en.Wedoany.com Reported - Shipboard carbon capture company Carbon Ridge announced that its centrifugal onboard carbon capture system (OCCS) completed its first marine deployment aboard the LR2 product tanker STI Spiga, owned by Scorpio Tankers Inc., with DNV assessment confirming a CO2 capture rate of up to 98%.

DNV conducted the assessment using its recommended practice for performance verification of shipboard carbon capture and storage, marking the first real-world application of a centrifugal OCCS in marine operations. The system captures and processes a portion of the exhaust stream from the STI Spiga.

The assessment results are based on data collected during a scheduled five-month pilot period, which began in July 2025 at the Beşiktaş Shipyard in Turkey, involving the 109,999 deadweight tonnage, 2015-built STI Spiga, which was in regular commercial service at the time.

DNV reviewed and verified the methodology, calculations, and performance indicators in the report. Based on the data provided, it confirmed a peak CO2 capture rate exceeding 98%, with 55% of observations falling within the range of 86% to 98%.

Chase Dwyer, CEO and founder of Carbon Ridge, stated that this assessment under DNV's recommended practice validates the ability of Carbon Ridge's modular centrifugal OCCS technology to significantly reduce emissions from existing and newbuild vessels. Preliminary data and learnings from the STI Spiga trial further support the ambition to scale Carbon Ridge's OCCS across the global fleet, emphasizing that this work would not have been possible without the support of industry partners like Scorpio Tankers.

Chara Georgopoulou, Head of Shipboard Carbon Capture at DNV Maritime, noted that independently verified carbon capture rates are crucial for building commercially viable business models for OCCS. DNV is applying its new recommended practice for OCCS verification to ensure performance reporting is applied accurately and consistently across the industry, helping OCCS scale. She described this as an excellent collaboration with Scorpio Tankers and Carbon Ridge and looks forward to the next step of moving from periodic verification to continuous assurance using real-time data.

Cameron Mackey, Chief Operating Officer of Scorpio Tankers, stated that for any shipowner anticipating rising carbon prices or stricter regulations, Carbon Ridge's OCCS is an attractive solution. The system is straightforward to install and imposes a low operational burden on the crew. Carbon Ridge has demonstrated the technical capability and understanding required for marine deployment, and Scorpio Tankers looks forward to deepening cooperation on this foundation.

The Scorpio Tankers pilot marks the first deployment of a centrifugal OCCS system in marine operations.

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