Enthalpy and dew-point calculations for aqueous gas mixtures produced in coal gasification and similar processes

Abstract

Researchers present a molecular-thermodynamic method for calculating enthalpies and dewpoints for compressed, water-containing synthetic gases obtained from the gasification of coal or heavy fossil fuels, calculate ideal-gas contributions using Harmens, method and taking gas-phase nonideality into account using de Santis and Breedveld's modification of the Redlich-Kwong equation of state, give all necessary parameters for water and for 12 components common in synthetic gases, and introduce some typical calculation results to illustrate the computational method, which is applicable from 300 to 1000 K and up to 300 atm.