Research areas

Research areas


Ongoing research activities


Development of economically and environmentally favorable absorbent systems

  • Screening apparatus – experimental testing of a large number of chemicals
  • Molecular simulation
  • Combined H2S and dehydration

Establishing basic models

  • Thermodynamic models
  • Kinetic models
  • Effective gas/liquid contact area
  • Degradation model

Studies of environmental impacts of the technology

  • Degradation chemistry
  • General ecotoxicology and biodegradation
  • QSPR/QSAR methodology

Process monitoring

  • Emission measurements from the gas phase (both offline and online)
  • Online monitoring of process (liquid and gas phase)
  • Measurement of mist

Experimental characterization of absorbents and packing materials

  • LP and HP vapour-liquid equilibrium
  • Kinetics
  • Thermal properties
  • Transport properties
  • Solvent degradation and corrosion

Validation of models for absorption and desorption

  • Pilot rigs (flexible flue gas based on propane gas, biomass, and coal) 
  • Testing rig for packing materials, liquid distribution, effective contact area etc.

Modeling and optimization of full scale plants

  • Using both commercial tools like Aspen Plus, Hysys, ProTreat and in-house process simulator, CO2SIM, rate based rigorous models of absorber, desorber, membrane-contactor and whole plants
  • Dynamic modeling and advanced process control
  • Modelling of mist particles

Techno-Economic Analysis (TEA) of industrial plants

  • Benchmarking of solvent systems and absorption based processes
  • In-house tool for CAPEX and OPEX calculations




Gemini members are part of several research projects. Some examples are given below:

  • REALISE demonstrates a refinery-adapted cluster-integrated strategy to enable full-chain CCUS implementation.
  • LAUNCH focuses on understanding and controlling degradation.
  • ALIGN-CCUS interlinked carbon capture, utilisation and storage research with the goal of transforming industrial regions into economically robust, low-carbon centres.
  • NCCS is large Norwegian CCS research center.




Hanna Knuutila. PhotoHanna Knuutila
Professor, NTNU


Eirik Falck da Silva. PhotoEirik Falck da Silva
Research Manager,
SINTEF Industry

Lars Erik Øi. PhotoLars Erik Øi
Professor, USN 


Lab and pilot