Project Announcement: Vapour Liquid Equilibrium Measurements & Solid Formation Tests in Industrial Mix

June 28, 2023

High boiling-point components in mixed refrigerants can improve the performance of cryogenic liquefaction facilities used for LNG production. However, vapour liquid equilibrium (VLE) and solid formation predictions provided by different thermodynamic models can have significant variations at low-temperature conditions, increasing the margins required when sizing process equipment. This proposal will use specialised experimental techniques to measure VLE conditions for a single mixed refrigerant at low temperatures as well as determine solid formation conditions.  The resulting data will be used to test phase equilibrium predictions made with various thermodynamic models and establish whether any solid formation can occur within a given margin from the lowest operating temperature of the liquefaction plant.

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