Pyrolysis kinetics of spent low-level radioactive resin

Y. J. Huang, H. Paul Wang, S. H. Liu, M. C. Hsiao

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

Spent low-level radioactive (LLRA) cation ion exchange resins (consisting of base copolymers of styrene and divinyl benzene and sulfonic acid) are difficult to treat effectively by conventional cement-solidification methods. Pyrolysis of the spent LLRA resin has been recognized to be very effective in reducing the volume and mass of the waste. Experimentally, we found by the thermogravimetric analysis (TGA) method that the activation energy for the pyrolysis of an LLRA resin was 319.2 kJ/mol. The reaction order and pre-exponential factor were 0.61 and 1.1 × 1020 s-1, respectively. Note that during the pyrolysis, ∼50% of the SO42- species in the resin was decomposed to SO2 at 673 to 873 K. At high temperatures (>873 K), most of the aromatics of the resin were also thermally cracked.

原文English
頁(從 - 到)206-210
頁數5
期刊Nuclear Technology
138
發行號2
DOIs
出版狀態Published - 2002 5月

All Science Journal Classification (ASJC) codes

  • 核能與高能物理
  • 核能與工程
  • 凝聚態物理學

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