Journal
ENERGY & FUELS
Volume 36, Issue 14, Pages 7592-7598Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.energyfuels.2c01166
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Funding
- U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (BETO)
- National Renewable Energy Laboratory (NREL) [DE-AC52-06NA25396, 3.4.3.308]
- National Renewable Energy Laboratory (NREL)
- U.S. Department of Energy (DOE) [DE-AC36-08GO28308]
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This study explores the impact of decolorization techniques on the radiocarbon content of different fuel types, emphasizing the need for caution when assessing biofuel blend levels.
Radiocarbon activity of fuels is a direct analog to the biogenic fraction of carbon in the fuel. The amount of radiocarbon in a fuel sample may be determined by liquid scintillation direct analysis if the sample is relatively transparent to ultraviolet light. However, many biofuels are colorful which adversely affects the counting efficiency of this technique and therefore the precision which the biofuel blend level may be determined. In such cases, decolorization may be an approach to improve measurement precision. Here, we present the effectiveness of several decolorization techniques for different fuel types. For some fuels, decolorization impacted the radiocarbon content of the sample; therefore, caution is necessary to ensure reliable assessment of biofuel blend levels.
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