Phase Equilibria
In the context of the energy transition, processes related to storage and utilization of CO2 and H2 as well as fluid mixtures containing natural gas are gaining relevance. These processes take place at elevated pressure for which determining the respective phase equilibria as well as system properties like the interfacial tension and mass transfer characteristics is challenging. Studies on the phase equilibria as well as the mixture densities and interfacial tension are carried out on model and real systems comprising aqueous as well as hydrocarbon phases in presence of carbon dioxide, extending towards hydrogen and ammonia. Different techniques are carried out in order to investigate the mass transfer experimentally among which there is inline Raman Spectroscopy, a gas chromotograph and volume expansion of standing drops.