Experimental determination and calculation of the critical curves for the binary systems of CO2 containing ketone, alkane, ester and alcohol, respectively

Sun, Yongju; Li, Yanfen; Zhou, Jieyu; Zhu, Rongjiao; Tian, Yiling

doi:10.1016/j.fluid.2011.05.005

Cited by 13 publications

(4 citation statements)

References 17 publications

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“…[52] and it can be seen that there is good agreement. In this work, the mixture critical points were also determined; the values are given in Table S7 in the Supplementary Material and are plotted in Figure 4, together with data reported in the literature [68][69][70][71]. Again, the agreement is generally good except for one datum of Choi at al.…”

Section: Bubble-and Dew-pointssupporting

confidence: 57%

“…p, T projection of the critical locus for CO2 + n-heptane system: , in this work (VLE measurements); , this work (saturated phase densities); , Gurdial et al[68]; , Choi et al[69]; , Sun et al[70]; , Kalra et al[74]; , Juntarachat et al[71]; , critical point of pure CO2. Dashed line calculated using the procedure of Heidemann and Khalil[73] and the Peng-Robinson equation of state.…”

mentioning

confidence: 98%

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Thermodynamics of carbon dioxide-hydrocarbon systems

et al. 2018

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Understanding the thermophysical properties for mixtures of CO2 and hydrocarbons at reservoir conditions is very important for the correct design and optimization of CO2-enhanced oil recovery and carbon storage in depleted oil or gas fields. In this paper, we present a comprehensive thermodynamic study of the prototype system (CO2 + n-heptane) comprising highly-accurate measurements of the saturated-phase densities, compressed-fluid densities, and bubble and dew points at temperatures from 283 K to 473 K and pressures up to 68 MPa over the full range of composition. We use these results to examine the predictive capability of two leading thermodynamic models: the Predictive Peng-Robinson (PPR-78) equation of state and a version of the Statistical Associating Fluid Theory for potentials of the Mie form, known as SAFT-γ Mie. Both of these models use group contribution approaches to estimate interaction parameters and can be applied to complex multi-component systems. The comparison shows that both approaches are reliable for the phase behavior. Neither model is entirely satisfactory for density, with each exhibiting absolute average relative deviations (AARD) from the experimental data of about 4 % for the saturated-phase densities and 2 % for the compressed-fluid densities; however, SAFT-γ Mie is found to be much more accurate than PPR-78 for the compressibility, with an overall AARD of 6 % compared with 18 % for PPR-78.

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Section: Bubble-and Dew-pointssupporting

confidence: 57%

mentioning

confidence: 98%

Thermodynamics of carbon dioxide-hydrocarbon systems

et al. 2018

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“…The results of the different predictive models are summarized in Table . The available experimental data of these mixtures in the open literature − are collected.…”

Section: Resultsmentioning

confidence: 99%

Prediction of the Binary Interaction Parameter of Carbon Dioxide/Alkanes Mixtures in the Pseudocritical Region

Chen

Liu

et al. 2019

ACS Omega

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The interaction parameters between two components need to be first determined to obtain the thermophysical properties of the binary mixtures. In this paper, the research progresses of the binary interaction parameter for CO 2 and hydrocarbons (HCs) and their related mixtures are illustrated. Aiming at the physical property prediction of CO 2 /alkanes (C 1 –C 10 ) binary mixtures in pseudocritical regions, the experimental data of CO 2 /alkanes (C 1 –C 10 ) in the pseudocritical region available in the open literature are collected. Besides, the calculation of k ij is carried out by five typically accepted correlations selected from the literature. The effects of temperature, pressure, carbon number, and acentric factor on k ij are investigated. By researching the influence of the above five factors on k ij , it reveals that temperature is the most important one. Considering the influence of the critical temperatures of mixtures, a simple correlation is proposed to evaluate k ij for light HC mixtures in the pseudocritical region.

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“…In our previous study, [10][11][12][13][14][15] series of phase equilibrium data have been reported for many binary systems including the vaporliquid equilibrium data for carbon dioxide + DMC system at lower temperatures (273, 283, and 293 K). In this paper, the phase equilibria at higher temperatures were studied using a variable-volume autoclave.…”

Section: Introductionmentioning

confidence: 99%

Vapor-Liquid Equilibrium Data for Carbon Dioxide+Dimethyl Carbonate Binary System

Li¹,

Zhu²,

Yuan³

et al. 2013

Acta Physico-Chimica Sinica

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High pressure vapor-liquid equilibrium data for the carbon dioxide + dimethyl carbonate (DMC) binary system were measured at four temperatures in the 333.0 to 393.0 K range and under pressures ranging from 3.98 to 13.75 MPa. The experimental data were correlated with the Peng-Robison (PR) cubic equation of state and the van der Waals-1 mixing rule. The binary interaction parameters were also obtained. The agreement between experimental results and calculations was good.

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Experimental determination and calculation of the critical curves for the binary systems of CO2 containing ketone, alkane, ester and alcohol, respectively

Cited by 13 publications

References 17 publications

Thermodynamics of carbon dioxide-hydrocarbon systems

Thermodynamics of carbon dioxide-hydrocarbon systems

Prediction of the Binary Interaction Parameter of Carbon Dioxide/Alkanes Mixtures in the Pseudocritical Region

Vapor-Liquid Equilibrium Data for Carbon Dioxide+Dimethyl Carbonate Binary System

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