Sumudu Karunarathne har til forsvar for graden philosophiae doctor (ph.d.) i programmet prosess-, energi- og automatiseringsteknikk ved Fakultet for teknologi, naturvitenskap og maritime fag innlevert avhandling med tittelen «Physicochemical data for amine based CO2 capture process».
Deltakere kan følge prøveforelesning og disputas digitalt via Zoom av smittevernshensyn i forbindelse med koronaviruset.
Tema for prøveforelesning: «Current status and climate mitigation potential of CO2 utilization technologies».
Prøveforelesning starter klokken 0930 og disputas klokken 1200 torsdag 18. juni.
The amine-based post-combustion CO2 capture from flue gas is a highly discussed CO2 capture method. Currently, several large and pilot scale facilities are operated around the world. The knowledge and understanding of the physicochemical properties of amine solutions are essential to design processes and equipment.
The main objective of this study is to measure the physicochemical properties of amine solutions by performing laboratory experiments. Accordingly, research work discusses the density and viscosity of different aqueous amine solutions with and without CO2 under different amine concentrations and temperatures. The effects of amine concentration, temperature and CO2 loadings on density and viscosity were reported. The existing measured data and correlations were reviewed and new correlations were developed to represent measured data with acceptable accuracies.
The uncertainty involved in the measuring methods were analyzed to investigate the quality of the measured data. The characteristics of the intermolecular interactions among molecules in the mixtures were discussed using measured densities and viscosities. Presented data and correlations in the thesis will be useful in both process design and simulations.