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Fluid phase equilibria in the system hydrogen sulphide‐water at high pressure. Application of an extended Henry's law
Author(s) -
Carroll John J.,
Mather Alan E.
Publication year - 1993
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270160309
Subject(s) - henry's law , solubility , thermodynamics , hydrogen sulphide , chemistry , hydrogen , partial pressure , phase (matter) , liquid phase , phase equilibrium , law , organic chemistry , physics , sulfur , oxygen , political science
Henry's law is often used to correlate the solubility of a gas in water. Such an approach is frequently employed to calculate the solubility of hydrogen sulphide in water. However, Wright and Maass [1] clearly demonstrated that the strict Henry's law did not apply to the solubility of hydrogen sulphide in water. That is, the solubility of hydrogen sulphide is not directly proportional to its partial pressure, even at seemingly low pressures. By accounting for the non‐idealities in the vapour phase, Carroll and Mather [2] showed how a simple modification of Henry's law could be used for moderate pressures (up to 1 MPa). In this paper, a further extension of Henry's law is used to model the vapour‐liquid equilibrium at higher pressures and temperatures. It is also applied to liquid‐liquid and vapour‐liquid‐liquid equilibria, areas where Henry's law is rarely used.