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Solubilities of carbon dioxide, hydrogen sulfide and nitrogen mixtures in methanol
Author(s) -
Rousseau R. W.,
Matange J. N.,
Ferrell J. K.
Publication year - 1981
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690270411
Subject(s) - bubble point , chemistry , isothermal process , thermodynamics , equation of state , methanol , carbon dioxide , hydrogen sulfide , hydrogen , bubble , organic chemistry , sulfur , physics , parallel computing , computer science
Previously published data for the six binary combinations that can be formed from CO 2 , H 2 S, N 2 and methanol are used to obtain parameters of the four‐suffix Margules equation describing liquid solution behavior. The vapor phase is described by the Soave modification of the Redlich‐Kwong equation of state. Isothermal binary data are fit well by these equations. The effects of temperature on the Margules parameters are significant and, except for N 2 ‐containing mixtures, the parameters were taken to be inversely proportional to absolute temperature. Experimental data were obtained for multicomponent mixtures of CO 2 , H 2 S, N 2 and methanol. Model predictions were tested against these data. Comparisons of predicted and measured values of bubble point pressure and equilibrium vapor compositions are satisfactory.