Adsorption of iodine on hydrogen-reduced silver-exchanged mordenite: Experiments and modeling

Nan, Yue; Tavlarides, Lawrence L.; DePaoli, David W.

doi:10.1002/aic.15432

Adsorption of iodine on hydrogen-reduced silver-exchanged mordenite: Experiments and modeling

Journal Article · Wed Aug 03 00:00:00 EDT 2016 · AIChE Journal

DOI:https://doi.org/10.1002/aic.15432· OSTI ID:1324201

Nan, Yue ^[1]; Tavlarides, Lawrence L. ^[1]; DePaoli, David W. ^[2]

Syracuse Univ., Syracuse, NY (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The adsorption process of iodine, a major volatile radionuclide in the off-gas streams of spent nuclear fuel reprocessing, on hydrogen-reduced silver-exchanged mordenite (Ag⁰Z) was studied at the micro-scale. The gas-solid mass transfer and reaction involved in the adsorption process were investigated and evaluated with appropriate models. Optimal conditions for reducing the silver-exchanged mordenite (AgZ) in a hydrogen stream were determined. Kinetic and equilibrium data of iodine adsorption on Ag⁰Z were obtained by performing single-layer adsorption experiments with experimental systems of high precision at 373–473 K over various iodine concentrations. Results indicate approximately 91% to 97% of the iodine adsorption was through the silver-iodine reaction. The effect of temperature on the iodine loading capacity of Ag⁰Z was discussed. In conclusion, the Shrinking Core model describes the data well, and the primary rate controlling mechanisms were macro-pore diffusion and silver-iodine reaction. © 2016 American Institute of Chemical Engineers AIChE J, 2016

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: ORNL work for others; USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1324201

Journal Information:: AIChE Journal, Journal Name: AIChE Journal; ISSN 0001-1541

Publisher:: American Institute of Chemical EngineersCopyright Statement

Country of Publication:: United States

Language:: English

References (23)

Comparison of kinetic and diffusional models for solid-gas reactions Ishida, M.; Wen, C. Y. AIChE Journal, Vol. 14, Issue 2 https://doi.org/10.1002/aic.690140218	journal	March 1968
Natural zeolitic material of the clinoptilolite type and its AgI form Reháková, M.; Sopková, A.; Šepelák, V. Journal of Inclusion Phenomena and Molecular Recognition in Chemistry, Vol. 23, Issue 2 https://doi.org/10.1007/BF00707893	journal	June 1995
FTIR studies of butane, toluene and nitric oxide adsorption on Ag exchanged NaMordenite Aspromonte, Soledad G.; Miró, Eduardo E.; Boix, Alicia V. Adsorption, Vol. 18, Issue 1 https://doi.org/10.1007/s10450-011-9370-2	journal	October 2011
Iodine adsorption on silver-exchanged titania-derived adsorbents Wu, Lan; Sawada, James A.; Kuznicki, Daniel B. Journal of Radioanalytical and Nuclear Chemistry, Vol. 302, Issue 1 https://doi.org/10.1007/s10967-014-3252-5	journal	June 2014
Iodine adsorption and structure of activated carbons Juhola, A. J. Carbon, Vol. 13, Issue 5 https://doi.org/10.1016/0008-6223(75)90016-0	journal	January 1975
Iodine-129 in the environment of a nuclear fuel reprocessing plant: I. 127I and 127I contents of soils, food crops and animal products Robens, E.; Aumann, D. C. Journal of Environmental Radioactivity, Vol. 7, Issue 2 https://doi.org/10.1016/0265-931X(88)90005-7	journal	January 1988
Physical chemistry of iodine and removal of iodine from gas streams Chamberlain, A. C.; Eggleton, A. E. J.; Megaw, W. J. Journal of Nuclear Energy. Parts A/B. Reactor Science and Technology, Vol. 17, Issue 11-12 https://doi.org/10.1016/0368-3230(63)90066-1	journal	December 1963
Study on adsorption performance of coal based activated carbon to radioactive iodine and stable iodine Zhou, Junbo; Hao, Shan; Gao, Liping Annals of Nuclear Energy, Vol. 72 https://doi.org/10.1016/j.anucene.2014.05.028	journal	October 2014
Solidification and stabilization of silver mordenite used to control radioiodine emissions from Hanford’s Waste Treatment Plant Scheele, Randall D.; Wend, Christopher F. Annals of Nuclear Energy, Vol. 78 https://doi.org/10.1016/j.anucene.2014.12.019	journal	April 2015
AgNaMordenite catalysts for hydrocarbon adsorption and deNOx processes Aspromonte, Soledad G.; Serra, Ramiro M.; Miró, Eduardo E. Applied Catalysis A: General, Vol. 407, Issue 1-2 https://doi.org/10.1016/j.apcata.2011.08.033	journal	November 2011
Isotherms for Water Adsorption on Molecular Sieve 3A: Influence of Cation Composition Lin, Ronghong; Ladshaw, Austin; Nan, Yue Industrial & Engineering Chemistry Research, Vol. 54, Issue 42 https://doi.org/10.1021/acs.iecr.5b01411	journal	July 2015
Novel Long-Term Immobilization Method for Radioactive Iodine-129 Using a Zeolite/Apatite Composite Sintered Body Watanabe, Yujiro; Ikoma, Toshiyuki; Yamada, Hirohisa ACS Applied Materials & Interfaces, Vol. 1, Issue 7 https://doi.org/10.1021/am900251m	journal	June 2009
Kinetics of Water Vapor Adsorption on Single-Layer Molecular Sieve 3A: Experiments and Modeling Lin, Ronghong; Liu, Jiuxu; Nan, Yue Industrial & Engineering Chemistry Research, Vol. 53, Issue 41 https://doi.org/10.1021/ie5024645	journal	September 2014
Radioactive Iodine Capture in Silver-Containing Mordenites through Nanoscale Silver Iodide Formation Chapman, Karena W.; Chupas, Peter J.; Nenoff, Tina M. Journal of the American Chemical Society, Vol. 132, Issue 26 https://doi.org/10.1021/ja103110y	journal	July 2010
Study of the Nature and Location of Silver in Ag-Exchanged Mordenite Catalysts. Characterization by Spectroscopic Techniques Aspromonte, Soledad G.; Mizrahi, Martín D.; Schneeberger, Florencia A. The Journal of Physical Chemistry C, Vol. 117, Issue 48 https://doi.org/10.1021/jp4046269	journal	November 2013
Determining Quantitative Kinetics and the Structural Mechanism for Particle Growth in Porous Templates Zhao, Haiyan; Nenoff, Tina M.; Jennings, Guy The Journal of Physical Chemistry Letters, Vol. 2, Issue 21 https://doi.org/10.1021/jz201260n	journal	October 2011
Effect of Pore Blockage on Adsorption Isotherms and Dynamics: Anomalous Adsorption of Iodine on Activated Carbon Bhatia, S. K.; Liu, F.; Arvind, G. Langmuir, Vol. 16, Issue 8 https://doi.org/10.1021/la991418h	journal	April 2000
Heat Capacity of Silver Iodide. I. Experiments on Annealed Samples Perrott, C. M.; Fletcher, N. H. The Journal of Chemical Physics, Vol. 48, Issue 5 https://doi.org/10.1063/1.1669404	journal	March 1968
Heat Capacity of Silver Iodide. II. Theory Perrott, C. M.; Fletcher, N. H. The Journal of Chemical Physics, Vol. 48, Issue 6 https://doi.org/10.1063/1.1669502	journal	March 1968
Index to Judicial Decisions No authors listed Land Use Law & Zoning Digest, Vol. 31, Issue 4, p. 21-23 https://doi.org/10.1080/00947598.1979.10395313	journal	April 1979
Stability and Chemical Form of Iodine Sorbed on Silver-Exchanged Zeolite X Matsuoka, Shingo; Nakamura, Hirone; Tamura, Takaaki Journal of Nuclear Science and Technology, Vol. 21, Issue 11 https://doi.org/10.1080/18811248.1984.9731125	journal	November 1984
Applicability of a Model Predicting Iodine-129 Profile in a Silver Nitrate Silica-Gel Column for Dissolver Off-Gas Treatment of Fuel Reprocessing Mineo, Hideaki; Gotoh, Minoru; Iizuka, Masaru Separation Science and Technology, Vol. 38, Issue 9 https://doi.org/10.1081/SS-120020130	journal	January 2003
Radioactive Iodine and Krypton Control for Nuclear Fuel Reprocessing Facilities Soelberg, Nick R.; Garn, Troy G.; Greenhalgh, Mitchell R. Science and Technology of Nuclear Installations, Vol. 2013 https://doi.org/10.1155/2013/702496	journal	January 2013

Cited By (2)

Multicomponent adsorption isotherm modeling using thermodynamically inconsistent and consistent models Jadhav, Ananda J.; Srivastava, Vimal C. AIChE Journal, Vol. 65, Issue 11 https://doi.org/10.1002/aic.16727	journal	July 2019
Porous sorbents for the capture of radioactive iodine compounds: a review Huve, Joffrey; Ryzhikov, Andrey; Nouali, Habiba RSC Advances, Vol. 8, Issue 51 https://doi.org/10.1039/c8ra04775h	journal	January 2018

Similar Records

Capture of Iodine from Nuclear-Fuel-Reprocessing Off-Gas: Influence of Aging on a Reduced Silver Mordenite Adsorbent after Exposure to NO/NO₂

Journal Article · Thu Oct 22 00:00:00 EDT 2020 · ACS Applied Materials and Interfaces · OSTI ID:1684654

Iodine Loading of NO Aged Silver Exchanged Mordenite

Technical Report · Tue Sep 30 00:00:00 EDT 2014 · OSTI ID:1160343

Adsorption Equilibrium and Modeling of Water Vapor on Reduced and Unreduced Silver-Exchanged Mordenite

Journal Article · Mon Jun 26 00:00:00 EDT 2017 · Industrial and Engineering Chemistry Research · OSTI ID:1399935

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY

Adsorption of iodine on hydrogen-reduced silver-exchanged mordenite: Experiments and modeling

Citation Formats

References (23)

Cited By (2)

Similar Records

Related Subjects