Trondheim, Norway





HPC-PE (NO2.7)

Facility for high pressure or complex phase equilibrium measurements

This is a static-analytical phase equilibrium setup designed for accurate measurements at a wide temperature and pressure range and for a variety of fluids including toxic, explosive, sulphur containing, and corrosive mixtures at a wide pressure and temperature range. Both online and offline analysis of samples are facilitated.

In the design of the facility, there was an emphasis on accuracy, safety, and chemical compatibility with relevant components. The temperature of the cell is accurately controlled using liquid thermal baths. Accurate syringe pumps will be used to inject the fluids under test and to set their pressure. A GC with thermal conductivity (TCD) and flame ionization detectors (FID) facilitates accurate composition analysis of most fluids. The novel sampling system is also prepared for electrolytes and more tricky components for which external analytical techniques can be applied. Some mixture systems will form multiple liquid phases. Hence, the cell has three sampling points with adjustable height.

Areas of research

Thermodynamics, phase and chemical equilibrium measurements


Phase equilibrium cell

Water purification /  degassing system

State of the Art, uniqueness & specific advantages

Summary of specifications:

• Temperature: -60 – 150 (200) °C
• Pressure: 4 – 1 000 bar
• Have capabilities for electrolytes / brines
• Ideal for equilibria with multiple phases

The cell is specifically made for CCS, with a wide pressure range and robust material choices. It is expected that the cell will provide very high accuracy considering the wide pressure range.

Scientific Environment

The facility is located in the thermal laboratories of NTNU/SINTEF with its available infrastructures and services. Specifically, it could be a great advantage to utilize the ECCSEL TA8.3 CO2Mix setup for accurate gravimetric preparation of CO2-rich mixtures for calibration of the composition measurement systems. The facility is also directly adjacent to the offices of leading scientists in the field of SINTEF and NTNU.

Operating by

SINTEF Energy Research

SINTEF Energy Research
CAPTURE technologies:
Solvents, Sorbents, Systems, Low-temperature separation
STORAGE technologies:
Pressure/injection, Migration, Caprock/well integrity, Static modelling, Dynamic modelling, Leakage
UTILISATION technologies:
Smart integrations with carbon capture and re-use into valuable products, The importance of phase equilibria is dependent on the individual characteristics of the process
TRANSPORT technologies:
Security/troubleshooting, Fluid characterisation, Flow Characterisation, CO2 pipeline transport and integrity, Shipping of CO2
Research Fields:
Chemistry/Geochemistry, Modelling, Physical processes, Thermodynamics, fluid transport properties

Location & Contacts

Trondheim, Norway
Sigurd Weidemann Løvseth
RICC Contacts - Secondary contact
Morten Grønli

Facility Availability

Availability per year (in UA)
Duration of a typical access (average) and number of external users expected for that access
4-6 months. Minimum 1 month. Short access has to be fully supervised. 1 operator needed.

Quality Control / Quality Assurance (QA)

Activities / tests / data are:
Controlled: ISO 9001, ISO 14001, and ISO 45001
Link to your institution QA webpages if available:

Operational or other constraints

Specific risks:
Risk is dependent on mixtures and test conditions, but it is minimized by appropriate measures according to SINTEF's HSE system. For particularly demanding measurements, developing appropriate procedures and / or installation of physical safety installation may increase the preparation time and/or costs of the experiments.
Legal issues:
Access to the labs of SINTEF Energy Research is dependent on compliance to all relevant procedures and policies of the institute relating to HSE and protection of the intellectual property. Independent use of facilities will be dependent on individual approval as an operator by the SINTEF Energy Research following training.

CCUS Projects

EU-Funded CCUS Projects
H2020 / Green deal
StoRIES, Storage Research Infrastructure Eco-System