Measurement of mass transfer characteristics of gas/liquid reactors by sulphite system using on-line monitoring UV absorption

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F11%3A43892355" target="_blank" >RIV/60461373:22340/11:43892355 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cej.2010.12.075" target="_blank" >http://dx.doi.org/10.1016/j.cej.2010.12.075</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2010.12.075" target="_blank" >10.1016/j.cej.2010.12.075</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of mass transfer characteristics of gas/liquid reactors by sulphite system using on-line monitoring UV absorption

Popis výsledku v původním jazyce

The UV absorption at a wavelength of 255nmis used for in-line monitoring of sulphite concentration. The method was originally used under conditions when calibration curve is pH-dependent. This dependence complicates the calibration and thus prevents wider application of the method for measurements of mass transfer characteristics of various absorption devices by the sulphite system. It is shown that the calibration curve is pH independent if the pH of solution is higher than 8. This simplifies the calibration and may promote broader application of this faster and more comfortable UV method in the engineering praxis. This is demonstrated on measurement of kinetic data of the reaction (measured in stirred cell), physical mass transfer coefficient kLa andinterfacial area a (measured in mechanically agitated gas-liquid dispersion) using solution of 0.8M Na2SO3 with various cobalt catalyst concentrations ranging from 5x10?7 to 2x10?3 M and pH in the range of 8-8.7. Effects of surface tensi

Název v anglickém jazyce

Measurement of mass transfer characteristics of gas/liquid reactors by sulphite system using on-line monitoring UV absorption

Popis výsledku anglicky

The UV absorption at a wavelength of 255nmis used for in-line monitoring of sulphite concentration. The method was originally used under conditions when calibration curve is pH-dependent. This dependence complicates the calibration and thus prevents wider application of the method for measurements of mass transfer characteristics of various absorption devices by the sulphite system. It is shown that the calibration curve is pH independent if the pH of solution is higher than 8. This simplifies the calibration and may promote broader application of this faster and more comfortable UV method in the engineering praxis. This is demonstrated on measurement of kinetic data of the reaction (measured in stirred cell), physical mass transfer coefficient kLa andinterfacial area a (measured in mechanically agitated gas-liquid dispersion) using solution of 0.8M Na2SO3 with various cobalt catalyst concentrations ranging from 5x10?7 to 2x10?3 M and pH in the range of 8-8.7. Effects of surface tensi

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

<a href="/cs/project/GA104%2F09%2F1810" target="_blank" >GA104/09/1810: Mechanismus přestupu hmoty mezi plynem a kapalinou. Vliv difuzivity a tuhých mikro- a nano- částic.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

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Svazek periodika

167

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

314-321

Kód UT WoS článku

000288586100037

EID výsledku v databázi Scopus

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