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Modeling Phase Equilibria for the Glycine-NH4Cl-Methanol Water System and Its Application for the Industrial Monochloroacetic Acid Process
Zeng, Yan1; Li, Zhibao1; Asselin, Edouard2
2015-04-08
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume54Issue:13Pages:3488-3497
Abstract

As a continuation of our previous study, this work focuses on the determination and modeling of phase equilibria for the mixed-solvent electrolyte system containing glycine, ammonium chloride (NH4Cl), methanol, and water. This electrolyte is used in the monochloroacetic acid (MCA) process for glycine production. The solubilities for the NH4Cl-methanol-water and glycine-NH4Cl-methanol-water systems were determined from 283.15 to 323.15 K. The MSE model embedded in the OLI platform was modified by regressing experimental data through adjustment of the UNIQUAC and the middle-range interaction parameters. With the new model parameters, solubilities in the quaternary system were predicted with excellent agreement. The average absolute deviations between the prediction and the experimental solubility are 3.46 and 0.54% for glycine and NH4Cl, respectively. OLI Stream Analyzer 9.1 was used with this new MSE model to investigate the effect of the methanol composition and temperature on the yield of glycine crystallization in the MCA process. It was found that a methanol mole fraction of 0.65-0.70 at ambient temperatures was optimal for enhancing the theoretical yield of glycine to 96.5% while minimizing the methanol consumption.

KeywordSolvent Electrolyte Systems Aqueous-alkanol Solutions Partial Molal Properties Excess Gibbs Energy Alpha-amino-acids Transport-properties High-pressures Activity-coefficients Uniquac Model Salt Systems
SubtypeArticle
Subject AreaEngineering
WOS HeadingsScience & Technology ; Technology
DOI10.1021/acs.iecr.5b00320
Indexed BySCI
Language英语
WOS KeywordSolvent Electrolyte Systems ; Aqueous-alkanol Solutions ; Partial Molal Properties ; Excess Gibbs Energy ; Alpha-amino-acids ; Transport-properties ; High-pressures ; Activity-coefficients ; Uniquac Model ; Salt Systems
Funding ProjectNational Natural Science Foundation of China [21476235, U1407112] ; National Basic Research Development Program of China (973 Program) [2013CB632605]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000352751900025
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13782
Collection研究所(批量导入)
Corresponding AuthorLi, Zhibao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ British Columbia, Dept Mat Engn, Vancouver, BC V6T 1Z4, Canada
Recommended Citation
GB/T 7714
Zeng, Yan,Li, Zhibao,Asselin, Edouard. Modeling Phase Equilibria for the Glycine-NH4Cl-Methanol Water System and Its Application for the Industrial Monochloroacetic Acid Process[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2015,54(13):3488-3497.
APA Zeng, Yan,Li, Zhibao,&Asselin, Edouard.(2015).Modeling Phase Equilibria for the Glycine-NH4Cl-Methanol Water System and Its Application for the Industrial Monochloroacetic Acid Process.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,54(13),3488-3497.
MLA Zeng, Yan,et al."Modeling Phase Equilibria for the Glycine-NH4Cl-Methanol Water System and Its Application for the Industrial Monochloroacetic Acid Process".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 54.13(2015):3488-3497.
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