Abstract
An experimental study was carried out for evaluating the performance of hydrogen isotope separation using an LaNi3Al2 hydride bed. The isotope effect in the uptake of hydrogen isotopes and the rate constants of hydriding and isotopic exchange between hydrogen and deuterium are given as indications of its effectiveness. These values were determined on the basis of the comparison of experimental data with numerical solutions to the material balance equation for hydrogen or deuterium in a bed. The uptake of deuterium is larger than that of hydrogen below 200 °C. The activation energy of the rate constant of isotopic exchange is 31.8 kJ mol-1, while that of the hydriding rate constant increases with increasing hydrogen concentration in the influent stream. The height equivalent to a theoretical plate in the LaNi3Al2 bed above 200 °C is comparable with that in a Pd bed.
| Original language | English |
|---|---|
| Pages (from-to) | 49-55 |
| Number of pages | 7 |
| Journal | Journal of Alloys and Compounds |
| Volume | 201 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Nov 12 1993 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Hydrogen isotope separation using particle beds of LaNi3Al2 hydride. / Fukada, S.; Fuchinoue, K.; Nishikawa, M.
In: Journal of Alloys and Compounds, Vol. 201, No. 1-2, 12.11.1993, p. 49-55.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hydrogen isotope separation using particle beds of LaNi3Al2 hydride
AU - Fukada, S.
AU - Fuchinoue, K.
AU - Nishikawa, M.
PY - 1993/11/12
Y1 - 1993/11/12
N2 - An experimental study was carried out for evaluating the performance of hydrogen isotope separation using an LaNi3Al2 hydride bed. The isotope effect in the uptake of hydrogen isotopes and the rate constants of hydriding and isotopic exchange between hydrogen and deuterium are given as indications of its effectiveness. These values were determined on the basis of the comparison of experimental data with numerical solutions to the material balance equation for hydrogen or deuterium in a bed. The uptake of deuterium is larger than that of hydrogen below 200 °C. The activation energy of the rate constant of isotopic exchange is 31.8 kJ mol-1, while that of the hydriding rate constant increases with increasing hydrogen concentration in the influent stream. The height equivalent to a theoretical plate in the LaNi3Al2 bed above 200 °C is comparable with that in a Pd bed.
AB - An experimental study was carried out for evaluating the performance of hydrogen isotope separation using an LaNi3Al2 hydride bed. The isotope effect in the uptake of hydrogen isotopes and the rate constants of hydriding and isotopic exchange between hydrogen and deuterium are given as indications of its effectiveness. These values were determined on the basis of the comparison of experimental data with numerical solutions to the material balance equation for hydrogen or deuterium in a bed. The uptake of deuterium is larger than that of hydrogen below 200 °C. The activation energy of the rate constant of isotopic exchange is 31.8 kJ mol-1, while that of the hydriding rate constant increases with increasing hydrogen concentration in the influent stream. The height equivalent to a theoretical plate in the LaNi3Al2 bed above 200 °C is comparable with that in a Pd bed.
UR - http://www.scopus.com/inward/record.url?scp=0027702450&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027702450&partnerID=8YFLogxK
U2 - 10.1016/0925-8388(93)90860-P
DO - 10.1016/0925-8388(93)90860-P
M3 - Article
AN - SCOPUS:0027702450
VL - 201
SP - 49
EP - 55
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -