Quantitative analysis of crude and stabilized bio-oils by comprehensive two-dimensional gas-chromatography.
Bio-oils produced by fast pyrolysis of lignocellulosic biomass have proven to be a promising, clean, and renewable energy source. To better assess the potential of using bio-oils for the production of chemicals and fuels a new comprehensive characterization method is developed. The combination of the analyical power of GC×GC-FID and GC×GC-TOF-MS allows to obtain an unseen level of detail for both crude and hydrotreated bio-oils originated from pine wood biomass. The use of GC×GC proves to be essential to capture the compositional differences between crude and stabilized bio-oils. Our method uses a flame ionization detector to quantify the composition, while GC×GC-TOF-MS is used for the qualitative analysis. This method allows quantification of around 150 tentatively identified compounds, describing approximately 80% of total peak volume. The number of quantified compounds in bio-oils is increased with a factor five compared to the present state-of-the-arte. The necessity of using multiple internal standards (dibutyl ether and fluoranthene) and a cold-on column injector is also verified.
Laboratory for Chemical Technology, Ghent University, Technologiepark 918, 9052 Zwijnaarde, Belgium.
Marko R
MR
Djokic
Thomas
T
Dijkmans
Guray
G
Yildiz
Wolter
W
Prins
Kevin M
KM
Van Geem
D056804:Biofuels / Q000032:analysis*; D018533:Biomass; D002849:Chromatography, Gas / Q000379:methods*; D056148:Chromatography, Reverse-Phase; D008401:Gas Chromatography-Mass Spectrometry; D009930:Organic Chemicals / Q000032:analysis / Q000737:chemistry
D056804:Biofuels; D009930:Organic Chemicals