Published November 2023 | Version v1
Journal article Metadata-only

Study on iodine adsorption capacity and adsorption mechanism of AgY

Creators

  • 1. Key Laboratory of Nuclear Air Purification Technology, China Institute of Radiation Protection, Taiyuan, Shanxi (China)

Description

To systematically study the methyl iodide (CH3I) adsorption performance and adsorption mechanism of Ag ion exchange NaY zeolite (AgY), AgY adsorbents with different Ag content were selected. 16.6% AgY was capable of storing 150 mg/g and 275 mg/g of CH3I when the penetrated CH3I reached 1‰ and 100% inlet concentration. TEM and EDS results presented a high relationship between Ag dispersion and CH3I adsorption capability. The formation of a stable AgI complex rationalized the CH3I adsorption mechanism on AgY. Compared to AgX, AgY was verified to possess a strong acid resistance by FT-IR, SEM and XRD. The effect of three key parameters (temperature, humidity and gas velocity) on CH3I adsorption was carefully investigated by orthogonal experiment design. The experimental results showed that AgY had better iodine removal performance at a high temperature, low humidity, and low flow rate. This work provides technical reference for further engineering applications of 16.6%AgY in spent fuel reprocessing plants. (author)

Availability note (English)

Available from DOI: https://doi.org/10.1080/00223131.2023.2276397

Additional details

Identifiers

DOI
10.1080/00223131.2023.2276397;

Publishing Information

Journal Title
Journal of Nuclear Science and Technology (Tokyo) (Online)
Journal Volume
61
Journal Issue
6
Journal Page Range
p. 810-821
ISSN
1881-1248

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
56002854
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
ADSORBENTS; ADSORPTION; CONTAINMENT SHELLS; CORROSION RESISTANCE; EXHAUST SYSTEMS; METHYL IODIDE; NUCLEAR POWER PLANTS; REPROCESSING; SPENT FUELS; X-RAY DIFFRACTION; ZEOLITES
Descriptors DEC
COHERENT SCATTERING; CONTAINMENT; DIFFRACTION; ENERGY SOURCES; FUELS; HALOGENATED ALIPHATIC HYDROCARBONS; INORGANIC ION EXCHANGERS; IODINATED ALIPHATIC HYDROCARBONS; ION EXCHANGE MATERIALS; MATERIALS; MINERALS; NUCLEAR FACILITIES; NUCLEAR FUELS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC IODINE COMPOUNDS; POWER PLANTS; REACTOR MATERIALS; SCATTERING; SEPARATION PROCESSES; SILICATE MINERALS; SORPTION; THERMAL POWER PLANTS

Optional Information

Notes
34 refs., 12 figs., 7 tabs.