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DNV Releases Recommended Practice for Onboard Carbon Capture Systems
Classification society DNV has published a new recommended practice aimed at bringing greater consistency to how onboard carbon capture and storage (OCCS) systems are assessed and verified.
The guidance sets out a common method for assessing OCCS systems, DNV said in an article published on Monday.
It measures how much CO2 is captured, how much is emitted and how efficiently the system performs. It also outlines a process for independent verification.
Carbon capture technology enables CO2 emissions from a ship’s exhaust to be captured and stored onboard for discharge ashore.
Interest in onboard carbon capture has been growing as shipowners look for ways to cut emissions from vessels that are expected to remain reliant on conventional fuels for years to come.
DNV said the framework is designed to work across different carbon capture technologies and can be used for both newbuild and retrofit projects.
It covers performance calculations, measurement procedures and uncertainty assessments to help ensure results can be compared consistently across projects.
The release comes as the IMO continues work on guidelines for onboard carbon capture, with completion expected by 2028.
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