Earticle

초록

영어

A new facility, known as Pyrel III, has been installed at ENEA laboratories for pyrochemical process studies under inactive conditions. It is a pilot plant which allows electrorefining and electroreduction experiments to be conducted on simulated fuel. The main component of the plant is a zirconia crucible. The crucible is heated by a furnace which is supported in an externally water-cooled well under the floor of a steel glove-box, where an argon atmosphere is maintained by a continual purge of about 10 L·min-1. The vessel is loaded with LiCl-KCl eutectic salt (59-41 mol%) and is currently operated at 460 °C. Several improvements on Pyrel II (the previous operating plant) have been introduced into Pyrel III. They are described in detail, together with the results from the first experimental campaign which used lanthanum metal. Moreover, studies about the treatment of chloride salt wastes from pyroprocesses have been conducted in parallel. They follow two main routes: on one hand, a matrix termed sodalite, a naturally occurring mineral containing chlorine, has been synthesized from a mix of nepheline, simulated exhausted salts and glass frit; on the other hand, a novel method proposed by Korea Atomic Energy Research Institute (KAERI) is under assessment. The final waste forms have been fully characterized with the support of the Politechnique of Milan, by means of density measurements, thermal analysis, and stereomicroscopy observations, FTIR, XRD, and RAMAN spectra, as well as leach tests under static conditions.

목차

Abstract
 1. Introduction
 2. Pyrel III Electrolyzer for Process Studies
  2.1 Experimental Tests
 3. Conditioning of Chloride Salt Wastes
  3.1 Conditioning with Sodalite
  3.2 Conditioning with SAP Matrix
 4. Conclusions
 REFERENCES

키워드

저자

• Giorgio DE ANGELIS [ Retired from Italian National Agency for New Technology, Energy and Sustainable Economic Development ] Corresponding author
• Elio BAICCHI [ ENEA, Brasimone Research Center ]
• Mauro CAPONE [ ENEA, Casaccia Research Center ]
• Carlo FEDELI [ ENEA, Casaccia Research Center ]
• Massimo SEPIELLI [ ENEA, Casaccia Research Center ]
• Giuliano TIRANTI [ ENEA, Casaccia Research Center ]
• Mirko DA ROS [ Politecnico di Milano, Department of Energy, Nuclear Engineering Division ]
• Francesca GIACOBBO [ Politecnico di Milano, Department of Energy, Nuclear Engineering Division ]
• Marco GIOLA [ Politecnico di Milano, Department of Energy, Nuclear Engineering Division ]
• Elena MACERATA [ Politecnico di Milano, Department of Energy, Nuclear Engineering Division ]
• Mario MARIANI [ Politecnico di Milano, Department of Energy, Nuclear Engineering Division ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  방사성폐기물학회지 [Journal of Nuclear Fuel Cycle and Waste Technology (JNFCWT)]

• 간기

  계간

• pISSN

  1738-1894

• 수록기간

  2003~2017

• 십진분류

  KDC 559 DDC 629