Isobaric and Isothermal Vapor-Liquid Equilibria for the Binary System of Water plus Formic Acid at 99.41 kPa, 388.15 K, and 398.15 K

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43902210" target="_blank" >RIV/60461373:22310/16:43902210 - isvavai.cz</a>

Výsledek na webu

<a href="http://pubs.acs.org/doi/abs/10.1021/acs.jced.6b00139" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/acs.jced.6b00139</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jced.6b00139" target="_blank" >10.1021/acs.jced.6b00139</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Isobaric and Isothermal Vapor-Liquid Equilibria for the Binary System of Water plus Formic Acid at 99.41 kPa, 388.15 K, and 398.15 K

Popis výsledku v původním jazyce

In the process of methyl formate hydrolysis, it is necessary to separate water from formic acid. Rectification is one of the suitable methods to achieve this. However, vapor liquid equilibrium data are essential for the rectification unit design, and these are either not available in the literature at all, or when available are significantly scattered. The water + formic acid binary system forms a maximum-boiling azeotrope, and its behavior is nonideal both in liquid and vapor phases. In this paper, we are presenting the vapor liquid equilibrium data for the above-specified binary system. The isobaric and isothermal data have been measured under atmospheric pressure and at the temperatures of 388.15 and 398.15 K. We have found, based on the value of the average absolute deviation, that the UNIQUAC-Hayden O'Connell combined model is the best fitting for the measured data plotting. On the basis of this combined model, we are able to estimate the azeotropic point composition at elevated pressure levels. In addition, our data can be reliably used in the future design of a rectification unit.

Název v anglickém jazyce

Isobaric and Isothermal Vapor-Liquid Equilibria for the Binary System of Water plus Formic Acid at 99.41 kPa, 388.15 K, and 398.15 K

Popis výsledku anglicky

In the process of methyl formate hydrolysis, it is necessary to separate water from formic acid. Rectification is one of the suitable methods to achieve this. However, vapor liquid equilibrium data are essential for the rectification unit design, and these are either not available in the literature at all, or when available are significantly scattered. The water + formic acid binary system forms a maximum-boiling azeotrope, and its behavior is nonideal both in liquid and vapor phases. In this paper, we are presenting the vapor liquid equilibrium data for the above-specified binary system. The isobaric and isothermal data have been measured under atmospheric pressure and at the temperatures of 388.15 and 398.15 K. We have found, based on the value of the average absolute deviation, that the UNIQUAC-Hayden O'Connell combined model is the best fitting for the measured data plotting. On the basis of this combined model, we are able to estimate the azeotropic point composition at elevated pressure levels. In addition, our data can be reliably used in the future design of a rectification unit.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Journal of Chemical Engineering Data

ISSN

0021-9568

e-ISSN

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Svazek periodika

61

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

3398-3405

Kód UT WoS článku

000385606900003

EID výsledku v databázi Scopus

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