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A modified Soave-Redlich-Kwong equation of state, which utilizes empirical binary interaction parameters in the mixing rules for the a and b coefficients, has been used to correlate complex phase behavior for mixtures of hydrocarbons and nonhydrocarbons. The correlation has been shown in a previous article to predict complex phase behavior associated with the systems hydrogen sulfide-water and carbon dioxide-water. This paper presents an extension of the previous study to predict complex phase behavior such as azeotropism and three phase equilibria for light hydrocarbon systems containing the nonhydrocarbons nitrogen, carbon dioxide, and hydrogen sulfide. Interaction parameters are presented for all the binaries considered.

The errors are only in the equation as published and did not enter into the calculations. The results reported in the paper are correct.

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