The Global Centre for Maritime Decarbonisation (GCMD) has published findings from Project CAPTURED, the world’s first demonstration of a complete carbon value chain for onboard captured CO₂.
The pilot, completed in China on 25 June, involved Evergreen Marine Corp‘s container vessel Ever Top fitted with Shanghai Qiyao Environmental Technology’s onboard carbon capture and storage (OCCS) system.
CO₂ was offloaded ship-to-ship to Dejin Shipping’s Dejin 26, transferred by truck to Baorong Environmental and used as feedstock to produce low-carbon products.
At Baorong, liquefied CO₂ was combined with steel slag to create post-carbonated slag and precipitated calcium carbonate (PCC).
PCC offers higher purity and tighter control over particle size than conventionally quarried fillers, making it a potential substitute in sectors such as paper, plastics, and building materials. Both products embed carbon permanently, though under current EU ETS rules, only PCC used in construction materials is recognised as utilisation.
Sampling confirmed CO₂ consistently exceeded 99.95 vol% across custody transfer points. Of 25.44 mt offloaded from the Ever Top, 15.84 mt was delivered to the end-user. All operations were completed without safety incidents, following LNG and LPG transfer protocols adapted for liquefied CO₂.
The findings will be presented at the IMO’s OCCS seminar in London on 11 September.
GCMD CEO Professor Lynn Loo said aligning maritime capture with industrial end-use is essential to scale the technology.
