Adding carbon capture

Shipowner orders SOx scrubber with potential for retrofit to remove CO2

In what could be the start of a trend, an undisclosed shipowner has ordered carbon capture and storage-ready scrubber systems (CCS-ready) scrubbers from Finnish technology group Wärtsilä. Although announced recently, the order was placed in November 2022 and the delivery is expected to take place in 2023.

May 15, 2023

Wärtsilä is currently testing its CCS system at 70% capture rate and a pilot installation will take place within the next twelve months


Four 8,200 TEU container vessels, being built at an Asian-based yard, will be fitted with Wärtsilä’s CCS-Ready 35MW scrubber in an open loop configuration.


Wärtsilä says the scrubbers are called CCS-Ready because, as part of their installation, it will perform additional design and engineering work to ensure that future retrofits for a full CCS system on the vessels have already been accounted for during the newbuilding construction stage. This includes ensuring adequate space for the future installation of a CCS system, incorporating considerations for minimising idle load and optimising utilities and preparing the control and automation system accordingly. CCS-ready scrubbers will also be designed for integration with a particulate matter filter.

The scrubber manufacturer says that having a CCS-Ready solution assures that the undisclosed shipowner has continued regulatory compliance for SOx emissions today and opens the door to smooth CCS system adoption in the future. It adds that, by installing scrubbers that have been designed with the space and capabilities to have a CCS unit added, it is enabling shipowners to future proof their existing assets, while remaining competitive and compliant.   


Scott Oh, Director at Wärtsilä’s Exhaust Treatment Asia, said: “We are very excited to announce this world-first order for our CCS-Ready scrubber solution. By investing in a CCS-Ready scrubber, ship owners will future proof their assets and enable a smooth transition to CCS adoption once the technology is mature in the very near future. CCS is one of the key solutions to enable maritime decarbonisation in a short time frame, and we look forward to progressing our technology further.”

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