skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Neutron Imaging of Hydrogen Isotope Separation Columns.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the Materials Research Society Spring Meeting held April 6-10, 2015 in San Francisco, CA.
Country of Publication:
United States

Citation Formats

Buffleben, George M. Neutron Imaging of Hydrogen Isotope Separation Columns.. United States: N. p., 2015. Web.
Buffleben, George M. Neutron Imaging of Hydrogen Isotope Separation Columns.. United States.
Buffleben, George M. 2015. "Neutron Imaging of Hydrogen Isotope Separation Columns.". United States. doi:.
title = {Neutron Imaging of Hydrogen Isotope Separation Columns.},
author = {Buffleben, George M.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2015,
month = 4

Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • The Thermal Cycling Absorption Process (TCAP) was further studied with a new configuration. Previous configuration used a palladium packed column and a plug flow reverser (PFR). This new configuration uses an inverse column to replace the PFR. The goal was to further improve performance. Both configurations were experimentally tested. The results showed that the new configuration increased the throughput by a factor of more than 2.
  • Useful information is provided for determining the best startup sequence for multiple interlinked distillation columns for hydrogen isotope separation whose required output specifications are very strict. The column cascade developed for the Tritium Systems Test Assembly is chosen as an example. It is shown that the compositions of the gas mixtures charged into the columns have remarkable effects on the startup characteristics and should be carefully prepared. The compositions are determined by considering the inventories of hydrogen, deuterium, and tritium within the columns under full-normal (normal operating) conditions. Two strategies that are expected to present successful startup are found andmore » discussed. One of the strategies is composed of only two operational modes, but has the complexity of charging four separate mixtures of different compositions into the columns. The other strategy avoids such complexity, but comprises seven modes and requires a roughly two times longer startup time. The control of the atomic fraction of tritium in the H/sub 2/-HD stream conflicts with the purity control for the D/sub 2/ stream. To assure the high purity of the D/sub 2/ stream, the atomic fraction of tritium in the H/sub 2/-HD stream must be decreased to an adequately low value before switching the operation to the full-normal mode.« less
  • The separation performance of tritium by the thermal diffusion method with low inventory was simulated as an alternative method to the cryogenic distillation in Fusion Fuel Cycle. The separation performance of thermal diffusion method was evaluated by the ternary transport equations with isotope exchange reaction. In this paper, the results for HT {minus} H{sub 2} system, show the isotope exchange reaction, H{sub 2} + T{sub 2} = 2HT, plays and important role in the separation performance of tritium, even in a trace level of tritium.
  • Separation experiments were performed with Isotope Separation System (ISS) at the TSTA from 1988 through 1989. These experiments included two column experiments with D-T mixture and four column experiments with D-T mixture and impurities (He and H{sub 2}). The objectives of these experiments were to obtain fundamental data of cryogenic distillation columns under wider range of operational condition than previous work, to observe the influence of He on the operation of cryogenic distillation columns, and to obtain fundamental data of cryogenics distillation columns under the influence of He. 2 refs., 7 figs., 2 tabs.
  • The discovery, at Chalk River, of a simple method of wetproofing platinum catalysts has stimulated an extensive research program for the development of hydrogen isotope separation and hydrogen/oxygen recombination processes. Over 14 years of study has resulted in highly efficient catalysts which retain their activity while immersed in liquid water for periods of more than three years. This paper reviews a wide range of applications and the associated energy implications over conventional catalytic processes. Specific reference is made to the construction of a plant for the removal of tritium from heavy water, and to facilities designed and operated for themore » low temperature (less than 80/sup 0/C) stoichiometric recombination of hydrogen and oxygen mixtures at hydrogen flow rates of 40 scfm (18.9 L/s) through a 2 ft (60 cm) diameter column.« less