PHYSICAL PROPERTIES OF HYDROGEN SULFIDE-WATER MIXTURES

Calculations concerning the production of heavy water by the hydrogen sulfide dual‐temperature exchange process require precise data on the physical properties of dry hydrogen sulfide and hydrogen sulfide‐water mixtures for temperatures between 25 and 170°C., and for pressures between 200 and 340 lb./sq.in.abs. However, data on enthalpy of hydrogen sulfide‐water mixtures were not found in the literature, and data published on hydrogen sulfide‐water compositions at equilibrium were given at such large intervals of temperature and pressure that they could not be interpolated accurately enough by ordinary means. Specific volume and enthalpy of dry, superheated hydrogen sulfide vapor, Composition of hydrogen sulfide‐water vapor and liquid in equilibrium, Enthalpy of hydrogen sulfide vapor saturated with water vapor, Enthalpy of water liquid saturated with hydrogen sulfide vapor, Deuterium distribution constants for vapor‐liquid equilibrium. A study was undertaken to express the properties, listed below, with equations suitable for solution on a digital computer and useful in mathematical models of the process. New correlating constants were derived where needed. The equations and typical results are presented in this paper. Copyright © 1969 American Institute of Chemical Engineers