Model of Vapor-Liquid Equilibria for Aqueous Acid Gas-Alkanolamine Systems. 2. Representation of H2S and CO2 Solubility in Aqueous MDEA and CO2 Solubility in Aqueous Mixtures of MDEA with MEA or DEA

David M. Austgen; Gary T. Rochelle; Chau Chyun Chen

doi:10.1021/ie00051a016

Model of Vapor-Liquid Equilibria for Aqueous Acid Gas-Alkanolamine Systems. 2. Representation of H₂S and CO₂ Solubility in Aqueous MDEA and CO₂ Solubility in Aqueous Mixtures of MDEA with MEA or DEA

David M. Austgen, Gary T. Rochelle, Chau Chyun Chen

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

297 Scopus citations

Abstract

A physicochemical model developed in earlier work for representing H₂S and CO₂ solubility in aqueous solutions of monoethanolamine (MEA) and diethanolamine (DEA) was extended to include the mixtures of methyldiethanolamine (MDEA) with MEA or DEA. The framework of the model is based upon both liquid-phase chemical equilibria and vapor-liquid (phase) equilibria. Activity coefficients are represented with the electrolyte-NRTL equation treating both long-range electrostatic interactions and short-range binary interactions. Adjustable binary interaction parameters of the model were fitted on binary and ternary system MDEA data reported in the literature. The solubility of CO₂ in aqueous mixtures of MDEA with MEA or DEA was measured at 40 and 80 °C over a wide range of CO₂ partial pressures. Representation of the data by the model is good, especially at low to moderate acid gas loadings.

Original language	English
Pages (from-to)	543-555
Number of pages	13
Journal	Industrial and Engineering Chemistry Research
Volume	30
Issue number	3
DOIs	https://doi.org/10.1021/ie00051a016
State	Published - Mar 1 1991

Access to Document

10.1021/ie00051a016

Cite this

@article{bd55730cbc774e1993cfa54eac4457e3,

title = "Model of Vapor-Liquid Equilibria for Aqueous Acid Gas-Alkanolamine Systems. 2. Representation of H2S and CO2 Solubility in Aqueous MDEA and CO2 Solubility in Aqueous Mixtures of MDEA with MEA or DEA",

abstract = "A physicochemical model developed in earlier work for representing H2S and CO2 solubility in aqueous solutions of monoethanolamine (MEA) and diethanolamine (DEA) was extended to include the mixtures of methyldiethanolamine (MDEA) with MEA or DEA. The framework of the model is based upon both liquid-phase chemical equilibria and vapor-liquid (phase) equilibria. Activity coefficients are represented with the electrolyte-NRTL equation treating both long-range electrostatic interactions and short-range binary interactions. Adjustable binary interaction parameters of the model were fitted on binary and ternary system MDEA data reported in the literature. The solubility of CO2 in aqueous mixtures of MDEA with MEA or DEA was measured at 40 and 80 °C over a wide range of CO2 partial pressures. Representation of the data by the model is good, especially at low to moderate acid gas loadings.",

author = "Austgen, {David M.} and Rochelle, {Gary T.} and Chen, {Chau Chyun}",

year = "1991",

month = mar,

day = "1",

doi = "10.1021/ie00051a016",

language = "English",

volume = "30",

pages = "543--555",

journal = "Industrial and Engineering Chemistry Research",

issn = "0888-5885",

number = "3",

}

Model of Vapor-Liquid Equilibria for Aqueous Acid Gas-Alkanolamine Systems. 2. Representation of H₂S and CO₂ Solubility in Aqueous MDEA and CO₂ Solubility in Aqueous Mixtures of MDEA with MEA or DEA. / Austgen, David M.; Rochelle, Gary T.; Chen, Chau Chyun.
In: Industrial and Engineering Chemistry Research, Vol. 30, No. 3, 01.03.1991, p. 543-555.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Model of Vapor-Liquid Equilibria for Aqueous Acid Gas-Alkanolamine Systems. 2. Representation of H2S and CO2 Solubility in Aqueous MDEA and CO2 Solubility in Aqueous Mixtures of MDEA with MEA or DEA

AU - Austgen, David M.

AU - Rochelle, Gary T.

AU - Chen, Chau Chyun

PY - 1991/3/1

Y1 - 1991/3/1

N2 - A physicochemical model developed in earlier work for representing H2S and CO2 solubility in aqueous solutions of monoethanolamine (MEA) and diethanolamine (DEA) was extended to include the mixtures of methyldiethanolamine (MDEA) with MEA or DEA. The framework of the model is based upon both liquid-phase chemical equilibria and vapor-liquid (phase) equilibria. Activity coefficients are represented with the electrolyte-NRTL equation treating both long-range electrostatic interactions and short-range binary interactions. Adjustable binary interaction parameters of the model were fitted on binary and ternary system MDEA data reported in the literature. The solubility of CO2 in aqueous mixtures of MDEA with MEA or DEA was measured at 40 and 80 °C over a wide range of CO2 partial pressures. Representation of the data by the model is good, especially at low to moderate acid gas loadings.

AB - A physicochemical model developed in earlier work for representing H2S and CO2 solubility in aqueous solutions of monoethanolamine (MEA) and diethanolamine (DEA) was extended to include the mixtures of methyldiethanolamine (MDEA) with MEA or DEA. The framework of the model is based upon both liquid-phase chemical equilibria and vapor-liquid (phase) equilibria. Activity coefficients are represented with the electrolyte-NRTL equation treating both long-range electrostatic interactions and short-range binary interactions. Adjustable binary interaction parameters of the model were fitted on binary and ternary system MDEA data reported in the literature. The solubility of CO2 in aqueous mixtures of MDEA with MEA or DEA was measured at 40 and 80 °C over a wide range of CO2 partial pressures. Representation of the data by the model is good, especially at low to moderate acid gas loadings.

UR - http://www.scopus.com/inward/record.url?scp=0026123543&partnerID=8YFLogxK

U2 - 10.1021/ie00051a016

DO - 10.1021/ie00051a016

M3 - Article

AN - SCOPUS:0026123543

SN - 0888-5885

VL - 30

SP - 543

EP - 555

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 3

ER -

Model of Vapor-Liquid Equilibria for Aqueous Acid Gas-Alkanolamine Systems. 2. Representation of H₂S and CO₂ Solubility in Aqueous MDEA and CO₂ Solubility in Aqueous Mixtures of MDEA with MEA or DEA

Abstract

Access to Document

Other files and links

Fingerprint

Cite this