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

Title: Tritium purification via zirconium--manganese--iron alloy getter St 909 in flow processes

Abstract

A zirconium--manganese--iron alloy, St 909, was evaluated as a purifier in tritium handling, transport, and storage applications. High efficiency removal of CH[sub 4], CO, CO[sub 2], NH[sub 3], and O[sub 2] was observed at concentrations of 0.1% to 1% in helium. Gas streams at 100--5000 sccm were passed through getters operated at 600--800 [degree]C. On-getter residence times of two seconds were required to achieve [gt]99% removal of these reactive impurities. At this removal efficiency level, the individual impurity capacity of 100 g of St 909 purifier at 800 [degree]C was 0.59, 0.28, 0.19, 0.14, and 0.12 moles of CH[sub 4], CO, CO[sub 2], O[sub 2], and NH[sub 3], respectively. Hydrogen containing gasses, CH[sub 4] and NH[sub 3] were cracked on the purifier and the resultant elemental hydrogen was released. Only 8[plus minus]2 sccm of H[sub 2] were retained on 100 g of St 909 at 800 [degree]C. These features suggest that this alloy can be employed as an efficient purifier for hydrogen isotopes in inert gas, nitrogen, or perhaps even H, D, or T streams.

Authors:
; ; ;  [1];  [2]
  1. (Idaho National Engineering Laboratory, EG G Idaho, Inc., Idaho Falls, Idaho 83415-7111 (United States))
  2. (Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States))
Publication Date:
OSTI Identifier:
5242504
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Journal Article
Journal Name:
Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)
Additional Journal Information:
Journal Volume: 12:2; Journal ID: ISSN 0734-2101
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; TRITIUM; PURIFICATION; GAS FLOW; GETTERS; MANGANESE ALLOYS; STEELS; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; ZIRCONIUM ALLOYS; ALLOYS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; FLUID FLOW; HYDROGEN ISOTOPES; IRON ALLOYS; IRON BASE ALLOYS; ISOTOPES; LIGHT NUCLEI; NUCLEI; ODD-EVEN NUCLEI; RADIOISOTOPES; TEMPERATURE RANGE; YEARS LIVING RADIOISOTOPES; 080201* - Hydrogen- Chemisorption Storage; 400202 - Isotope Effects, Isotope Exchange, & Isotope Separation

Citation Formats

Baker, J.D., Meikrantz, D.H., Pawelko, R.J., Anderl, R.A., and Tuggle, D.G.. Tritium purification via zirconium--manganese--iron alloy getter St 909 in flow processes. United States: N. p., 1994. Web. doi:10.1116/1.579167.
Baker, J.D., Meikrantz, D.H., Pawelko, R.J., Anderl, R.A., & Tuggle, D.G.. Tritium purification via zirconium--manganese--iron alloy getter St 909 in flow processes. United States. doi:10.1116/1.579167.
Baker, J.D., Meikrantz, D.H., Pawelko, R.J., Anderl, R.A., and Tuggle, D.G.. Tue . "Tritium purification via zirconium--manganese--iron alloy getter St 909 in flow processes". United States. doi:10.1116/1.579167.
@article{osti_5242504,
title = {Tritium purification via zirconium--manganese--iron alloy getter St 909 in flow processes},
author = {Baker, J.D. and Meikrantz, D.H. and Pawelko, R.J. and Anderl, R.A. and Tuggle, D.G.},
abstractNote = {A zirconium--manganese--iron alloy, St 909, was evaluated as a purifier in tritium handling, transport, and storage applications. High efficiency removal of CH[sub 4], CO, CO[sub 2], NH[sub 3], and O[sub 2] was observed at concentrations of 0.1% to 1% in helium. Gas streams at 100--5000 sccm were passed through getters operated at 600--800 [degree]C. On-getter residence times of two seconds were required to achieve [gt]99% removal of these reactive impurities. At this removal efficiency level, the individual impurity capacity of 100 g of St 909 purifier at 800 [degree]C was 0.59, 0.28, 0.19, 0.14, and 0.12 moles of CH[sub 4], CO, CO[sub 2], O[sub 2], and NH[sub 3], respectively. Hydrogen containing gasses, CH[sub 4] and NH[sub 3] were cracked on the purifier and the resultant elemental hydrogen was released. Only 8[plus minus]2 sccm of H[sub 2] were retained on 100 g of St 909 at 800 [degree]C. These features suggest that this alloy can be employed as an efficient purifier for hydrogen isotopes in inert gas, nitrogen, or perhaps even H, D, or T streams.},
doi = {10.1116/1.579167},
journal = {Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)},
issn = {0734-2101},
number = ,
volume = 12:2,
place = {United States},
year = {1994},
month = {3}
}