Record Display for the EPA National Library Catalog


Main Title Vapor/Liquid Equilibria of Constituents from Coal Gasification in Refrigerated Methanol.
Author Chang, T. ; Rousseau, R. M. ; Ferrell, J. K. ;
CORP Author North Carolina State Univ. at Raleigh. Dept. of Chemical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Year Published 1987
Report Number EPA-R-809317; EPA/600/7-87/004;
Stock Number PB87-165627
Additional Subjects Coal gasification ; Methanol ; Tables(Data) ; Equations of state ; Liquid vapor equilibrium
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB87-165627 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 147p
The report describes a thermodynamic framework, established for the development of a model of the phase equilibria of mixtures of methanol and the major constituents found in gases produced from coal. Two approaches were used to model the equilibrium behavior: (1) an equation of state was used to describe both gas and liquid phases, and (2) an equation of state was used to describe the gas while a solution model involving activity coefficients was used to describe the liquid. The approach chosen for each species was based on the component volatility. An experimental apparatus was constructed to obtain data against which the model predictions could be tested. The comparison was favorable. P-T-x-y data on mixtures of CO2, methanol, and water, and mixtures of CO2, nitrogen, and methanol at temperatures in a range of -30 to 25 C and pressures up to 54 atm (5472 kPa) were obtained. Comparisons of the calculated and measured values of bubble point pressures and/or liquid compositions of the dissolved gases were satisfactory.