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A study on Property of Emission Gas by the Content Variation of Urea
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  • Journal title : Journal of Energy Engineering
  • Volume 24, Issue 4,  2015, pp.24-32
  • Publisher : The Korea Society for Energy Engineering
  • DOI : 10.5855/ENERGY.2015.24.4.024
 Title & Authors
A study on Property of Emission Gas by the Content Variation of Urea
Kang, Hyungkyu; Doe, Jinwoo; Hwang, Inha; Im, Jaeheuk; Ha, Jonghan; Na, Byungki;
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National and international regulations on the exhaust gases of diesel engines are being strengthened, and a study of the combutsion engine and the post-porcessing system are in progress as a variety of ways. There are many techniques for the removal of nitrogen oxide like HC-SCR, LNT, Urea-SCR. And the technical development on the Urea-SCR owing to high conversion efficiency and fuel economy characteristics has being processed. This study investigated the physical/chemical properties of urea according to the change of the urea content, and were analysed the characteristic of exhaust gas. According to the increase of urea content, the contests of biuret aldehyde, phosphate content was increased and the changes of emission quantity of carbon monoxide, hydrocarbons and particulate matter in the exhaust gas was very slight. The emission quantity of NOx was decreased in accordance with increasing the urea content and it was shown to be more than 80 % in the urea solution having more than 30 wt%.
Urea;Urea solution;NOx;SCR;
 Cited by
T. Johnson, "Diesel Emission Control In Review," SAE 2006-01-0030, 2006

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Seo, J., Lee, S., Cho, Y., Kang, Y., "A study on Effect of NOx and NH3 Emission Characteristics by Urea-SCR Model for Euro-6 Emission Regulation in Diesel Engine", The Korean Society Of Automotive Enineers, pp. 479-485, 2012

Han, J., Hong, K., Hwang, I., Myung, C., Park, S., Lee, N., "NO/NO2 mixture ratio and Catalyst Temperature using Simulated Diesel Exhaust Gases on DeNOx Performance in Urea-SCR System", The Korean Society of Mechanical Engineers, pp. 67-72, 2008

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