• 제목/요약/키워드: DUPIC

검색결과 131건 처리시간 0.031초

환원분위기하 석탄회 세슘 반응생성물의 열적 안정성 (Thermal Stability of Cesium Reacted with Fly Ash in Hydrogen Atmosphere)

  • 신진명;김광렬;박장진;신설우
    • 환경위생공학
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    • 제19권4호
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    • pp.1-8
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    • 2004

  • 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 $CsNO_3$ and fly ash were reacted at $1000^{\circ}C$ in hydrogen atmosphere, cesium $nepheline(CsAlSiO_4)$ Phase began to emerge in addition to $pollucite(CsAlSi_2O_6)$ phase when the cesium loading quantity was greater than $0.32(g-Cs_2O/g-fly\; ash)$. Cesium $nepheline(CsAlSiO_4)$ Phase increased with increasing cesium loading quantity. When cesium trapped on a fly ash was exposed to $1200^{\circ}C$ in hydrogen atmosphere, no weight loss due to the volatilization was shown until the cesium loading quantity was reached at $0.32(g-Cs_2O/g-fly\; ash)$. In the case of the cesium loading quantity of $0.48-0.74(g-Cs_2O/g-fly\;ash)$ in hydrogen atmosphere, the weight loss increased with increasing the cesium loading quantity. This is considered to be due to the cesium $nepheline(CsAlSiO_4)$ whose vapor pressure is higher than that of $pollucite(CsAlSi_2O_6)$.

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Sintering Characteristics of Simulated DUPIC Fuel

  • Kang, Kweon-Ho;Ryu, Ho-Jin;Park, Chang-Je;Moon, Heung-Soo;Song, Kee-Chan;Yang, Myoung-Seung
    • 한국분말야금학회:학술대회논문집
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    • 한국분말야금학회 2003년도 international symposium on advanced powder metallurgy
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    • pp.133-134
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    • 2003

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