Diffusion Coefficients for Hydrogen Sulfide, Carbon Dioxide, and Nitrous Oxide in Water over the Temperature Range 293-368 K

Tamimi, A.; Rinker, Edward B.; Sandall, Orville C.

doi:10.1021/je00014a031

Cited by 239 publications

(153 citation statements)

References 8 publications

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“…On the other hand if the Fick's first law of diffusion is applied to H 2 S gradient (Purdy et al, 2001), considering its molecular diffusion coefficient of 11 x 10 -5 cm -2 s -1 (Tamimi et al, 1994), BSR rate accounts for 22 μmol m -2 day -1 , that is close to the rate resulting by SO 4 gradient.…”

Section: And 4)mentioning

confidence: 86%

Geochemical and biochemical evidence of lake overturn and fish kill at Lake Averno, Italy

Caliro

Chiodini

Izzo

et al. 2008

Journal of Volcanology and Geothermal Research

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Section: And 4)mentioning

confidence: 86%

Geochemical and biochemical evidence of lake overturn and fish kill at Lake Averno, Italy

Caliro

Chiodini

Izzo

et al. 2008

Journal of Volcanology and Geothermal Research

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“…Centrifugal forces due to the curved walls generate secondary currents (Schlichting, 2000). Furthermore, the wind speed is not uniformly distributed throughout the whole facility due to the positions and type of the wind generators.…”

Section: Homogeneity Of the Wind Field In The Aeolotronmentioning

confidence: 99%

“…With advanced imaging devices, it was not only possible to measure transfer velocities, but also to provide a direct "insight" into the small-scale processes taking place at the ocean surface. Therefore, these imaging devices were used to study the L. Nagel et al: Scaling CFT heat transfer velocities to gas transfer velocities mechanisms determining the transfer of mass across the airsea interface such as Langmuir circulation (Melville et al, 1998), microscale wave breaking (Jessup et al, 1997;Zappa et al, 2001Zappa et al, , 2004, surface renewal processes (Zappa et al, 1998), and the surface velocity field (Garbe et al, 2003;Veron et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Comparative heat and gas exchange measurements in the Heidelberg Aeolotron, a large annular wind-wave tank

2015

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Abstract.A comparative study of simultaneous heat and gas exchange measurements was performed in the large annular Heidelberg Air-Sea Interaction Facility, the Aeolotron, under homogeneous water surface conditions. The use of two gas tracers, N 2 O and C 2 HF 5 , resulted not only in gas transfer velocities, but also in the measurement of the Schmidt number exponent n with a precision of ±0.025. The original controlled flux, or active thermographic, technique proposed by Jähne et al. (1989) was applied by heating a large patch at the water surface to measure heat transfer velocities. Heating a large patch, the active thermography technique is laterally homogeneous, and problems of lateral transport effects are avoided. Using the measured Schmidt number exponents, the ratio of the scaled heat transfer velocities to the measured gas transfer velocities is 1.046 ± 0.040, a good agreement within the limits of experimental uncertainties. This indicates the possibility to scale heat transfer velocities measured by active thermography to gas transfer velocities, provided that the Schmidt number exponent is known and that the heated patch is large enough to reach the thermal equilibrium.

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“…There is a significant body of relevant literature regarding the effect of pressure and temperature on the rate of CO 2 diffusion in water (Hirai et al 1997;Leaist 1987;Mazarei and Sandall 1980;Tan and Thorpe 1992). Tamimi et al (1994) studied the diffusivity of several gases, including CO 2 , into water at a temperature range of 20-95°C and at atmospheric pressure. Jähne et al (1987) measured the rate of CO 2 diffusion in both pure water and sea water using the modified Barrer method.…”

Section: Introductionmentioning

confidence: 99%

Diffusion of carbon dioxide in formation water as a result of CO2 enhanced oil recovery and CO2 sequestration

Zarghami

Boukadi

Al-Wahaibi

2016

J Petrol Explor Prod Technol

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Flooding carbon dioxide into oil reservoirs is a promising technique for improving the pressure of a reservoir when it is depleted through primary and secondary production. In the context of global warming, it is a viable method for geological storage of CO 2 emissions. Once CO 2 is injected into a reservoir, it is forced to come into partial contact with formation water. To estimate the rate of CO 2 transfer and the total amount of CO 2 dissolved in the formation water, correct estimation of CO 2 diffusivity is required. In this study, the rate of CO 2 diffusion in water was experimentally determined in a PVT cell using the pressure depletion method at reservoir conditions (temperature: 50-75°C and pressure: 17,450 kPa). As expected, the rate of CO 2 diffusion in water increases with increasing temperatures. In addition, the impact of salinity of the water on the rate of CO 2 diffusion was investigated. A significant decrease in the rate of CO 2 diffusion was found with increasing salinity. Subsequently, a diffusion model describing the experiments was developed to predict the behavior of CO 2 diffusivity under simulated conditions. Unique correlations between CO 2 diffusion coefficients and water at different temperatures and salinities were obtained using the results of modeling.

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Diffusion Coefficients for Hydrogen Sulfide, Carbon Dioxide, and Nitrous Oxide in Water over the Temperature Range 293-368 K

Cited by 239 publications

References 8 publications

Geochemical and biochemical evidence of lake overturn and fish kill at Lake Averno, Italy

Geochemical and biochemical evidence of lake overturn and fish kill at Lake Averno, Italy

Comparative heat and gas exchange measurements in the Heidelberg Aeolotron, a large annular wind-wave tank

Diffusion of carbon dioxide in formation water as a result of CO2 enhanced oil recovery and CO2 sequestration

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