Water Detritiation: Better SCK·CEN Catalysts for Liquid Phase Catalytic Exchange
| Autor: | Johan Braet, Aime Bruggeman, Sven Vanderbiesen |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Nuclear and High Energy Physics
Materials science 020209 energy Mixing (process engineering) chemistry.chemical_element 02 engineering and technology 01 natural sciences 010305 fluids & plasmas law.invention Catalysis chemistry.chemical_compound law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering General Materials Science Civil and Structural Engineering Heavy water Electrolysis Electrolysis of water Mechanical Engineering Human decontamination Fusion power Nuclear Energy and Engineering chemistry Chemical engineering Platinum |
| Zdroj: | Fusion Science and Technology. 48:102-107 |
| ISSN: | 1943-7641 1536-1055 |
| DOI: | 10.13182/fst05-a889 |
| Popis: | A technically and economically sound technology for water detritiation is mandatory for the future of fusion. This technology is expected to be based on water electrolysis and Liquid Phase Catalytic Exchange (LPCE). LPCE requires an efficient hydrophobic catalyst. SCK-CEN invented and developed such a catalyst in the past, which is prepared by depositing platinum on an activated charcoal carrier and mixing it with polytetrafluorethylene as a hydrophobic material. In combination with an appropriate wettable packing, different batches of this catalyst performed very well during years of extensive testing, allowing us to develop the ELEX process for water detritiation at inland reprocessing plants. Recently we succeeded in reproducing this catalyst and preparing a slightly different but clearly ameliorated type. By extrapolation these new results would allow us to obtain, at 40 deg. C and under typical but conservative operating conditions, a decontamination factor of 10000 with a column of less than 3 meters long. Such performances would make this catalyst an excellent candidate for application at JET or ITER. To confirm the performances of our improved catalyst for a longer period of time and in a longer column, we are now starting experiments in a newly built installation and we aremore » collaborating with ICSI, Romania.« less |
| Databáze: | OpenAIRE |
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