AZEOTROPY AND CRITICAL-BEHAVIOR IN THE SYSTEM PROPANE-HYDROGEN SULFIDE

There is a large discrepancy in the values reported in the literature for the azeotrope in the system propane-hydrogen sulfide. Previous inv estigations did not measure the azeotrope directly, but inferred it fr om other equilibrium measurements. In this work the azeotrope was meas ured directly. Correlations based on the new data were developed. In a ddition the binary critical locus was determined. The new values for t he critical locus are in good agreement with the values reported in th e literature. A comparison was made with several simple correlations f or binary critical loci. The results of these comparisons showed that while good correlations exist for the critical temperature, the correl ations for the critical pressure are not as good.