Emission reduction technologies for cruise ships: waste heat utilization for onboard CO₂ capture

This thesis explores and compares technologies aimed at reducing CO₂ emissions from cruise ships, with a particular focus on onboard carbon capture using amine-based scrubbers. The core of the study investigates the integration of CO₂ capture systems into the ship’s energy infrastructure by utilizing available waste heat for solvent regeneration. Results demonstrate the technical feasibility and energy advantages of combining waste heat recovery and LNG cold utilization to enhance the efficiency of onboard carbon capture systems, offering a viable pathway toward IMO compliance for the cruise sector.