Effects of various carrier gases, temperature and intraparticle diffusivity on breakthrough characteristics of krypton in charcoal bed
Description
The breakthrough characteristics of Kr gas in charcoal bed were studied at the temperature of 30 ∼ -75℃, and theoretically analyzed taking account of the Kr, carrier gas-charcoal equilibrium, and the intraparticle diffusivity. It was found that the effects of various carrier gases on the breakthrough characteristics of Kr, and the effect of temperature on the dynamic equilibrium coefficient and the selectivity of adsorption can be explained by modifying the Langmuir's equation for binary gas mixtures. The intraparticle diffusivity was affected by the surface diffusion, and its temperature dependence could be explained by considering the parallel pore model for the gas phase diffusion and the equation of surface diffusivity by Sladek and Gilliland et al. (author)
Availability note (English)
Available from DOI: https://doi.org/10.3327/jaesj.21.268Abstract (Japanese)
本報では、30∼-75℃において、Krの動的吸脱着実験および理論計算による破過曲線の検討を行ない、また静的吸着平衡実験を行なって、キャリアガスの共吸着の影響を純成分ガスの平衡関係によって説明する方法を検討した。さらに、サーマルスイング方式に対する基礎的知見を得るため、選択係数(分離係数)、動的吸着平衡定数の温度による変化について考察を行なった。また、物質移動抵抗を破過曲線の解析から求め、低温における粒子内拡散係数の変化を説明する方法を検討した。 (著者)Additional details
Additional titles
- Original title (Japanese)
- 活性炭充填層におけるクリプトン破過特性に及ぼすキャリアガス,操作温度,粒子内拡散係数の影響
Identifiers
- DOI
- 10.3327/jaesj.21.268;
Publishing Information
- Journal Title
- Nippon Genshiryoku Gakkai-Shi
- Journal Volume
- 21
- Journal Issue
- 3
- Journal Page Range
- p. 268-275
- ISSN
- 0004-7120
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 53100913
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ACTIVATED CARBON; ADSORPTION; CARRIERS; CHARCOAL; DIAGRAMS; DIFFUSION; EQUILIBRIUM; EXPERIMENTAL DATA; GASES; KRYPTON; SURFACES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K
- Descriptors DEC
- ADSORBENTS; CARBON; DATA; ELEMENTS; FLUIDS; GASES; INFORMATION; NONMETALS; NUMERICAL DATA; RARE GASES; SORPTION; TEMPERATURE RANGE
Optional Information
- Notes
- 9301000; This record replaces 11501805