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

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

Energy, 1997, vol. 22, issue 2, 363-367

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.

Date: 1997
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:22:y:1997:i:2:p:363-367

DOI: 10.1016/S0360-5442(96)00135-1

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