Characteristics of Titanium Sponge for the Storage of Hydrogen Isotopes: II. Hydriding Properties

Seungwoo Paek; Do-Hee Ahn; Kwang-Rak Kim; Sung-Paal Yim; Hongsuk Chung

Journal of Industrial and Engineering Chemistry, Vol.10, No.4, 539-543, July, 2004

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Characteristics of Titanium Sponge for the Storage of Hydrogen Isotopes: II. Hydriding Properties

Seungwoo Paek^†, Do-Hee Ahn, Kwang-Rak Kim, Sung-Paal Yim, and Hongsuk Chung

Korea Atomic Energy Research Institute, Daejeon 305-353, Korea

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The characteristics of the hydriding reaction over titanium sponge have been investigated using conventional hydriding techniques to produce a database for tritium immobilization for the Wolsong TRF (Tritium Removal Facility). This paper details information regarding the practical use of titanium sponge for the storage of hydrogen isotopes. Various commercial titanium sponges were subjected to evaluations of their hydriding properties. The influence of the particle size of the titanium sponge on the hydriding rate was also examined. There was no significant isotopic effect in the reaction of hydrogen and deuterium over titanium sponge. The helium contained in the reacting hydrogen gas seems to prevent its hydriding reaction. The pressure profiles of dehydriding were obtained by heating at 550 ℃. We found that the hydriding rates decreased upon increasing the initial hydrogen content on the titanium sponge.

Keywords:hydrogen isotopes;titanium sponge;hydriding tritium;storage

[References]

Evans EA, Tritium and Its Compounds, p. 215, John Wiley and Sons, Toronto (1974)
Yaraskavitch JM, Holtslander WJ, Proc. Int. Symp. on the Metal-Hydrogen Systems, Miami Beach, FL., T.N. Veziroglu, Ed., p. 619, Pergamon, Oxford (1982)
Heung LK, WSRC-MS-94-0491 (1994)
Holtslander WJ, Yaraskavitch JM, AECL-7151 (1981)
Holtslander WJ, Miller JM, AECL-7757 (1982)
Noga JO, OH-81-368-K (1981)
Dushman S, Vacuum Technique, p. 600, John Wiley & Sons, Inc., New York (1949)
Paek S, Ahn DH, Kim KR, Lee M, Chung H, J. Ind. Eng. Chem., 10(3), 468 (2004)
Paek S, Ahn DH, Kim KR, Chung H, J. Ind. Eng. Chem., 8(1), 12 (2002)
Kherani NP, Shmayda WT, Fusion Technol., 8, 2399 (1985)
Miller JM, Holtslander WJ, Johnson RE, Taylor WR, INIS-mf-12730, 363 (1986)
Heung LK, WSRC-TR-94-0596 (1994)
Miller JM, Cantlon CL, AECL-7698 (1982)

[Referenced By]

[1] Evans EA, Tritium and Its Compounds, p. 215, John Wiley and Sons, Toronto (1974)

[2] Yaraskavitch JM, Holtslander WJ, Proc. Int. Symp. on the Metal-Hydrogen Systems, Miami Beach, FL., T.N. Veziroglu, Ed., p. 619, Pergamon, Oxford (1982)

[3] Heung LK, WSRC-MS-94-0491 (1994)

[4] Holtslander WJ, Yaraskavitch JM, AECL-7151 (1981)

[5] Holtslander WJ, Miller JM, AECL-7757 (1982)

[6] Noga JO, OH-81-368-K (1981)

[7] Dushman S, Vacuum Technique, p. 600, John Wiley & Sons, Inc., New York (1949)

[8] Paek S, Ahn DH, Kim KR, Lee M, Chung H, J. Ind. Eng. Chem., 10(3), 468 (2004)

[9] Paek S, Ahn DH, Kim KR, Chung H, J. Ind. Eng. Chem., 8(1), 12 (2002)

[10] Kherani NP, Shmayda WT, Fusion Technol., 8, 2399 (1985)

[11] Miller JM, Holtslander WJ, Johnson RE, Taylor WR, INIS-mf-12730, 363 (1986)

[12] Heung LK, WSRC-TR-94-0596 (1994)

[13] Miller JM, Cantlon CL, AECL-7698 (1982)