Application of the LBET class models with the original fluid state model to an analysis of single, double and triple carbon dioxide, methane and nitrogen adsorption isotherms

Kwiatkowski, Mirosław; Duda, Jerzy; Milewska-Duda, Janina

doi:10.1016/j.colsurfa.2014.06.021

Cited by 7 publications

(6 citation statements)

References 50 publications

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“…where Z A stands for the effective intermolecular contact at the first layer (and so, for a surface roughness) and Q cp is an adhesion energy as in eq. 2, calculated with the Berthelot rule [4].…”

Section: Lbet Class Modelsmentioning

confidence: 99%

“…The optimization of the industrial application of porous materials of carbonaceous origin is mainly related to the proper selection of the production process conditions [2][3][4]. Thus, precise, quick, low-cost examination techniques are required for the description (and prediction) of the microporous structure properties during the production process.…”

Section: Introductionmentioning

confidence: 99%

“…where Z aa is the correcting factor for adsorbate interaction contacts, Z C is an averaged correcting factor for adsorbate-adsorbent contacts at the layers n > 1. Hence, it is assumed that layers n > 1 are homogenous [4]. The abovementioned assumptions leads to the LBET class model for heterogeneous surface, considered as a subsets of uniformly distributed primary sites with different corresponding value of Z A parameter.…”

mentioning

confidence: 99%

“…The abovementioned assumptions leads to the LBET class model for heterogeneous surface, considered as a subsets of uniformly distributed primary sites with different corresponding value of Z A parameter. This leads to the formulae [4]:…”

mentioning

confidence: 99%

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Modeling of adsorption phenomena in porous materials of carbonaceous origin by employing multilayer clustering based adsorption model (uniBET) with various variants of geometrical and energetical heterogeneities

Ziółkowska¹,

Milewska-Duda²,

Duda³

2016

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Multilayer clustering based adsorption model (uniBET) is aimed at adsorption phenomena modeling with having regard to surface geometrical and energetical heterogeneities. Facilitation of the uniBET model formulas leads to the LBET class models. A review on uniBET model and the analysis of the multilayer heterogeneous adsorption models for characterization of porous materials of carbonaceous origin are presented.

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Section: Lbet Class Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Modeling of adsorption phenomena in porous materials of carbonaceous origin by employing multilayer clustering based adsorption model (uniBET) with various variants of geometrical and energetical heterogeneities

Ziółkowska¹,

Milewska-Duda²,

Duda³

2016

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“…Resultant general formula, referred to as a uniBET model may be adapted to random microporous structures, yielding LBET class adsorption models. The latter is applicable to the microporous heterogeneous structures examination, by employing a multivariant fitting procedure (Kwiatkowski et al 2011(Kwiatkowski et al , 2014). …”

Section: Introductionmentioning

confidence: 99%

A qualitative approach to adsorption mechanism identification on microporous carbonaceous surfaces

2016

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The paper presents results of research on identification of localized and other adsorption mechanisms, on geometrically heterogeneous graphite-like carbonaceous surfaces. It attempts to get an insight into properties of individual adsorptive molecule movement near attractive adsorption sites, arising from adsorbent surface geometrical heterogeneities. In particular, a shape and volume of space occupied by the continuously moving molecule mass center are investigated. To this aim, kinematic equilibrium of the particle moving near a hypothetical microporous carbonaceous adsorbent wall is considered, and then compared with thermodynamic equilibrium. The proposed approach enables to examine effects of certain surface geometry on the shape and volume of space occupied by adsorbed particles, and so to outline temperature conditions for the localized adsorption mechanism predomination. Thus, it provides a cognitive basis to answer the question, what particular mechanism (localized or other-e.g. mobile) should be assumed for a class of adsorption systems in order to select the most appropriate mathematical adsorption model. Hence, it makes it possible for more reliable examination of real porous structures, based on adsorption measurements. Lennard-Jones potential intermolecular diameter for carbon atom interaction with adsorbate particle, at k-th position nm ð Þ s i i-th particle ''temperature'', average in phase KeywordsSpecific surface area of a movement space of i-th adsorbate particle mass center nm 2 ð Þ d fiDiameter of an equivalent sphere of volumeDiameter of an equivalent sphere of volumeMaxwell-Boltzmann distribution function at a given temperature T of isothermal adsorption; dimensionless Averaged in space v, boundary equipotential surface of an individual i-th particle moving

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High density Mongolian anthracite based porous carbon monoliths for methane storage by adsorption

et al. 2017

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Application of the LBET class models with the original fluid state model to an analysis of single, double and triple carbon dioxide, methane and nitrogen adsorption isotherms

Cited by 7 publications

References 50 publications

Modeling of adsorption phenomena in porous materials of carbonaceous origin by employing multilayer clustering based adsorption model (uniBET) with various variants of geometrical and energetical heterogeneities

Modeling of adsorption phenomena in porous materials of carbonaceous origin by employing multilayer clustering based adsorption model (uniBET) with various variants of geometrical and energetical heterogeneities

A qualitative approach to adsorption mechanism identification on microporous carbonaceous surfaces

High density Mongolian anthracite based porous carbon monoliths for methane storage by adsorption

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