The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH System

The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH System

The vapor–liquid equilibrium (VLE) in chemical engineering is indispensable for the design of equilibrium separation processes such as distillation, absorption, extraction, and crystallization. VLE data were measured for H2O+CH3OH+NaI, H2O+CH3OH+KBr, and H2O+CH3OH+KI systems. By analyzing and summar...

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Main Authors: Xianzhen Xu, Na Zhang, Yu Zhou, Yan Wang, Zonghua Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-04-01
Series:Frontiers in Chemistry
Subjects:
water-methanol-salt
electrolyte solution
vapor–liquid equilibrium (VLE)
thermodynamic
modeling
Online Access:https://www.frontiersin.org/article/10.3389/fchem.2020.00192/full
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spelling doaj-246137d49aa041f1b76ca67af41860dc2020-11-25T02:34:38ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462020-04-01810.3389/fchem.2020.00192525657The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH SystemXianzhen Xu0Na Zhang1Yu Zhou2Yan Wang3Zonghua Wang4Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, ChinaDepartment of Avionics Engineering, Navel Aeronautical University Qingdao Branch, Qingdao, ChinaShandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, ChinaShandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, ChinaShandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, ChinaThe vapor–liquid equilibrium (VLE) in chemical engineering is indispensable for the design of equilibrium separation processes such as distillation, absorption, extraction, and crystallization. VLE data were measured for H2O+CH3OH+NaI, H2O+CH3OH+KBr, and H2O+CH3OH+KI systems. By analyzing and summarizing the results of H2O+Methanol+Alkali metal halide systems, the salt effects of NaI, KBr, and KI on the vapor–liquid equilibrium were obtained. Simultaneously, a model based on the NRTL equation (non-random two liquid) was proposed to correlate and calculate the VLE for the systems. In addition, the assumption of solvation based on hydration was introduced in this model. The proposed model can be successfully used to calculate the VLE for H2O+Methanol+Alkali metal halide systems.https://www.frontiersin.org/article/10.3389/fchem.2020.00192/fullwater-methanol-saltelectrolyte solutionvapor–liquid equilibrium (VLE)thermodynamicmodeling
collection DOAJ
language English
format Article
sources DOAJ
author Xianzhen Xu
Na Zhang
Yu Zhou
Yan Wang
Zonghua Wang
spellingShingle Xianzhen Xu
Na Zhang
Yu Zhou
Yan Wang
Zonghua Wang
The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH System
Frontiers in Chemistry
water-methanol-salt
electrolyte solution
vapor–liquid equilibrium (VLE)
thermodynamic
modeling
author_facet Xianzhen Xu
Na Zhang
Yu Zhou
Yan Wang
Zonghua Wang
author_sort Xianzhen Xu
title The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH System
title_short The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH System
title_full The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH System
title_fullStr The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH System
title_full_unstemmed The Effects of NaI, KBr, and KI Salts on the Vapor-Liquid Equilibrium of the H2O+CH3OH System
title_sort effects of nai, kbr, and ki salts on the vapor-liquid equilibrium of the h2o+ch3oh system
publisher Frontiers Media S.A.
series Frontiers in Chemistry
issn 2296-2646
publishDate 2020-04-01
description The vapor–liquid equilibrium (VLE) in chemical engineering is indispensable for the design of equilibrium separation processes such as distillation, absorption, extraction, and crystallization. VLE data were measured for H2O+CH3OH+NaI, H2O+CH3OH+KBr, and H2O+CH3OH+KI systems. By analyzing and summarizing the results of H2O+Methanol+Alkali metal halide systems, the salt effects of NaI, KBr, and KI on the vapor–liquid equilibrium were obtained. Simultaneously, a model based on the NRTL equation (non-random two liquid) was proposed to correlate and calculate the VLE for the systems. In addition, the assumption of solvation based on hydration was introduced in this model. The proposed model can be successfully used to calculate the VLE for H2O+Methanol+Alkali metal halide systems.
topic water-methanol-salt
electrolyte solution
vapor–liquid equilibrium (VLE)
thermodynamic
modeling
url https://www.frontiersin.org/article/10.3389/fchem.2020.00192/full
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