환원분위기하 석탄회 세슘 반응생성물의 열적 안정성

다국어 초록 (Multilingual Abstract)

This study has been investigated to analyze the thermal stability of cesium reacted with fly ash with changing mole ratio of Cs/Al in hydrogen atmosphere. When the CsNO₃ and fly ash were reacted at 1000℃ in hydrogen atmosphere, cesium nepheline(CsAlSiO₄) phase began to emerge in addition to pollucite(CsAlSi₂O_6) phase when the cesium loading quantity was greater than 0.32(g-Cs₂O/g-fly ash). Cesium nepheline(CsAlSiO₄) phase increased with increasing cesium loading quantity. When cesium trapped on a fly ash was exposed to 1200℃ in hydrogen atmosphere, no weight loss due to the volatilization was shown until the cesium loading quantity was reached at 0.32(g-Cs₂O/g-fly ash). In the case of the cesium loading quantity of 0.48~0.74(g-Cs₂O/g-fly ash) in hydrogen atmosphere, the weight loss increased with increasing the cesium loading quantity. This is considered to be due to the cesium nepheline(CsAlSiO₄) whose vapor pressure is higher than that of pollucite(CsAlSiO_6).

목차 (Table of Contents)

• Abstract
  
• Ⅰ. 서론
  
• Ⅱ. 실험재료 및 방법
  
• Ⅲ. 결과 및 고찰
  
• Ⅳ. 결론
  
• 감사의 글
  
• 참고문헌