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Phase Equilibria Calculation of CO2-H2O System at Given Volume, Temperature, and Moles in CO2 Sequestration

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00235772" target="_blank" >RIV/68407700:21340/15:00235772 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Phase Equilibria Calculation of CO2-H2O System at Given Volume, Temperature, and Moles in CO2 Sequestration

  • Original language description

    Abstract?The paper deals with the investigation of multiphase equilibrium of CO2-H2O system at constant volume, temperature and moles (the so-called V T-flash), which is motivated by topical problem of CO2 sequestration. Studying CO2-H2O mixture under natural geological conditions (pressures typically below 50 MPa and temperatures typically 298 ? 383 K) for different system composition, two-phase and three-phase states were observed. Recently, we have developed a fast and robust algorithm for constant-volume two-phase split calculation, which is based on the direct minimization of the total Helmholtz free energy of the mixture with respect to the mole- and volume-balance constraints. The algorithm uses modified Newton-Raphson minimization method. To initialize the algorithm, an initial guess is constructed using the results of constant-volume stability testing. In this work, we extend the results for CO2-H2O system and propose a fast and robust algorithm for three-phase equilibrium com

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BJ - Thermodynamics

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2015

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    IAENG International Journal of Applied Mathematics

  • ISSN

    1992-9978

  • e-ISSN

  • Volume of the periodical

    45

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    JP - JAPAN

  • Number of pages

    10

  • Pages from-to

    183-192

  • UT code for WoS article

  • EID of the result in the Scopus database

    2-s2.0-84938906705