期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 57, 期 5, 页码 1468-1479出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.7b03579
关键词
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资金
- European Atomic Energy Community's (Euratom) Seventh Framework Programme FP7 [323217]
- French State under the program Investissements d'Avenir [ANR-11-RSNR-0013-01]
- Agence Nationale de la Recherche (ANR) [ANR-11-RSNR-0013] Funding Source: Agence Nationale de la Recherche (ANR)
We have investigated the iodine retention behavior of silver zeolite sorbents under a variety of conditions. First, a preliminary study was achieved for the liquid phase in order to determine (i) the main kinetic and thermodynamic characteristics pertaining to the adsorption behavior and (ii) the influence of some zeolitic parameters (nature of the framework, silver content, preparation method, etc.) on the adsorption capacities. Thanks to the online monitoring of gas phase 12 concentrations by UV vis spectroscopy, the iodine dynamic adsorption/desorption behavior of some selected sorbents was then studied at 100 degrees C. It was found that faujasite sorbents with silver content higher than 20 wt % could maintain a high working capacity (up to 330 mg/g) and present a high ability for irreversible trapping. Finally, the stability of trapped iodine species was evidenced using additional tests performed at 120 degrees C in the presence of irradiation and humidity.
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