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ATR-FTIR Model Development and Verification for Qualitative and Quantitative Analysis in MDEA–H 2 O–MEG/TEG–CO 2 Blends

Author

Listed:
  • Usman Shoukat

    (Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway)

  • Eva Baumeister

    (Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway)

  • Hanna K. Knuutila

    (Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway)

Abstract

A Fourier transform infrared (FTIR) spectroscopy method was developed to identify and quantify various components in an amine-based combined acid gas and water removal process. In this work, an attenuated total reflectance (ATR) probe was used. A partial least-squares (PLS) regression model was also developed using up to four components (methyl diethanolamine (MDEA)-H 2 O-CO 2 -ethylene glycol/triethylene glycol (MEG/TEG)), and it was successfully validated. The model was applied on thermally degraded CO 2 -loaded MDEA blends to predict the weight percentages of MDEA, H 2 O, CO 2 , and MEG or TEG to test the performance spectrum. The results confirmed that FTIR could be used as a simpler, quicker and reliable tool to identify and quantify various compounds such as MDEA, MEG/TEG, H 2 O and CO 2 simultaneously in a combined acid gas and water removal process.

Suggested Citation

  • Usman Shoukat & Eva Baumeister & Hanna K. Knuutila, 2019. "ATR-FTIR Model Development and Verification for Qualitative and Quantitative Analysis in MDEA–H 2 O–MEG/TEG–CO 2 Blends," Energies, MDPI, vol. 12(17), pages 1-15, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:17:p:3285-:d:261150
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    Cited by:

    1. Usman Shoukat & Hanna Katariina Knuutila, 2020. "Effect of Various Parameters on the Thermal Stability and Corrosion of CO 2 -Loaded Tertiary Amine Blends," Energies, MDPI, vol. 13(10), pages 1-17, May.

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