The Global Centre for Maritime Decarbonisation (GCMD) has successfully completed trialling two supply chains of biofuel blends sourced from different origins. The supply chain trials encompassed tracing biofuels from their production sites outside Singapore, to Singapore where the fuels were blended and bunkered.
Two sustainable biofuel blends were used in their trials. One is Used Cooking Oil Methyl Ester (UCOME), a type of Fatty Acid Methyl Ester (FAME), blended with Very Low Sulphur Fuel Oil (VLSFO). The other is UCOME blended with High Sulphur Fuel Oil (HSFO). The UCOME used in both biofuel blends is produced from residue or feedstocks labelled 100% waste and is ISCC certified.
In the first supply chain, Chevron provided B24 VLSFO (24% biofuel blend) to CMA CGM Maupassant and MOL ENDOWMENT, the latter a vessel operated by ONE.
The supply chain trials were undertaken under business-as-usual conditions in which individual fuel purchasers nominated their fuel suppliers of choice, and bunkering took place with vessels on commercial routes. GCMD brought together marine fuel purchasers and suppliers, and balanced the dynamic needs of the many diverse stakeholders, vessel schedules, equipment and asset availabilities, spanning geographies and factoring in contingencies to complete the two supply chain trials.
To ensure transparency and integrity of the supply chains for biofuels and biofuel blends from end-to-end, GCMD deployed a range of tracing techniques, including dosing with physical tracers, fingerprinting, and deploying a lock-and-seal methodology, all of which were complemented with laboratory testing and analyses at numerous pre-determined points from fuel production to consumption. The strong collaboration GCMD fostered with the marine fuel suppliers and purchasers ensured that the physical tracers were added, and biofuels and their blends were sampled as planned.
On lessons learned with the completion of two supply chain trials, Dr. Prapisala Thepsithar, director of projects at GCMD and project lead on this drop-in fuel assurance pilot, said
Through these trials, we have gained a better appreciation of the complexities of real-world operations. We have learned the hard lesson that not all tracing techniques are directly applicable for tracing sustainable biofuels as they stand, and we are currently undertaking efforts to refine their deployment.
Over the three months during which the trials took place, the quality of the biofuel blends remained stable. With the data collected from the completed trials and additional data to be collected from the three other supply chains, GCMD is working with Boston Consulting Group (BCG), one of its Impact Partners, to develop a robust framework for GHG accounting and conduct cost-benefit analysis of deploying biofuels.
