techniques will also be applied to diesel passenger vehicles. The urea-SCR system is receiving attention as the most effective $NO_X$ reduction technology without a fuel penalty. Thus, many advanced countries are developing this technology. The urea-SCR system sprays an aqueous urea solution that separates $NO_X$ into $N_2$ and $H_2O$, which are harmless and emitted into the atmosphere. The urea injected in front of the SCR catalyst should be changed to 100％ $NH_3$, which is required for $NO_X$ reduction in the SCR system to maximize the reduction efficiency. The purpose of this study was to determine the basic data for the urea-SCR system to maximize the $NO_X$ reduction efficiency by understanding the $NO_X$ reduction characteristics in a real passenger vehicle to comply with the post EURO-6 emission regulation.
Keywords
Passenger Diesel Vehicle; Urea-SCR; $NO_X$; Exhaust Emission; EURO-VI;
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Times Cited By KSCI : 1  (Citation Analysis)
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