화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 가을 (10/27 ~ 10/28, 고려대학교)
권호 12권 2호, p.2299
발표분야 유동층
제목 Development of NO oxidation and reduction catalysts for the Fast SCR Process
초록 A number of candidate catalysts have been prepared by using different preparation methods (impregnation and precipitation methods) for the fast SCR process and these catalysts have been tested to determine their reaction activities in a fixed bed differential reactor. Among all the developed NO oxidation catalysts, supported/unsupported, Co3O4 based catalyst seems to be the most active but unfortunately these catalysts are not suitable for NO oxidation in the presence of SO2 stream. Similarly, for the DeNOx process, several different catalysts have also been developed and among all these catalysts Co-W mixed oxide catalyst proved to be excellent as it converts all NOx (100%) at very low temperatures (150 - 350 ℃) and at a high space velocity (200000 h-1). It also overcomes the problems exhibited by the commercial catalyst having specific a temperature window (300 - 400 ℃) and needs a relatively high volume and also it requires complex manufacturing method as it has a number of promoters. Furthermore, the effects of calcination temperature, SO2 concentration and optimum SV for 50% conversion of NO to NO2 and N2O formation over Co3O4 based catalysts on NO oxidation and NOx reduction were also determined.
저자 Irfan Muhammad Faisal, 구정회, 김상돈
소속 한국과학기술원
키워드 NO oxidation; NOx reduction; fast SCR
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