국내 최대 기계 및 로봇 연구정보

국내학술대회

1093

국내학술대회 제목 게시판 내용
제목(국문)	디젤자동차의 NOx 저감을 위한 HC-SCR 시스템의 정화효율 향상을 위한 시스템 구성에 관한 연구
제목(영문)	Development of HC-SCR System Configuration for Improvement of NOx Reduction Rate on Heavy Duty Diesel Engine
저자	이천환 (Chunhwan Lee ,자동차부품연구원 ) ▷공저자네트워크등록하기 오광철 (Kwangchul Oh ,자동차부품연구원 ) ▷공저자 네트워크 보기 김덕진 (Deokjin Kim ,자동차부품연구원 ) ▷공저자 네트워크 보기 이춘범 (Chunbeom Lee ,자동차부품연구원 ) ▷공저자네트워크등록하기 이해수 (Haesoo Lee ,(주)이앤드디 ) ▷공저자네트워크등록하기 김태민 (Taemin Kim ,(주)이앤드디 ) ▷공저자네트워크등록하기
초록	HC-SCR system was developing constantly in spite of low NOx reduction rate because of infrastructure is not necessity and simple system configure. Two kind of catalysts are known for the reduction of NOx with hydrocarbons, one is ZSM-5 catalyst which is active at high temperature region and Pt/Al2O3 catalyst has higher efficiency at low temperature. Both catalysts have their narrow operating temperature windows respectively and that is resulting in a limited NOx reduction efficiency of HC-SCR. In this paper, low temperature catalysts(LT) which is PGM base catalysts and high temperature catalysts (HT) which is zeolite base catalysts are used simultaneously to improve the performance of HC-SCR. At the first, each LT and HT catalysts were tested respectively with results of LT system has 25% NOx reduction rate at 230℃ and HT has 30% at 450℃. Finally, the combination of LT and HT catalysts were evaluated. Form the results, system of HT+LT was more efficient than LT+HT system.
keyword	diesel engine(디젤엔진), emission regulation(배기규제), HC-SCR(탄환수소 SCR), NOx(질소산화물), DOC(Diesel Oxidation Catalysts, 디젤산화촉매)
저널명	한국자동차공학회 추계학술대회 ▷관련저널보기
VOL	08
PAGE	241
발표년도	2008
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