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Semi-Empirical Model of Toluene Transport in Polyethylene Membranes Based on the Data Using a New Type of Apparatus for Determining Gas Permeability, Diffusivity and Solubility

SYSNO ASEP	0364388
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Semi-Empirical Model of Toluene Transport in Polyethylene Membranes Based on the Data Using a New Type of Apparatus for Determining Gas Permeability, Diffusivity and Solubility
Author(s)	Setničková, Kateřina (UCHP-M)_{RID, ORCID, SAI} Wagner, Zdeněk (UCHP-M)_{RID, SAI, ORCID} Noble, R. (FR) Uchytil, Petr (UCHP-M)_{RID, SAI}
Source Title	Chemical Engineering Science. - : Elsevier - ISSN 0009-2509 Roč. 66, č. 22 (2011), s. 5566-5574
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	mass transfer ; diffusion ; membranes
Subject RIV	CB - Analytical Chemistry, Separation
R&D Projects	GA104/09/1165 GA ČR - Czech Science Foundation (CSF)
	ME 889 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	GCP106/10/J038 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z40720504 - UCHP-M (2005-2011)
UT WOS	000295724600012
DOI	10.1016/j.ces.2011.07.037
Annotation	Solubility, diffusivity and permeability of toluene vapors in low-density polyethylene (LDPE) membranes of various thicknesses at different temperatures 30, 40 and 50 degrees C in the range of relative vapor pressure were measured using new type of permeation apparatus. Moreover, special construction of the new cell enables determination of the permeant amount sorbed in the membrane in the steady state operation of vapor permeation. The simple semi-empirical model of toluene transport in a polyethylene membrane based on relation between experimentally obtained effective diffusion coefficients and concentration dependent diffusion coefficients evaluated from experiments on a new permeation apparatus was proposed. The model enables estimation of toluene fluxes, sorption in the steady state of vapor permeation and concentration profiles in a polyethylene membrane from equilibrium sorption isotherms and effective diffusion coefficients.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2012

Number of the records: 1