Impact of Sugarcane Renewable Fuel on In-Use Gaseous and Particulate Matter Emissions from a Marine Vessel

This is the authors' abstract. We don't add key points for this paper.

In-use emissions aboard a Stalwart class vessel, the T/S State of Michigan, were measured from a four-stroke marine diesel generator operating on two fuels: ultra-low-sulfur diesel (ULSD) fuel and ULSD mixed with Amyris renewable diesel (S33; 33% by volume) produced from sugarcane feedstocks with 67% by volume ULSD. Measurements followed the International Organization for Standardization (ISO) 8178 procedures and protocols. Gaseous emissions reported include nitrogen oxides (NO x ), carbon monoxide (CO), and carbon dioxide (CO 2 ), while reported particulate matter (PM) emissions include PM 2.5 mass, elemental carbon (EC), and organic carbon (OC). Overall, a 4% reduction in NO x emissions, a 10% increase in CO, and a 2% increase in CO 2 were observed with S33. For PM, no statistically significant differences were seen with S33. PM 2.5 was dominated by OC for both fuels. Overall, there was a 26% reduction in EC and an 8% reduction in OC with S33.