D8 – Report on the metrological infrastructure comprising the instruments adopted to determine the thermophysical properties of mixtures of interest for CCUS processes. The report will include at least 2simplified formulations for the prediction of the density of typical CO2 mixtures (in liquid and gas phase), suitable for use by flow computers to support the CCUS process design

To validate models needed to support the design of CCUS processes and to provide the necessary support to flow metering operations involving CO2 mixtures in the liquid phase, vapour phase or in supercritical conditions, significant progress was made on the study of amines, their mixtures with CO2 and H2O, and for transportation of CO2 mixtures in pipelines.

This report describes the characteristics of the metrological infrastructure implemented during the development of the MetCCUS project to obtain the thermophysical properties of CO2 mixtures of interest for industrial applications. To provide a simple access to the measured properties, two simplified equations of state were implemented: one for designing CO2 transport infrastructure and one for modelling carbon capture processes using aqueous amines.