Oxidation kinetics of spent low-level radioactive resins

Y. J. Huang; H. Paul Wang; Chih C. Chao; H. H. Liu; M. C. Hsiao; S. H. Liu

doi:10.13182/NSE05-A2555

Oxidation kinetics of spent low-level radioactive resins

Y. J. Huang, H. Paul Wang, Chih C. Chao, H. H. Liu, M. C. Hsiao, S. H. Liu

Department of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Experimentally, two-stage oxidation of spent low-level radioactive resin was found by thermo-gravimetric analysis (TGA). About 24% of the spent resins was oxidized at 600 to 900 K. Online Fourier transform infrared spectra showed that the decomposition of the -SO₃H species in the resin to SO ₂ occurred at 670 and 1020 K. The numerical calculation from TGA weight loss data at different heating rates showed that the global activation energies for oxidation of the spent resins were 108 to 138 kJ·mol ^-1. The reaction orders for resin and oxygen were about 1.0 and 3.5, respectively. The global rate equations for oxidation of the resin in the first and second stages can be expressed as dx₁/dt (s^-1 ) = 2.3 × 10⁷ (s^-1)exp[-117900(J·mol ^-1)/T(K)][1 - x (%)]^0.82 [O₂ (vt%)] ^3.5 (x denotes the reaction conversion) and dx₂/dt = 8.4 × 10¹⁷exp(-239500/RT) (1 - x)^0-9[O₂] ^4.5,respectively.

Original language	English
Pages (from-to)	355-360
Number of pages	6
Journal	Nuclear Science and Engineering
Volume	151
Issue number	3
DOIs	https://doi.org/10.13182/NSE05-A2555
Publication status	Published - 2005 Nov

All Science Journal Classification (ASJC) codes

Nuclear Energy and Engineering

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10.13182/NSE05-A2555

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@article{db9360bbfad54b6e8fea7ef5fd03723b,

title = "Oxidation kinetics of spent low-level radioactive resins",

abstract = "Experimentally, two-stage oxidation of spent low-level radioactive resin was found by thermo-gravimetric analysis (TGA). About 24% of the spent resins was oxidized at 600 to 900 K. Online Fourier transform infrared spectra showed that the decomposition of the -SO3H species in the resin to SO 2 occurred at 670 and 1020 K. The numerical calculation from TGA weight loss data at different heating rates showed that the global activation energies for oxidation of the spent resins were 108 to 138 kJ·mol -1. The reaction orders for resin and oxygen were about 1.0 and 3.5, respectively. The global rate equations for oxidation of the resin in the first and second stages can be expressed as dx1/dt (s-1 ) = 2.3 × 107 (s-1)exp[-117900(J·mol -1)/T(K)][1 - x (%)]0.82 [O2 (vt%)] 3.5 (x denotes the reaction conversion) and dx2/dt = 8.4 × 1017exp(-239500/RT) (1 - x)0-9[O2] 4.5,respectively.",

author = "Huang, {Y. J.} and Wang, {H. Paul} and Chao, {Chih C.} and Liu, {H. H.} and Hsiao, {M. C.} and Liu, {S. H.}",

year = "2005",

month = nov,

doi = "10.13182/NSE05-A2555",

language = "English",

volume = "151",

pages = "355--360",

journal = "Nuclear Science and Engineering",

issn = "0029-5639",

publisher = "American Nuclear Society",

number = "3",

}

TY - JOUR

T1 - Oxidation kinetics of spent low-level radioactive resins

AU - Huang, Y. J.

AU - Wang, H. Paul

AU - Chao, Chih C.

AU - Liu, H. H.

AU - Hsiao, M. C.

AU - Liu, S. H.

PY - 2005/11

Y1 - 2005/11

N2 - Experimentally, two-stage oxidation of spent low-level radioactive resin was found by thermo-gravimetric analysis (TGA). About 24% of the spent resins was oxidized at 600 to 900 K. Online Fourier transform infrared spectra showed that the decomposition of the -SO3H species in the resin to SO 2 occurred at 670 and 1020 K. The numerical calculation from TGA weight loss data at different heating rates showed that the global activation energies for oxidation of the spent resins were 108 to 138 kJ·mol -1. The reaction orders for resin and oxygen were about 1.0 and 3.5, respectively. The global rate equations for oxidation of the resin in the first and second stages can be expressed as dx1/dt (s-1 ) = 2.3 × 107 (s-1)exp[-117900(J·mol -1)/T(K)][1 - x (%)]0.82 [O2 (vt%)] 3.5 (x denotes the reaction conversion) and dx2/dt = 8.4 × 1017exp(-239500/RT) (1 - x)0-9[O2] 4.5,respectively.

AB - Experimentally, two-stage oxidation of spent low-level radioactive resin was found by thermo-gravimetric analysis (TGA). About 24% of the spent resins was oxidized at 600 to 900 K. Online Fourier transform infrared spectra showed that the decomposition of the -SO3H species in the resin to SO 2 occurred at 670 and 1020 K. The numerical calculation from TGA weight loss data at different heating rates showed that the global activation energies for oxidation of the spent resins were 108 to 138 kJ·mol -1. The reaction orders for resin and oxygen were about 1.0 and 3.5, respectively. The global rate equations for oxidation of the resin in the first and second stages can be expressed as dx1/dt (s-1 ) = 2.3 × 107 (s-1)exp[-117900(J·mol -1)/T(K)][1 - x (%)]0.82 [O2 (vt%)] 3.5 (x denotes the reaction conversion) and dx2/dt = 8.4 × 1017exp(-239500/RT) (1 - x)0-9[O2] 4.5,respectively.

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DO - 10.13182/NSE05-A2555

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SP - 355

EP - 360

JO - Nuclear Science and Engineering

JF - Nuclear Science and Engineering

IS - 3

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Oxidation kinetics of spent low-level radioactive resins

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