Hydrogen Isotope Separation by Displacement Chromatography with Palladium

Satoshi Fukada, Katsuhiro Fuchinou, Masabumi Nishikawa

Research output: Contribution to journalArticle

Abstract

In order to establish a lab-scale hydrogen isotope separation system, experimental and numerical studies were performed by means of displacement chromatography of protium and deuterium using a bed of spongy palladium particles. The inlet deuterium concentration of 5.0% D or 54.9% D was prepared for the experiment. The equations of the material balance of deuterium in the bed and the isotopic exchange rate between protium and deuterium were simultaneously solved. The contributions of isotopic exchange reaction on Pd surfaces, diffusion in the solid and axial dispersion in the interstitial of the Pd bed to overall mass transfer were taken into consideration in the equations. The numerical calculation results fitted to the experimental data. They predicted well the maximum deuterium concentration in the effluent and the shape of the displacement band. In the calculations. we used the values of the concentration-dependent isotope separation factor and the isotopic exchange rate constant determined in our previous exchange experiment. We formulated an equation to evaluate the Pd bed height necessary for the complete separation of any mixtures of hydrogen isotopes including H, D and T.

Original languageEnglish
Pages (from-to)556-564
Number of pages9
Journaljournal of nuclear science and technology
Volume32
Issue number6
DOIs
Publication statusPublished - Jan 1 1995

Fingerprint

isotope separation
hydrogen isotopes
chromatography
Deuterium
Chromatography
Palladium
Isotopes
palladium
deuterium
beds
Hydrogen
light water
material balance
Surface diffusion
effluents
surface diffusion
mass transfer
Effluents
Rate constants
Ion exchange

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

Cite this

Hydrogen Isotope Separation by Displacement Chromatography with Palladium. / Fukada, Satoshi; Fuchinou, Katsuhiro; Nishikawa, Masabumi.

In: journal of nuclear science and technology, Vol. 32, No. 6, 01.01.1995, p. 556-564.

Research output: Contribution to journalArticle

Fukada, Satoshi ; Fuchinou, Katsuhiro ; Nishikawa, Masabumi. / Hydrogen Isotope Separation by Displacement Chromatography with Palladium. In: journal of nuclear science and technology. 1995 ; Vol. 32, No. 6. pp. 556-564.
@article{db2a82d644a5477ba179dc5882f692e5,
title = "Hydrogen Isotope Separation by Displacement Chromatography with Palladium",
abstract = "In order to establish a lab-scale hydrogen isotope separation system, experimental and numerical studies were performed by means of displacement chromatography of protium and deuterium using a bed of spongy palladium particles. The inlet deuterium concentration of 5.0{\%} D or 54.9{\%} D was prepared for the experiment. The equations of the material balance of deuterium in the bed and the isotopic exchange rate between protium and deuterium were simultaneously solved. The contributions of isotopic exchange reaction on Pd surfaces, diffusion in the solid and axial dispersion in the interstitial of the Pd bed to overall mass transfer were taken into consideration in the equations. The numerical calculation results fitted to the experimental data. They predicted well the maximum deuterium concentration in the effluent and the shape of the displacement band. In the calculations. we used the values of the concentration-dependent isotope separation factor and the isotopic exchange rate constant determined in our previous exchange experiment. We formulated an equation to evaluate the Pd bed height necessary for the complete separation of any mixtures of hydrogen isotopes including H, D and T.",
author = "Satoshi Fukada and Katsuhiro Fuchinou and Masabumi Nishikawa",
year = "1995",
month = "1",
day = "1",
doi = "10.3327/jnst.32.556",
language = "English",
volume = "32",
pages = "556--564",
journal = "Journal of Nuclear Science and Technology",
issn = "0022-3131",
publisher = "Atomic Energy Society of Japan",
number = "6",

}

TY - JOUR

T1 - Hydrogen Isotope Separation by Displacement Chromatography with Palladium

AU - Fukada, Satoshi

AU - Fuchinou, Katsuhiro

AU - Nishikawa, Masabumi

PY - 1995/1/1

Y1 - 1995/1/1

N2 - In order to establish a lab-scale hydrogen isotope separation system, experimental and numerical studies were performed by means of displacement chromatography of protium and deuterium using a bed of spongy palladium particles. The inlet deuterium concentration of 5.0% D or 54.9% D was prepared for the experiment. The equations of the material balance of deuterium in the bed and the isotopic exchange rate between protium and deuterium were simultaneously solved. The contributions of isotopic exchange reaction on Pd surfaces, diffusion in the solid and axial dispersion in the interstitial of the Pd bed to overall mass transfer were taken into consideration in the equations. The numerical calculation results fitted to the experimental data. They predicted well the maximum deuterium concentration in the effluent and the shape of the displacement band. In the calculations. we used the values of the concentration-dependent isotope separation factor and the isotopic exchange rate constant determined in our previous exchange experiment. We formulated an equation to evaluate the Pd bed height necessary for the complete separation of any mixtures of hydrogen isotopes including H, D and T.

AB - In order to establish a lab-scale hydrogen isotope separation system, experimental and numerical studies were performed by means of displacement chromatography of protium and deuterium using a bed of spongy palladium particles. The inlet deuterium concentration of 5.0% D or 54.9% D was prepared for the experiment. The equations of the material balance of deuterium in the bed and the isotopic exchange rate between protium and deuterium were simultaneously solved. The contributions of isotopic exchange reaction on Pd surfaces, diffusion in the solid and axial dispersion in the interstitial of the Pd bed to overall mass transfer were taken into consideration in the equations. The numerical calculation results fitted to the experimental data. They predicted well the maximum deuterium concentration in the effluent and the shape of the displacement band. In the calculations. we used the values of the concentration-dependent isotope separation factor and the isotopic exchange rate constant determined in our previous exchange experiment. We formulated an equation to evaluate the Pd bed height necessary for the complete separation of any mixtures of hydrogen isotopes including H, D and T.

UR - http://www.scopus.com/inward/record.url?scp=85007820909&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85007820909&partnerID=8YFLogxK

U2 - 10.3327/jnst.32.556

DO - 10.3327/jnst.32.556

M3 - Article

AN - SCOPUS:85007820909

VL - 32

SP - 556

EP - 564

JO - Journal of Nuclear Science and Technology

JF - Journal of Nuclear Science and Technology

SN - 0022-3131

IS - 6

ER -