The objective of this study is to acquire data to design an extractive distillation process for separating light hydrocarbons.
A key element of success in the study is the measurement of vapor-liquid equilibria at pressures of 2 to 5 bar, to determine the liquid and vapor compositions in a mixture of heavy and light components (boiling point difference > 230°C).
We undertook this study by:
Developing efficient analytic methods,
Developing a suitable experimental strategy to acquire measurements in line with customer’s project and time constraints.
The measurements were carried out successfully in our labs, and Processium was able to provide:
A feedback on notable issues encountered, particularly degeneration of seals or corrosion problems
Data values which allowed our customers to better understand their process, and for the licensor to anticipate autonomously any future maintenances. A considerable profit in maintenance was achieved with this study.
Our client conducted a study of biodiesel conversion and separation in which our teams provided essential thermodynamic expertise for the design of the process.
The objective of this study was to obtain liquid-liquid-vapour equilibria measurements for a complex mixture. This study involved:
Thermodynamic measurements on viscous mixtures at high pressure
Very complex sampling protocol as a result of the differences in volatility of the compounds (methanol-glycerol) and the operating conditions
A complex analysis process due to the nature (vegetable oil) and the physical properties of the compounds
Processium successfully completed this study by using:
A customized experimental strategyallowing timely data acquisition in line with client project requirements
Objectivity and a wider perspectivein interpreting the obtained results to precisely understand the behaviour of client compounds.
The measurements allowed definition of the thermodynamic behavior of products mixture in a large range of temperature (60 to 200°C). This data acquisition allows client to successfully design its reactors.
Our customer wishes to know the solubility of a solid inorganic salt in an aqueous solution at 80 °C. The influence of pH of this solution on the solubility of the salt must be estimated. Measures are led at 3 different hydrogen potential by going from pH 4 (acidic), pH 7 (neutral) and to pH 9 (basic).
Why do we speak about challenges? For two main reasons:The solubility of the salt in the liquid is very high. The first difficulty is to identify an analytical methodology adapted to the inorganic solid. ICP-AES had been selected as the most accurate technique for the analysis of this molecule and was successfully used.
Thermogravimetry study was coupled with a specific chemical analysis to insure reliability of the supplied results because of the combination of these two analytical methods.
We use an equipment able to realize measures at high temperatures until 150 °C.
The quality of the supplied results is validated by a repeatability procedure within the frame of REACH standards.