| 학회 | 한국화학공학회 |
| 학술대회 | 2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 | 28권 1호, p.257 |
| 발표분야 | [주제 3] 미세먼지 |
| 제목 | SCR catalysts with dual function to simultaneously remove NOx and hydrocarbons contained in exhaust gas |
| 초록 | SCR technology to remove NOx emitted from stationary & mobile sources has been developed in parallel with increasingly stringent environmental regulations. The use of ammonia as a reducing agent is the most widely used, but the high cost of equipment because of the need for a separate ammonia supply device is one of the disadvantages, and the unreacted ammonia slip also becomes another environmental problem. In this study, we intend to develop an SCR catalyst with a dual function that can simultaneously remove NOx by using hydrocarbons contained in exhaust as a reducing agent. The Pt catalyst supported on alumina showed a NOx removal more than 50% in the 220-260 oC temperature range, and the maximum NOx conversion was 75%. Toluene used as a reducing agent was also oxidized more than 90% at 220 oC, and exhibited excellent activity such as 100% removal at 240 oC or higher. In addition, the bimetallic catalyst with added transition metals or rare earth metals shifted the NOx removal temperature to a lower region, and at the same time made a wider active temperature window. |
| 저자 | 박순희1, 신경수2, 이관영1, 조성준2 |
| 소속 | 1고려대, 2전남대 |
| 키워드 | 촉매(Catalyst) |
| 원문파일 | 초록 보기 |
