The Global Centre for Maritime Decarbonisation (GCMD) has reported that its onboard carbon capture pilot has achieved 7.9% GHG emissions savings across the full carbon value chain, with the system operating at a 10.7% capture rate. This is equivalent to 0.84 tonnes of emissions avoided per tonne captured and offloaded when considering the full lifecycle of the CO2, including its final utilisation or permanent storage, the Singapore-based non-profit said in a statement published today (6 January). The analysis, which was verified by classification society DNV, measured the lifecycle GHG emissions savings from GCMD’s CAPTURED project, which saw 25.4 metric tonnes […]

Climate tech company, Calcarea, and naval architecture and marine engineering firm, Aurelia Design, have entered into a collaboration to bring ocean-based carbon capture technology to the maritime sector. The partnership combines Calcarea’s carbon removal process with Aurelia’s expertise in green ship design and e-systems integration, Aurelia said in a statement today (10 November). Central to the collaboration is Calcarea’s limestone weathering technology — a system that, noted Aurelia, accelerates a natural process where carbon dioxide (CO₂) reacts with limestone and seawater, transforming it into stable bicarbonates safely stored in the ocean. According to Aurelia, the approach ‘offers a nature-based, permanent, […]

ClassNK’s newly-published second edition of its Guidelines for Onboard CO2 Capture and Storage Systems now includes ‘world-first’ requirements for onboard CO2 capture systems (OCCS) using the membrane separation method. In the first edition of the guidelines, published in 2023, ClassNK outlined requirements for OCCS using amine absorption method. In a statement issued today (29 October), ClassNK said that expanding the guidelines to include the membrane separation method was important because it has a ‘lower energy requirement compared to amine absorption method and does not require a permanent supply of amine solution’. The guidelines are available to download here via ClassNK’s […]