Diffusion Coefficients of SO<sub>2</sub>in Water and Partition Coefficients of SO<sub>2</sub>in Water–Air Interface at Different Temperature and pH Values

Koliadima, Athanasia; Kapolos, John; Farmakis, Lambros

doi:10.1080/10739140902831503

Cited by 6 publications

(9 citation statements)

References 19 publications

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“…The diffusion coefficient ðD SO 2 Þ values of SO 2 into metal solution in chloride systems increased with temperature as expected and the relationship between diffusion coefficients of SO 2 in metal solution and the temperature is linear as shown in Fig. 9 [14,15].…”

Section: Thermodynamics Parameterssupporting

confidence: 68%

Kinetics study of platinum and base metals precipitation in gas–liquid chloride system

Siame

Kasaini²

2016

Int J Ind Chem

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The use of dissolved sulphur from gaseous phase was tested for its ability to precipitate platinum ions in chloride system with alterations in the parameters such as metal ion concentration, hydrochloric acid concentration, pressure and temperature. The precipitation process was analysed on the basis of mass transfer coefficient, diffusivity models and also by absorption kinetic models. The maximum physical and reactive absorption capacity for sulphur dioxide was found to be 0.015 and 0.018 mol/L, respectively, at 298.15 K and 1.125 bars in a short contact time of 10 min. Based on the sulphur dioxide solubility data in gas-liquid system for both physical and reactive absorption conditions, the introduction of sulphur atoms in the chloride system was achieved. The mass transfer coefficients obtained for all metal ions were in the range 0.10-0.26 min -1 , while the diffusivity of SO 2 at different temperatures and pressures was found to be in the range (2.36-3.43) 9 10 -9 and (1.36-2.22) 9 10 -9 m 2 s -1 , respectively. Thermodynamic parameters such as the changes in Gibbs free energy, enthalpy and entropy were also evaluated. The results indicated that the precipitation of platinum and base metals in gas-liquid (G-L) chloride system was an endothermic process.

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Section: Thermodynamics Parameterssupporting

confidence: 68%

Kinetics study of platinum and base metals precipitation in gas–liquid chloride system

Siame

Kasaini²

2016

Int J Ind Chem

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“…All simulations are repeated three times with different initial configurations and the results are averaged. 71 and Moultos et al 35 (b) Comparison of self-diffusion coefficient between models used in this work and previous works of Cadogan et al 71 and Koliadima et al 72 at temperature of 323 K.…”

Section: Simulation Conditionsmentioning

confidence: 73%

“…Figure 2. (a) Comparison between CO 2 self-diffusion coefficients obtained from models used in this work and previous works of Cadogan et al71 and Moultos et al35 (b) Comparison of self-diffusion coefficient between models used in this work and previous works of Cadogan et al71 and Koliadima et al72 at temperature of 323 K.…”

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confidence: 74%

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Diffusion coefficients of CO₂–SO₂–water and CO₂–N₂–water systems and their impact on the CO₂ sequestration process: Molecular dynamics and dissolution process simulations

et al. 2021

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The high cost of the CO 2 sequestration in saline aquifers is a barrier to the implementation of them. However, a large portion of the cost is invested to purify and transport the CO 2 from the flue gas stream of the emission sources. Therefore, the possibility of injecting impure CO 2 will reduce the costs strongly. The diffusion coefficient is an important factor that plays a significant role in different aspects of the process. In spite of its importance, it is got less attention due to complex experimental procedures and low range of temperature and pressure applicability in the experimental conditions. To shed light on the effects of the impurity on the diffusion coefficient of CO 2 -water systems, two types of impurities (SO 2 and N 2 ) in two levels are considered in this study through the molecular dynamics simulation approach. Simulations are done on a wide range of pressure and temperature conditions to cover a wide range of operational conditions for CO 2 sequestration projects. The outcomes of these simulations were used in the direct numerical simulations to analyze the effect of the diffusion coefficient matrix changes on the CO 2 dissolution process such as dissolution flux, the motion and shape of convective fingers, and their patterns. Results indicate that impurity has a great impact on the

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“…[ 30 ]; h Koliadima et al. [ 31 ]; i Haimour and Sandall [ 32 ]. Diffusion coefficients of components 0.232 (H 2 O), 1.382 (CO 2 ) m 2 /day Cussler [ 33 ] Rock density 2300 kg/m 3 ETI [ 22 ] Lithostatic pressure gradient 0.165 bar/m ETI [ 22 ] Pore compressibility 4.5 × 10 −10 Pa −1 Zhou et al.…”

Section: Numerical Modelmentioning

confidence: 99%

A modelling study to evaluate the effect of impure CO2 on reservoir performance in a sandstone saline aquifer

Aminu

Manović

2020

Heliyon

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Carbon capture and storage (CCS) is expected to play a key role in meeting greenhouse gas emissions reduction targets. In the UK Southern North Sea, the Bunter Sandstone formation (BSF) has been identified as a potential reservoir which can store very large amounts of CO 2 . The formation has fairly good porosity and permeability and is sealed with both effective caprock and base rock, making CO 2 storage feasible at industrial scale. However, when CO 2 is captured, it typically contains impurities, which may shift the boundaries of the CO 2 phase diagram, implying that higher costs will be needed for storage operations. In this study, we modelled the effect of CO 2 and impurities (NO 2 , SO 2 , H 2 S) on the reservoir performance of the BSF. The injection of CO 2 at constant rate and pressure using a single horizontal well injection strategy was simulated for up to 30 years, as well as an additional 30 years of monitoring. The results suggest that impurities in the CO 2 stream affect injectivity differently, but the effects are usually encountered during early stages of injection into the BSF and may not necessarily affect cumulative injection over an extended period. It was also found that porosity of the storage site is the most important factor controlling the limits on injection. The simulations also suggest that CO 2 remains secured within the reservoir for 30 years after injection is completed, indicating that no post-injection leakage is anticipated.

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Diffusion Coefficients of SO₂in Water and Partition Coefficients of SO₂in Water–Air Interface at Different Temperature and pH Values

Cited by 6 publications

References 19 publications

Kinetics study of platinum and base metals precipitation in gas–liquid chloride system

Kinetics study of platinum and base metals precipitation in gas–liquid chloride system

Diffusion coefficients of CO₂–SO₂–water and CO₂–N₂–water systems and their impact on the CO₂ sequestration process: Molecular dynamics and dissolution process simulations

A modelling study to evaluate the effect of impure CO2 on reservoir performance in a sandstone saline aquifer

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Diffusion Coefficients of SO2in Water and Partition Coefficients of SO2in Water–Air Interface at Different Temperature and pH Values

Cited by 6 publications

References 19 publications

Kinetics study of platinum and base metals precipitation in gas–liquid chloride system

Kinetics study of platinum and base metals precipitation in gas–liquid chloride system

Diffusion coefficients of CO2–SO2–water and CO2–N2–water systems and their impact on the CO2 sequestration process: Molecular dynamics and dissolution process simulations

A modelling study to evaluate the effect of impure CO2 on reservoir performance in a sandstone saline aquifer

Contact Info

Product

Resources

About

Diffusion Coefficients of SO₂in Water and Partition Coefficients of SO₂in Water–Air Interface at Different Temperature and pH Values

Diffusion coefficients of CO₂–SO₂–water and CO₂–N₂–water systems and their impact on the CO₂ sequestration process: Molecular dynamics and dissolution process simulations