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CLIMIT-Forskning, utvikling og demo av CO2-håndtering

Treatment of water-CO2 mixtures including fluid flow and thermodynamic

Alternativ tittel: Termodynamisk behandling av vann og CO2 blanding i strømende fluid

Tildelt: kr 4,3 mill.

Behaviour of water mixed with CO2 is crucial for several processes, not at least for issues concerning storage of CO2 in reservoirs. During an accidental blowout from a reservoir, CO2 may mix with formation water and a gradual change from supercritical co nditions down to a situation of low pressure and low temperature will occur. This process might create different forms of phases, including water ice, hydrates and solid CO2. Also, the behaviour of a CO2 transportation or injection stream will be affected by the water content. Water and other impurities will alter the thermodynamic properties, including the different phase envelopes. Brilliant with ThermoProp (Brilliant is a CFD system and ThermoProp is a themodynamic pckage, both are Petrell proprietari es) provides a novel approach to coupling of multi-purpose CFD modelling and rigorous thermodynamic modelling. Withn Brilliant, ThermoProp provides a generic interface to continuous thermodynamic properties, regardless of which equation of state or thermo dynamic model is being used. Petrell has a unique fundament for tackling the inherent complexity in multi-component multi-phase situations, where N components and M phases interact mechanically, interact chemically and exchange energy. The novelty of thi s project lies in utilizing state of the art thermodynamic models for mixtures containing CO2 and water in real world simulation cases. Reservoir blowout or process segment depressurization is examples of processes that are multi-physical in nature. Fluid flow, heat transfer, thermodynamic property calculations, phase changes and gravity, are all examples of necessary ingredients of a complete simulation model. This project aims to develop technology to handle CO2-water mixtures in fluid flow and thermod ynamic. This imply that the thermodynaic must treat multiple phases within the same phase and both the fluid flow equations and the thermodynamic must work together.

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CLIMIT-Forskning, utvikling og demo av CO2-håndtering