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Isobaric Vapor–Liquid Equilibrium Data for the Binary Systems of Dimethyl Carbonate with Xylene Isomers at 93.13 kPa
journal contribution
posted on 2017-07-22, 13:30 authored by Satyajeet S. Yadav, Nilesh A. Mali, Sunil S. Joshi, Prakash V. ChavanIsobaric binary vapor–liquid equilibrium (VLE) data for dimethyl
carbonate with xylene isomers (p-xylene, m-xylene, o-xylene, and ethylbenzene) were
measured at the local atmospheric pressure of 93.13 kPa by using a
dynamic recirculation still. The experimental VLE data were tested
and found to be thermodynamically consistent by Herington and Van
Ness consistency test. The experimental VLE data were correlated using
the Wilson, NRTL, and UNIQUAC activity coefficient models and binary
interactions parameters were estimated using a suitable objective
function. The absolute mean deviation between the experimental and
the model predicted values of vapor phase composition and total pressure
was well within acceptable limits. No azeotrope was observed in any
of the binary pairs and appeared to be easy for separation using conventional
distillation method.