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Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study

A rate-based non-equilibrium model is developed for CO2 absorption with the mixture of piperazine and potassium carbonate solution. The model is based on the mass and heat transfer between the liquid and the gas phases on each packed column segment. The thermodynamic equilibrium assumption (physical...

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Main Authors: N.Borhani, Tohid, Babamohammadi, Shervan, Khallaghi, Navid, Zhang, Zhein
Format: Article
Published: Elsevier Science Ltd 2022
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/33761/
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spelling my.um.eprints.337612022-04-26T03:50:05Z http://eprints.um.edu.my/33761/ Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study N.Borhani, Tohid Babamohammadi, Shervan Khallaghi, Navid Zhang, Zhein TA Engineering (General). Civil engineering (General) A rate-based non-equilibrium model is developed for CO2 absorption with the mixture of piperazine and potassium carbonate solution. The model is based on the mass and heat transfer between the liquid and the gas phases on each packed column segment. The thermodynamic equilibrium assumption (physical equilibrium) is considered only at the gas-liquid interface and chemical equilibrium is assumed in the liquid phase bulk. The calculated mass transfer coefficient from available correlations is corrected by the enhancement factor to account for the chemical reactions in the system. The Extended-UNIQUAC model is used to calculate the non-idealities related to the liquid phase, and the Soave-Redlich-Kwong (SRK) equation of state is used for the gas phase calculations. The thermodynamic analysis is also performed in this study. The enhancement factor is used to represent the effect of chemical reactions of the piperazine promoted potassium carbonate solution, which has not been considered given the rigorous electrolyte thermodynamics in the absorber. The developed model showed good agreement with the experimental data and similar studies in the literature. Elsevier Science Ltd 2022-01-15 Article PeerReviewed N.Borhani, Tohid and Babamohammadi, Shervan and Khallaghi, Navid and Zhang, Zhein (2022) Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study. Fuel, 308. DOI https://doi.org/10.1016/j.fuel.2021.122033 <https://doi.org/10.1016/j.fuel.2021.122033>. 10.1016/j.fuel.2021.122033
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
N.Borhani, Tohid
Babamohammadi, Shervan
Khallaghi, Navid
Zhang, Zhein
Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study
description A rate-based non-equilibrium model is developed for CO2 absorption with the mixture of piperazine and potassium carbonate solution. The model is based on the mass and heat transfer between the liquid and the gas phases on each packed column segment. The thermodynamic equilibrium assumption (physical equilibrium) is considered only at the gas-liquid interface and chemical equilibrium is assumed in the liquid phase bulk. The calculated mass transfer coefficient from available correlations is corrected by the enhancement factor to account for the chemical reactions in the system. The Extended-UNIQUAC model is used to calculate the non-idealities related to the liquid phase, and the Soave-Redlich-Kwong (SRK) equation of state is used for the gas phase calculations. The thermodynamic analysis is also performed in this study. The enhancement factor is used to represent the effect of chemical reactions of the piperazine promoted potassium carbonate solution, which has not been considered given the rigorous electrolyte thermodynamics in the absorber. The developed model showed good agreement with the experimental data and similar studies in the literature.
format Article
author N.Borhani, Tohid
Babamohammadi, Shervan
Khallaghi, Navid
Zhang, Zhein
author_facet N.Borhani, Tohid
Babamohammadi, Shervan
Khallaghi, Navid
Zhang, Zhein
author_sort N.Borhani, Tohid
title Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study
title_short Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study
title_full Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study
title_fullStr Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study
title_full_unstemmed Mixture of piperazine and potassium carbonate to absorb CO2 in the packed column: Modelling study
title_sort mixture of piperazine and potassium carbonate to absorb co2 in the packed column: modelling study
publisher Elsevier Science Ltd
publishDate 2022
url http://eprints.um.edu.my/33761/
_version_ 1735409587945734144
score 13.211869

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