Gas-phase mass-transfer characteristics of Mellapak 250Y structured packing under distillation conditions.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F14%3A43898045" target="_blank" >RIV/60461373:22340/14:43898045 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Gas-phase mass-transfer characteristics of Mellapak 250Y structured packing under distillation conditions.

Original language description

This paper refers on gas mass-transfer characteristics of several metal sheet Mellapak structured packings (M250Y, M350Y, M452Y, M500Y) under absorption conditions. These characteristics have been measured using standard absorption systems of SO2 chemisorption into the NaOH aqueous solution (kGa) and CO2 chemisorption into the NaOH aqueous solution (effective area a). Measurements were performed with four elements of the packing with diameter of 0.29 m and total height of 0.84 m. Gas-phase mass-transfer coefficients for all studied packings have been correlated by the dimensionless equation . The experimental values of kG are in the most cases significantly under-predicted by fundamental mass-transfer models, wetted-wall column correlations and by the model packages developed for structured packing. The exponent 0.622 of gas Reynolds criteria is lower than expected by the models starting from the imagination of the flow through the channel and corresponding experiments with wetted-wall columns. The revealed value of the exponent agrees better with those found for flow around submerged objects like spheres or through the bed consisting of random packing, suggesting that the wetted wall column is not a suitable experimental simplification for the study of structured packings.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GA13-01251S" target="_blank" >GA13-01251S: Experimental verification of rate-based distillation columns design based on mass/heat transfer coefficients measured directly in the columns</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Article name in the collection

DA2014 Proceedings

ISBN

978-3-89746-174-1

ISSN

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e-ISSN

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Number of pages

7

Pages from-to

466-472

Publisher name

Dechema

Place of publication

Frankfurt am Main

Event location

Friedrichshafen

Event date

Sep 14, 2014

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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