News International Sugar Journal

Tracking unburnt biofuels in atmosphere [Registered]

Researchers at the University of Miami Rosenstiel School of Marine & Atmospheric Science have discovered a technique to track urban atmospheric plumes thanks to a unique isotopic signature found in vehicle emissions. The scientists Brian Giebel, Drs. Daniel Riemer and Peter Swart discovered that ethanol mixed in vehicle fuel is not completely burned, and that ethanol released in the engine’s exhaust has a higher 13C to 12C ratio when compared to natural emissions from most living plants. In other words, the corn and sugarcane used to make biofuels impart a unique chemical signature that is related to the way these…

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