Computer-operated differential static apparatus for the measurement of vapor-liquid equilibrium data

Systems with ionic liquids: Measurement of VLE and γ∞ data and prediction of their thermodynamic behavior using original UNIFAC, mod. UNIFAC(Do) and COSMO-RS(Ol)

“…For fitting the required group interaction parameters, the Simplex-Nelder-Mead method was used [23]. All fitted group interaction parameters obtained are listed in table 15. The additionally required group interaction parameters, e.g., between the alkane and the alcohol group, etc.…”

“…For the VLE measurements, a computer driven static apparatus [14,15] was used. This apparatus can be applied for the measurement of reliable isothermal P-xdata up to 388 K and 350 kPa.…”

Bubble pressure measurements for the (1,1,1,2-tetrafluoroethane+triethylene glycol dimethyl ether) system

“…The apparatus was described in detail by Rarey and Gmehling [13,14] and it is schematically shown in figure 1. The (vapour + liquid) equilibrium (VLE) cell is kept in a thermostated oil bath.…”

Measurement of vapor–liquid equilibria (VLE) and excess enthalpies (HE) of binary systems with 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide and prediction of these properties and γ∞ using modified UNIFAC (Dortmund)

“…A detailed description of the measurement procedure is available in the literature [13,14]. The equipment consists of a thermostated equilibrium cell, which is connected with a Digiquartz pressure sensor (Model 245A, Paroscientific).…”