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DME 엔진용 LNT 촉매에서 NO<SUB>x</SUB> 흡장과 환원에 관한 실험적 연구
가재금(Jaegeum Ka),김재형,윤여빈(Yubin Yoon),송춘섭(Chunsub Song),박영준(Youngjoon Park),이성욱(Seangwock Lee),조용석(Yongseok Cho) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
The DME fuel is an alternative fuel as low PM emission. But the DME engines emit the same level of NOx emission as diesel engines. The LNT(Lean NOx Trap) catalyst is an aftertreatment system typically used to reduce the oxides of nitrogen(NOx) emissions for diesel engine. During the lean condition of exhaust gas, the NOx is stored in the LNT catalyst, then released and reduced during the rich condition of exhaust gas. This paper aimed to figure out evaluate to effect of exhaust gas temperature, space velocity, O₂ concentration in exhaust gas and mass of reductant injection for adsorption and reduction of LNT catalyst for DME engines by using the test rig.