Profile method? for the measurement of kLa and kVa in distillation column. Validation of ratebased distillation models using concentration profiles measured along the column

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F10%3A00023527" target="_blank" >RIV/60461373:22340/10:00023527 - 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

Profile method? for the measurement of kLa and kVa in distillation column. Validation of ratebased distillation models using concentration profiles measured along the column

Popis výsledku v původním jazyce

The "profile method" enables the determination of vapor- and liquid-side volumetric mass transfer coefficients kVa and kLa by comparing the concentration profiles measured in both phases in a distillation column with the simulated profiles. The method isbased on the fact that the shape of the concentration profiles along the column depend significantly on the distribution of the mass transfer resistance between the liquid and the vapor phases. This makes possible the measuring of kLa and kVa directly in the distillation columns, in the same manner is possible in absorption columns, and therefore to validate the distillation models more conclusively than by means of comparing the experimental and calculated HETP-values. The coefficients were measured on structured packing Mellapak250Y. A small axial mixing of phases on this type of packing enables the use of a plug flow model for both phases. Three distillation systems, methanol ethanol, ethanol-propanol and methanol-propanol, were use

Název v anglickém jazyce

Profile method? for the measurement of kLa and kVa in distillation column. Validation of ratebased distillation models using concentration profiles measured along the column

Popis výsledku anglicky

The "profile method" enables the determination of vapor- and liquid-side volumetric mass transfer coefficients kVa and kLa by comparing the concentration profiles measured in both phases in a distillation column with the simulated profiles. The method isbased on the fact that the shape of the concentration profiles along the column depend significantly on the distribution of the mass transfer resistance between the liquid and the vapor phases. This makes possible the measuring of kLa and kVa directly in the distillation columns, in the same manner is possible in absorption columns, and therefore to validate the distillation models more conclusively than by means of comparing the experimental and calculated HETP-values. The coefficients were measured on structured packing Mellapak250Y. A small axial mixing of phases on this type of packing enables the use of a plug flow model for both phases. Three distillation systems, methanol ethanol, ethanol-propanol and methanol-propanol, were use

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

2010

Kód důvěrnosti údajů

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

Název periodika

Ind.Eng.Chem., Res.

ISSN

0888-5885

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

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Kód UT WoS článku

000277041700039

EID výsledku v databázi Scopus

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