A Simple Model Predicting Iodine Profile in a Packed Bed of Silica-Gel Impregnated with Silver Nitrate

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概要

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• Based on a simple adsorption theory, a mathematical model was proposed to predict axial iodine profiles of the column of silica gel impregnated with silver nitrate (hereinafter referred to as Ag–S) in an off-gas treatment system for spent fuel dissolution. The unknown parameters of the model: the effective diffusion coefficient Dea and the Langmuir coefficient K were determined by curve fitting of iodine profile experimentally obtained. At 423 K, Dea and K were found to be 5.60×10−7m2·s−1 and 1.0×105m3·kg−1, respectively. Using the parameter values, the model could well predict the iodine profiles obtained at 423 K in the previous works under different experimental conditions. Furthermore, the effect of silver contents on the iodine profiles was reasonably predicted. It was suggested that the proposed model is simple and would be useful to predict the iodine profiles in Ag–S adsorbent columns.

• 社団法人 日本原子力学会の論文
• 2002-03-25

著者

• UCHIYAMA Gunzo

  Japan Atomic Energy Agency

• Uchiyama Gunzo

  Japan Atomic Energy Research Institute

• MINEO Hideaki

  Japan Atomic Energy Agency

• Mineo H

  Japan Atomic Energy Res. Inst. Ibaraki

• GOTOH Minoru

  Japan Atomic Energy Research Institute

• IIZUKA Masaru

  Japan Atomic Energy Research Institute

• FUJISAKI Susumu

  Japan Atomic Energy Research Institute

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• An Investigation into Dissolution Rate of Spent Nuclear Fuel in Aqueous Reprocessing
• A Simple Model Predicting Iodine Profile in a Packed Bed of Silica-Gel Impregnated with Silver Nitrate

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