Počet záznamů: 1

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
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	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
Tvůrce(i)	Setničková, Kateřina (UCHP-M)_{RID, ORCID, SAI} Wagner, Zdeněk (UCHP-M)_{RID, SAI, ORCID} Noble, R. (FR) Uchytil, Petr (UCHP-M)_{RID, SAI}
Zdroj.dok.	Chemical Engineering Science. - : Elsevier - ISSN 0009-2509 Roč. 66, č. 22 (2011), s. 5566-5574
Poč.str.	9 s.
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	mass transfer ; diffusion ; membranes
Vědní obor RIV	CB - Analytická chemie, separace
CEP	GA104/09/1165 GA ČR - Grantová agentura ČR
	ME 889 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
	GCP106/10/J038 GA ČR - Grantová agentura ČR
CEZ	AV0Z40720504 - UCHP-M (2005-2011)
UT WOS	000295724600012
DOI	10.1016/j.ces.2011.07.037
Anotace	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.
Pracoviště	Ústav chemických procesů
Kontakt	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Rok sběru	2012

Počet záznamů: 1