Novel 1H low field nuclear magnetic resonance applications for the field of biodiesel

Paula Berman, Adi Leshem, Oren Etziony, Ofer Levi, Yisrael Parmet, Michael Saunders, Zeev Wiesman

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Background: Biodiesel production has increased dramatically over the last decade, raising the need for new rapid and non-destructive analytical tools and technologies. 1H Low Field Nuclear Magnetic Resonance (LF-NMR) applications, which offer great potential to the field of biodiesel, have been developed by the Phyto Lipid Biotechnology Lab research team in the last few years. Results: Supervised and un-supervised chemometric tools are suggested for screening new alternative biodiesel feedstocks according to oil content and viscosity. The tools allowed assignment into viscosity groups of biodiesel-petrodiesel samples whose viscosity is unknown, and uncovered biodiesel samples that have residues of unreacted acylglycerol and/or methanol, and poorly separated and cleaned glycerol and water. In the case of composite materials, relaxation time distribution, and cross-correlation methods were successfully applied to differentiate components. Continuous distributed methods were also applied to calculate the yield of the transesterification reaction, and thus monitor the progress of the common and in-situ transesterification reactions, offering a tool for optimization of reaction parameters. Conclusions: Comprehensive applied tools are detailed for the characterization of new alternative biodiesel resources in their whole conformation, monitoring of the biodiesel transesterification reaction, and quality evaluation of the final product, using a non-invasive and non-destructive technology that is new to the biodiesel research area. A new integrated computational-experimental approach for analysis of 1H LF-NMR relaxometry data is also presented, suggesting improved solution stability and peak resolution.

Original languageEnglish
Article number55
JournalBiotechnology for Biofuels
Volume6
Issue number1
DOIs
StatePublished - 19 Apr 2013

Keywords

  • Biodiesel
  • Biodiesel physical properties
  • Chemometrics
  • H low field nuclear magnetic resonance
  • Laplace inversion
  • Transesterification

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology
  • Renewable Energy, Sustainability and the Environment
  • Energy (all)
  • Management, Monitoring, Policy and Law

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