금속을 이온교환시킨 ZSM-5 촉매 상에서 Nitric Oxide의 환원반응

• 영문명: Selective Catalytic Reduction of Nitric Oxide over Metal Exchanged ZSM-5 Catalysts
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 안성환(Sung Hwan Ahn) 김태옥(Tae Ok Kim) 함현식(Hyun Sik Hahm)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제17권 제1호, 1~5쪽, 전체 5쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2000.03.30

영문 초록

The selective catalytic reduction(SCR) of nitric oxide by ethane in the presence of oxygen was investigated on Cu-ZSM-5, Co-ZSM-5 and Ga-ZSM-5 catalysts over a range of 400, 450 and 500℃. The catalysts were prepared by ion-exchange method. The composition of the reactant gases were 1000 ppm of NO, 1000 ppm of C₂H₆ and 2.5% of O₂, and the reaction was conducted in a fixed-bed reactor at 1 atm. For the 20wt% Co-ZSM-5(50) catalyst, the NO conversion reached up to 100%, while the C₂H₆ conversion and the CO selectivity were about 50% and 25%, respectively, at 450℃. For the 20wt% Cu-ZSM-5(50) catalyst, the NO conversion and the C₂H₆ conversion were about 80% and 100%, respectively, but there was no CO produced. The metal ion-exchanged ZSM-5 catalysts exhibited a tendency to increase the NO conversion with the Si/Al ratio of the ZSM-5, that is, NO conversion was inversely proportional to the acidity of the catalysts. But, the effect of the acidity on NO conversion was not so large. From the XRD results of the catalysts before and after SCR reaction it was found that there was no structural change.

목차

Abstract

1. 서론

2. 실험

3. 결과 및 고찰

4. 결론

참고문헌