Thermodynamic measurement

Processium : thermodynamic measurements, models and data

Processium has a laboratory to perform thermodynamic measurements (Liquid vapour equilibrium ELV, Liquid liquid equilibrium, activity coefficient at infinite dilution, vapour pressure, solubility, normal boiling point, critical point, Henry coefficient).

These measurements are essential to characterize the products and mixtures to design a new process or to improve existing unit. Our physical properties database e-thermoTM allows our customers to capitalize their data obtained by thermodynamic measurements.

Processium use state of the art experimental thermodynamic facilities to perform thermodynamic measurements as for example vapor pressure, liquid vapor equilibrium, liquid liquid equilibrium, even in severe conditions of temperature and pressure. The techniques performed are:

-Static synthetic techniques: determination of (P, T, x)

-Static analytical techniques with sapphire cell fitted with micro sampling devices: determination of (P, T, x, y), (P, T, x’, x”) and (P, T) envelopes

-Ebulliometry technique: determination of (P, T, x, y)

-Microdistillation column for determination of azeotropic composition

-Exponential dilutor technique : determination of infinite dilution activity coefficient (ï�§∞)

-Stirred glass cell for determination of liquid-liquid equilibrium (T, x’, x”)

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