Simulating the capture of CO2 from natural gas: New data and improved models for methane + carbon dioxide + methanol

Hughes, Thomas J.; Kandil, Mohamed E.; Graham, Brendan F.; May, Eric F.

doi:10.1016/j.ijggc.2014.09.020

Cited by 11 publications

(8 citation statements)

References 13 publications

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“…Measurements of VLE were completed via the analytic method (sampling and gas chromatography) with the apparatus shown in Fig. 3 This apparatus is very similar to those described previously for measurements of systems relevant to natural gas processing (Kandil et al, 2010;Kandil et al, 2011;Hughes et al, 2014;Hughes et al, 2015;May et al, 2015;Hughes et al, 2017). The major difference in this apparatus from those described previously was the placement of the equilibrium cell inside an incubator oven (Memmert IPP 110) rather than inside a vacuum can within a Dewar.…”

Section: Vapour-liquid Equilibrium Methodsmentioning

confidence: 99%

Thermodynamic properties of hydrofluoroolefin (R1234yf and R1234ze(E)) refrigerant mixtures: Density, vapour-liquid equilibrium, and heat capacity data and modelling

Ghafri

Rowland

Akhfash

et al. 2019

International Journal of Refrigeration

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Liquid-phase and vapour-phase densities are reported for the binary refrigerant mixtures (R125 + R1234ze(E)), (R134a + R1234ze(E)), (R143a + R1234ze(E)), (R1234ze(E) + R1234yf), (R125 + R1234yf), (R143a + R1234yf) and (R125 + R152a). The measurements span temperatures from (252 to 294) K and pressures from (0.8 to 4.2) MPa. Vapour-liquid equilibria (VLE) and liquid isobaric heat capacities are also reported for some mixtures. These measurements and previously published data were used to tune binary interaction parameters in existing Helmholtz energy models. Significant improvements in the predicted densities were achieved, for example the root mean squared relative deviation decreased from 0.33 % to 0.021 % for (R143a + R1234yf). The most significant improvement in the description of VLE occurred for (R1234yf + R1234ze(E)) where the root mean squared deviation in the predicted vapour phase compositions decreased from 0.010 to 0.00084 (a factor of 12).

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Section: Vapour-liquid Equilibrium Methodsmentioning

confidence: 99%

Thermodynamic properties of hydrofluoroolefin (R1234yf and R1234ze(E)) refrigerant mixtures: Density, vapour-liquid equilibrium, and heat capacity data and modelling

Ghafri

Rowland

Akhfash

et al. 2019

International Journal of Refrigeration

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“…One of the required inputs into these simulations is the dependence of viscosity on the CO2 + CH4 mixture composition, temperature and pressure. A second example is in the cryogenic processing of natural gas: more accurate predictions of gas mixture viscosities at low temperatures and high pressures would help improve simulations of the Controlled Freeze Zone [4] process or the Rectisol process [5,6], which are intended to achieve CO2 content specifications for pipeline gas and LNG, respectively.…”

Section: Introductionmentioning

confidence: 99%

Viscosity of {xCO2+(1−x)CH4} with x=0.5174 for temperatures between (229 and 348)K and pressures between (1 and 32)MPa

Locke

Stanwix

Hughes

et al. 2015

The Journal of Chemical Thermodynamics

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“…And we use the individually optimized parameters of pure components for the new -function proposed in this work (3) to develop generalized equations in terms of the acentric factor . Pure component constants, including critical properties, and vapor pressure data are obtained from Poling et al [24], Yaws [25], and Smith and Srivastava [26].…”

Section: Theoriesmentioning

confidence: 99%

“…Sample container: it is 130 cm 3 . Automatic pump: rated operation pressure is 100 MPa with resolution of 1 Psi, and the range of operation pump volume is 500 cm 3 with resolution of 0.001 cm 3 .…”

Section: Apparatusmentioning

confidence: 99%

“…With the increasing demand of CO 2 resource, exploration and development of high CO 2 content gas reservoirs are becoming one part of the future oil-gas strategy [1]. Currently, the discovered high CO 2 content gas reservoirs in the world are mainly distributed over the Pacific, such as Japan, Indonesia, New Zealand, Philippines, Vietnam, Thailand, Malaysia, Australia, Mexico, America, and Canada [2][3][4][5]. Twenty-eight high CO 2 content gas reservoirs have been discovered in China and they are mainly distributed in oil-bearing basins in the east of China, in which the high CO 2 content natural gas reserve is 20000 × 10 8 m 3 in Songliao basin [6].…”

Section: Introductionmentioning

confidence: 99%

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Phase Behavior and Physical Parameters of Natural Gas Mixture withCO2

Hou

Deng

Zhang

et al. 2015

Journal of Chemistry

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The two-flash experiment, constant composition expansion experiment, saturation pressure measurement experiment, and phase transition observation experiment from well bottom hole to well head of four high CO2content natural gas samples were carried out by using the JEFRI-PVT apparatus made from DBR Company of Canada. The experimental results show that in the four high CO2content gas samples no phase transitions will take place at temperatures greater than 35°C. In the gas-liquid two-phase region, saturation pressures, critical pressure, critical temperature, and an integratedP-Tphase diagram of different CO2content natural gases are calculated by using the modified PR equation of state and modified (T) equation proposed by Saffari. The deviations between the saturation pressure calculated by using the model proposed in this study and experimental measured saturation pressure are very small; the average relative error is only 2.86%. Thus, the model can be used to predict the phase equilibrium parameters of high CO2content natural gas.

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Simulating the capture of CO2 from natural gas: New data and improved models for methane + carbon dioxide + methanol

Cited by 11 publications

References 13 publications

Thermodynamic properties of hydrofluoroolefin (R1234yf and R1234ze(E)) refrigerant mixtures: Density, vapour-liquid equilibrium, and heat capacity data and modelling

Thermodynamic properties of hydrofluoroolefin (R1234yf and R1234ze(E)) refrigerant mixtures: Density, vapour-liquid equilibrium, and heat capacity data and modelling

Viscosity of {xCO2+(1−x)CH4} with x=0.5174 for temperatures between (229 and 348)K and pressures between (1 and 32)MPa

Phase Behavior and Physical Parameters of Natural Gas Mixture withCO2

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