Thermodynamic modelling of CO 2 absorption into aqueous solutions of 2-diethylaminoethanol, piperazine, and blended diethylaminoethanol with piperazine

Morteza Afkhamipour, Masoud Mofarahi, Peyman Pakzad, Chang Ha Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, the Deshmukh–Mather (D-M) model was used to evaluate the equilibrium behaviour of CO 2 + diethylaminoethanol (DEAE) + H 2 O, CO 2 + piperazine (PZ) + H 2 O, and CO 2 + DEAE + PZ + H 2 O systems. The binary interaction parameters of the model for mentioned systems were obtained by using experimental solubility data from the literature. The ability of the model to predict the concentration profiles for all chemical species present in the liquid phase at different concentrations of amine solution was tested. The excess properties such as Gibbs energy, enthalpy, and heat capacity as a function of the CO 2 loading of the amine were obtained. The solution pH and activity coefficients were also investigated. The results of thermodynamic modelling indicated that the D-M model predicted the experimental data with average absolute relative deviations (AARDs) of 7.15%, 11.3%, and 8.65%, respectively, for the CO 2 + DEAE + PZ + H 2 O, CO 2 + PZ + H 2 O, and CO 2 + DEAE + H 2 O systems. The model applied in this study can be used for process simulation based on the rate-based or equilibrium-stage models of CO 2 absorption with DEAE + PZ solutions.

Original languageEnglish
Pages (from-to)26-35
Number of pages10
JournalFluid Phase Equilibria
Volume493
DOIs
Publication statusPublished - 2019 Aug 1

Fingerprint

Carbon Monoxide
Thermodynamics
aqueous solutions
thermodynamics
Amines
amines
Activity coefficients
Gibbs free energy
Specific heat
piperazine
2-diethylaminoethanol
Enthalpy
liquid phases
solubility
Solubility
enthalpy
specific heat
deviation
Liquids
coefficients

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

@article{e521e153b9744889a6471590de7949d0,
title = "Thermodynamic modelling of CO 2 absorption into aqueous solutions of 2-diethylaminoethanol, piperazine, and blended diethylaminoethanol with piperazine",
abstract = "In this study, the Deshmukh–Mather (D-M) model was used to evaluate the equilibrium behaviour of CO 2 + diethylaminoethanol (DEAE) + H 2 O, CO 2 + piperazine (PZ) + H 2 O, and CO 2 + DEAE + PZ + H 2 O systems. The binary interaction parameters of the model for mentioned systems were obtained by using experimental solubility data from the literature. The ability of the model to predict the concentration profiles for all chemical species present in the liquid phase at different concentrations of amine solution was tested. The excess properties such as Gibbs energy, enthalpy, and heat capacity as a function of the CO 2 loading of the amine were obtained. The solution pH and activity coefficients were also investigated. The results of thermodynamic modelling indicated that the D-M model predicted the experimental data with average absolute relative deviations (AARDs) of 7.15{\%}, 11.3{\%}, and 8.65{\%}, respectively, for the CO 2 + DEAE + PZ + H 2 O, CO 2 + PZ + H 2 O, and CO 2 + DEAE + H 2 O systems. The model applied in this study can be used for process simulation based on the rate-based or equilibrium-stage models of CO 2 absorption with DEAE + PZ solutions.",
author = "Morteza Afkhamipour and Masoud Mofarahi and Peyman Pakzad and Lee, {Chang Ha}",
year = "2019",
month = "8",
day = "1",
doi = "10.1016/j.fluid.2019.02.008",
language = "English",
volume = "493",
pages = "26--35",
journal = "Fluid Phase Equilibria",
issn = "0378-3812",
publisher = "Elsevier",

}

Thermodynamic modelling of CO 2 absorption into aqueous solutions of 2-diethylaminoethanol, piperazine, and blended diethylaminoethanol with piperazine . / Afkhamipour, Morteza; Mofarahi, Masoud; Pakzad, Peyman; Lee, Chang Ha.

In: Fluid Phase Equilibria, Vol. 493, 01.08.2019, p. 26-35.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Thermodynamic modelling of CO 2 absorption into aqueous solutions of 2-diethylaminoethanol, piperazine, and blended diethylaminoethanol with piperazine

AU - Afkhamipour, Morteza

AU - Mofarahi, Masoud

AU - Pakzad, Peyman

AU - Lee, Chang Ha

PY - 2019/8/1

Y1 - 2019/8/1

N2 - In this study, the Deshmukh–Mather (D-M) model was used to evaluate the equilibrium behaviour of CO 2 + diethylaminoethanol (DEAE) + H 2 O, CO 2 + piperazine (PZ) + H 2 O, and CO 2 + DEAE + PZ + H 2 O systems. The binary interaction parameters of the model for mentioned systems were obtained by using experimental solubility data from the literature. The ability of the model to predict the concentration profiles for all chemical species present in the liquid phase at different concentrations of amine solution was tested. The excess properties such as Gibbs energy, enthalpy, and heat capacity as a function of the CO 2 loading of the amine were obtained. The solution pH and activity coefficients were also investigated. The results of thermodynamic modelling indicated that the D-M model predicted the experimental data with average absolute relative deviations (AARDs) of 7.15%, 11.3%, and 8.65%, respectively, for the CO 2 + DEAE + PZ + H 2 O, CO 2 + PZ + H 2 O, and CO 2 + DEAE + H 2 O systems. The model applied in this study can be used for process simulation based on the rate-based or equilibrium-stage models of CO 2 absorption with DEAE + PZ solutions.

AB - In this study, the Deshmukh–Mather (D-M) model was used to evaluate the equilibrium behaviour of CO 2 + diethylaminoethanol (DEAE) + H 2 O, CO 2 + piperazine (PZ) + H 2 O, and CO 2 + DEAE + PZ + H 2 O systems. The binary interaction parameters of the model for mentioned systems were obtained by using experimental solubility data from the literature. The ability of the model to predict the concentration profiles for all chemical species present in the liquid phase at different concentrations of amine solution was tested. The excess properties such as Gibbs energy, enthalpy, and heat capacity as a function of the CO 2 loading of the amine were obtained. The solution pH and activity coefficients were also investigated. The results of thermodynamic modelling indicated that the D-M model predicted the experimental data with average absolute relative deviations (AARDs) of 7.15%, 11.3%, and 8.65%, respectively, for the CO 2 + DEAE + PZ + H 2 O, CO 2 + PZ + H 2 O, and CO 2 + DEAE + H 2 O systems. The model applied in this study can be used for process simulation based on the rate-based or equilibrium-stage models of CO 2 absorption with DEAE + PZ solutions.

UR - http://www.scopus.com/inward/record.url?scp=85064171972&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064171972&partnerID=8YFLogxK

U2 - 10.1016/j.fluid.2019.02.008

DO - 10.1016/j.fluid.2019.02.008

M3 - Article

AN - SCOPUS:85064171972

VL - 493

SP - 26

EP - 35

JO - Fluid Phase Equilibria

JF - Fluid Phase Equilibria

SN - 0378-3812

ER -