Determinação experimental de dados de equilibrio liquido-vapor de misturas de solventes e compostos organo-clorados

AUTOR(ES)
DATA DE PUBLICAÇÃO

2001

RESUMO

This work is a contribution to the study of vapor-liquid equilibrium of pollutant substances, mainly solvents and pesticides. It was studied the vapor-liquid equilibrium of isobaric systems at the pressures of 250 and 650mmHg. The systems were formed by the combination of the binary mixtures of 1,2-Dichloroethane, Trichloroethylene and l-Butanol. The data were obtained in a ebulliometer with liquid and vapor phase recirculation, appropriate to low and middle pressures zones. The quality of the measured P-T-x-y data was verified by applying the thermodynamic consistency test of Van Ness Fredenslund. The virial equation was used for representation of the deviations of vapor phase. The binary interaction parameters for the liquid phase activity coefficients models of Wilson, NRTL and UNIQUAC have been adjusted for all the systems by maximum likelihood principIe. The vapor pressure curves of the pure compounds of the systems were determined over the pressure zone between 250 and 650mmHg

ASSUNTO(S)

equilibrio liquido-vapor compostos organoclorinados vapor-liquid equilibrium organochloride compounds pesquisa experimental

ACESSO AO ARTIGO

Documentos Relacionados