| 학회 | 한국화학공학회 |
| 학술대회 | 2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 | 19권 2호, p.1744 |
| 발표분야 | 열역학 |
| 제목 | Calculation on Cs Compounds Behavior of Cs-Te-O Systems with Voloxidation Condition |
| 초록 | Pyroprecessing with voloxidation is known to treat spent nuclear fuels (SNFs) with proliferation resistance. Voloxidation which is carried out at high temperatures and under gas flow conditions removes some fission products contained in SNFs and has been developed as a pretreatment process for pyroprocessing. One of the significant elements in SNFs is cesium, which could be eliminated in voloxidaion process because Cs is taken into consideration as a semi-volatile element on account of its relatively low boiling point, which can bring about difficult control when a severe accident occurs. Te which is one of the elements of SNFs creates various Cs-Te oxides forming Cs2TeO3, Cs2TeO4, Cs2Te2O5 and Cs2TeO9. In this study, two compounds of Ce-Te oxides were selected to calculate the behavior of the compound in Cs-Te-O systems after using Tpp digram which can confirm the stable components depending on partial pressure of Cs and O2 under a given temperature. Cs2TeO3 and Cs2TeO4 were decided as a result of Tpp diagram and we estimated equilibrium amounts of compounds with respect to the sorts of gas flows under temperature including 500 oC, 1000 oC and 1400 oC. |
| 저자 | 박소영, 박병흥 |
| 소속 | 한국교통대 |
| 키워드 | voloxidation; pyroprocessing; Cs-Te-O system; calculation |
| 원문파일 | 초록 보기 |
