ClassNK has announced the release of 'Guidelines for Onboard CO2 Capture and Storage Systems (Edition 2.0)', marking a significant development in the field of marine carbon capture technology.
These guidelines are the first to address onboard CO2 capture systems (OCCS) using the membrane separation method, which promises broad applicability across various types of vessels.
Advancements in CO2 capture and storage
ClassNK's guidelines aim to support the safe development, manufacturing, and installation of these cutting-edge systems.
With a growing emphasis on reducing greenhouse gas emissions, interest in capturing CO2 emitted from ships' exhaust gases is increasing. Consequently, there is a drive to develop onboard systems capable of effectively capturing and storing carbon dioxide.
Background and comparison with first edition
ClassNK initially introduced the 'Guidelines for Onboard CO2 Capture and Storage Systems' in 2023
ClassNK initially introduced the 'Guidelines for Onboard CO2 Capture and Storage Systems' in 2023, with a focus on systems utilising the amine absorption method.
Now, the newly issued Edition 2.0 expands to include systems based on the membrane separation method. This method is noted for its reduced energy requirements and does not necessitate a continuous supply of amine solution, distinguishing it from its predecessor.
Unified guidelines and functional requirements
Further to introducing the membrane separation method requirements, ClassNK has standardised the essential functional requirements for OCCS.
By identifying the common elements across different capture methods, they have compiled a set of generic requirements applicable across various technologies, regardless of the specific carbon capture approach used.
