Emission Characteristics of NO2 in Diesel Oxidation Catalyst according to the Content of Precious Metal

귀금속 함량에 따른 디젤산화촉매의 이산화질소 배출 특성

  • 김훈명 (자동차부품연구원 배기연비성능연구센터) ;
  • 박용성 (교통안전공단 자동차안전연구원 신교통연구실) ;
  • 이광구 (경일대학교 기계자동차학부)
  • Published : 2012.11.30

Abstract

Two catalyst systems with different content of precious metal coated on DOC are carefully tested in a diesel engine to investigate the emission characteristics of $NO_2$. Three types of experiment methods ($NO_2$ conversion test, ETC mode test, and BPT test) are applied to compare the performance of the two catalyst systems. All the experimental results consistently indicate that it is possible to satisfy $NO_x$ regulation by properly lowering the content of precious metal without the loss of PM removal performance.

Keywords