Technical Seminar on Onboard Carbon Capture and Storage (OCCS) Systems

The Onboard Carbon Capture and Storage (OCCS) technology is emerging as one of the potential technical solutions to reduce greenhouse gas (GHG) emissions from shipping.

To support this development, IMO's Future Fuels and Technology (FFT) Project organized the Technical Seminar on Onboard Carbon Capture and Storage (OCCS) Systems. The event took place on 11 September 2025 at IMO Headquarters, London. 

The event aimed to enhance the understanding of the latest developments in OCCS technology, infrastructure readiness and relevant environmental, safety and human element perspectives. 

This is part of broader work supporting the development of a regulatory framework for the use of onboard carbon capture and storage, as as outlined in the work plan approved by IMO's Marine Environment Protection Committee (MEPC 83).

• Please find the photos of the event here.
  

• The recording of the event will be available soon. 
  

Programme and Presentations

Please find the programme here and key points below. 

• IMO's Ongoing work on Onboard Carbon Capture Systems (OCCS) 

• Developing solutions for OCCS: insights from real-ship projects in safety, operation, and regulation

• Experience with the use of OCCS onboard Clipper Eris

• Unlocking the carbon value chain: operationalising offloading, transport and offtake of onboard captured CO₂

• An alternative approach to onboard carbon capture: turning CO₂ into limestone

• Onboard carbon capture - key considerations and challenges

• Onboard carbon capture:  applications and perspectives 

• The potential role of onboard carbon capture in decarbonization of shipping

• Onshore-to-onboard decarbonization: targeting emissions reductions in the conventional maritime system

• Onboard carbon capture implementation: lessons learned from the EverLoNG demonstrations

Presentations

Please find the presentations below: 

• IMO’s ongoing work on onboard carbon capture and storage (OCCS) systems - IMO Secretariat

• 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 onboard Clipper Eris - Mr. Sigurd Jennsen (Wärtsilä) and  Mr. Tor Øyvind Ask (Solvang ASA, Norway)

• 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: turning CO2 into limestone -  Ms. Alisha Fredriksson (Seabound Ltd.)

• Onboard carbon capture – key considerations and challenges - Mr. Hiromasa Kano  (Mitsubishi Shipbuilding)

• Onboard carbon capture:  applications and perspectives - Mr. Xiangqian Fang (China Classification Society)

• The potential role of onboard carbon capture in decarbonization of shipping - Ms. Chara Georgopoulou (DNV)

• Onshore-to-onboard decarbonization: targeting emissions reductions in the conventional maritime system - Dr. Hassan El-Houjeiri (KAPSARC, Saudi Arabia)

• Onboard carbon capture implementation: lessons learned from the EverLoNG demonstrations - Mr. Jetro Dam (Heerema) and Ms Juliana Monteiro (TNO) (Netherlands)
  

Carbon Capture and Storage (CCS)

Carbon Capture and Storage is recognized as one of several tools available to help reduce atmospheric carbon dioxide levels. As a potential temporary solution, it can play a valuable part in global efforts to mitigate climate change.

The London Protocol (LP) under IMO is the only international treaty providing a legal framework to regulate and enable the safe injection and storage of CO₂ in sub-seabed geological formations for permanent isolation.

Read more here.