UECC Launches Cashew Nut Shell Marine Biofuel Partnership


  • UECC is collaborating with Lloyd’s Register FOBAS, Wärtsilä, and ACT Group to advance studies into cashew nut shell liquid (CNSL)-based biofuel.
  • The joint efforts resulted in structured and phased processes that include extensive engine test bench trials and analytical assessments.
  • FSI.100 offers a number of advantages: a certified sustainable, fully controlled supply chain that ensures traceability and accountability from the point of origin to extraction, conversion, and consumption.

Dutch supplier ACT Group is collaborating with classification society Lloyd’s Register, Finnish engine manufacturer Wartsila, and Norwegian shipping firm United European Car Carriers (UECC) on the development and evaluation of cashew nut shell liquid (CNSL) as a biofuel in marine biodiesel blends, reads an official release.

Development and evaluation of cashew nut shell liquid

ACT confirmed the launch of a CNSL-based biofuel called “FSI.100“, which has gone through extensive engine testing with various blend combinations. The CNSL-based biofuel has now received approval from engine manufactures to be blended as a 30pc component with marine gasoil (MGO) to form a marine biodiesel blend for the purpose of further sea trials.

ACT confirmed that the FSI.100 product will benefit from lower acidity, and there is potential for the product to be compatible for blending with fuel oil. CNSL is an advanced biodiesel feedstock, making it a more appealing and price competitive option to buyers compared with other biodiesel feedstocks.

The development follows a report by Lloyd’s Register fuel oil bunkering analysis and advisory service (FOBAS) that pointed to a correlation between engine fuel pump and injector-related damage in vessels and the presence of “unestablished” CNSL in the utilised marine fuels.

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Source: UECC