Flux enhancement by gas - liquid two - phase flow for crossflow microfiltration in tubular ceramic membrane: Performance and mechanism

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F09%3A39883080" target="_blank" >RIV/00216275:25310/09:39883080 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Flux enhancement by gas - liquid two - phase flow for crossflow microfiltration in tubular ceramic membrane: Performance and mechanism

Popis výsledku v původním jazyce

Application of the gas-liquid two-phase flow for flux enhancement during the microfiltration of aqueous TiO2 dispersions on Al2O3 tubular membrane has been studied. This study focuses on the influence of liquid and gas flow velocity and feed concentration on flux and development of mathematical model for flux prediction. The results of experiments show positive effect of constant gas-liquid two-phase flow on the flux. From analysis of experimental results based on dead-end filtration model it may be concluded that two-phase flow seems to expand the particle cake as it increases both cake porosity and thickness, thus allowing higher fluxes. For the periodical gas flow the flux enhancement is not so significant and strongly depends on the periodical gasflow mode and on the concentration of dispersion used. There is no concentration for which air injection has no effect on the permeate flux. The results showed good agreement between model prediction and experimental data.

Název v anglickém jazyce

Flux enhancement by gas - liquid two - phase flow for crossflow microfiltration in tubular ceramic membrane: Performance and mechanism

Popis výsledku anglicky

Application of the gas-liquid two-phase flow for flux enhancement during the microfiltration of aqueous TiO2 dispersions on Al2O3 tubular membrane has been studied. This study focuses on the influence of liquid and gas flow velocity and feed concentration on flux and development of mathematical model for flux prediction. The results of experiments show positive effect of constant gas-liquid two-phase flow on the flux. From analysis of experimental results based on dead-end filtration model it may be concluded that two-phase flow seems to expand the particle cake as it increases both cake porosity and thickness, thus allowing higher fluxes. For the periodical gas flow the flux enhancement is not so significant and strongly depends on the periodical gasflow mode and on the concentration of dispersion used. There is no concentration for which air injection has no effect on the permeate flux. The results showed good agreement between model prediction and experimental data.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Trends in Chemical Engineering

ISSN

0972-4478

e-ISSN

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Svazek periodika

12

Číslo periodika v rámci svazku

neuveden

Stát vydavatele periodika

IN - Indická republika

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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