Thermodynamic Consistency Test for Experimental Solubility Data in Carbon Dioxide/Methane + Water System Inside and Outside Gas Hydrate Formation Region

In this work, a gas hydrate formation and dissociation study was performed on two multiphase pipeline systems containing gasoline, CO2, water, and crude oil, CO2, water, in the pressure range of 2.5–3.5 MPa with fixed water cut as 15% using gas hydrate rocking cell equipment. The system has 10, 15 and 20 wt.% concentrations of gasoline and crude oil, respectively. From the obtained hydrate-liquid-vapor-equilibrium (HLVE) data, the phase diagrams for the system are constructed and analyzed to represent the phase behavior in the multiphase pipelines. Similarly, induction time and rate of gas hydrate formation studies were performed for gasoline, CO2, and water, and crude oil, CO2, water system. From the evaluation of phase behavior based on the HLVE curve, the multiphase system with gasoline exhibits an inhibition in gas hydrates formation, as the HLVE curve shifts towards the lower temperature and higher-pressure region. The multiphase system containing the crude oil system shows a promotion of gas hydrates formation, as the HLVE curve shifted towards the higher temperature and lower pressure. Similarly, the kinetics of hydrate formation of gas hydrates in the gasoline system is slow. At the same time, crude oil has a rapid gas hydrate formation rate.

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Gas hydrate formation of sulfur dioxide by injection of liquid carbon dioxide into a natural layer saturated with methane and ice

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/302/1/012053 ◽

2019 ◽

Vol 302 ◽

pp. 012053

Author(s):

M K Khasanov ◽

S R Kildibaeva

Keyword(s):

Carbon Dioxide ◽

Sulfur Dioxide ◽

Gas Hydrate ◽

Hydrate Formation ◽

Liquid Carbon ◽

Liquid Carbon Dioxide ◽

Gas Hydrate Formation

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Study of Gas Hydrate Formation in the Carbon Dioxide + Hydrogen + Water Systems: Compositional Analysis of the Gas Phase

Industrial & Engineering Chemistry Research ◽

10.1021/ie102335v ◽

2011 ◽

Vol 50 (10) ◽

pp. 6455-6459 ◽

Cited By ~ 41

Author(s):

Veronica Belandria ◽

Ali Eslamimanesh ◽

Amir H. Mohammadi ◽

Dominique Richon

Keyword(s):

Carbon Dioxide ◽

Gas Phase ◽

Gas Hydrate ◽

Hydrate Formation ◽

Compositional Analysis ◽

Water Systems ◽

Hydrogen Water ◽

Gas Hydrate Formation

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Solubility of Acetophenone in Supercritical Carbon Dioxide

The Open Chemical Engineering Journal ◽

10.2174/1874123101610010018 ◽

2016 ◽

Vol 10 (1) ◽

pp. 18-28 ◽

Cited By ~ 4

Author(s):

Maria Y. Dwi ◽

Jessica Julian ◽

Jindrayani N. Putro ◽

Adi T. Nugraha ◽

Yi-Hsu Ju ◽

...

Keyword(s):

Experimental Data ◽

Carbon Dioxide ◽

Equation Of State ◽

Supercritical Carbon Dioxide ◽

Static Method ◽

Solubility Data ◽

Experimental Solubility Data ◽

Experimental Solubility ◽

Robinson Equation ◽

Supercritical Carbon

The solubility data of acetophenone in supercritical carbon dioxide (scCO2) were measured using a static method at several temperatures (313.15, 323.15, 333.15, and 343.15K) and pressures ranging from10 MPa to 28 MPa. The density based models (Chrastil and Del valle– Aguilera models) and the Peng-Robinson equation of state (PR-EOS) with quadratic and Stryjek-Vera combining rules were employed to correlate the experimental data. Good correlations between the calculated and experimental solubility data were obtained. The sum of squared errors (SSE) are 0.38 % and 0.37 % for Chrastil and Del Valle – Aguilera models, respectively; and 9.07 % for Peng-Robinson equation of state with quadratic combining rule and 4.00 % for Peng-Robinson equation of state with Stryjek-Vera combining rule.

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