LNG Carbon Capture Test Achieves 'Promising Results'

The progression towards a net-zero future has gained a boost following the completion of a test that saw the implementation of a new carbon capture technology on an LNG carrier, the Seapeak Arwa.

The project - titled EverLoNG - consists of a conglomeration of international companies including MAN Energy Solutions, Conoship, Lloyd’s Register, Bureau Veritas, Heerema Marine Contractors, TotalEnergies, Anthony Veder, SINTEF, and TNO - the last of which is the project lead (TNO is the largest fully independent research, development and consultancy organisation in the Netherlands).

The project has been divided into two phases, the first of which has just been completed.

This first phase commenced in September 2023, with the installation of the prototype carbon capture system aboard the Seapeak Arwa - an LNG carrier that operates on behalf of TotalEnergies. 

The 82,000 dwt vessel operated on trans-Atlantic routes for the duration of the trial. In total, the vessel operated with the carbon capture technology for 1,000 hours. The test concluded that the technology was capturing up to 250 kg of CO2 per day. 

Such were the results that the research team believes that a rate of 85% capture could be achieved following further system optimisation. 

Scheduled to run until March 2025, the project will now enter its second phase which will see the carbon capture technology installed aboard the SSCV Sleipnir, a semi-submersible crane vessel owned and operated by Heerema Marine Contractors. Like the Seapeak Arwa the SSCV Sleipnir operates on LNG.

This second phase of the trial will see the SSCV Sleipnir being run for 500 hours with the carbon capture technology. Captured CO2 will be stored as a liquid in an onboard container. When necessary, the container will be offloaded and transported to an industrial facility where the CO2 will either be repurposed or stored in the geological subsurface. 

Ultimately, the project aims to provide a solid-evidence base for the efficacy of ship-based carbon capture (SBCC), especially for LNG-powered vessels.

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