Daphne Technology and Maran Gas Maritime, part of the Angelicoussis Group, have announced the successful completion of their joint pilot project — the first-ever shipboard trial of the SlipPure™ Plasma-Catalytic Methane Slip Aftertreatment system. Conducted aboard the LNG carrier Maran Gas Chios, this milestone represents a major step in reducing methane emissions and advancing maritime decarbonisation.
The pilot underscores the growing industry focus on methane slip — the release of unburned methane from dual-fuel marine engines — which remains one of the main challenges in unlocking the full environmental potential of LNG as a marine fuel. To address this, Daphne Technology retrofitted its SlipPure™ system on board the Maran Gas Chios to assess the performance of plasma-catalytic abatement under real operating conditions.
Demonstrating Methane Reduction at Sea
During the trial, Daphne Technology achieved methane slip reductions of up to 4 ± 2 g/kWh, validating the feasibility of applying plasma-catalytic treatment directly to vessel exhaust systems. These results mark a breakthrough in methane mitigation and provide crucial insights for future system enhancements.
Ivan Raleff, Managing Director of Daphne Technology in Switzerland, described the project as a bold step into new territory for shipboard emissions technology. He emphasised that the learnings gained from this real-world trial are instrumental to the next phase of product development, expressing gratitude to the Angelicoussis Group for their trust and collaboration.
Similarly, Andreas Spertos, Technical Director at Maran Gas Maritime Inc., highlighted the technical complexity of tackling methane slip in marine environments, noting that the success of the Maran Gas Chios trial demonstrates the potential of this emerging technology and provides a foundation for continuous improvement.
Collaboration Driving Innovation
The partnership between Daphne Technology and Maran Gas exemplifies the power of collaboration in addressing maritime emissions. Both organisations view the pilot as a crucial milestone in building confidence for broader deployment of methane abatement systems.
Beyond the immediate technical achievement, the project illustrates the vital role of early adopters in accelerating the energy transition. By supporting the testing of first-of-a-kind (FOAK) solutions under commercial conditions, companies like the Angelicoussis Group are helping de-risk innovative technologies that can shape the future of sustainable shipping.
Scaling Up for the Energy Transition
The SlipPure™ Plasma-Catalytic system, together with Daphne Technology’s PureMetrics™ emissions monitoring platform, continues to evolve toward scalable methane abatement solutions for both maritime and land-based applications. As the shipping industry advances toward net-zero goals, such technologies will be central to bridging the gap between LNG’s current performance and its long-term decarbonisation potential.
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Source: Daphne Technology
