Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart Planning, IMDC-SDSP 2020, Cyperspace, 28-30 June 2020

Research Article

Kinetics of carbon dioxide capture into aqueous potassium carbonate promoted by glutamic acid salt

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  • @INPROCEEDINGS{10.4108/eai.28-6-2020.2298517,
        author={Rana  Ahmed and Ahmed  Wiheeb and Sanaa  Saleh},
        title={Kinetics of carbon dioxide capture into aqueous potassium carbonate promoted by glutamic acid salt},
        proceedings={Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart Planning, IMDC-SDSP 2020, Cyperspace, 28-30 June 2020},
        publisher={EAI},
        proceedings_a={IMDC-SDSP},
        year={2020},
        month={9},
        keywords={kinetics co2 capture absorption potassium carbonate glutamic acid},
        doi={10.4108/eai.28-6-2020.2298517}
    }
    
  • Rana Ahmed
    Ahmed Wiheeb
    Sanaa Saleh
    Year: 2020
    Kinetics of carbon dioxide capture into aqueous potassium carbonate promoted by glutamic acid salt
    IMDC-SDSP
    EAI
    DOI: 10.4108/eai.28-6-2020.2298517
Rana Ahmed1,*, Ahmed Wiheeb2, Sanaa Saleh3
  • 1: Chemical Engineering Department, College of Engineering, Tikrit University, Tikrit, Sallahaddin, Iraq
  • 2: Chemical Engineering Department, College of Engineering, University of Diyala, Baqubah, Diyala, Iraq
  • 3: North Refinery Company, Ministry of Oil, Baiji, Sallahaddin, Iraq
*Contact email: eng.ranaesam1993@gmail.com

Abstract

In this research, potassium carbonate (K2CO3) solution promoted by glutamic acid salt were used for capturing carbon dioxide (CO2) from flue gas in a packed absorber column at room temperature and at atmospheric pressure. Effect of glutamic acid salt concentrations on the CO2 absorption rates into carbonate solutions and glutamic acid salt were investigated. The results showed that the reaction of CO2 with K2CO3 solution promoted by glutamic acid salt was second-order and the rate constant (k2) was calculated from the experiments. The reaction of CO2 with glutamic acid salt was described using zwitterionic mechanism. The overall reaction kinetic constant (kov) strongly increased with the increase of glutamic acid salt concentration based on the pseudo first-order regime.