Maritime Risk International
CO₂ capture
ClassNK has released its "Guidelines for Onboard CO
2 Capture and Storage Systems (Edition 2.0)", which provides requirements for the safe development and installation of onboard
carbon capture systems (OCCS) on vessels. In 2023 ClassNK published the first edition of the Guidelines , which outlined requirements
for OCCS using the amine absorption method. In Edition 2.0 the guidelines have been expanded to include requirements for OCCS
using the membrane separation method, which has a lower energy requirement compared to the amine absorption method and does
not require a permanent supply of amine solution.