Search Results - "Choi, Seungrag"
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Aging kinetics on silver-functionalized silica aerogel in off-gas streams including dry air, humid air, NO and NO2
Published in Chemical engineering journal advances (15-11-2021)“…•Continuous-flow aging and iodine adsorption processes on Ag0-aerogel.•Iodine loading capacity decreased with increasing aging time and temperature.•Effects of…”
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Journal Article -
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Silver Sulfide and Silver Sulfate as Aging Byproducts and Adsorbents for Gaseous Iodine Capture in Spent Nuclear Fuel Reprocessing
Published in Industrial & engineering chemistry research (28-09-2022)“…While it is considered a promising adsorbent for radioiodine capture in spent nuclear fuel reprocessing off-gas, silver functionalized silica aerogel…”
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Kinetics of aging process on reduced Ag exchanged mordenite in dry air and humid air
Published in AIChE journal (01-08-2021)“…Aging effects of off‐gas streams including dry air and humid air on reduced silver exchanged mordenite (Ag0Z) were studied. Aged Ag0Z was prepared by exposing…”
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Adsorption of methyl iodide on reduced silver‐functionalized silica aerogel: Kinetics and modeling
Published in AIChE journal (01-04-2021)“…The low concentration methyl iodide (CH3I) adsorption process on reduced silver‐functionalized silica aerogel (Ag0‐Aerogel) was studied. The kinetic data were…”
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Influence of elevated temperature and oxygen on the capture of radioactive iodine by silver functionalized silica aerogel
Published in Microporous and mesoporous materials (01-02-2025)“…Reprocessing is considered a competent strategy for spent nuclear fuel management, yet radioiodine (129I) is emitted in reprocessing off-gas as a hazardous…”
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Silver-functionalized silica aerogel for iodine capture: Adsorbent aging by NO2 in spent nuclear fuel reprocessing off-gas
Published in Microporous and mesoporous materials (01-05-2022)“…Silver-functionalized silica aerogel (Ag0-Aerogel) is considered a promising porous adsorbent for the capture of iodine from nuclear fuel reprocessing off-gas…”
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Heterogeneous catalytic esterification of oleic acid under sub/supercritical methanol over γ-Al2O3
Published in Fuel (Guildford) (15-05-2020)“…[Display omitted] •Continuous esterification of oleic acid and supercritical methanol with γ-Al2O3.•Both the global and Eley-Rideal mechanism-based kinetics…”
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Capture of Iodine from Nuclear-Fuel-Reprocessing Off-Gas: Influence of Aging on a Reduced Silver Mordenite Adsorbent after Exposure to NO/NO2
Published in ACS applied materials & interfaces (04-11-2020)“…Iodine radioisotopes released during nuclear fuel reprocessing must be removed from the off-gas stream before discharge. One promising material for iodine…”
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Aging Study of Silver-Exchanged Mordenite and Silver-Functionalized Silica Aerogel in Dry Air, Humid Air, NO and NO2
Published 01-01-2021“…Iodine-129 (129I) is one of the volatile radioactive species in the off-gas streams generated from the spent nuclear fuel reprocessing system, and it is…”
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