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A new multi-mechanism adsorption kinetic model and its relation to mass transfer coefficients
Surfaces and Interfaces ( IF 6.2 ) Pub Date : 2021-08-27 , DOI: 10.1016/j.surfin.2021.101422
Chuncai Yao 1 , Chenxi Zhu 1
Affiliation  

A new multi-mechanism kinetic model for batch adsorption is proposed. A dimensionless parameter in the model serves as a mechanism indicator in the sense that the model converts to the pseudo-first-order (PFO), the Vermeulen (intraparticle diffusion) and the film diffusion models as the dimensionless parameter changes its values. Expressions relating the model parameters and the mass transfer coefficients are obtained which allow for the estimation of the film mass transfer and the intraparticle diffusion coefficients from `show that the estimated mass transfer coefficients are in reasonable agreement with literature values.



中文翻译:

一种新的多机制吸附动力学模型及其与传质系数的关系

提出了一种新的批量吸附多机理动力学模型。模型中的无量纲参数用作机制指标,因为随着无量纲参数改变其值,模型转换为伪一级 (PFO)、Vermeulen(粒子内扩散)和膜扩散模型。获得了与模型参数和传质系数相关的表达式,其允许估计薄膜传质和粒子内扩散系数,表明估计的传质系数与文献值合理一致。

更新日期:2021-09-02
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