Kawamura, Yoshinori; Edao, Yuki; Yamanishi, Toshihiko
To develop an adsorbent that is suitable for a separation column of gas chromatograph for hydrogen isotope analysis, the mordenite-type zeolite of which cations (Na
) were exchanged with other cations have been prepared and their hydrogen isotope adsorption behavior is being investigated. Then, it has been shown experimentally that mordenite-type zeolite of which cation has been exchanged with Ca
(Ca-MOR) has fairly large adsorption capacity. So, breakthrough curves of H
(or D) adsorption on Ca-MOR at 194 K and 175 K have been observed and mass transfer coefficients have been estimated from them. The rate-controlling step of hydrogen adsorption is hydrogen diffusion in porous adsorbent. And, isotopic difference of effective diffusivity in Ca-MOR is larger than that in Na-MOR. Therefore, in comparison with Na-MOR, use of Ca-MOR is expected to enhance the hydrogen isotope separation capability.
Language |
: | English |
|---|---|---|
Journal |
: | |
Volume |
: | 88 |
Number |
: | 9-10 |
Pages |
: | p.2255 - 2258 |
Publication Year/Month |
: | 2013/10 |
Meeting title |
: | |
Held date |
: | 2012/09 |
Location (city) |
: | Li |
Location (country) |
: | Belgium |
Paper URL |
: |
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Keywords |
: | no keyword |
Research Facility |
: |
Accesses |
: |
- Accesses |
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InCites™ |
: |
Percentile:53.52 Category:Nuclear Science & Technology |
Altmetrics |
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