Solubility of CO 2  in water and NaCl solution in equilibrium with hydrate. Part II: Model calculation | Zendy

Sun Qiang | Zendy; Tian Huan | Zendy; Guo Xuqiang | Zendy; Liu Aixian | Zendy; Yang Lanying | Zendy

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Solubility of CO 2 in water and NaCl solution in equilibrium with hydrate. Part II: Model calculation

Author(s) -

Sun Qiang,

Tian Huan,

Guo Xuqiang,

Liu Aixian,

Yang Lanying

Publication year - 2018

Publication title -

the canadian journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 67

eISSN - 1939-019X

pISSN - 0008-4034

DOI - 10.1002/cjce.22939

Subject(s) - solubility , hydrate , thermodynamics , chemistry , solubility equilibrium , clathrate hydrate , work (physics) , equation of state , phase equilibrium , thermodynamic equilibrium , aqueous solution , organic chemistry , physics , phase (matter)

In this work, a calculation model of CO 2 solubility in equilibrium with hydrate was developed on the basis of the Patel‐Teja equation of state and Chen‐Guo hydrate model. The solubility of CO 2 in water and NaCl solution in equilibrium with hydrate were calculated respectively under the temperature window of 273.95 K to 282.55 K and the pressure window of 2.0 MPa to 8.0 MPa. The comparisons between the calculated and experimental values show that the average absolute deviation percentages (AADP) are 2.12 % for the CO 2 /H 2 O system and 2.31 % for the CO 2 /NaCl/H 2 O system, respectively. It demonstrates that the model proposed in this work could well predict the solubility of CO 2 in NaCl solution in equilibrium with hydrate.

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