Isobaric vapor-liquid equilibria for binary mixtures of ethylbenzene and p-xylene with dimethylformamide

Abstract

Isobarlc vapor-liquid equilibrium data lor the systems ethyfbenzene-dlmethylformamlde and p-xytene-dimethylformamlde were obtained at 760 mmHg pressure by using a vapor recirculating type of equilibrium still. Both the systems form minimum-boiling azeotropes. The activity coefficient data were tested for thermodynamic consistency by the methods of Herrington, Black, and Norrlsh and Twlgg and correlated by the van Laar, Wilson, and Redllch-Kleter equations.

Compressed Liquid Densities and Excess Volumes for the Binary System CO2 + N,N-Dimethylformamide (DMF) from (313 to 363) K and Pressures up to 25 MPa

“…The experimental densities of DMF were correlated using three EoS's, the 11-parameter BWRS EoS, where V is the molar volume and the units for the corresponding constants are shown in Table , and the Taitequation, which is expressed as follows where ρ 0 is given as a modified Rackett equation 13 P 0 is a reference pressure equal to 0.1 MPa, and B T in the Tait equation is expressed as 13 where E is a constant taken to be equal to 100 as reported by Ihmels and Gmehling . Densities for DMF at atmospheric pressure reported in the literature ,,− were correlated to obtain constants A R , B R , C R , and D R of eq 12.…”

A multi-dimensional quasi-discrete model for the analysis of Diesel fuel droplet heating and evaporation

“…Following [59,60], the temperature dependence of the heat capacity of liquid bicycloalkanes for 10 ≤ n ≤ 25 was approximated by Expression (61) with the coefficients defined as: As in the case of previously considered components, the temperature range of applicability of these approximations is between melting and boiling temperatures.…”

“…Using data provided in [46,55,56,57,61,62,63,64,65,53], the dependence of critical and boiling temperatures on n was approximated by the following equations:…”

“…Following [59,60], the temperature dependence of the heat capacity of liquid alkylbenzenes for 8 ≤ n ≤ 24 was approximated by Expression (61) with the coefficients defined as:…”