2013 Fiscal Year Final Research Report
Development of adsorbent with macro-pore silica beads for lithium isotope separation and separative analyses
| Project/Area Number |
24760697
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear fusion studies
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| Research Institution | Nagoya University |
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Principal Investigator |
SUGIYAMA Takahiko 名古屋大学, 工学(系)研究科(研究院), 准教授 (90353440)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | リチウム / 同位体分離 / 置換クロマトグラフィー |
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| Research Abstract |
The purpose of the present study is to enhance a separative performance of displacement chromatography for enrichment of lithium isotope as a blanket material of a fusion reactor. A simulation code was developed based on a model where the mass transfer processes was consisted of convection and dispersion, transfer through liquid films, intraparticle diffusion and adsorption or desorption. The effects of adsorbent diameter on separative performances were estimated using the simulation code. An adsorbent was prepared by impregnating a macroporous silica beads with xylene solution of benzo-15-crown-5. Height equivalent to a theoretical plate (HETP) was estimated by Fujine's equation with data of breakthrough experiments for the adsorbent-packed column. The HETP value decreased with the adsorbent diameter. It becomes clear that the separative performance can be increased by adopting a small diameter of the adsorbent.
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