The project Realising Maritime Carbon Capture to Demonstrate the Ability to Lower Emissions (REMARCCABLE) was carried out by the Oil and Gas Climate Initiative (OGCI), the Global Centre for Maritime Decarbonisation (GCMD) and Stena Bulk together with a consortium of maritime industry players. These include classification societies American Bureau of Shipping (ABS) and Lloyd’s Register (LR), as well as the companies Alfa Laval, Deltamarin, Seatrium, and TNO.
The engineering project examined the design and cost implications of retrofitting a carbon capture system on the medium-range (MR) tanker Stena Impero. The research showed that this technology could reduce the vessel’s carbon dioxide (CO2) emissions by up to 20% annually, with a fuel consumption increase of just under 10%, according to the project partners.
The estimated cost for building and installing the complete system on the Stena Impero is approximately $13.6 million, resulting in an abatement cost of $769 per ton of avoided CO2 for the prototype. However, the consortium anticipates that further research and development will lower these costs, enhancing the viability of onboard carbon capture and storage for the shipping industry.
The study also explored the integration of OCCS in new vessels, suggesting that advancements in capture rates and fuel penalties could be achieved through the use of more efficient engines, heat pumps, and alternative solvents.
“OCCS has gained traction in recent years as a feasible approach to meet the 2023 IMO revised GHG emissions reduction targets. However, its adoption faces numerous hurdles, including the need to balance the tension between maximising CO2 capture rates while maintaining commercially acceptable CapEx and OpEx. This study provides quantitative insights on managing the trade-offs between the actual cost of operating OCCS and its emissions reductions potential,” Professor Lynn Loo, CEO of GCMD, said.
“For OCCS systems to be practical, the industry needs to manage captured CO2 effectively. To this end, GCMD has previously completed a study to define the operational envelope for offloading onboard captured CO2, contributing to the whole-of-system approach to emissions reduction via carbon capture,” Loo added.
source: offshore-energy.biz
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