Onboard Carbon Capture Technologies

Onboard Carbon Capture and Storage (OCCS) technologies capture carbon from the fuel before carbon dioxide (CO₂) is produced by the ship's energy system, or capture CO₂ in the exhaust gases. As part of the study, a comprehensive overview of OCCS technologies revealed that from all categories of carbon capture technologies there exist concepts or pilots in shipping, including pre-, post-combustion and oxyfuel paradigms. Furthermore, the work identified numerous feasibility studies and pilots on chemical absorption (above 15 pilots and installations), as well as variant concepts for membrane separation technologies, mineralization, and pre-combustion technologies. However, the Technology Readiness Level (TRL) varies, with chemical absorption and mineralization being the OCCS technologies with current higher number of pilots and installations. A non-exhaustive overview of the market is also included, encompassing more than 25 makers for all OCCS technologies.