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Dive into the research topics where Pavol Rajniak is active.

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Featured researches published by Pavol Rajniak.


Chemical Engineering Science | 2000

On the modeling of PSA cycles with hysteresis-dependent isotherms

František Štěpánek; Milan Kubíček; Miloš Marek; Miroslav Soos; Pavol Rajniak; Ralph T. Yang

Abstract A four-step pressure swing adsorption (PSA) process for air drying on a silica gel dessicant is considered. The effects of hysteresis in adsorption/desorption equilibrium isotherms and of loading dependence of the effective diffusion coefficient on the process performance are investigated on a mathematical model. A comparative parametric study reveals that for identical operating conditions, hysteresis can be detrimental to product purity. Multiplicity of cyclic steady states is shown to exist as a result of hysteresis. A transient regime invoked by a gradual change in the inlet air humidity is discussed.


Aiche Journal | 1996

Unified network model for diffusion of condensable vapors in porous media

Pavol Rajniak; Ralph T. Yang


Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2007

Characterisation of porous media by the virtual capillary condensation method

František Štěpánek; Miroslav Soos; Pavol Rajniak


Aiche Journal | 1993

A simple model and experiments for adsorption‐desorption hysteresis: Water vapor on silica gel

Pavol Rajniak; Ralph T. Yang


Aiche Journal | 1999

Unified network model for adsorption–desorption in systems with hysteresis

Pavol Rajniak; Miroslav Soos; Ralph T. Yang


Aiche Journal | 1994

Hysteresis-dependent adsorption-desorption cycles: Generalization for isothermal conditions

Pavol Rajniak; Ralph T. Yang


Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2007

Percolation models of adsorption–desorption equilibria and kinetics for systems with hysteresis

Miroslav Soos; Pavol Rajniak; František Štěpánek


Aiche Journal | 1999

Unified network model for adsorptiondesorption in systems with hysteresis

Pavol Rajniak; Miroslav Soos; Ralph T. Yang


Archive | 2002

Percolation Models of Adsorption-Desorption Kinetics with Hysteresis

Miroslav Soos; Pavol Rajniak


Archive | 2000

Mathematical and Experimental Modelling of Sorption Processes in a Fixed Bed Adsorber

Miroslav Soos; Pavol Rajniak; R. Žajdlík

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František Štěpánek

Institute of Chemical Technology in Prague

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Miloš Marek

Institute of Chemical Technology in Prague

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