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Measurement of CO2 diffusion coefficient and application of LIF in pressurized water

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  • Hirai, S.
  • Okazaki, K.
  • Yazawa, H.
  • Ito, H.
  • Tabe, Y.
  • Hijikata, K.

Abstract

This paper deals with estimation of the diffusion coefficient in an H2O CO2 system under high pressure and the use of laser-induced fluorescence (LIF) for measuring CO2 dissolution. A liquid CO2 droplet without CO2 clathrate was placed in the flow where the velocity profile is uniform. The diffusion coefficient is estimated by measuring the liquid CO2 droplet-dissolution rate and using the empirical mass transfer coefficient. The measured diffusion coefficient agrees well with the Wilke-Chang equation at pressures of 29.4 and 39.2 MPa. We have used LIF for measurement of the large non-uniform, two-dimensional pH distribution induced by CO2 dissolution. A sheet laser beam was provided by a YAG laser and the two-dimensional LIF intensity was detected by an image-intensified CCD diode-array camera.

Suggested Citation

  • Hirai, S. & Okazaki, K. & Yazawa, H. & Ito, H. & Tabe, Y. & Hijikata, K., 1997. "Measurement of CO2 diffusion coefficient and application of LIF in pressurized water," Energy, Elsevier, vol. 22(2), pages 363-367.
    • Handle: RePEc:eee:energy:v:22:y:1997:i:2:p:363-367
    DOI: 10.1016/S0360-5442(96)00135-1
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    Cited by:

    1. Zerong Li & Lei Yuan & Guodong Sun & Junchen Lv & Yi Zhang, 2021. "Experimental Determination of CO 2 Diffusion Coefficient in a Brine-Saturated Core Simulating Reservoir Condition," Energies, MDPI, vol. 14(3), pages 1-12, January.

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