Seatrade Maritime29 Oct 2025 13:30
Https://www.seatrade-maritime.com/green-shipping/can-watered-down-fossil-fuel-and-tidal-power-decarbonise-shipping- Some 80% of maritime emissions come from tankers, bulkers and container ships and so a method of turning the large deepsea fleet into jolly green giants is necessary. With limited amounts of biofuels available, one method could be another fossil fuel treated to produce a fuel called MSAR, or Multiphase Superfine Atomised Residue.
Produced by Quadrise, MSAR and BioMSAR are effectively blended fossil fuels, 70% heavy hydrocarbons and 30% water with cationic surfactants added creating fuel droplets of between one and 10 microns, much smaller than standard droplets of around 100-microns, meaning it burns more efficiently, explained Quadrise CTO Jason Miles.
According to Miles, Quadrise has maintained a 10% price differential between HFO and MSAR, with the blended fuel reducing carbon emissions by up to 9% on two-stroke engines, but around 6% on average, and 3-5% on four-stroke engines, according to Quadrise.
In addition, MSAR and BioMSAR can reduce emissions costs, claims the company, while other benefits include a 25-30% reduction in NOx, and particulates are drastically reduced, with the fuel “burning with a white stack, like a gas,” said Miles.
MSAR was tested on a Maersk vessel, with a 96-bore, 12-cylinder Wărtsilă Flex engine, BioMSAR is now about to undergo similar tests with MSC, bizarrely on the same ship after the Swiss line acquired the vessel from Maersk.
BioMSAR has added glycerine and that improves the performance of the fuel and its efficiency.