Decolorization of Biofuels and Biofuel Blends for Biogenic Carbon Quantification with Liquid Scintillation Radiocarbon Direct Measurement

James Lee, Zheng-Hua Li, Earl Christensen, Teresa Alleman

Research output: Contribution to journalArticlepeer-review

3 Scopus Citations

Abstract

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.
Original languageAmerican English
Pages (from-to)7592-7598
Number of pages7
JournalEnergy and Fuels
Volume36
Issue number14
DOIs
StatePublished - 2022

NREL Publication Number

  • NREL/JA-5100-83138

Keywords

  • analytical chemistry
  • bio-based carbon
  • biofuels
  • coprocessing
  • LSC

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