DNV and partners launch CETO joint industry project (JIP) on low pressure solutions for CO2 ship transport

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Equinor, Shell, TotalEnergies, Gassco and classification society DNV have announced the kick-off of a new JIP to develop low-pressure solutions for the transportation of CO2 by ships. The CETO (CO2 Efficient Transport via Ocean) JIP will carry out the technology qualification of a low-pressure ship design and identify solutions to scale CO2 transportation volume. CETO is funded by the project partners and GASSNOVA through the CLIMIT programme and is expected to be completed in 2023.

Carbon capture and storage (CCS) will be a key technology if the world is to meet the goals of the Paris and Glasgow agreements. Although the technologies and the industry are very much still emerging, a possible challenge is connecting capture sources to facilities for use or storage sites, especially where pipelines are not an option. As a result, CO2 transport ship technology will be needed if large quantities are to be safely transported at costs that are commercially viable.

Today, most transport of CO2 via ship takes place at small scale and at medium pressure (15 bar at -28ºC), limiting the possibilities of scaling up to meet future growth in CCS.

The JIP looks to build experience in low pressure transport and fill a vital knowledge gap, by examining the fundamentals of a low-pressure CO2 transport chain, including:
• A LCO2 ship design, with low pressure tank and cargo handling system
• Material choice and testing
• Medium scale testing and simulation of cargo handling
• Conditioning and liquefaction
• Testing LCO2 behaviour at low pressure

“As an important part of tackling the climate crisis, reducing costs across the whole CCS value chain is essential,” said Johan Petter Tutturen, VP, Special Projects – Gas at DNV.

“Low pressure CO2 ship designs are a potentially important piece of the chain, but they need to be reliable and meet accepted safety standards. That is why we are very pleased to be working together with this strong consortium of CCS stakeholders to identify the technical risks and challenges to enable safe and economical operations going forward.”