Experimental Evidence for Double Quaternary Azeotropy’s Existence

The phase equilibrium in an acetonitrile + water + cyclohexene + chloroform system was studied at 101.3 kPa. A prediction regarding the internal structure of the composition tetrahedron (presence/absence of one/two internal singular points) was made using thermodynamic modeling in AspenPlus V.10.0....

Descripción completa

Detalles Bibliográficos
Autores principales: Frolkova, Anastasia, Zhuchkov, Valeriy, Frolkova, Alla
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10377813/
https://www.ncbi.nlm.nih.gov/pubmed/37509927
http://dx.doi.org/10.3390/e25070980
_version_ 1785079610129514496
author Frolkova, Anastasia
Zhuchkov, Valeriy
Frolkova, Alla
author_facet Frolkova, Anastasia
Zhuchkov, Valeriy
Frolkova, Alla
author_sort Frolkova, Anastasia
collection PubMed
description The phase equilibrium in an acetonitrile + water + cyclohexene + chloroform system was studied at 101.3 kPa. A prediction regarding the internal structure of the composition tetrahedron (presence/absence of one/two internal singular points) was made using thermodynamic modeling in AspenPlus V.10.0. The existence of two internal quaternary azeotropes (of node type with a minimum boiling point and of saddle type) was confirmed as a result of a full-scale experiment. Thermodynamic-topological analysis of the structure of phase equilibrium diagrams was carried out to confirm the correctness of the diagram construction.
format Online
Article
Text
id pubmed-10377813
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-103778132023-07-29 Experimental Evidence for Double Quaternary Azeotropy’s Existence Frolkova, Anastasia Zhuchkov, Valeriy Frolkova, Alla Entropy (Basel) Article The phase equilibrium in an acetonitrile + water + cyclohexene + chloroform system was studied at 101.3 kPa. A prediction regarding the internal structure of the composition tetrahedron (presence/absence of one/two internal singular points) was made using thermodynamic modeling in AspenPlus V.10.0. The existence of two internal quaternary azeotropes (of node type with a minimum boiling point and of saddle type) was confirmed as a result of a full-scale experiment. Thermodynamic-topological analysis of the structure of phase equilibrium diagrams was carried out to confirm the correctness of the diagram construction. MDPI 2023-06-26 /pmc/articles/PMC10377813/ /pubmed/37509927 http://dx.doi.org/10.3390/e25070980 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Frolkova, Anastasia
Zhuchkov, Valeriy
Frolkova, Alla
Experimental Evidence for Double Quaternary Azeotropy’s Existence
title Experimental Evidence for Double Quaternary Azeotropy’s Existence
title_full Experimental Evidence for Double Quaternary Azeotropy’s Existence
title_fullStr Experimental Evidence for Double Quaternary Azeotropy’s Existence
title_full_unstemmed Experimental Evidence for Double Quaternary Azeotropy’s Existence
title_short Experimental Evidence for Double Quaternary Azeotropy’s Existence
title_sort experimental evidence for double quaternary azeotropy’s existence
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10377813/
https://www.ncbi.nlm.nih.gov/pubmed/37509927
http://dx.doi.org/10.3390/e25070980
work_keys_str_mv AT frolkovaanastasia experimentalevidencefordoublequaternaryazeotropysexistence
AT zhuchkovvaleriy experimentalevidencefordoublequaternaryazeotropysexistence
AT frolkovaalla experimentalevidencefordoublequaternaryazeotropysexistence

Ejemplares similares