Modeling and measurement of CO2 solubility in salty aqueous solutions and application in the Erdos Basin

Wang, Lu; Zhang, Shen; Hu, Lisha; Yu, Qingchun

doi:10.1016/j.fluid.2014.06.016

Cited by 20 publications

(15 citation statements)

References 55 publications

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“…In reality, because of the enhanced salting-out effect, the solubility reduces as the salinity rises (the salting-out effect is discussed in detail in the next part of the results). Similar results can be observed in the previous studies in which different solubility measurement methods (such as depressurization) were used to measure CO 2 solubility in brines which were significantly more saline than the brine used in this study [37,45].…”

Section: Effects Of Salinity On Co 2 Solubilitysupporting

confidence: 90%

“…CO 2 solubility in NaCl is 1.421 mol kg −1 at 10.33 MPa and 298 K, whereas it is 1.037 mol kg −1 , 0.877 mol kg −1 and 0.788 mol kg −1 at the same pressure and 353 K, 353 K and 373 K, respectively. In other words, there is a decrease in solubility of 27%, 38% and 44.54% as the temperature rises to 333 K, 353 K and 373 K from the initial value of 298 K. Previous researchers have also reported a decrease in the solubility with the increase in the temperature [12,44,45]. Le Chatelier's law could explain the reduction in solubility at higher temperatures.…”

Section: Impacts Of Pressure and Temperature On The Solubilitymentioning

confidence: 89%

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Measurement of Solubility of CO2 in NaCl, CaCl2, MgCl2 and MgCl2 + CaCl2 Brines at Temperatures from 298 to 373 K and Pressures up to 20 MPa Using the Potentiometric Titration Method

et al. 2021

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Understanding the carbon dioxide (CO2) solubility in formation brines is of great importance to several industrial applications, including CO2 sequestration and some CO2 capture technologies, as well as CO2-based enhanced hydrocarbon recovery methods. Despite years of study, there are few literature data on CO2 solubility for the low salinity range. Thus, in this study, the solubility of CO2 in distilled water and aqueous ionic solutions of NaCl, MgCl2, CaCl2 and MgCl2 + CaCl2 were obtained in a low salinity range (0–15,000 ppm) at temperatures from 298–373 K and pressures up to 20 MPa using an accurate and unconventional method called potentiometric titration. An experimental data set of 553 data points was collected using this method. The results of the experiments demonstrate that increasing pressure increases the solubility of CO2 in various brines, whereas increasing temperature and salinity reduces the solubility. The role of different ions in changing the solubility is elaborated through a detailed discussion on the salting-out effect of different ionic solutions. To verify the experimental results of this research, the solubility points obtained by the potentiometric titration method were compared to some of the well-established experimental and analytical data from the literature and a very good agreement with those was obtained.

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Section: Effects Of Salinity On Co 2 Solubilitysupporting

confidence: 90%

Section: Impacts Of Pressure and Temperature On The Solubilitymentioning

confidence: 89%

Measurement of Solubility of CO2 in NaCl, CaCl2, MgCl2 and MgCl2 + CaCl2 Brines at Temperatures from 298 to 373 K and Pressures up to 20 MPa Using the Potentiometric Titration Method

et al. 2021

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“…These values of uncertainties are in line with those reported in the previous researches on the solubility of CO 2 various brines using different measurement techniques such as the depressurization method. 28,30,32 It can be observed from both Tables 2 and 3 that an increase in the salinity of aqueous solution decreases K e ; therefore more salting-out is expected. By comparing the values of points with similar pressure and salinity, one can conclude that increased temperature raises the salting-out effect.…”

Section: Effects Of Pressure and Temperature The Solubility Of Co 2 mentioning

confidence: 96%

Measurement of CO₂Solubility in NaCl Brine Solutions at Different Temperatures and Pressures Using the Potentiometric Titration Method

et al. 2015

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The solubility of CO 2 in brine is one of the trapping mechanisms by which the CO 2 is sequestrated in aquifers. In this research, an unconventional method, called the potentiometric titration, was used to obtain the solubility of CO 2 in distilled water and NaCl brine. The solubility data for the low salinity range are scarce in the literature. Thus, in this research, the CO 2 solubility was obtained in NaCl brines of low salinity (0−15 000 ppm) at temperatures between 60°C and 100°C and pressures up to 25 MPa. Moreover, the salting-out effect was estimated using the Setchenov's constant as a measure of reduction in solubility when salt is added to the solution. The solubility points obtained by the potentiometric titration method demonstrated very good consistency with those obtained by the previous methods.

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“…Munkejord et al [126] additionally reviewed the data situation for selected properties. Succeeding papers analysed the solubility of CO 2 , such as Foltran et al [127] (d = 162) and Wang et al [128] (d = 153); explored special CO 2 -rich mixtures, such as Nazeri et al [129] (d = 133) and Ke et al [130] (d = 120); worked out the behaviour under special temperature levels and pressures, such as Nazeri et al [131] (d = 138) and Westman et al [132] (d = 123); or explored special EoS, such as Aavatsmark et al [133] (d = 126) and Ibrahim et al [134] (d = 124).…”

Section: Cluster C5 (Pink 255 Nodes 6%)-the Chemistry Of Capture Anmentioning

confidence: 99%

Scrutinising the Gap between the Expected and Actual Deployment of Carbon Capture and Storage—A Bibliometric Analysis

Viebahn

Chappin

2018

Energies

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For many years, carbon capture and storage (CCS) has been discussed as a technology that may make a significant contribution to achieving major reductions in greenhouse gas emissions. At present, however, only two large-scale power plants capture a total of 2.4 Mt CO 2 /a. Several reasons are identified for this mismatch between expectations and realised deployment. Applying bibliographic coupling, the research front of CCS, understood to be published peer-reviewed papers, is explored to scrutinise whether the current research is sufficient to meet these problems. The analysis reveals that research is dominated by technical research (69%). Only 31% of papers address non-technical issues, particularly exploring public perception, policy, and regulation, providing a broader view on CCS implementation on the regional or national level, or using assessment frameworks. This shows that the research is advancing and attempting to meet the outlined problems, which are mainly non-technology related. In addition to strengthening this research, the proportion of papers that adopt a holistic approach may be increased in a bid to meet the challenges involved in transforming a complex energy system. It may also be useful to include a broad variety of stakeholders in research so as to provide a more resilient development of CCS deployment strategies.

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Modeling and measurement of CO2 solubility in salty aqueous solutions and application in the Erdos Basin

Cited by 20 publications

References 55 publications

Measurement of Solubility of CO2 in NaCl, CaCl2, MgCl2 and MgCl2 + CaCl2 Brines at Temperatures from 298 to 373 K and Pressures up to 20 MPa Using the Potentiometric Titration Method

Measurement of Solubility of CO2 in NaCl, CaCl2, MgCl2 and MgCl2 + CaCl2 Brines at Temperatures from 298 to 373 K and Pressures up to 20 MPa Using the Potentiometric Titration Method

Measurement of CO₂Solubility in NaCl Brine Solutions at Different Temperatures and Pressures Using the Potentiometric Titration Method

Scrutinising the Gap between the Expected and Actual Deployment of Carbon Capture and Storage—A Bibliometric Analysis

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Modeling and measurement of CO2 solubility in salty aqueous solutions and application in the Erdos Basin

Cited by 20 publications

References 55 publications

Measurement of Solubility of CO2 in NaCl, CaCl2, MgCl2 and MgCl2 + CaCl2 Brines at Temperatures from 298 to 373 K and Pressures up to 20 MPa Using the Potentiometric Titration Method

Measurement of Solubility of CO2 in NaCl, CaCl2, MgCl2 and MgCl2 + CaCl2 Brines at Temperatures from 298 to 373 K and Pressures up to 20 MPa Using the Potentiometric Titration Method

Measurement of CO2Solubility in NaCl Brine Solutions at Different Temperatures and Pressures Using the Potentiometric Titration Method

Scrutinising the Gap between the Expected and Actual Deployment of Carbon Capture and Storage—A Bibliometric Analysis

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Measurement of CO₂Solubility in NaCl Brine Solutions at Different Temperatures and Pressures Using the Potentiometric Titration Method