A simplified semi-empirical model for modeling of CO2 solubilities in aqueous MDEA and MEA solutions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU143876" target="_blank" >RIV/00216305:26210/22:PU143876 - isvavai.cz</a>
Result on the web
<a href="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0378381221004143" target="_blank" >https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0378381221004143</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.fluid.2021.113352" target="_blank" >10.1016/j.fluid.2021.113352</a>
Alternative languages
Result language
angličtina
Original language name
A simplified semi-empirical model for modeling of CO2 solubilities in aqueous MDEA and MEA solutions
Original language description
A simplified semi-empirical model was developed for modeling of carbon dioxide (CO2) solubility in aqueous solutions of methyldiethanolamine (MDEA) and monoethanolamine (MEA) with a temperature range from 283.15 K to 393.15 K, and alkanolamine molarity (1–5) mol/L. This model accounts for chemical equilibria in the liquid phase and physical equilibria between the liquid and vapor phases, which can calculate the vapor liquid equilibria (VLE) of MDEA+H2O+CO2 system and MEA+H2O+CO2 system. This paper proposes a Simplified Kent-Eisenberg Model (SKEM) to describe the chemical equilibria in amine – acid system, which is built with the conception of ion pairs meets the like-ion repulsion assumption and the local electroneutrality assumption. In the physical equilibria, the Henley coefficient was refitted using a new correlation, which was built with the combinations of sines and cosines. Adjustable parameters of the SKEM model, representing chemical equilibrium constant including activity coefficients, were determined by data regression with 187 sets of data of MDEA+H2O+CO2 system and MEA+H2O+CO2 system. The SKEM model has a good predictive ability, the Absolute Average Relative Deviations (AARD) of predicted results of SKEM model in MDEA+H2O+CO2 system and MEA+H2O+CO2 systems are 13.66% and 8.33%, respectively. © 2021 Elsevier B.V.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
FLUID PHASE EQUILIBRIA
ISSN
0378-3812
e-ISSN
1879-0224
Volume of the periodical
neuveden
Issue of the periodical within the volume
555
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
13
Pages from-to
113352-113352
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85121305081