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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

  • Czech description

Classification

  • Type

    J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database

  • CEP classification

  • OECD FORD branch

    20704 - Energy and fuels

Result continuities

  • Project

  • 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

  • EID of the result in the Scopus database

    2-s2.0-85121305081