FUTURE INSIGHT
Onboard Carbon Capture and Storage (OCCS)
Onboard carbon capture and storage (OCCS) systems are a potentially important technical solution to the reduction of GHG emissions in shipping. OCCS systems remove and store CO2 from exhaust for later deposit or utilization.
The Technical Seminar on Onboard Carbon Capture and Storage (OCCS), organized by The Future Fuels and Technology Team, was held at IMO Headquarters on 11 September 2025 to share technical knowledge between stakeholders on the current state of OCCS technologies. The hybrid event was attended by around 400 participants.
The diverse group of speakers at this event shared their perspectives on various aspects of OCCS technologies including practical experiences from existing onboard projects, development of the OCCS value chain, alternative carbon capture technologies and the role of OCCS within the broader context of the shipping industry.
Video: Technical Seminar on OCCS
Presentations: Technical Seminar on OCCS
IMO’s ongoing work on OCCS
IMO’s ongoing work on onboard carbon capture and storage (OCCS) systems – IMO Secretariat
OCCS Insights: Safety, Operation, and Regulation
Developing solutions for OCCS: insights from real-ship projects in safety, operation, and regulation – Mr. Joseph Ohg (PANASIA, Republic of Korea) and Mr. Joonghun Kim (Korean Register, Republic of Korea)
Experience with the use of OCCS on Clipper Eris
Experience with the use of OCCS onboard Clipper Eris – Mr. Sigurd Jennsen (Wärtsilä) and Mr. Tor Øyvind Ask (Solvang ASA, Norway)
Unlocking the carbon value chain
Unlocking the carbon value chain: operationalising offloading, transport and offtake of onboard captured CO2 – Prof. Lynn Loo (GCMD)
An alternative approach to onboard carbon capture
An alternative approach to onboard carbon capture: turning CO2 into limestone – Ms. Alisha Fredriksson (Seabound Ltd.)
OCCS: key considerations and challenges
Onboard carbon capture – key considerations and challenges – Mr. Hiromasa Kano (Mitsubishi Shipbuilding)
OCCS: applications and perspectives
Onboard carbon capture: applications and perspectives – Mr. Xiangqian Fang (China Classification Society)
The potential role of OCCS
The potential role of onboard carbon capture in decarbonization of shipping – Ms. Chara Georgopoulou (DNV)
Onshore-to-onboard decarbonization
Onshore-to-onboard decarbonization: targeting emissions reductions in the conventional maritime system – Dr. Hassan El-Houjeiri (KAPSARC, Saudi Arabia)
Lessons learned from the EverLoNG demonstrations
Onboard carbon capture implementation: lessons learned from the EverLoNG demonstrations – Mr. Jetro Dam (Heerema) and Ms Juliana Monteiro (TNO)
