the generalized maxwell-stefan model coupled with vacancy solution theory of adsorption for diffusion in zeolites

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ID: 251096
2014
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Ranked #25 of 51 articles by views in ieee transactions on image processing : a publication of the ieee signal processing society

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Abstract
It seems using the Maxwell-Stefan (M-S) diffusion model in combination with the vacancy solution theory (VST) and the single-component adsorption data provides a superior, qualitative, and quantitative prediction of diffusion in zeolites. In the M-S formulation, thermodynamic factor (Г) is an essential parameter which must be estimated by an adsorption isotherm. Researchers usually utilize the simplest form of adsorption isotherms such as Langmuir or improved dual-site Langmuir, which eventually cannot predict the real behavior of mixture diffusion particularly at high concentrations of adsorbates because of ignoring nonideality in the adsorbed phase. An isotherm model with regard to the real behavior of the adsorbed phase, which is based on the vacancy solution theory (VST) and considers adsorbate-adsorbent interactions, is employed. The objective of this study is applying vacancy solution theory to pure component data, calculating thermodynamic factor (Г), and finally evaluating the simulation results by comparison with literature. Vacancy solution theory obviously predicts thermodynamic factor better than simple models such as dual-site Langmuir.
Reference Key
salehi2014iranianthe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Seyyed Milad Salehi;Mahmood Reza Rahimi
Journal ieee transactions on image processing : a publication of the ieee signal processing society
Year 2014
DOI
10.22050/ijogst.2014.5800
URL
http://ijogst.put.ac.ir/article_5800_19c8b86029963b4dd04759770d84d5b3.pdf
Keywords
adsorption petroleum productsgas industry

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