During DSP design, development or optimisation phases, reliabilty of thermodynamic data is a key issue. In its laboratories, Processium is able to develop reliable methodologies to make thermodynamics measurement like:
- Vapour and sublimation pressure
- Fluid phase equilibria for mixtures
- Azeotrope determination (composition and temperature)
- Activity coefficients at infinite dilution
- Gas and solid solubility measurements
- Supercritical vapor-liquid equilibria
- Excess enthalpies of mixing
Operating conditions of these measurements cover a range of pressure from 10-4 Pa to 107 Pa, and of temperature from -40°C to 300 °C.
If requested by the project, Processium has also a proven experience in thermodynamic modelling and, generally speaking, of key physico-chemical properties requested for process design.
Our Case Studies
- Prediction of physico-chemical data to characterize synthetic oils
- Vapor-liquid-liquid equilibria of vegetable oil/methanol/glycerol up to 200°C for biodiesel production
- Vapor-liquid equilibria of solvent and light hydrocarbons at 2,5 bar
- Risk assessment of a chemical reaction thermal runaway
- Thermodynamic data requested for the sizing of a purification process
- Vapor-liquid equilibria of refrigerant mixtures up to 35 bar (PTxy)
- Liquid-liquid equilibria of methanol/water/ether/salts at 1 bar (PTxx’)
- Vapour-liquid equilibria of electrolytes systems at 50 mbar (PTxy)
- Vapor-liquid-liquid equilibria of hydrogen sulfide/mercaptan/water at 4 bar (PTxx’y)
- Activity coefficient measurements for screening absorption solvents
- Gas solubility measurements of hydrogen sulfide in an acetamide at 25 °C
- Enthalpies of mixing between acrylic acid and methyl ethyl ketone at 105 °C at 5 bar
- Vapor-liquid equilibria of supercritical gases up to 90 bar (PTxy)
- Vapor-liquid-solid equilibria of natural gases down to -40°C
- Liquid-solid equilibrium and determination of eutectic composition down to -70°C
- Solubility of inorganic salts in chlorhydric acid solutions up to 160°C (PTx)
- Solubility of O2, N2, H2, HCl, Cl2, NH3, H2S, NOx, CO2 in various liquids up to 30 bar (PTx)
- Vapor-liquid equilibria of peroxide mixtures between 10 and 50 mbar (PTx)
- Esterification and transesterification kinetic measurements up to 230°C
- Measurements of kinetics for hydrogenation of alkenes at 20 bar
- Measurements of Kinetics of Chlorination at -10°C
- Pressure impact on azeotrope composition to design a pressure swing distillation
Our Equipment
Should you need any additional information on our offer, do not hesitate to contact us