吸着剤の粒内拡散係数吸着量依存性の簡易決定法の開発

开发一种确定吸附剂颗粒内扩散系数的吸附量依赖性的简单方法

• 批准号: 02650685
• 负责人: 岡崎 守男
• 金额: $ 1.41万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02650685/
• 关键词: 粒状吸着剤; 粒内拡散係数; 吸着量依存性; 特性関数

球状吸着剤の粒内拡散係数吸着量依存性を考慮した場合の吸・脱着過程を,浸透期間と初期条件に依存しない期間の二つの極限期間に分離し,それぞれの期間に対して理論的・数値解析的検討を加えることにより,拡散係数の吸着量依存性がいかなる関数形の場合でも成立しかつ拡散係数を含まない,吸・着速度対平均吸着量の一般的関係(この関係より得られる関数を特性関数と呼ぶ)を導出することを目的として,理論的・実験的検討を加えた結果以下の成果を得た。1.回分吸・脱着過程に対する理論的検討まず(1)吸着剤内物質移動基礎式を導出し,(2)吸着量依存性を示す粒内拡散係数を用いて吸・脱着過程を数値計算により求め,これを数値実験結果とした。一方(3)拡散係数が吸着量に依存しない系の吸・脱着過程を,浸透期間と初期条件に影響されない期間の分け,それぞれの期間に対して解析的手法を用いて各期間に対する特性関数を求めた。このとき境界条件は表面吸着量を一定とした。(4)(3)で得た特性関数を用いて(2)で行った数値実験結果を整理することで,拡散係数が吸着量依存性を有する場合にも適用可能な最終的特性関数の形を決定した。なお今後この特性関数を利用して,粒内拡散係数の吸着量依存性を決定する手法の確立を目指す。2.回分吸着実験ニトロベンゼンー活性炭系,安息香酸ー活性炭系に対して回分微分吸着実験を行ない,粒内拡散係数の吸着量依存性を求めた結果,吸着量の増加と共に拡散係数はほぼ指数関数的に増大した。今後は同系に対して粒内吸着量変化の大きさ範囲で積分吸着実験を行ない,1.で展開した理論の検証を行なう予定である。

The adsorption capacity of spherical adsorbent particles is dependent on the adsorption capacity, the initial conditions of the immersion period are dependent on the absorption process, and the conditions at the beginning of the immersion period are dependent on the separation between the two periods, the mathematical analysis of the theoretical analysis of the theory of temperature measurement in the period of absorption, and the analysis of the theoretical basis of the theory of temperature measurement. The absorption capacity is dependent on the absorption capacity, the absorption capacity is dependent on the absorption capacity, the absorption rate is the average absorption capacity, the average absorption rate is the same as the average absorption rate, and the average absorption rate is the same as that of the average absorption rate (the average absorption rate is the same as that of the average absorption capacity). 1. The absorption and desorption process theory is related to (1) the absorption of the internal matter and the movement of the matrix, and (2) the absorption dependence indicates that the intra-particle dispersion is calculated by the absorption and desorption process theory, and the result of the absorption is satisfactory. One side (3) the amount of absorption depends on the absorption process, and the initial conditions of the immersion period have an effect on the separation between periods, and the method of analyzing the characteristics of each period is used to calculate the number of characteristics in each period. The amount of adsorption on the surface must be affected by the boundary conditions. (4) (3) the number of properties is determined by the number of characteristics. (2) the number of properties is determined by the number of characteristics that can be determined by the number of characteristics. In the future, the number of characteristics is determined by the number of particles, the number of particles, the amount of absorption, the method of determining the number of particles and the number of particles. two。 The absorption of benzoin, benzoin, ben In the future, in the future, the amount of intragranular absorption will increase in a large range. The development of the theory, the theory, the line, the schedule, the schedule, the schedule and the schedule.