Mass transfer under distillation of positive, neutral, and negative system in the I.D. 0.3 m column packed with structured packing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F23%3A43926782" target="_blank" >RIV/60461373:22340/23:43926782 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0263876223003696?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263876223003696?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cherd.2023.06.007" target="_blank" >10.1016/j.cherd.2023.06.007</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mass transfer under distillation of positive, neutral, and negative system in the I.D. 0.3 m column packed with structured packing

Popis výsledku v původním jazyce

The distillation of three binary test systems differing in the surface tension gradient along the column, namely: cyclohexane/n-heptane (negative), cyclohexane/toluene (neutral), n-hexane/cyclohexane (positive), has been performed under total reflux in the i.d. 0.3 m distillation column packed with MellapakPlus 452. Y structured packing. Although all constituents are C6 – C7 hydrocarbons with close physical properties in the gas phase, the resulting HETP differ by up to 20 %. Further analysis suggests that system negativity causes the approx. 30 % decrease of the effective interfacial area with respect to positive and neutral systems, which behave comparably. Indeed, observation of the distillation on the inclined plate in the IR spectra shows breakage of the negative system liquid films into rivulets, supporting the result.

Název v anglickém jazyce

Mass transfer under distillation of positive, neutral, and negative system in the I.D. 0.3 m column packed with structured packing

Popis výsledku anglicky

The distillation of three binary test systems differing in the surface tension gradient along the column, namely: cyclohexane/n-heptane (negative), cyclohexane/toluene (neutral), n-hexane/cyclohexane (positive), has been performed under total reflux in the i.d. 0.3 m distillation column packed with MellapakPlus 452. Y structured packing. Although all constituents are C6 – C7 hydrocarbons with close physical properties in the gas phase, the resulting HETP differ by up to 20 %. Further analysis suggests that system negativity causes the approx. 30 % decrease of the effective interfacial area with respect to positive and neutral systems, which behave comparably. Indeed, observation of the distillation on the inclined plate in the IR spectra shows breakage of the negative system liquid films into rivulets, supporting the result.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

<a href="/cs/project/GA20-20335S" target="_blank" >GA20-20335S: Studium fázového rozhraní kapalina-plyn pomocí termografie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Research and Design

ISSN

0263-8762

e-ISSN

—

Svazek periodika

196

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

52-60

Kód UT WoS článku

001030845000001

EID výsledku v databázi Scopus

2-s2.0-85163858757