CO2 absorption/regeneration enhancement in DI water with suspended nanoparticles for energy conversion application

Jong Sung Lee, Jae Won Lee, Yong Tae Kang

    Research output: Contribution to journalArticlepeer-review

    91 Citations (Scopus)

    Abstract

    The integrated gasification combined cycle (IGCC) is getting much more attention due to the rich reserves of coal around the world. In general, the absorption rate of a physical method such as the IGCC system is weaker than that of a chemical method, but it needs much less energy during the regeneration process. In this study, the main objective is to estimate the performance enhancement for CO2 gas absorption and regeneration by using SiO2/DI water and Al2O3/DI water nanofluids. The key parameters are the concentrations of SiO2 and Al2O3 nanoparticles and the system pressure during the regeneration process. It is found that the maximum CO2 absorption and regeneration performance enhancements are 23.5% and 11.8% at 0.01vol% of SiO2 nanoparticles, respectively. However, in the case of Al2O3 nanoparticles, the CO2 absorption performance increases 23.5% at 0.01vol%, but the regeneration performance decreases 11.2% at 0.01vol%, respectively. The enhancement mechanisms for CO2 absorption and regeneration by nanoparticles are summarized and proposed in this study.

    Original languageEnglish
    Pages (from-to)119-129
    Number of pages11
    JournalApplied Energy
    Volume143
    DOIs
    Publication statusPublished - 2015 Apr 1

    Bibliographical note

    Funding Information:
    This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korea government ( MSIP ) (No. NRF-2010-0029120 ).

    Publisher Copyright:
    © 2015 Elsevier Ltd.

    Keywords

    • Absorption
    • AlO
    • CO
    • Nanoparticle
    • Regeneration
    • SiO

    ASJC Scopus subject areas

    • Building and Construction
    • General Energy
    • Mechanical Engineering
    • Management, Monitoring, Policy and Law

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