The European Green Deal states that "energy storage and carbon capture, storage and utilization” is one of the priority areas to reduce greenhouse gas emissions of 55 % by 2030 and to become carbon neutral by 2050.

The project has received funding from the European Partnership on Metrology, co-financed by European Union Horizon Europe Research and Innovation Programme and from the Participating States.

A3.2.2 – Literature survey on the influence of temperature, pressure, material, tubing length and the specifications that are used for the sampling lines in the online measurement of the key impurities in CO2

April 9, 2026

The report has focused on CO2 sampling from high-pressure CO2 sources, such as, e.g. pipelines and gas cylinders. Influence of CO2 pressure, temperature, gas composition and sampling apporach onto (impurities) measurements in CO2 is discussed. A role of coatings for impurity measurements has been described. A new sampling approach has been suggested for accurate impurity measurements in CO2 in the high-pressure gas phase.

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A3.2.2 – Literature survey on the influence of temperature, pressure, material, tubing length and the specifications that are used for the sampling lines in the online measurement of the key impurities in CO2

April 9, 2026

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

March 2, 2026

D7 – Paper on the measurement of the thermophysical properties of CO2mixtures for CCUS (with target uncertainties: for density better than 0.1%, for specific heat capacity better than 1 %, for viscosity less than 3 %, for speed of sound in liquid better than 0.05 %, for gas phase at hightemperature 0.03 %) submitted to an open-access peer-reviewed journal

March 2, 2026