화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO)
권호 18권 2호, p.2126
발표분야 열역학
제목 Analysis of the Oxidation and Vaporization Behavior of Fission Products by Thermodynamic Calculations
초록 Fission products created by irradiation of nuclear fuel remained in spent nuclear fuel. Spent nuclear fuel could be reused when fission products are properly removed from the resource materials and the removal of the fission products could be accomplished by using dry processes.  
A voloxidation process is a suitable step to remove volatile fission products from spent nuclear fuels. In order to assess operation conditions of an advanced voloxidation process, analysis of oxidation and vaporization behavior of metals with low melting point among fission products  was required with respect to thermal treatment atmosphere conditions.  
In this work, the vapor pressures of fission products were calculated and volatile behaviors were analyzed with respect to oxidizing gas conditions. Some oxides and metals such as In2O3, SnO, Rh and Pd wouldn’t be vaporized even at 1400℃ under an oxygen atmosphere. In order to vaporize 99% of RuO2 the temperature should be increased up to 1300℃ under an air atmosphere.
저자 박병흥, 박소영
소속 한국교통대
키워드 voloxidation; thermodynamic calculation
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