DNV Confirms Carbon Ridge’s Centrifugal OCCS System Reaches Peak CO2 Capture Rate of 98% in Scorpio Tankers Pilot

ATHENS, Greece & SANTA MONICA, Calif.--(BUSINESS WIRE)--Jun 3, 2026--

An assessment from global classification society DNV, using its Recommended Practice for performance verification of onboard carbon capture and storage (OCCS), has confirmed Carbon Ridge’s centrifugal onboard carbon capture system can reach CO 2 capture rates of as high as 98%. This is the first maritime deployment of a centrifugal OCCS system, which during the testing was set up to capture and treat a part of the emissions stream generated by a LR2 product tanker owned by Scorpio Tankers Inc.

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The results were reached using data gathered over a scheduled five-month pilot period, which commenced in July 2025 at Besiktas Shipyard in Turkey, on the 109,999 dwt, 2015-built STI Spiga as the vessel undertook regular commercial operations.

DNV reviewed and validated the associated methodologies, calculations, and reported performance metrics and based on the data provided was able to corroborate peak CO 2 capture rates of over 98%, with 55% of the observations falling within a range of 86–98%.

“This evaluation under DNV’s Recommended Practice validates the capability of Carbon Ridge’s modular centrifugal OCCS technology to significantly reduce the emissions of existing and newbuild vessels,” said Chase Dwyer, Carbon Ridge CEO & Founder. “The initial data and learnings from the STI Spiga trial further underpin our ambitions to scale Carbon Ridge’s OCCS across the global fleet. This work would not be possible without industry partners like Scorpio Tankers Inc. supporting the deployment of these critical technologies.”

Chara Georgopoulou, Head of Onboard Carbon Capture, DNV Maritime, said: “Independently verified carbon capture rates will be vital to building out a commercially viable business model for OCCS. At DNV we are applying our new OCCS verification Recommended Practice to make sure performance reporting can be accurately and consistently applied across the industry and to help OCCS scale. This has been a great cooperation with Scorpio Tankers and Carbon Ridge, and we look forward to taking the next steps, moving from periodic verification to continuous assurance by using real-time data.”

Scorpio Tankers Inc. Chief Operating Officer Cameron Mackey said: “We’re pleased that DNV has validated the results of our trial with Carbon Ridge. For any shipowner that foresees higher prices or stricter regulations for carbon, Carbon Ridge’s OCCS is an attractive solution. Their system is both straightforward to install and places a low operational burden on the crew. Carbon Ridge has demonstrated the technical capability and understanding required for marine deployment, and we look forward to building on this partnership.”

The Scorpio Tankers Inc. pilot marks the first deployment of a centrifugal OCCS system in maritime operations, establishing Carbon Ridge as the pioneer in bringing this method of carbon capture to the shipping industry.

About Carbon Ridge

Carbon Ridge is a leading developer of onboard carbon capture and storage (OCCS) solutions for the maritime industry. Its modular, scalable, and fuel-agnostic technology provides a low-cost, near-term pathway to reduce greenhouse gas emissions from commercial shipping. Designed for seamless integration with vessel exhaust systems, Carbon Ridge’s OCCS enables up to a 75% reduction in equipment size and volume compared to conventional CCS systems and is engineered to withstand the rigor of maritime operations.

Carbon Ridge’s system enables a 90%+ reduction in CO 2 emissions and eliminates over 99% of particulate matter, NO x, and SO x, delivering a comprehensive approach to meeting and exceeding IMO global regulations. In addition to onboard carbon capture, Carbon Ridge offers end-to-end carbon solutions – including CO 2 transportation, sequestration, and monetization – providing shipowners with a complete turnkey decarbonization platform. Carbon Ridge is headquartered in Santa Monica, CA, with offices in Houston, New York and London. For more information, visit www.carbonridge.net.

Carbon Ridge OCCS installed onboard Scorpio Tankers STI Spiga

VIRGINIA WATER, England (AP) — Rory McIlroy hit a 4-iron from 230 yards to inside 2 feet and holed the eagle putt to finish off a 3-under 69 on Saturday and move into contention to win the BMW PGA Championship for the second time.

The No. 2-ranked McIlroy's birdie- eagle finish on the back-to-back closing par 5s at Wentworth left him on 11-under 205 after the third round, just two strokes off the lead held by Manuel Elvira and Filippo Cello on a crowded leaderboard.

There are 15 players within three shots of the lead — but one name stands out.

“I feel like I’ve given myself a real opportunity tomorrow,” said McIlroy, who won the European tour's flagship event in 2014 — in the same summer he captured two major titles, the British Open and the PGA Championship.

On a day when second-round leader Ryan Gerard went backward with a 75, many others took a big step forward — even if the top of the leaderboard doesn't contain too many household names.

Neither Celli (69) nor Elvira (68) have won a title on the European tour, while two of the three players tied for third place a shot back — Johannes Veerman (64) and Alejandro Del Rey (64) — are ranked No. 357 and No. 236, respectively.

The other player on 12 under is J.J. Spaun, the former U.S. Open winner who shot 68 as he looks to prove a point after missing out on selection for next week's Presidents Cup.

“It’s a bummer to miss out on the team events, whether it’s Ryder Cup or Presidents Cup,” Spaun said. “Definitely carrying a bit of a chip on my shoulder this week.”

McIlroy is in a five-man group in a tie for sixth place that also includes Adam Scott (71) and LIV Golf star Joaquin Niemann (67).

“It’s going to be an interesting day,” McIlroy said, looking ahead to the final round. “There’s a lot of people around the lead. I think the conditions the last couple of days, that’s the reason it hasn’t let anyone get away from the pack just because it has played so tricky and difficult.”

See AP’s full golf coverage here

USA's Ryan Gerard plays from the 4th fairway on day three of the PGA Championship at Wentworth Golf Club in Virginia Water, England, Saturday Sept. 19, 2026. (Adam Davy/PA via AP)

Rory McIlroy of Northern Ireland plays from the 1st fairway on day three of the PGA Championship at Wentworth Golf Club in Virginia Water, England, Saturday Sept. 19, 2026. (Adam Davy/PA via AP)

Rory McIlroy of Northern Ireland plays from the 4th fairway on day three of the PGA Championship at Wentworth Golf Club in Virginia Water, England, Saturday Sept. 19, 2026. (Adam Davy/PA via AP)

Rory McIlroy of Northern Ireland on the 16th green on day three of the PGA Championship at Wentworth Golf Club in Virginia Water, England, Saturday Sept. 19, 2026. (Adam Davy/PA via AP)